JP3741764B2 - 3D image creation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a three-dimensional image creating apparatus that has a pen input function capable of detecting writing pressure and creates a stereoscopically visible image by pen input.
[0002]
[Prior art]
Conventionally, as a 3D video playback system, each video for the right eye and left eye is alternately displayed on the display in time, and the screen is viewed using so-called stereoscopic glasses with a built-in shutter function. Those that can see stereoscopic images are known.
[0003]
In addition, by using liquid crystal, flicker can be prevented by alternately arranging display areas for display so that the polarization planes in the right-eye and left-eye images for stereoscopic video are orthogonal to each other. There has been proposed a liquid crystal display device for stereoscopic display that eliminates the need for connection to stereoscopic glasses.
[0004]
On the other hand, the following two are known as pen pressure pens capable of detecting the pen pressure. The writing pressure pen in Japanese Patent Application Laid-Open No. Sho 62-1024 is provided with a rotary switch on the pen, and the color, density, spread three-dimensional coordinates, etc. are set according to the state of the switch. Japanese Patent Laid-Open No. 63-213814 discloses that a pressure input device such as a strain gauge is incorporated in a pen input device using a tablet, and a signal is output according to a load, thereby converting it into information such as three-dimensional coordinates. The structure to perform is disclosed.
[0005]
[Problems to be solved by the invention]
However, even though it is possible to stereoscopically view a predetermined video or the like in the past, an information processing device such as a word processor cannot create an image (hereinafter referred to as a three-dimensional image) that can be stereoscopically viewed by the user. Has the problem.
[0006]
The present invention has been made to solve the above-described conventional problems, and its purpose is to allow the user to easily create a three-dimensional image by calculating the parallax of the image drawn by the user. The object is to provide a three-dimensional image creation apparatus.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a three-dimensional image creating apparatus according to claim 1 of the present invention includes an input unit that draws a first image while changing a writing pressure to an arbitrary position on a display screen, Detection means for detecting a two-dimensional coordinate value and a pen pressure value in the first image, a parallax calculation means for calculating a parallax based on the two-dimensional coordinate value and the pen pressure value, and a first position at a position suitable for stereoscopic viewing. Display means for displaying a second image having a parallax with respect to the first image.
[0008]
According to the above configuration, when the first image is drawn while changing the writing pressure to an arbitrary position on the display screen by the input means, the two-dimensional coordinate value and the writing pressure value of the first image are calculated by the detecting means. Is done. When these values are used, the parallax calculation means can calculate the parallax. Then, a second image having a parallax with respect to the first image is displayed at a position suitable for stereoscopic viewing by the display means. That is, when the first image is drawn while changing the writing pressure, the second image is formed with the handwriting corresponding to the writing pressure.
[0009]
The user can view the first image and the second image at the same time as a single image having a depth with respect to the display screen. As described above, the three-dimensional image creation apparatus of the present invention can easily create an illustration or the like that the user can stereoscopically view.
[0010]
In the three-dimensional image creation apparatus according to claim 2, in addition to the configuration according to claim 1, the parallax calculation means adds a value proportional to the writing pressure value to the X coordinate value in the two-dimensional coordinate value or The parallax is calculated by subtracting.
[0011]
According to the above configuration, in the case of the intersection method, the parallax is calculated by adding a value proportional to the writing pressure value to the X coordinate value in the two-dimensional coordinate value. Conversely, in the parallel method, the parallax is calculated by subtraction. Thereby, since the parallax can be easily calculated, the configuration of the three-dimensional image creation apparatus can be simplified.
[0012]
In the three-dimensional image creation device according to claim 3, in addition to the configuration according to claim 1, the parallax calculation unit calculates a three-dimensional coordinate value based on the two-dimensional coordinate value and the writing pressure value, It is characterized by calculating a parallax according to a three-dimensional coordinate value.
