CN100452085C - Automatic recording method for recognising chess manual by image - Google Patents
Automatic recording method for recognising chess manual by image Download PDFInfo
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- CN100452085C CN100452085C CNB2006101616834A CN200610161683A CN100452085C CN 100452085 C CN100452085 C CN 100452085C CN B2006101616834 A CNB2006101616834 A CN B2006101616834A CN 200610161683 A CN200610161683 A CN 200610161683A CN 100452085 C CN100452085 C CN 100452085C
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Abstract
A method for identifying and recording chess manual automatically includes erecting image collection unit, fine-regulating said unit to be at optimum effect on image according to displayed image, calibrating distortion parameter of stored image, regulating brightness of calibrated image, identifying and recording chess manual by computer through identifying command issued by different player with means of pressing down timing clock.
Description
One, technical field
The present invention relates to a kind of image-recognizing method, especially a kind of automatic recording method for recognising chess manual by image.
Two, background technology
In the relatively large various board games of regular ratio, as: go.One innings of chess match is equipped with a plurality of staff such as judge, chess manual registrar and timekeeper usually, with record and the timing of finishing match.Record to chess manual can be described as a loaded down with trivial details job, and the time of playing chess usually wants several by tens hours, and the registrar will stare at chessboard all the time, and the step of playing chess noting with paper and pen step by step.This has just brought many inconvenience: too fast if the player begins, the registrar can be timely record, will cause omitting, as can not in time correcting, later process can't record; This manual record is to draw chess piece to and fro with the pen of different colours on a piece of paper, exists the coordinate of chess piece and the unclear situation of expression of color, not only influence the registrar and judge, and to the player in the future technical Analysis also cause difficulty; Beginning might repeatedly appear in the same position on the chessboard, grape, the situation of beginning again, just is difficult to like this reflect on the chess manual recording chart, chess manual can occur and express unclear situation; If match request is relayed in real time, this manually-operated mode will be pretty troublesome, needs the related work personnel constantly to hurry back and forth back and forth at the scene and between the relay chamber, not only can influence live real-time, and more can influence player's normal performance; If there is not the staff to help record, chess game finishes the back and by the person's of playing a game memory chess manual is carried out record, because the time is long, step number is many, is easy to take place deviation, owing to the inaccurate of process record causes that the matter in dispute to result of the match also happens occasionally.
Existing similar products like mainly is based on the method for Photoelectric Detection, punches on the grid of chessboard exactly, places optical detection device then inside, whether intercepts light by chess piece and judges whether have chess piece to drop on the respective coordinates point.But this device will be paid very big cost, because general big event specifies the chessboard of usefulness to involve great expense, strict to the chessboard quality, Da Kong words will be destroyed chessboard in the above, cause waste; And the chessboard through changing like this destroys original chessboard tag line, is easy to make player's generation illusion; Such system generally wants more than 300 photoelectric tube, and the complicated peripheral circuit of configuration, so overall cost is just very high; In addition, can't judge black mole or white chessman, also will discern by assistant software with photoelectric detection method, and the error rate height.
Three, summary of the invention
1, goal of the invention: fundamental purpose of the present invention be at occur in the present various board games can not be promptly and accurately record and relay this problem of heat, a kind of automatic recording method for recognising chess manual by image is provided, this method can be effectively, in time, exactly the variation of chess game is each time during the games discerned automatically and is noted, be reflected on the display screen simultaneously, overcome the deficiency of original recording method, improved the record efficiency of board game overall process greatly.
