CN1146814C - Method and device for automatically detecting position of transparent draft - Google Patents

Abstract

A method of automatically detecting a position of a transparency, comprising: firstly, completing one-time pre-scanning of a scanning auxiliary frame with a transparent manuscript thereon; (b) detecting whether a file exists in each transparent draft positioning frame; (c) if no file exists, ending the scanning; if the transparent draft positioning frame has files, setting a scanning area and carrying out main scanning; (d) then, framing a transparent draft positioning frame with the existing file, adding the framed part into each scanning work row, and listing the corresponding computer image file data; (e) then, whether the scanning is finished is detected; (f) if not, returning to the step (d); if the scanning is finished, the scanning operation is finished. And an apparatus for use in the method.

Description

Method and device capable of automatically detecting the position of transparent manuscripts

The present invention relates to a method and device for automatically detecting the position of a transparent manuscript with the effect of automatically dividing the scanned image of the entire page into different computer image files (Image files), so that it can be positioned according to the image frame instead of transparent The positioning hole positioning of the manuscript positioning frame; it can automatically detect whether there is a transparent manuscript in the transparent manuscript positioning frame, and can avoid unnecessary scanning and image file storage; it can automatically divide multiple transparent manuscripts into multiple images after one scan Image files without multiple scans and additional manual operations.

According to the known method of scanning a transparent manuscript embedded with a positive or negative transparency 1 on an optical scanner, please refer to Figure 1, as shown in Figure 1, generally a single or multiple transparent manuscripts 2 are used to insert the scanning aid The transparent manuscript positioning frame 4 in the frame 3, after the prescanning (Prescan) action, scans the whole page of the first draft, and then manually circles the position of the transparent manuscript on the computer screen with a mouse or other tools, so , not only time-consuming, but also the accuracy of punctuating patterns by manual operation is poor. Furthermore, if there are multiple transparent manuscripts, they must be circled by tools such as a mouse in order to divide all the transparent manuscripts into computer image files (Image file) data, the process is very troublesome.

Or there is a kind of mode of scanning transparent manuscript, please refer to Fig. 2, as shown in Fig. 2, it is to be provided with a plurality of positioning holes 5 to locate before the image scanning of transparent manuscript positioning frame 4 and its end position, make its image After pre-scanning (Prescan), it can automatically position and scan, and on the positioning frame of the multi-piece positioning manuscript, multiple slices can be scanned at one time and divided into multiple image files (Image file), therefore, it can scan multiple pieces at one time. a transparent draft;

However, in the multi-piece transparent manuscript positioning frame, if the transparent manuscript is not full, the positioning frame that is not filled with transparent manuscripts will also be scanned with unnecessary images, because the transparent manuscript positioning frame only has the function of positioning and cannot It cannot be detected whether there is a transparent manuscript on it.

In contrast, there are not many patents related to transparent manuscript scanning in Taiwan Province, mainly for the improvement of scanner hardware and structure, such as the approved patents No. 290211, 260417 and 218656, etc., but these patents Not directly related to the present invention.

In view of this, the object of the present invention is to provide a method and device for automatically detecting the position of the transparent manuscript in order to improve the above-mentioned defects, which is based on the image frame, rather than the positioning hole of the transparent manuscript positioning frame. To locate, so the error can be reduced.

Another object of the present invention is to provide a method and device for automatically detecting the position of a transparent manuscript, which can automatically detect whether there is a transparent manuscript in the positioning frame of the transparent manuscript, so that unnecessary scanning and storage of image files can be avoided.

Another object of the present invention is to provide a method and device for automatically detecting the position of a transparent manuscript, which can automatically divide multiple transparent manuscripts into image files (Imagefile) of multiple images after one scan, without the need for multiple scans and additional manual operations.