[0013]
According to the above configuration, the three-dimensional coordinate value is calculated based on the two-dimensional coordinate value and the writing pressure value, and further, the parallax corresponding to the three-dimensional coordinate value is calculated. Thereby, since an accurate parallax is calculated, it becomes possible to create an elaborate three-dimensional image.
[0014]
In addition to the configuration described in claim 1, 2, or 3, the three-dimensional image creation apparatus according to claim 4 calculates the parallax in real time when the parallax calculation means draws the first image. The display means displays the second image in real time.
[0015]
According to the above configuration, the second image having the parallax in real time is displayed when the first image is drawn. Accordingly, since the image can be drawn while stereoscopically viewing, it is possible to faithfully create a three-dimensional image based on the image that the user wants to draw.
[0016]
The three-dimensional image creation apparatus according to claim 5 has a flattening means for flattening a change with time of the writing pressure value in addition to the configuration according to claim 1, 2, 3, or 4. It is characterized by.
[0017]
According to the above configuration, the change with time of the writing pressure value obtained when the first image is drawn by the flattening means becomes smooth. Accordingly, even when the writing pressure changes due to hand shake or the like when the first image is drawn, it is possible to minimize the difficulty in making the drawn three-dimensional image difficult to stereoscopically view.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
The embodiment of the present invention will be described with reference to FIGS. 1 to 16 as follows.
[0019]
As shown in FIG. 1, the three-dimensional image creation apparatus according to the present embodiment includes a pen pressure pen 1, a tablet 2, a display unit 3, a coordinate detection circuit 4, a pen pressure detection circuit 5, a keyboard 6, and a numerical calculation circuit 9. , RAM 10, ROM 11, and control device 12.
[0020]
The writing pressure pen (input means) 1 includes a pressure sensitive element such as a strain gauge and outputs an electrical signal in accordance with the writing pressure. The tablet 2 detects a point on the screen in the display unit (display means) 3 designated by the writing pressure pen 1. The coordinate detection circuit 4 calculates the two-dimensional coordinates of the designated point. The writing pressure detection circuit 5 converts an electrical signal from the writing pressure pen 1 into writing pressure information. The keyboard 6 is used for inputting numerical values such as coordinates. A numerical operation circuit (parallax calculating means and flattening means) 9 calculates a simple parallax, that is, calculates the parallax by changing the X coordinate value in the two-dimensional coordinate value at a rate corresponding to the writing pressure value. The numerical operation circuit 9 calculates the flattening of the pen pressure change. The RAM 10 stores information such as a pair of left and right illustrations (three-dimensional illustrations) having a created parallax, and stores grouped three-dimensional illustration information. The ROM 11 stores information such as symbols and pictorial symbols in advance. The control device 12 performs control between all the above elements.
[0021]
Note that the detection means described in claim 1 corresponds to the tablet 2, the coordinate detection circuit 4, and the writing pressure detection circuit 5.
[0022]
Based on the flowchart of FIG. 2, the 3D illustration creation operation of the 3D image creation apparatus having the above-described configuration will be described.
[0023]
In step (hereinafter abbreviated as S) 1, an illustration or the like is drawn with the pen 1 in the left or right frame on the three-dimensional (3D) illustration creation screen as shown in FIG. For example, a right-handed user may draw in the right frame in the figure, and a left-handed user may draw in the left frame. Here, on the 3D illustration creation screen, the left-eye frame and the right-eye frame having a certain size are arranged at a distance allowing stereoscopic viewing from each other.
[0024]
Illustrations and the like displayed on the screen are composed of curves and the like, and the curves are also composed of individual dots. Therefore, when the illustration is drawn in S1, the coordinate detection circuit 4 detects the two-dimensional coordinate values of the dots, and the writing pressure detection circuit 5 detects the output value (writing pressure value) of the writing pressure pen 1 ( S2). These two-dimensional coordinate values and output values are stored in the RAM 10 (S3). In S4, it is determined whether or not the pen input in one frame has been completed. If it has not been completed, the process returns to S1, and if it has been completed, the process proceeds to S5.