2, technical scheme: for realizing purpose of the present invention, a kind of automatic recording method for recognising chess manual by image of the present invention may further comprise the steps: (1) is rack-mount with image capture device, the center of its alignment lens chessboard, and making image capture device vertical with chessboard by rack-mount level meter, image capture device is connected with computer interface by cable; (2) on graphoscope, demonstrate chessboard putting position image, end when finely tuning to image effect the best to image capture device, take and preserve the image of chessboard putting position according to the image that shows; (3) distortion parameter of the image preserved is corrected, preserved the parameter of correcting distortion and through the image of overcorrection; (4) brightness of the image after correcting is adjusted, identified each bar mesh lines on the chessboard, adjust the grid array parameter of back preservation that finish through adjusting so that calculate function; (5) computing machine is pressed the instruction that timing clock sends by discerning different players, carries out identification and record to chess manual;
Wherein step (5) may further comprise the steps: step (50) is initial, and parameter, grid array parameter are corrected in the distortion that is written into preservation, and whether the check image collecting device can operate as normal, then provides prompting as cisco unity malfunction; Step (51) is imported chess game and match for information about on request on computers; Step (52) is clicked " starting the clock " button on computers, sets timer, and timer is picked up counting according to the information of input; Step (53) computing machine has judged whether that the player presses the timing clock button, if the player presses the button of oneself, to step (54); Otherwise continue to clock; Step (54) computing machine begins to deduct another one player's time, and the chessboard of this moment is carried out once photo taking and image is written into internal memory; Step (55) computing machine utilization is written into the distortion rectification parameter of preservation the image that is written into internal memory is carried out the distortion rectification; Step (56) computing machine carries out analyzing and processing to the image after correcting, and judges the color of chess piece; After step (57) computing machine is judged the color of chess piece, this situation of beginning is compared with the situation of beginning last time, thereby the chess piece that explanation makes new advances and shows the chess piece color that makes new advances and on display screen, and, be back to step (53) the coordinate of chess piece and color preservation.
3, beneficial effect: a kind of automatic recording method for recognising chess manual by image provided by the present invention the situation that has little time to write down will not occur by the effective of software and hardware automatically carried out at length record in time to the overall process of playing chess in conjunction with utilizing; Simultaneously this method uses image capture device that chessboard is taken, and can not destroy chessboard, or else needs intense light source and hundreds of photocell detection such as similar spotlight and locates to enclose circuit, greatly reduces cost.Also no longer need to be equipped with chess manual registrar and timekeeper, reduced staff and workload, guaranteed players' match of under comfortable environment, playing chess, can not produce the interference that psychology and body are managed the player.
Below in conjunction with accompanying drawing most preferred embodiment is described in detail.
Four, description of drawings
Fig. 1 is the supporting structure synoptic diagram that image capture device is installed
Fig. 2 is the timing clock circuit theory diagrams
Fig. 3 is for showing and adjust the process flow diagram of chessboard putting position image
Fig. 4 corrects for image fault and regulates process flow diagram
Fig. 5 regulates process flow diagram for brightness of image
Fig. 6 is the process flow diagram of computing machine to chess manual identification and record
Fig. 7 is a timer timing process flow diagram
Fig. 8 .1 is the image graph before correcting
Fig. 8 .2 is the image after correcting
The image that Fig. 9 photographs for image capture device.
Figure 10 is for being shown to user's chessboard after the system identification.
Five, embodiment
As shown in Figure 1, the 1st, image capture device, the 2nd, level meter; Chessboard is placed on external stent next door, and makes the center of image capture device camera lens perpendicular alignmnet chessboard, by level meter, vertical with chessboard with the calibration image collecting device.Image capture device is connected to computer interface by cable, after the correct connection hardware of user, and the driving that image capture device is installed on computers.After system's operation, image capture device is transferred to computing machine with signal through connection, is converted into the discernible data image signal of computing machine.Wherein image capture device can be CCD camera, CMOS camera or digital camera.
As Fig. 2 is timing clock circuit theory diagrams of the present invention.Whether circuit comprises single main circuit, detect the timing button and press, and the single-chip microcomputer plug-in calculates respectively player's time spent according to this, and adds up, and passes to computing machine by serial communication circuit; Power circuit is realized the power supply of timing clock system, and computer clock circuit is for single-chip microcomputer provides clock signal; Serial communication circuit is realized single-chip microcomputer and the automatic swap data of intercomputer.
Fig. 3 describes step 2 in detail, promptly shows and adjust the process flow diagram of chessboard putting position image.Step 20 is initial steps.Step 21 demonstrates the image of chessboard putting position on computer display; Step 22 user finely tunes image capture device according to the orientation that computer display image and chessboard are put, till satisfied to the chessboard putting position image that shows; If regulating image capture device, step 23 user finishes then execution in step 24; Otherwise continue to wait for user's adjusting, go to step 22; Step 24 pair current chessboard is taken an image with its called after picture, and form is .bmp, and finishes this step.
