JPH0769569B2 - Automatic search method - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an automatic search method in a microfish search device.

(Technical background of the invention and its problems) When automatically searching for a frame photographed by a microfiche using a microfish search device, the keyboard of this search device is operated to determine the address of the target frame (reference frame Enter the number of each row and column from
The retrieval device conveys the microfiche, automatically retrieves the frame at the position corresponding to this frame address, and projects the frame for this purpose on the reader screen.

FIG. 8 schematically shows an example of a frame arrangement in a conventionally used microfiche. This microfiche has a "reference frame" P _O (its address (0, 0)) to the "span coma" P _S (its address (m, n)), which is the maximum address at the bottom of the right end, in the horizontal direction (X of the search device) in the figure.
It is assumed that (m + 1) frames are photographed in the axial direction and (n + 1) frames are photographed in the illustrated vertical (column) direction (Y-axis direction of the search device). Here, the shooting pitch of each frame is known because it is set at the time of shooting, and its value is A _{x in the} X-axis direction,
_Ay is set in the Y-axis direction, and this value is preliminarily input to the search device by an operator's manual operation.

Therefore, conventionally, when the reference frame P _O, which is the reference point for setting the frame position, is first set at the projection position of the search device,
The search device measures the distance from the origin (not shown) on the machine in this search device by the amount of movement (for example, the number of pulses) when transporting the microfiche, and determines the position of the reference frame P _O on the X-axis and the Y-axis. Coordinate values (X _o , Y _o ) are detected by measuring along the axis. Then, when the frame to be searched, for example, the frame address (i, j) of "Σ" shown in FIG. 8 is input, the coordinate value (X _i , Y _j ) of this frame Σ is changed to the coordinate value of the reference frame P _O ( X _o ,
Y _o ) and the reference pitches A _x and A _y can be used to obtain and set the position from the following equation (1).

However, the microfiche to which such a position setting method can be applied is limited to those in which the respective frames are arranged in parallel with the X-Y moving direction of the search device, but in reality, the film set position shift at the time of shooting. Due to the above, the arrangement of the frames is not necessarily parallel to the movement axis of the search device, and even if the position setting as described above is performed, the target frame cannot be accurately positioned on the reader screen. There was a problem that the position had to be manually reset each time.

Therefore, a frame position setting method that solves such a problem is disclosed in US Pat. No. 4,287,564.
In this frame position setting method, as shown in FIG. 9 corresponding to FIG. 8, the array of frames is tilted with respect to the XY movement axis of the search device, and the number of frames ((m + 1) × ( n + 1))
Is known. Therefore, first, as described above, the position of the reference frame P _O is measured as the coordinate value (X _o , Y _o ), and the maximum address frame P _{M of the} same row as this reference frame P _O (the address (m, 0 )) Is measured as coordinate values (X _m , Y _o ′), and the movement amount L _{x in} the X-axis direction and the deviation amount Δ _y in the Y-axis direction due to the inclination during that time are calculated from the coordinate values (2) below. ) Equation.

Then, using the movement amount L _x , the shift amount Δ _{y in the} Y-axis direction, and the number of frames m therebetween, the reference pitch A _x ′ and the reference correction amount δ _y per frame are calculated by the following formula (3). Ask.

Similarly, the maximum address frame P _{N in the} same column as the reference frame P _O
The position of (the address (0, n)) is the coordinate value (X _o ′, Y _n ).
And the shift amount Y _{y in} the Y-axis direction and the shift amount Δ _x in the X-axis direction due to the inclination during that period are calculated from the coordinate values by the following equation (4).

Then, the reference pitch A _y ′ and the reference correction amount δ _x per frame are obtained from the following equation (5) using the movement amount L _y , the shift amount Δ _{x in the} X-axis direction and the number of frames n therebetween.

Here, the reference correction amount δ _x in the X-axis direction is the shift amount between the frames in the same row (the head row in this example), and the reference correction amount δ _y in the Y-axis direction is the same column (the head row in this example). This is the amount of displacement between each frame in the column). Therefore, the reference correction amount δ _y in the Y-axis direction is accumulated by the row address, and the reference correction amount δ _{x in the} X-axis direction is accumulated.
Will be accumulated according to the column address and will increase respectively.