[0025]
In S5, the numerical calculation circuit 9 calculates the coordinates of each dot displayed in the other frame. In this method, a numerical value proportional to the writing pressure is added to or subtracted from the X coordinate of each dot input in one frame, and the display is performed in the other frame based on the coordinates obtained thereby. . For example, one dot P constituting the illustration drawn in the right frame_nrThe coordinates of (x_nr, Y_nr) And the output value from the pen 1 is k_nThen, the dot P displayed in the left frame_nlCoordinates (x_nl, Y_nl) Is expressed as follows.
[0026]
That is, in the case of the parallel method,
(X_nl, Y_nl) = (X_nr-A × k_n, Y_nr) ……… (1)
And in the case of the intersection method,
(X_nl, Y_nl) = (X_nr+ A × k_n, Y_nr) ……… (2)
It is. However, a is a constant, and the degree (depth) of stereoscopic effect can be adjusted by changing this. The parallel method is a method of viewing the illustration in the right frame with the right eye and the illustration of the left frame with the left eye, and the crossing method is a method of viewing the left frame with the left eye and the right frame with the left eye.
[0027]
In S6, an illustration having the parallax calculated by the above method is displayed in the other frame. For example, in the parallel method, as shown in FIG. 4, if one line is drawn on the right frame while curving to the right while gradually increasing the writing pressure,_nSince the line gradually increases, a line with a gentler curve than the line in the right frame is displayed in the left frame. When this is viewed in parallel, one line appears to gradually become deeper.
[0028]
As described above, when the three-dimensional image creating apparatus according to the present embodiment draws the first illustration by pen input in one frame, the second frame is drawn with the handwriting corresponding to the pen pressure in the other frame. It is a configuration in which an illustration is formed. At this time, since the left and right frames are arranged at a position where stereoscopic viewing is possible, stereoscopic viewing can be easily performed. As a result, the user himself can easily create a three-dimensional illustration. Since not only two-dimensional information but also three-dimensional information can be created, three-dimensional information can be transmitted by printing it.
[0029]
Further, since the parallax is calculated by adding or subtracting a numerical value proportional to the writing pressure to the X coordinate of the point input in one frame, the parallax can be easily calculated. As a result, the configuration of the three-dimensional image creation apparatus can be simplified.
[0030]
In addition to the method of displaying an illustration in the other frame after drawing the illustration in one frame as described above, the illustration can also be displayed in the other frame in real time.
[0031]
As shown in the flowchart of FIG. 5, like S1 and S2 in FIG. 2, when an illustration or the like is drawn with the pen 1 in the left or right frame on the 3D illustration creation screen (S11), the illustration The two-dimensional coordinate value and the output value of the pen 1 are detected at each dot (S12). These two-dimensional coordinate values and output values are not stored in the RAM 10, but are sent to the numerical calculation circuit 9 as they are, and are calculated for each dot based on the above formula (1) or (2) (S13). Based on the calculation result, display is performed for each dot in the other frame (S14). In S15, it is determined whether or not the pen input in one frame has been completed. If it has not been completed, the process returns to S11, and if it has been completed, the process is terminated.
[0032]
As described above, when the second illustration is displayed in real time, the three-dimensional illustration can be drawn while confirming the depth in stereoscopic view. Can be created.
[0033]
By the way, when drawing an illustration with the pen 1 on the display screen, it is conceivable that the pen pressure slightly changes due to hand shake or the like. At this time, if a graph is created by taking the passage of time on the X-axis and the load (output value) by the pen pressure pen 1 on the Y-axis, for example, a graph having irregularities as shown in FIG. If the user cannot smoothly change the writing pressure in this way, stereoscopic viewing may be difficult to perform. Therefore, the numerical operation circuit 9 performs processing for absorbing and flattening such variation in writing pressure.
