CN100562886C - The design of lattice type pattern and coding/decoding method thereof and device thereof - Google Patents
The design of lattice type pattern and coding/decoding method thereof and device thereof Download PDFInfo
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Abstract
A kind of design of lattice type pattern and coding/decoding method thereof comprise following step: obtain the image with a plurality of lattice type patterns earlier, each lattice type pattern has regularly arranged a plurality of anchor points, lattice point and a plurality of information point; Obtain the position and the feature of these a plurality of anchor points, lattice point and information point by this lattice type pattern; Indicate these a plurality of anchor points and these a plurality of lattice points according to first judgment criterion; Indicate this a plurality of information points according to second judgment criterion; And the respectively meaning of this information point representative of decoding.Compared to prior art, the present invention can overcome the pattern rotation, camera angle is crooked or the incomplete problem of pattern, but have bigger distortion toleance degree, higher identification and decoding capability, simultaneously, at different encoded contents, the lattice type pattern that the present invention carried has the characteristic of gray scale unanimity visually.
Description
Technical field
The invention relates to a kind of method and decoding device thereof of data decode, be meant a plurality of lattice type patterns that a kind of sub-device of powering reads especially, and with design and the coding/decoding method and the decoding device thereof of the different lattice type patterns as the decoding foundation of the lattice point in these a plurality of lattice type patterns and data point arrangement mode.
Background technology
" using the electronic installation of image cursor " that No. 581970 patent of known this country's bulletin proposes, mainly be to constitute image cursor at body surface (as: books), obtain the excessive data that correspondence has a plurality of image cursor by suitable electronic installation from body surface again with small picture point.
As shown in Figure 1, the mode that this image cursor presents, be many similarly be the small picture point combination 900 of background color, and small picture point combination 900 is to be arranged according to certain sequence by many image cursor to form.Because these small picture points can contract very for a short time, therefore naked eyes only can be noticed the wording of " APPLE ", make up 900 and ignored " APPLE " literal beneath small picture point, therefore small picture point combination 900 can not disturbed the reception and registration of main information (" APPLE "), and is additional again or hidden less important information in wherein.
As shown in Figure 2, it is the enlarged drawing of a certain image cursor 91 in the small picture point combination 900 of Fig. 1, this image cursor 91 has 6 * 6 state regions 913, each state region 913 optionally presents stain or keeps blank, represent first state " 1 " or second state " 0 " by this, as shown in Figure 3, promptly represent the bit array 914 that conversion is tried to achieve.Therefore, as long as deposit suitable pointer data at the state region 913 of image cursor 91, just can be to should bit array 914 decodings during application, and then clear its practical meaning is why.
Again as shown in Figure 2, want from many small picture points, to take out or pick out the mode of single image cursor, it is state region 913 in each image cursor 91, it is divided into gauge outfit (header) state region group 911 and 912 two parts of content status zone group, can support resolution as long as allow all image cursor 91 all have identical gauge outfit state region group 911, then each image cursor 91 just can distinguish, and with content status zone group 912 the content record as data.
Yet, with existing image cursor 91 designs, supposing only has incomplete image cursor 91 in the image of obtaining, for example: gauge outfit state region group 911 incomplete situations are arranged, to cause telling complete image cursor 91, also just can't the interpretation correspondence content status zone group 912 content in image cursor 91.In addition, outside gauge outfit state region 911, can not occur having identical content with gauge outfit state region group 911, obscure can't identification or identification mistake to avoid producing with gauge outfit state region group 911 itself, and the encoded content in content status zone 912 also is restricted; Moreover because having or not of the method utilization point shows, the numerical value that data are different has the point of different number, and the gray scale inequality that presents causes visually and discovers easily, and therefore, for different encoded contents, visually gray scale is inconsistent for it.
Summary of the invention
Therefore, purpose of the present invention is promptly providing a kind of design and coding/decoding method and decoding device thereof that is easy to the lattice type pattern identification come out and overcomes the lattice type pattern of aforementioned limitations.