Then, when the frame to be searched, for example, the frame address (i, j) of “Σ” shown in FIG. 9 is input, the coordinate value (X _i , Y _j ) of this frame Σ is changed to the coordinate value of the reference frame P _O ( X _o , Y _o ) and the reference pitch A _x ′, A _y ′ obtained from the above equations (3) and (5)
And the reference correction amounts δ _x and δ _y , it can be obtained from the following equation (6).

Here, in this frame position setting method, the maximum inter-frame lengths L _x and L _y of the microfish row and column are measured as described above, and the maximum inter-frame lengths L _x and L _y are respectively the number of frames between them. Dividing by m, n, reference pitch A _x ′, A _y ′
Is _calculated , the reference correction amounts δ _x and δ _y are calculated from the deviation amounts Δ _x and Δ _y due to the tilt, and the reference pitches A _x ′ and A _y ′ are corrected, so that the frame image is tilted. Even with a microfiche, the inclination can be corrected to accurately set the position of the target frame.

However, in such a frame position setting method, the reference frame P _O and the maximum address frames P _M and P _{N of} the row and column must be photographed without fail, and that frame must be recorded as described above. As described above, a clear frame image must be captured to be the reference position. However, depending on the microfiche, for example, only character information serving as an index is photographed in the reference frame P _O , and nothing is photographed in the maximum address frames P _M , P _N of the row and column for editing. However, there is a problem in that the above-described frame position setting method cannot be applied to such a microfiche.

Further, conventionally, when searching for setting the position of a microfiche piece, the data for position setting as described above is obtained for each piece, and the fish mode data for each piece corresponding to the microfish to be used is manually set. Since I had to type in, I couldn't do the correct search at high speed and automatically.

(Object of the Invention) The present invention has been made under the circumstances described above.
It is an object of the present invention to provide an actual frame image even in a microfiche in which the array of frames is displaced with respect to the moving direction of the search device, even if the reference frame and the maximum address frame of the row and column are not photographed. Position data that allows you to search for frames corresponding to other frame addresses simply by setting multiple frames that have been shot.
To provide an automatic search method in which the fish mode data necessary for searching and outputting image frames are registered in advance, and the registered data is read at the time of search to automatically and quickly perform position setting and automatic search. It is in.

(Means for Solving Problems) The present invention relates to a method for automatically searching for a microfish at a search position, in which arbitrary plural frames each having a different address captured in the microfish are set,
Position setting data capable of setting the position of an arbitrary frame from each address of the plurality of frames and each coordinate value on the search device of the plurality of frames is obtained for all of the microfiche held and is registered in advance in the storage means. At the same time, pre-register the fish mode data required for output,
This is achieved by reading the registration data when the microfiche with the frame arrangement deviated, automatically correcting the position of the search frame and setting it to an accurate position for automatic search.

(Advantageous Effects of the Invention) The present invention enables a search device to automatically search and perform copying, transmission, etc., using position setting data for position setting and fish mode data for outputting image information that are registered in advance. It was done.

(Embodiment of the Invention) FIG. 1 shows an example of the structure of a microfilm retrieval apparatus to which the method of the present invention is applied. The selected microfiche 1 is placed on a retrieval table 2 and a lens system 4 is provided by a light source 3. Is irradiated through. The light transmitted through the search frame of the microfiche 1 is input to the mirror 6 via the lens system 5, and the image of the frame is projected on the screen 7 by its reflection, or transmitted to the controller 10 via the copy unit or the transmission unit 20. It The entire search device is controlled by a controller 10 including a CPU, and the controller 10 is connected to an external computer 30. The search table 2 is moved in the X and Y directions by the pulse motors M1 and M2 via the driver 11 and adjusted to the normal position.
Cartridge search device 16
Via the fish selection mechanism 17. Also, a keyboard 15 is connected to the controller 10 to input data and perform operation commands, and the CRT 12 displays items necessary for retrieval. Furthermore,
A memory 13 is connected to the controller 10 and
The position setting data for position setting of the frame image according to the present invention and the format No. indicating the format of the microfiche 1, the feed direction of the X-Y axis, that is, the feed indicating whether to search in the X direction or the Y direction. Direction data, lens magnification that specifies the magnification of the image at the time of output such as recording, security data that indicates confidentiality or prohibition of output, rotation correction value that indicates the curl correction value of the image on the screen, fish film 1 The position data of the index frame that recorded the index of the frame, and the fish mode data necessary for outputting the addressing mode,
A storage device 14 for recording and recording in the microfiche 1 or the cartridge is connected.