[0034]
Here, a calculation example of the writing pressure flattening is given below. Time t₁To t_ThreeEach output value k between₁Or k_ThreeAverage value k '₂Is
k '₂= (K₁+ K₂+ K_Three) / 3
Similarly, time t₂To t_FourEach output value k between₂Or k_FourAverage value k '_ThreeIs
k '_Three= (K₂+ K_Three+ K_Four) / 3
It becomes. By continuing this, the output value is flattened. That is, any dot P_nOutput value k_nThe flattening of
k '_n= (K_n-1+ K_n+ K_{n + 1}) / 3
It is expressed.
[0035]
As a result, the output value is flattened as indicated by the solid line in FIG. Therefore, even when the writing pressure changes due to hand shake or the like when the first illustration is drawn, it is possible to minimize the difficulty in making the drawn three-dimensional illustration difficult to view stereoscopically. In other words, the unevenness of the illustration when viewed stereoscopically is reduced, making it easier to see.
[0036]
In addition, in order to stereoscopically view a three-dimensional illustration using a so-called parallel method, some degree of familiarity is required. However, there are cases where stereoscopic viewing is not possible in a certain format depending on the distance from the display screen to the user's eyes and individual differences. In order to cope with such a case, the three-dimensional image creation apparatus may have a shape of the left and right frames and a position adjustment function for adjusting the positional relationship between the left and right images.
[0037]
As shown in the flowchart of FIG. 8, first, a 3D illustration creation screen is displayed (S21). Before creating the three-dimensional illustration, the size of the frame is adjusted by enlarging or reducing the left and right frames (S22), and the interval between the left and right frames is adjusted (S23). Then, a visual check is performed (S24), and if the user determines that it is easy to see the three-dimensional illustration with reference to the two frames, the adjustment is terminated, and if it is determined that it is difficult to see, the process returns to S22 and the adjustment is performed again.
[0038]
As described above, by adjusting the shape and position of the left and right frames by pen input or the like, stereoscopic viewing can be performed in a format suitable for an individual, so that anyone can easily perform stereoscopic viewing. Further, even a user who has no experience of stereoscopic vision can relatively easily stereoscopically view.
[0039]
Next, a method for editing and correcting the three-dimensional illustration created by the above method will be described.
[0040]
As shown in the flowchart of FIG. 9, first, the range of the created three-dimensional illustration is designated with the pen 1 or the like (S31). At this time, for example, when the range of the illustration in the right frame is designated, the illustration in the left frame is also automatically designated (see FIG. 10). The designated three-dimensional illustration is registered as a group (S32). The position of the registered illustration is moved or the depth is adjusted using the pen 1 (S33). Here, the depth adjustment is an adjustment in the vertical direction with respect to the illustration display screen when stereoscopically viewed. On the actual screen, the change in the X direction can be seen from the above formula (1) or (2). That is. Then, confirmation is performed by stereoscopic viewing (S34). If it is determined that the user can easily view the three-dimensional illustration, the adjustment is terminated, and if it is determined that it is difficult to view, the process returns to S33 and the adjustment is performed again.
[0041]
Thus, the illustration position and depth direction can be corrected in groups. In addition, editing operations such as changing the position to combine a plurality of groups or changing the depth are possible.
[0042]
Further, as shown in the flowchart of FIG. 11, the depth direction can be corrected by instructing a curve or the like constituting the three-dimensional illustration. That is, a certain point on an element constituting the created three-dimensional illustration is designated with the pen 1 (S41). At this time, for example, when a point in the right frame is specified, the point in the left frame is also automatically specified (see FIG. 12). By correcting the writing pressure as it is, the depth direction around the point is corrected (S42). Then, confirmation is performed by stereoscopic viewing (S43). If not, the process returns to S42 and the adjustment is continued again. If it is satisfactory, the depth is determined by pressing the confirm button while maintaining the writing pressure. Thereafter, the presence / absence of another correction part is determined (S44). If there is a correction part, the process returns to S41, and if not, the process ends.
[0043]
As a result, the depth of the 3D illustration can be partially adjusted, so that the created 3D illustration can be easily corrected.