So the design of lattice type pattern of the present invention and coding/decoding method thereof comprise following step: (A) obtain the image with a plurality of lattice type patterns, each lattice type pattern has regularly arranged a plurality of anchor points, lattice point and a plurality of information point; (B) indicate these a plurality of anchor points and these a plurality of lattice points according to first judgment criterion, to set up coordinate plane; (C) in this coordinate plane, indicate these a plurality of information points according to second judgment criterion; And respectively this information point after (D) the decoding sign, with the significant information of output device.
Electronic installation of the present invention has image sensing unit, some detecting unit, codec processing unit and storage unit.This image sensing unit is in order to obtain the image with a plurality of lattice type patterns, and these a plurality of lattice type patterns have a plurality of information points of regularly arranged a plurality of anchor points, lattice point and distribution; This detecting unit is in order to obtain the position and the feature of these a plurality of anchor points, these a plurality of lattice points and these a plurality of information points; This codec processing unit is in order to the position and the characteristic information of these a plurality of anchor points, these a plurality of dot interlaces and these a plurality of information points that receive this detecting unit and obtain, The built-in has in order to determine these a plurality of anchor points and first judgment criterion of locating lattice point, and in order to determining second judgment criterion of these a plurality of information points, and to its output decoder result after the analyzing and processing in addition; This storage unit has the decoding table of comparisons, and this decoding table of comparisons provides the required decoding reference of this codec processing unit.
By this, this codec processing unit is in receiving behind the position and characteristic information of these these a plurality of information points that detecting unit obtained output decoder result after being decoded according to the decoding meaning of the relative position of these a plurality of information points and lattice point in the decoding table of comparisons in this storage unit.
The present invention also provides a kind of design and coding/decoding method thereof of lattice type pattern, be to obtain image also to be decoded with a plurality of lattice type patterns, each lattice type pattern has a plurality of information points of regularly arranged a plurality of anchor points, lattice point and distribution and forms, this method comprises following step: (A) obtain the image with a plurality of lattice type patterns, each lattice type pattern has regularly arranged a plurality of anchor points, lattice point and a plurality of information point; (B) selected respectively this anchor point of foundation first judgment criterion is as starting point, and utilize the vacancy of this starting point and contiguous this starting point respectively to define first direction and be different from the second direction of this first direction, and make two virtual axis along this first, second direction, find out the position at the online lattice point of each imaginary axis, it is defined as the location lattice point; (C) according to second judgment criterion will this a plurality of location lattice point spacing produce a plurality of virtual lattice points to find out with interpolation method near a plurality of information points these a plurality of virtual lattice points; And (D) this information point is respectively decoded according to the relative position of each information point and contiguous virtual lattice point and direction.
Owing to present invention is directed at the design of bit patterns, be that bit patterns is designed to comprise anchor point, lattice point and information point, can overcome in the past gauge outfit state region group 911 itself easily produce obscure can't identification shortcoming, and the point of the present invention in lattice type pattern stated and fixed, and therefore visually more difficultly discovered.
Description of drawings
Fig. 1 is a synoptic diagram, illustrates that prior art constitutes the example of lattice type pattern with small picture point;
Fig. 2 is a synoptic diagram, and a dot matrix type pattern of this example is described;
Fig. 3 is a synoptic diagram, and the decoding process of the lattice type pattern of this example is described;
Fig. 4 is a circuit block diagram, and the preferred embodiment of the electronic installation of the design of using lattice type pattern of the present invention and coding/decoding method thereof is described;
Fig. 5 is a synoptic diagram, and the image with a plurality of lattice type patterns is described;
Fig. 6 is a process flow diagram, and the design of lattice type pattern of the present invention and the preferred embodiment of coding/decoding method thereof are described;
Fig. 7 is a synoptic diagram, illustrates that this preferred embodiment is selected starting point and a direction point in image, and defines first direction and be different from the second direction of this first direction;
Fig. 8 is a synoptic diagram, illustrates that this preferred embodiment is to produce two virtual axis along first, second direction in image, and finds out the position at a plurality of location of each virtual axis lattice point;
Fig. 9 is a synoptic diagram, illustrates that this preferred embodiment is that spacing according to this a plurality of location lattice point produces a plurality of virtual lattice points with interpolation method, and should a plurality of virtual lattice points continuous to produce a plurality of virtual net rulings; And
Figure 10 is a synoptic diagram, illustrates that this preferred embodiment is near find out these a plurality of virtual net rulings a plurality of information points, and each lattice type pattern is decoded with respect to the direction of contiguous virtual lattice point according to each information point.