The invention provides a method for automatically detecting the position of a transparent manuscript. The method is used in a device that can automatically detect the position of a transparent manuscript. A long slot is respectively provided in the side frame of the scanning auxiliary frame of the device adjacent to the positioning frame of the transparent manuscript. hole, the lower edge of the slotted hole is respectively provided with at least one termination mark, and the method comprises the following steps:

(a) First, complete a pre-scan (prescan) on the scanning auxiliary frame with the transparent manuscript;

(b) Detect whether there are files in each transparent manuscript positioning frame;

(c) If there is no file, end the scan; if there is a file in the transparent manuscript positioning frame, set the scanning area and perform the main scan (mail scan);

(d) Then, select the transparent draft positioning frame that has file to exist, and add the part that frame gets to every time (each time) scanning work column, list corresponding computer image file data;

(e) After that, detect whether the scanning is complete;

(f) If it is not finished, then return to step (d); if the scanning is finished, then end the scanning work.

The invention provides a method for automatically detecting the position of a transparent manuscript. The method is used in a device that can automatically detect the position of a transparent manuscript. A long slot is respectively provided in the side frame of the scanning auxiliary frame of the device adjacent to the positioning frame of the transparent manuscript. hole, the lower edge of the slotted hole is respectively provided with at least one termination mark, the method comprises the following steps:

(a) First, the scanning light trace starts to scan column by column from the starting point;

(b) When the scanning light trace signal scans to the starting point of the long slot hole, make the variable equal to the ordinate of the starting point;

(c) scan to the next column;

(d) Detect whether the scanning light trace signal has reached the end point;

(e) If the end point is detected, the detection work is ended; if the end point is not reached, then continue to detect whether there is a scanning light trace signal in the long slot in the horizontal axis direction;

(f) If there is a signal, it means that there is no transparent manuscript in the transparent manuscript positioning frame above it. At this time, continue to scan the next row; if there is no signal, it means that there is a transparent manuscript in the transparent manuscript positioning frame above it. At this time, scan the above Images of transparent sheets with transparent manuscripts, framed and stored image files respectively;

(g) Make the variable equal to the end point coordinates of the scanned transparent manuscript;

(h) Then, return to step (c). In this way, pre-scanning is not required, and the detection of automatic separation of transparent manuscripts and automatic stop can be directly performed during scanning.

The invention provides a device that can automatically detect the position of a transparent manuscript, which includes a scanning auxiliary frame, a transparent manuscript positioning frame and at least one transparent manuscript, wherein a matrix-arranged transparent manuscript positioning frame is arranged on the scanning auxiliary frame, and each row The transparent manuscript positioning frame contains one or more transparent manuscript positioning frames, and the said device includes:

In the side frame adjacent to the positioning frame of the transparent manuscript of the scanning auxiliary frame, a long slot hole is respectively provided, and at least one stop mark is respectively provided on the lower edge of the long slot hole, so that when the signal of the scanning light trace reaches the stop mark, it means that the Signal to the end.

The method and device provided by the present invention are reasonable in design and effectively improve the above-mentioned defects in the prior art. The present invention can automatically locate and detect the position of the transparent manuscript, and automatically divide the image of each transparent manuscript into multiple data images The file is an improved scanning auxiliary frame structure, which is used to cooperate with the method of automatically detecting whether the transparent manuscript exists in the improved structure. The invention can increase the scanning and storage efficiency of the transparent manuscript.

The purpose, features and advantages of the present invention will be described in detail with reference to the accompanying drawings in conjunction with the embodiments.

Brief description of the drawings:

Fig. 1 is the scanning auxiliary frame used for conventionally scanning transparent manuscripts (taking four transparent manuscript positioning frames as an example);

Fig. 2 is another type of transparent manuscript positioning frame;

Fig. 3 is an improved scanning auxiliary frame used in the embodiment of the present invention (taking four transparent manuscript positioning frames as an example);

Fig. 4 is the coordinates of the improved scanning auxiliary frame used by a method of the embodiment of the present invention (taking four transparent manuscript positioning frames as an example);

Fig. 5 is a flow chart of automatic detection and selection of scanning areas used in a method according to an embodiment of the present invention;

Fig. 6 is the improved description auxiliary frame and its coordinates used in the second method of the embodiment of the present invention (taking four positioning frames as an example);

Fig. 7 is a flow chart of automatic separation of transparent manuscripts and automatic stop used in the second method of the embodiment of the present invention.