[0044]
In addition, when performing partial depth direction correction, it is also possible to perform adjustment by numerical input in addition to adjustment by pen input as described above. As shown in the flowchart of FIG. 13, a certain point on an element constituting the created three-dimensional illustration is designated with the pen 1 (S51). An accurate depth (Z coordinate) value is input from the keyboard 6 or the like (S52) and displayed (S53). Then, similarly to S43 and S44 of FIG. 11, the confirmation of stereoscopic vision and the presence or absence of other correction portions are determined (S54 and S55), and the process is terminated. Thereby, since numerical input is performed, three-dimensional illustrations can be corrected more accurately than pen input.
[0045]
As described above, as a result of the above correction / editing, a three-dimensional illustration can be finished more accurately.
[0046]
Further, as shown in the flowchart of FIG. 14, it is possible to have a function of calling pre-registered illustrations and symbols and changing them into illustrations and symbols that can be stereoscopically viewed. That is, a symbol or pictorial symbol registered in the ROM 11 or an illustration registered in the RAM 10 is called (S61), and is placed in either the left or right frame of the 3D illustration creation screen (S62). The depth is adjusted by adjusting the writing pressure while instructing the placed illustration with the writing pressure pen 1 (S63), and displayed in the other frame (S64). It is determined whether or not another illustration is to be arranged (S65). If it is added, the process returns to S61 to call a symbol or a pictorial symbol again.
[0047]
Thereby, the three-dimensional arrangement | positioning of the illustration and symbol registered previously, or the illustration created by the user with the pen 1 etc. can be performed. As a result, various expressions such as illustrations are possible.
[0048]
Note that it may be difficult for a user who is not good at stereoscopic vision or a beginner to easily create a created three-dimensional illustration. In such a case, for example, as shown in FIG. 15, the illustration of the right frame may be displayed in blue and the illustration of the left frame in red. If the user uses so-called red / blue glasses with a red filter attached to the right side and a blue filter attached to the left side, a stereoscopic view can be obtained as in the parallel method. As a result, even when stereoscopic viewing is difficult, stereoscopic viewing can be easily performed.
[0049]
Moreover, when it is difficult to view stereoscopically as described above, it is also possible to adopt a configuration in which a three-dimensional effect is produced by the difference in the colors of the illustrations and the brightness without using red and blue glasses. In this method, the pen pressure is divided in stages, and different colors are assigned to each level, and the illustration is colored by adding light and dark. For example, as shown in FIG. 16, a thing drawn with a low writing pressure is displayed brightly as being three-dimensionally in front, and a thing drawn with a high writing pressure is displayed darkly as being in the back. In this manner, the depth can be confirmed on the two-dimensional illustration from the color tone and brightness change of the illustration, and a certain degree of stereoscopic effect can be obtained.
[0050]
[Embodiment 2]
The second embodiment of the present invention will be described with reference to FIGS. 17 to 19 as follows. For convenience of explanation, the same members as those shown in the drawings of the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0051]
As shown in FIG. 17, the three-dimensional image creation apparatus according to the present embodiment includes a three-dimensional coordinate calculation circuit 7 and a parallax calculation circuit 8 instead of the numerical operation circuit 9 according to the first embodiment. The configuration is the same as in the first embodiment.
[0052]
The three-dimensional coordinate calculation circuit 7 calculates three-dimensional coordinates based on information from the coordinate detection circuit 4 and the writing pressure detection circuit 5. The parallax calculation circuit 8 calculates the parallax from the calculated three-dimensional coordinates. Note that the parallax calculation means described in claim 1 corresponds to the three-dimensional coordinate calculation circuit 7 and the parallax calculation circuit 8.
[0053]
Based on the flowchart of FIG. 18 and FIG. 19, the 3D illustration creation operation of the 3D image creation apparatus having the above-described configuration will be described.