Fig. 4 describes step 3 in detail, because the inborn characteristic of image capture device, the barrel distortion of certain program can appear in its image of shooting, correct so this step is carried out distortion to the customer satisfaction system chessboard putting position image of preserving in the step 2, and preserve the parameter of correcting distortion and through the image of overcorrection.Concrete steps: step 30 is initial, computing machine is automatically with picture picture by name, form is that the file of .bmp is read in the internal memory, adopt polynomial expression address revised law to do the mapping transformation of image, promptly seek 1 A (coordinate (x on the fault image, y)) mapping relations of 1 A ' (coordinate (x ', y ')) on the theoretical image.A is r to the distance of image center O if set up an office; The A ' that then sets up an office is r ' to the distance of image center O.Then r can be expressed as:
In order to improve the degree of accuracy that image is corrected, select for use biquadratic curve function fitting method to represent the relation of r and r ':
r′＝ar
4+br
3+cr
2+dr+e
Collect the data on the image, obtaining above-mentioned five parameter a, b, c, d, the value of e in its substitution related software.Three some O, A, A ' should obtain following formula according to Similar Principle of Triangle point-blank:
Can calculate the coordinate (x ', y ') of an A ' according to above-mentioned formula, promptly proofread and correct the coordinate of back point.Each point on the image is all moved with said method, if produce the shortcoming phenomenon in the new image then replenish with its contiguous point, will be with the image after obtaining correcting.Step 31 computing machine demonstrates the image after the rectification; If step 32 user can come the manual adjustments parameter to continue to adjust image by the operational computations machine to the image after correcting is dissatisfied; Step 33 is adjusted the image after the back computing machine that finishes shows rectification once more; If correcting, step 34 user finishes then execution in step 35; Otherwise continue image is corrected, go to step 32; Step 35 preserve to be corrected the parameter of distortion and through the image of overcorrection and finish this step.
Fig. 5 describes step 4 in detail, promptly the brightness of the image after correcting is adjusted, and identifies each bar mesh lines on the chessboard exactly so that calculate function.Step 40 is initial, and computing machine is loaded into the image through overcorrection in the internal memory, uses the value of an acquiescence that image is carried out binaryzation; Step 41 computing machine shows the image through binaryzation; Because chessboard and mesh lines have only two kinds of colors, so mesh lines will display after the binaryzation.If step 42 user shows through the image of binaryzation is dissatisfied and can further adjust the effect of binary image by the moving parameter that changes of operational computations tractor driver computing machine; Binary image after the step 43 computing machine demonstration adjustment parameter; If adjusting, step 44 user finishes then execution in step 45; Otherwise continue image is adjusted, go to step 42; Step 45 is carried out and to be calculated the trellis algorithm of chessboard automatically and calculate the mesh coordinate of chessboard and preserve and finish this step.
Fig. 6 describes step 5 in detail, and computing machine carries out identification and record to chess manual by discerning the instruction that different players send.Step 50 is initial, and parameter, grid array parameter are corrected in the distortion that is written into preservation, and whether the check image collecting device can operate as normal, then provides prompting as cisco unity malfunction; Step 51 is imported chess game and match for information about on request on computers; Step 52 is clicked " starting the clock " button on computers, sets timer, and timer is picked up counting according to the information of input; Step 53 computing machine has judged whether that the player presses the timing clock button, if the player presses the button of oneself, timing clock can send a character string to computing machine, this moment, the different character strings that the player sent was different, computing machine is which player supresses timing clock by discerning that this character string offers an explanation, to step 54; Otherwise continue to clock; Step 54 computing machine begins to deduct another one player's time, and the chessboard of this moment is carried out once photo taking and image is written into internal memory; Step 55 pair computing machine utilization is written into the distortion rectification parameter of preservation the image that is written into internal memory is carried out the distortion rectification; Step 56 computing machine carries out analyzing and processing to the image after correcting, and judges the color of chess piece; Its concrete grammar is: the formula of establishing colour brightness:
bright＝B*0.299+G*0.587+R*0.114
Wherein bright is brightness value, R, and G, B are respectively the red of picture element, and be green, blue three color components.According to the chessboard mesh coordinate run-down chessboard that reads in the step 50, (x y) then calculates its coordinate (lower-left of four points on every side earlier whenever to read a mesh coordinate, upper left, the bottom right, upper right), a bright ' variable is set, and calculates bright ' according to following formula:
bright’＝(B1*0.299+G1*0.587+R1*0.114)-(B*0.299+G*0.587+R*0.114)
B1 wherein, G1, R1 are the color of image in the step 50, B, G, R are the color of image in the step 54.Obtain as drawing a conclusion by analysis: if this point has fallen white chessman, the value of bright ' can be a negative value; If a black mole, then bright ' can be a positive value; If do not begin, bright ' can be that an absolute value is than all little number of top two number absolute values.According to these three threshold values, computing machine just can judging point (x, y) color of last chess piece.For fear of certain interference and the true situation of chess piece poor placement, (x states Rule of judgment if y) have two or more glyphs to close in four coordinates on every side, then decidable point (x, y) situation of beginning on to above-mentioned point.After step 57 computing machine is judged the color of chess piece, this situation of beginning is compared with the situation of beginning last time, thereby the chess piece that explanation makes new advances and shows the chess piece color that makes new advances and on display screen, and, be back to step 53 the coordinate of chess piece and color preservation.