Please refer to Fig. 3, as shown in Fig. 3, the present invention is a method and its device for automatically detecting the position of a transparent manuscript, the device of the present invention includes an improved scanning auxiliary frame 8, a plurality of transparent manuscript positioning frames 11-14 (it is provided with four in the embodiment of the present invention) and at least one transparent manuscript F11, F21, F12 (it is provided with three in the embodiment of the present invention) and other component units; Wherein:

The scanning auxiliary frame 8 is a square plate, on which a transparent manuscript positioning frame arranged in a matrix is provided, and each row of transparent manuscript positioning frames includes one or more transparent manuscript positioning frames. In an embodiment of the present invention, the first A row of transparent manuscript positioning frames includes two transparent manuscript positioning frames 11,13; the second row of transparent manuscript positioning frames includes two transparent manuscript positioning frames 12,14, and one side edge of each transparent manuscript positioning frame 11-14 is respectively provided with Half arc holes 10 are convenient for users to pick up the transparent manuscript on it, and in the side frame adjacent to the transparent manuscript positioning frame 11-14 of the scanning auxiliary frame 8, a long slot hole 9 is respectively provided, by which Whether the long slot 9 is covered by the transparent manuscript, resulting in the presence or absence of the charge-coupled device (CCD) signal, to detect whether there is a transparent manuscript on it, and to locate it for scanning, when the transparent manuscript positioning frame is respectively placed During a transparent manuscript, the slotted hole 9 of the transparent manuscript positioning frame is promptly covered; if no transparent manuscript is inserted in the transparent manuscript positioning frame, the long slotted hole 9 of the transparent manuscript positioning frame will not be covered and be continuous, each length Whether the slotted hole 9 is covered or not can be judged by the automatic detection method whether there is a transparent manuscript to be inserted thereon.

In addition, a stop mark is provided on the lower edge of the slotted hole 9. When the scanning trace signal reaches the stop mark, it means that the end point has been scanned. The stop mark has the following three design methods, namely:

(1) At least one slit 91 is provided on the lower edge side of the slotted hole 9, and when the scanning trace signal reaches the slit 91, it means that the scanning has reached the end point;

(2) Make the lower edge of the slit 91 to the bottom edge of the long slot 9 all opaque, and its length (L1) is greater than the length (L) of the transparent manuscript positioning frame, which means the scanning end point.

(3) At least one slit 91' is provided at the lower edge of the slotted hole 9, and when the scanning trace signal reaches the slit 91', it means that the scanning has reached the end point.

In this way, the position and size of the transparent draft F11 can be calculated based on this point (X1, Y2) and the built-in values, so as to be framed. Wherein X1 is the abscissa of the first long slot, and Y2 is the ordinate of the upper left corner of the transparent manuscript positioning frame 11,12.

Please refer to Figure 4, as shown in Figure 4, wherein Xd, Yd represent the size of each transparent manuscript positioning frame, which is a known built-in value (d=0, 1, 2...), if X1, Y2 are detected If it is detected, it means that there is a transparent manuscript F11 in the transparent manuscript positioning frame 11, that is, the upper left corner of the transparent manuscript F11 is detected, and so on, so that the position and size of the framed transparent manuscript can be deduced.

When scanning the optical trace from the starting point to point Y1, the charge coupled device (CCD) has signals at the positions of X1, Y1 (X2, Y1), indicating that there is no transparent manuscript. Wherein Y1 is the ordinate of the starting point of the upper end of the long slot, and X2 is the abscissa of the second long slot.

When the scanning trace moves to point Y2, the charge-coupled device has no signal at X1 and Y2, indicating that there is a transparent manuscript F11 on it; the charge-coupled device has no signal at the position of X2 and Y2, indicating that there is a transparent manuscript F12 on it superior.

When the scanning trace moves to point Y3, the charge-coupled device has no signal at the positions of X1 (X2) and Y3 (Y3), indicating that there is a transparent manuscript F11 (F12) on it. Wherein Y3 is the vertical coordinate of the lower left corner of the transparent manuscript positioning frame 11,12.

When the scanning trace moves to point Y4, the charge-coupled device has no signal at X1 and Y4, indicating that there is a transparent manuscript F21 on it; the charge-coupled device has signals at the positions of X2 and Y4, indicating that there is no transparent manuscript, and so on By analogy, it can be known whether there is a transparent manuscript on it in the transparent manuscript positioning frame, and unnecessary scanning can be avoided. Wherein Y4 is the ordinate of the upper left corner of the transparent manuscript positioning frame 13,14.