[0054]
First, as an initial setting, the user's eye interval D₁(S71) and the distance L from the eyes to the display screen is input (S72). After that, in S73 and S74, as with S1 and S2 in FIG. 2, the pen pressure pen is changed while changing the pen pressure within one of the left and right frames (left frame in the present embodiment) on the 3D illustration creation screen. By moving 1 to draw an illustration or the like, the two-dimensional coordinate value and the output value (writing pressure value) are detected.
[0055]
Three-dimensional coordinates are calculated based on these two-dimensional coordinate values and output values at each point (S75). This three-dimensional coordinate is the desired position P when actually viewed stereoscopically._rlThis is the distance Z (depth) from the eye to the eye. This depth is displayed on the display screen as, for example, “85 cm” (S76), and the user draws an illustration while adjusting the writing pressure while looking at the value.
[0056]
At this time, point P with the left frame_lThe coordinates of (x_l, Y_l), Point P_lPoint P to be displayed in the right frame corresponding to_rThe coordinates of (x_r, Y_r), Point P_lAnd P_rDistance D to₂Is
D₂= D₁× (Z-1) / Z
And the coordinates (x_r, Y_r)
x_r= X_l+ D₁× (Z-1) / Z
y_r= Y_l
(S77). Based on the two-dimensional coordinates, an illustration having parallax is displayed in the other frame (S78). This point P_lAnd P_rP in the parallel method_rlIt looks like there is a point at the position. This point is created continuously to create a 3D illustration. In S79, it is determined whether or not the pen input in one frame has been completed. If it has not been completed, the process returns to S73, and if it has been completed, the process is terminated.
[0057]
As described above, the three-dimensional image creation apparatus according to the present embodiment calculates a three-dimensional coordinate value based on the two-dimensional coordinate value and the writing pressure value, and calculates a parallax corresponding to the three-dimensional coordinate value. It is. As a result, compared to the case of the first embodiment, although the apparatus configuration is complicated, more accurate parallax is calculated, and thus it is possible to create an elaborate three-dimensional image.
[0058]
Note that the 3D image creation apparatus according to the present embodiment has a configuration in which when the first illustration is drawn in one frame, the second illustration is displayed in real time in the other frame. After all the three-dimensional coordinates are stored in the RAM 10, the second illustration can be displayed.
[0059]
In addition, the 3D image creation apparatus according to the present embodiment can also perform processing such as editing / correction as in the first embodiment. In addition, by adding the numerical operation circuit 9 to the above configuration, the writing pressure flattening process can be performed as in the first embodiment.
[0060]
【The invention's effect】
As described above, the three-dimensional image creation apparatus according to claim 1 of the present invention includes an input unit that draws the first image while changing the writing pressure to an arbitrary position on the display screen, and the first image. A detection unit that detects a two-dimensional coordinate value and a writing pressure value, a parallax calculation unit that calculates a parallax based on the two-dimensional coordinate value and the writing pressure value, and a first image at a position suitable for stereoscopic viewing. Display means for displaying a second image having parallax.
[0061]
Accordingly, when the first image is drawn while changing the writing pressure, a second image having a parallax with respect to the first image is formed, so that an image that can be stereoscopically viewed by the user can be easily created. There is an effect that can be.
[0062]
In the three-dimensional image creation apparatus according to claim 2, in addition to the configuration according to claim 1, the parallax calculation means adds a value proportional to the writing pressure value to the X coordinate value in the two-dimensional coordinate value or In this configuration, the parallax is calculated by subtraction.
[0063]
Accordingly, since the parallax can be easily calculated, there is an effect that the configuration of the three-dimensional image creation apparatus can be simplified.
[0064]
In the three-dimensional image creation device according to claim 3, in addition to the configuration according to claim 1, the parallax calculation unit calculates a three-dimensional coordinate value based on the two-dimensional coordinate value and the writing pressure value, In this configuration, the parallax is calculated according to the three-dimensional coordinate value.
[0065]
Thereby, since an accurate parallax is calculated, it is possible to create an elaborate three-dimensional image.