With such a configuration, when data is registered, as shown in FIG.
Select in order at 17 and set on the search stand 2 (step S2
0), frame images are searched by driving the pulse motors M1 and M2 (step S21). Then, the frame image is projected at a standard position such that the frame image is located at the center of the screen 7 (step S22), and the frame position setting amount at this time is set to the drive amount of the pulse motors M1 and M2 (for example, pulse (Number)) (step S23), and position setting data is registered for each fish (step S24). Further, a format No. indicating the format of the microfiche 1, a feed direction indicating the vertical and horizontal search directions within the microfiche 1, a lens magnification indicating the degree of enlargement / reduction, security for preventing leakage such as confidentiality and output prohibition. Register fish mode data such as data for each frame (step S2
Five). Registration of position setting data and fish mode data is printed with a bar code (or magnetic ink code, OCR character, etc.) 41 on the code plate 42 of the fish jacket 40 that houses the microfish 1, as shown in FIG. In addition, as shown in FIG. 4, a terminal unit 52 is attached to a memory element (EEPROM, EPROM, IC card, etc.) 51 provided in a fish cartridge 50 for accommodating a large number of microfishes.
It may be stored via. Further, the memory 13 may be a non-volatile RAM or a ROM, and may be registered in an external memory such as a floppy disk, a hard disk, a bubble memory or in a search database of the external computer 30. .

In this way, if the position setting data of the frame image and the fish mode data are obtained and registered for each microfiche in advance, if the data corresponding to the frame number is read during the actual search, these data will be stored. The data can be immediately set to the correct position for retrieval, copying, transmission, etc. FIG. 5 shows an example of the operation. By inputting the fish number and the frame address with the keyboard 15 (step S30), the micro fish of the fish number input by the fish selection mechanism 17 is selected from the cartridge and loaded. Then, the search frame is set to the search position by driving the pulse motors M1 and M2 via the driver 11. In this case, the position setting data and fish mode data registered as described above are read to determine various modes and whether position correction is necessary. If necessary, the pulse motor M1, The position is corrected by driving M2 (steps S31, S32, S33) and projected at the correct position (step S34). If necessary, copy unit or transmission unit is used for automatic copying or transmission to other devices. (Steps S35, S36).

Next, how to correct the frame position described above, that is, how to obtain the position setting data will be described.

FIG. 6 is a diagram for explaining an example of the frame position setting method according to the present invention, in which frame images are captured on the frame P _O which is the "reference frame" and the maximum address frames P _M and P _N of the row and column. If the frame position setting method cannot be applied, the microfish search machine is converted to the "frame pitch adjustment mode" and the three frames in which the frame image is actually taken are set. By accurately setting the positions of these three frames, the coordinate value of the reference frame, the reference pitch, and the reference correction amount are obtained, and the arbitrary position setting of the address is realized. Here, these three frames can be set arbitrarily, but in order to accurately set the frames to be searched, as will be described later, these three frames are preferably located at positions as far apart as possible in the XY directions. Then, the first frame “α” that is closest to the reference frame P _O and the frame image is captured, and the first frame “α” that is closest to the row maximum address frame P _M and the frame image is captured. 2 pieces of "β",
It is assumed that the third frame “γ”, which is closest to the maximum address frame P _N of the column and whose frame image is captured, is used.

FIG. 7 is a flowchart showing the operation of the frame position setting method, which will be described below with reference to FIG.