Fig. 7 has described step 52, i.e. timer timing process flow diagram.After picking up counting, can finish until fixture by 521 timers according to the laws of the game official hour timing of setting always; If 522 setting-up times not to or the user do not press " chess game end " button, to step 521; If fixture to or the user press " chess game end " button, to step 523; 523 timers stop timing.
Claims (1)
1, a kind of automatic recording method for recognising chess manual by image is characterized in that this method may further comprise the steps:
(1) image capture device is rack-mount, the center of its alignment lens chessboard, and make image capture device vertical with chessboard by rack-mount level meter, image capture device is connected with computer interface by cable;
(2) on graphoscope, demonstrate chessboard putting position image, end when finely tuning to image effect the best to image capture device, take and preserve the image of chessboard putting position according to the image that shows;
(3) the image fault parameter that step (2) is preserved is corrected, and preserves parameter that distortion corrects and through the image of overcorrection;
(4) brightness of the image after correcting is adjusted, identified each bar mesh lines on the chessboard, adjust the grid array parameter of back preservation that finish through adjusting so that calculate function;
(5) computing machine is pressed the instruction that timing clock sends by discerning different players, carries out identification and record to chess manual;
Wherein step (5) may further comprise the steps:
(50) initial, parameter, grid array parameter are corrected in the distortion that is written into preservation, and whether the check image collecting device can operate as normal, then provides prompting as cisco unity malfunction;
(51) import chess game and match on computers for information about on request;
(52) click " starting the clock " button on computers, set timer, timer is picked up counting according to the information of input;
(53) computing machine has judged whether that the player presses the timing clock button, if the player presses the button of oneself, to step (54); Otherwise continue to clock;
(54) computing machine begins to deduct another one player's time, and the chessboard of this moment is carried out once photo taking and image is written into internal memory;
(55) the computing machine utilization distortion that is written into preservation is corrected parameter and the image that is written into internal memory is carried out distortion is corrected;
(56) computing machine carries out analyzing and processing to the image after correcting, and judges the color of chess piece on the whole chessboard;
(57) after computing machine is judged the color of chess piece, this situation of beginning is compared with the situation of beginning last time, thereby the chess piece that explanation makes new advances and, on corresponding coordinate on the display screen, show chess piece color that makes new advances and the serial number of beginning, and, be back to step (53) the coordinate of chess piece and color preservation.
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| CN105205447B (en) * | 2015-08-22 | 2018-08-17 | 周立人 | Go recognition methods based on go image and chessboard |
| CN107730522A (en) * | 2017-10-12 | 2018-02-23 | 中科视拓（北京）科技有限公司 | A kind of weiqi chess manual recognition methods based on image |
| CN107875625A (en) * | 2017-11-23 | 2018-04-06 | 东华大学 | A kind of voice-based Chinese chess is played chess device |
| CN108491804B (en) * | 2018-03-27 | 2019-12-27 | 腾讯科技（深圳）有限公司 | Chess game display method, related device and system |
| CN109145809B (en) * | 2018-08-17 | 2022-03-08 | 腾讯科技（深圳）有限公司 | Notation processing method and device and computer readable storage medium |
| CN112948619B (en) * | 2021-03-01 | 2023-04-28 | 北京航空航天大学杭州创新研究院 | Deep learning-based auxiliary input method and device for handwritten chess manual |
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