[0066]
In addition to the configuration described in claim 1, 2, or 3, the three-dimensional image creation apparatus according to claim 4 calculates the parallax in real time when the parallax calculation means draws the first image. The display means is configured to display the second image in real time.
[0067]
Thus, since the image can be drawn while stereoscopically viewing, there is an effect that the user can faithfully create a three-dimensional image based on the image to be drawn.
[0068]
The three-dimensional image creating apparatus according to claim 5 has a structure including a flattening unit for flattening a change of the writing pressure value with time in addition to the structure according to claim 1, 2, 3, or 4. It is.
[0069]
As a result, even when the writing pressure changes due to camera shake or the like when the first image is drawn, it is possible to minimize the difficulty in making the drawn three-dimensional image difficult to stereoscopically view. Play.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a three-dimensional image creation apparatus according to a first embodiment of the present invention.
FIG. 2 is a flowchart showing a 3D illustration creation operation of the 3D image creation apparatus.
FIG. 3 is an explanatory diagram showing an example of a three-dimensional illustration creation screen.
FIG. 4 is an explanatory diagram showing a display result when a single line is drawn while changing the writing pressure.
FIG. 5 is a flowchart showing another 3D illustration creation operation of the 3D image creation apparatus.
FIG. 6 is a graph showing changes in time and writing pressure.
FIG. 7 is a graph showing flattening of a change in writing pressure.
FIG. 8 is a flowchart showing an operation of adjusting the frame shape and the frame position.
FIG. 9 is a flowchart showing a three-dimensional illustration editing operation.
FIG. 10 is an explanatory diagram showing a screen state when a range is specified.
FIG. 11 is a flowchart showing a correction operation in the depth direction of a three-dimensional illustration by pen input.
FIG. 12 is an explanatory diagram showing a screen state in which a correction point is designated.
FIG. 13 is a flowchart showing a correction operation in the depth direction of a three-dimensional illustration by numerical input.
FIG. 14 is a flowchart showing a call editing operation.
FIG. 15 is an explanatory diagram showing a screen state when stereoscopically viewed with red and blue glasses.
FIG. 16 is an explanatory diagram showing a screen state when a stereoscopic effect is expressed by color shading.
FIG. 17 is a block diagram illustrating a configuration of a three-dimensional image creation apparatus according to a second embodiment of the present invention.
FIG. 18 is a flowchart showing a 3D illustration creation operation of the 3D image creation apparatus.
FIG. 19 is an explanatory diagram illustrating a method of calculating parallax according to a three-dimensional coordinate value.
[Explanation of symbols]
1 Pressure pen
2 tablets
3 Display section
4 Coordinate detection circuit
5 Pen pressure detection circuit
7 Three-dimensional coordinate calculation circuit
8 Parallax calculation circuit
9 Numerical operation circuit

Claims (5)

An input means for drawing the first image while changing the writing pressure at an arbitrary position on the display screen;
Detecting means for detecting a two-dimensional coordinate value and a writing pressure value in the first image;
Parallax calculating means for calculating parallax based on the two-dimensional coordinate value and the writing pressure value;
A three-dimensional image creating apparatus comprising: display means for displaying a second image having a parallax with respect to the first image at a position suitable for stereoscopic viewing. The three-dimensional image creating apparatus according to claim 1, wherein the parallax calculating means calculates the parallax by adding or subtracting a value proportional to the writing pressure value to an X coordinate value in the two-dimensional coordinate value. . The three-dimensional coordinate according to claim 1, wherein the parallax calculation means calculates a three-dimensional coordinate value based on the two-dimensional coordinate value and the writing pressure value, and calculates a parallax corresponding to the three-dimensional coordinate value. Image creation device. The parallax calculating means calculates the parallax in real time when the first image is drawn, and the display means displays the second image in real time. 3D image creation device. 5. The three-dimensional image creating apparatus according to claim 1, further comprising flattening means for flattening a change of the writing pressure value with time.

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