When searching for a frame "Σ" as shown in FIG. 6, first, when the microfish searcher is switched to the "frame pitch adjustment mode" and the frame position setting is started, the first frame α (its address (a _x , a _y )) and the second frame β (its address (b _x , b _y )) are set, and first the first frame α
, And use the “fine adjustment keys” on the keyboard 15 to accurately set the position in the center of the screen 7 and set its coordinate values (X _a ,
Y _a ) is measured and the address (a _x ,
a _y ) is displayed on the CRT 12 (step S1). Therefore, the address (a _x , a _y ) of the projected first frame α is input by operating the keyboard 15, and the “start key” is operated to input the frame address ( a _x ,
a _y ) and coordinate values (X _a , Y _a ) are stored in the memory 13 (step S2). Next, similarly project the second frame β,
Exactly positioning the center of the screen 7 by using a "fine adjustment key" the coordinate values (X _b, Y _b) while measuring, display address of the frame β (b _x, b _y) of the CRT12 (Step S3). Therefore, the address (b _x , b _y ) of the projected second frame β is input by operating the keyboard 15, and the "start key" is operated to input the frame address of the second frame β ( b _x , b _y ) and coordinate values (X _b , Y _b ) in memory
It is stored in 13 (step S4). Next, in the same way,
Project the top frame γ and use the “fine key” to move the screen 7
The position (x _c , y _c ) of the frame is accurately set, and the address (c _x , c _y ) of this frame γ is measured by CRT1.
Displayed in 2 (step S5). Then, the address (c _x , c _y ) of the projected third frame γ is _input to the keyboard 15
And inputs by operating the, by operating the "start key", the third frame address of the frame γ (c _x, c _y) and the coordinate values (X _c, Y _c) is stored in the memory 13 (step S6).

Here, the row and column addresses of the three frames α, β, and γ are different from each other, and the reference pitches A _x ′ and A _y ′ and the reference correction amounts δ _x and δ _y cannot be obtained as they are. Therefore, first, for the second frame β, a frame β'having the same column address as that of the first frame α (its address (b _x , a _y )), and for the third frame γ, the first frame α and the row address Are assumed to be the same frame γ ′ (its address (a _x , c _y )), and their coordinate values are (X _b ′,
Let Y _b ′) and (X _c ′, Y _c ′). Then, each two frames alpha, beta 'between and alpha, gamma' movement amount l _x between ', l _y' and, the Y-axis direction of the deviation amount delta _{y 'and} the X-axis direction of the deviation amount delta _x' ,
The coordinate values are obtained from the following equations (7) and (8) (step S7).

Then, the movement amount l _x ′, the deviation amount Δ _y ′ and the above 2
The reference pitch A _x ′ and the reference correction amount δ _y ′ are calculated by using the number of rows (b _x −a _x ) between the rows α and β ′.
By using l _y ′, the shift amount Δ _x ′, and the number of frames (c _x −a _x ) in the column between the two frames α and γ, the reference pitch A _y ′ and the reference correction amount δ _x ′ are calculated as follows (9 ) And equation (10) (step S8).

Therefore, the coordinate values (X _b , Y _b ) and (X _c , Y _c ) of the second frame β and the third frame γ are the coordinate values (X _a , Y _a ) of the first frame α. Also, using the reference pitches A _x ′, A _y ′ and the reference correction amounts δ _x ′, δ _y ′ obtained from the above equations (7) to (10), the following equation (11) can be used. .

Then, by rearranging equation (11) above, the required reference pitch
A _x ′, A _y ′ and the reference correction amounts δ _x ′, δ _y ′ are given in (12) below.
It is obtained by the formula, and this value is stored in the memory 13 (step S8).

Then, the coordinate value (X _o , Y _o ) of the reference frame P _O is set to the first frame α.
And the reference pitch A _x ′, A _y ′ obtained from the above equation (12)
And the reference correction amounts δ _x ′ and δ _y ′ are calculated from the following equation (13) and stored in the memory 13 (step S9).

Since the reference frame coordinate value, the reference pitch, and the reference correction amount necessary for the frame position setting have been obtained, the frame to be searched, for example, the frame address (i, j) of "Σ" shown in FIG. 6 is input. Then, (step S10), the coordinate value (X _i , Y _j ) of this frame Σ is converted into the coordinate value (X _o , Y _o ) of the reference frame P _O , the reference pitch A _x ′, A _y ′, and the reference correction amount δ. _x ', [delta] _y' using, it can be obtained from the following equation (14) (step S11).