In this way, the positions and sizes of transparent drafts F11, F12, and F21 can be calculated based on the points (X1, Y2), (X2, Y2), (X1, Y4), (X2, Y4) and the built-in values, so that frame to avoid unnecessary scanning.

Among Fig. 4, Y5 is the ordinate of the lower left corner of the transparent manuscript positioning frame 13,14, Y6 is the ordinate of the lower edge of the slit, and Y7 is the ordinate of the bottom end of the slotted hole.

The present invention can be implemented with prescan (prescan) and without prescan respectively, hereby respectively explain as follows:

Embodiment one:

Please refer to FIG. 5 , as shown in FIG. 5 , which is a flow chart of automatically detecting and selecting a scanning area after the scanning auxiliary frame of the present invention is prescanned.

Firstly, complete a prescan (Prescan) 51 on the scanning auxiliary frame with the transparent manuscript on it, and at the same time detect whether there is a file in each transparent manuscript positioning frame? 52;

If there is no file, then end this scan 53; if there is a file in the transparent manuscript positioning frame, then set the scanning area 531, and perform the main scan (Main Scan) 54; then, frame the transparent manuscript that has the file. Locate frame 55, and the part that frame gets is added every time (each time) scans work column, enters corresponding computer image file (Image file) data 56, afterward, detects whether to scan again? 57.

If it is not finished, then go back to step 55; if the scanning is finished, then end the scanning work.

In this way, through the above-mentioned method and the structure of the scanning auxiliary frame 8, it can automatically detect whether there is a transparent manuscript in the transparent manuscript positioning frame, and can automatically divide multiple transparent manuscripts into image files of multiple images after one scan .

Embodiment two:

Please refer to Fig. 6 and Fig. 7, as shown in Fig. 6 and Fig. 7, L in Fig. 6 represents the length of the positioning frame of the transparent manuscript on the ordinate, and Fig. 7 shows that the scanning auxiliary frame 8 of the present invention does not need to be scanned in advance (Prescan) , and when scanning (Scan), the flow chart of automatic separation of transparent manuscripts and automatic stop can be made directly (wherein y1 represents the starting position of the scanning trace in the long slot; Y represents the coordinate of the current scanning trace signal in the y direction position; Ys indicates the coordinate position of the last signal in the y direction; Ye indicates the coordinate position of the end point of the transparent manuscript in the y direction).

First, when scanning the optical trace from the starting point to point y1, the charge-coupled device (CCD) has signals at the positions of X1 and X2. At this time, the variable Ys is equal to the ordinate of the starting point, that is, Ys=y1; 61, and then , continue scanning 62 to the next row, and detect whether the scanning light trace signal has reached the end point? 63, the manner in which it is detected to the end point, as previously described.

If the end point is detected, the detection operation 631 is ended; if the end point is not reached, then continue to detect whether there is a scanning light trace signal in the long slot 9 in the X-axis direction? 64.

If there is a signal, it means that there is no transparent manuscript in the transparent manuscript positioning frame on it. At this time, continue to scan 62 to the next row; if there is no signal, it means that there is a transparent manuscript in the transparent manuscript positioning frame on it. The image of the transparent sheet of the manuscript, and frame and get and store the image file (Image file) 65 respectively, then, make the variable equal to the end point coordinates of the scanned transparent manuscript, that is, Y=Ye; 66, after that, return to step 62 , make the next scanning row, and check whether the scanning light trace signal has reached the end point? 63. If the end point has been reached, the detection work 631 is ended.

In this way, the detection of automatic separation of transparent manuscripts and automatic stop can be performed directly during scanning (Scan) without prescanning.

According to the above two embodiments, it is only the best specific embodiment of the present invention, but the present invention is not limited thereto. Any person familiar with the art can easily think of changes or modifications in the field of the present invention. All should be covered within the scope of the claims of the present invention.