Here, in this frame position setting method, the arbitrary three frames photographed by the microfiche are set and their coordinate values are measured as described above, and the row address of the first frame and the row address of the first frame are set for the second frame. Assuming that the same frame and the third frame have the same column address as the first frame, the inter-frame lengths l _x ′, l _y ′ and the deviation amounts Δ _x ′, Δ _y ′ are measured. inter-frame length l _x ', l _y' and displacement amount Δ _{x ',} Δ _y' a reference pitch a _x was respectively divided by the number of frames between them ', a _y' and the reference correction amount δ _{x ',} δ _y'
Is calculated from the coordinate values of the three frames, the reference pitches A _x ′, A _y ′ and the reference correction amounts δ _x ′, δ _y ′, which are the reference values for searching the frames, have errors in their values. If there is, the error will be accumulated at the time of search, and the target frame cannot be accurately positioned. Therefore, in order to reduce the above-mentioned error, if the three arbitrary frames are set as far apart as possible, the error will be very small without accumulating for each frame. You can set the position of the target frame. Further, even if the size of the microfiche changes or the size of the microfiche varies, the error is extremely small and does not accumulate in each frame, and the target frame can be accurately set in position. . Then, by repeating the above steps S10 to S11, a predetermined frame can be accurately set in position, and this data is used as position setting data for each frame.

When the actual display position on the screen is displaced from the frame image set by the correction method as described above due to a machine difference or the like, fine adjustment is performed with a rotation key (not shown) Should be registered as a rotation correction value. In this case, a 90 ° correction based on the vertical and horizontal recording of the frame image is also included.

By the way, the above-mentioned position setting data and fish mode data can be registered in 32 bytes. The details are as follows: 4 bytes for each 4 digits of X and Y of the reference frame position or software origin position coordinates that make up the position setting data, 6 bytes for each 6 digits of X and Y of the frame pitch data, and 6 bytes of bending correction data.
A total of 16 bytes, 6 bytes for each 6 digits of X and Y. In addition, a format that represents the format of microfiche
16 bytes including 1 byte for No., 1 byte for feed direction, 3 bytes for rotation correction value, 1 byte for lens magnification, 4 bytes for security data and 4 extra bytes.
It is a byte. A cartridge containing 32 sheets requires 1024 bytes, and a cartridge containing 999 cartridges requires 1 MB.

(Effects of the Invention) As described above, according to the automatic search method of the present invention, the micro fish 1 to be searched separately from the format information of each fish mode with respect to the shift of the peculiar frame arrangement of each micro fish. The position setting data of the frame array is registered in the storage means for each sheet, and even in the case of a microfiche with a misaligned frame arrangement, the position setting data and format information of the corresponding microfiche is read from the storage means and automatically searched. Since the target frame can be accurately set, the search, copy, transmission, etc. can be operated automatically at high speed.

[Brief description of drawings]

FIG. 1 is a block configuration diagram showing an example of a microfilm retrieval apparatus to which the method of the present invention is applied, FIG. 2 is a flow chart showing an example of data registration of the present invention, FIG. 3 and FIG.
FIG. 5 is a diagram showing an example of data registration of the present invention, FIG. 5 is a flowchart showing a search example according to the present invention, FIG. 6 is a diagram for explaining a frame position setting method of the present invention, and FIG. FIG. 8 and FIG. 9 are flowcharts showing the operation, and are diagrams for explaining a conventional frame position setting method. P _O ... Reference frame, P _M ... Maximum row address frame, P _N ... Maximum column address frame, A _x ′, A _y ′ ... Reference pitch, L _x ′,
_{L y ', l x',} l y '... inter-frame length, alpha, beta, frame set at gamma ... optionally, sigma ... frame to be searched.

Claims (6)

[Claims] 1. A plurality of arbitrary frames having different addresses which are photographed on a micro fish are set, and an arbitrary frame is positioned from each address of the plurality of frames and each coordinate value on the search device of the plurality of frames. The position setting data that can be set is obtained for all of the micro fishes that are held and registered in advance in the storage means, and the conditions necessary for searching the micro fishes and outputting images (frames) are set for each type of micro fish. The registered fish mode data of the registered data is also registered in advance, and when using the micro-fish whose frame arrangement is deviated, the registered data is read and the position of the search frame is automatically corrected and set to an accurate position for automatic search. Automatic search method characterized by. 2. The automatic search method according to claim 1, wherein the plurality of frames are 2 or 3 frames. 3. The automatic retrieval method according to claim 1, wherein the storage means is a micro fish or a cartridge. 4. The automatic retrieval method according to claim 1, wherein the storage means is a memory element included in the controller or a subordinate memory device. 5. The automatic search method according to claim 1, wherein the storage means is a storage device for external information search. 6. The automatic retrieval method according to claim 1, wherein the registration of the registration data is performed for each sheet of the microfish.