Claims (9)

1. but the method for an automatic detecting location of transparent draft, but this method is used for the device of automatic detecting location of transparent draft, in contiguous transparent original text posting one side frame of the Scan auxiliary frame of this device, be respectively equipped with a long slot bore, the lower edge of long slot bore is respectively equipped with at least one end mark, this method is at first finished the Scan auxiliary frame that has transparent original text on it once scanning in advance, it is characterized in that this method also comprises following steps:

(a) be detected on whether the file existence is arranged in each transparent original text posting;

(b) if there is not file to exist, then finish this time scanning; If in transparent original text posting, have file to exist, set scanning area, and carry out main sweep;

(c) then, frame is got the transparent original text posting that file exists, and the part that frame is got is added each scanning work row, lists corresponding computer image documentation in;

(d) afterwards, whether survey been scanned again;

(e), then be back to step (d) if do not finish; If been scanned then finishes this time scanning work.

2. but the method for an automatic detecting location of transparent draft, but this method is used for the device of automatic detecting location of transparent draft, in contiguous transparent original text posting one side frame of the Scan auxiliary frame of this device, be respectively equipped with a long slot bore, the lower edge of long slot bore is respectively equipped with at least one end mark, this method at first scan optical track from starting point one be listed as begin scanning, it is characterized in that this method is further comprising the steps of:

When (a) scanning optical track signal is scanned up to the starting point of long slot bore, make parameter equal the ordinate of this starting point;

(b) toward next column scan;

(c) whether to terminal to detect scanning optical track signal;

(d) if detect to terminal, then finish detection operations; If then continue not to terminal, to be detected on the long slot bore of X direction whether scanning optical track signal is not arranged;

(e) if signal is arranged, represent that the transparent original text posting on it does not have transparent original text, at this moment, continue toward next column scan; If there is not signal, represent that the transparent original text posting on it has transparent original text, at this moment, scan the image of the slide that transparent original text is arranged on it, and respectively frame get, memory image file;

(f) make the terminal point coordinate of the transparent original text that parameter equals to have scanned;

(g) then, be back to step (c) again, so, can not must through scanning in advance, and when scanning, can directly do to separate automatically transparent original text and self-braking detection.

3. but the method for automatic detecting location of transparent draft as claimed in claim 2, wherein, detect scanning optical track signal whether to terminal step be at least one end mark of utilizing the lower edge of long slot bore to be provided with, when making scanning optical track scanning signal, promptly represent the terminal point of signal to this end mark.

4. but the method for automatic detecting location of transparent draft as claimed in claim 3, wherein, detect whether to terminal the step at least one end mark that also can utilize the lower edge side of long slot bore to be provided with of scanning optical track signal, when making scanning optical track scanning signal, promptly represent the terminal point of signal to this end mark.

5. but as the method for claim 3 or the 4th described automatic detecting location of transparent draft, wherein, detect scanning optical track signal whether to terminal mode be to use the light tight district of the lower edge of end mark to the root edge of long slot bore, when the length that is detected during, be terminal point greater than the length of transparent original text posting.

6. but the device of an automatic detecting location of transparent draft, contain one scan auxiliary frame, transparent original text posting and at least one transparent original text, wherein on Scan auxiliary frame, there is not a transparent original text posting that is arranged, each is arranged transparent original text posting and contains one or more transparent original text posting, it is characterized in that this said device comprises:

In contiguous transparent original text posting one side frame of Scan auxiliary frame, be respectively equipped with a long slot bore, the lower edge of long slot bore is respectively equipped with at least one end mark, and the signal that makes the scanning optical track is promptly represented this signal to terminal during to this end mark.

7. but the device of automatic detecting location of transparent draft as claimed in claim 6, wherein, the lower edge of end mark is to the neither printing opacity of the root edge of long slot bore, when its length during greater than the length of transparent original text posting, promptly represents signal to terminal.

8. but the device of automatic detecting location of transparent draft as claimed in claim 6 wherein, is provided with half circular hole outwardly at a lateral margin of each transparent original text posting, picks up thereon transparent original text in order to the user.

9. but the device of automatic detecting location of transparent draft as claimed in claim 6, wherein, the size of transparent original text posting, be to be known built-in value, if this transparent original text posting is detected, promptly being shown in the transparent original text posting has transparent original text, that is the upper left corner of transparent original text is detected, so, can know position and the size thereof that frame is got transparent original text by inference.

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