[main element label declaration]
22 detecting units of 100 images
1 lattice type pattern, 23 codec processing units
101～107 step 24 storage unit
11 anchor points, 31 first directions
111 starting points, 32 second directions
112 direction points, 41,42 virtual axis
12 location lattice point 43 virtual net rulings
The 13 virtual lattice point 6 decoding tables of comparisons
14 information points, 61～64 directions
2 electronic installation A spacings
21 image sensing unit
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the following detailed description that cooperates with reference to graphic preferred embodiment, can clearly present.
Shown in Fig. 4,5, the design of lattice type pattern of the present invention and the preferred embodiment of coding/decoding method thereof, be to obtain the image 100 with a plurality of lattice type patterns 1 by electronic installation 2 also to be decoded, each lattice type pattern 1 is made up of with a plurality of information points 14 a plurality of anchor points 11, a plurality of location lattice point 12.
This electronic installation 2 has image sensing unit 21, some detecting unit 22, codec processing unit 23 and storage unit 24, and wherein, image sensing unit 21 is done a detection in order to obtain as the image 100 of Fig. 5 for some detecting unit 22; Point detecting unit 22 is in order to obtain image 100 and to detect each point position and the size that has in the image 100; The decoding table of comparisons and relevant operational data that storage unit 24 needs in order to store decoding.
23 bases of codec processing unit detect the each point that has in the image 100 and are judged and do computing, and codec processing unit 23 is built-in to be had in order to determine first judgment criterion of this a plurality of anchor points 11 and location lattice point 12, and second judgment criterion (effect repeats after holding) in order to determine these a plurality of information points 14, codec processing unit 23 promptly is according to first judgment criterion, second judgment criterion, and uses the decoding table of comparisons to do corresponding decoding to obtain the decoded result of each lattice type pattern 1 reality.
Below being the circuit block diagram with reference to Fig. 4, based on the process flow diagram of Fig. 6, is auxilliary with Fig. 5, Fig. 7～Figure 10 again, and each step of how lattice type pattern 1 being carried out identification and decoding is described, so that comparatively detailed explanation is done in this preferred embodiment.
At first, obtain the image 100 (step 101) of these a plurality of lattice type patterns 1, and obtain out position of being had a few and the size (step 102) that comprises anchor point 11, location lattice point 12 and information point 14 by a detecting unit 22 with image sensing unit 21.
Shown in Fig. 7,8, illustrate how to indicate anchor point 11 and location lattice point 12 according to first judgment criterion.
As shown in Figure 7, detected information afterwards by codec processing unit 23 process points, indicate site 11 and be that with the difference of location lattice point 12 both shapes or feature are different, its feature can be the difference of shape, color, texture or size and distinguishes, and this preferred embodiment is to be anchor point 11 with area the greater; In addition, and a selected wherein anchor point 11 is as starting point 111, another anchor point 11 that reaches contiguous this starting point 111 is as direction point 112, and the second direction 32 (step 103) of utilizing this starting point 111 and this direction point 112 to define first direction 31 and be different from this first direction 31.
Mandatory declaration be that this preferred embodiment is to select for use the nearest anchor point 11 of image 100 middle distance middle positions as starting point 111, avoids that distortion is arranged because getting the point of image 100 peripheries, fuzzy problem.And the difference of starting point 111 and direction point 112 is: starting point 111 is conllinear in the horizontal direction with contiguous location lattice point 12, and the location lattice point 12 of direction point 112 and vicinity is conllinear not in the horizontal direction.
The first direction 31 of this preferred embodiment is meant that starting point 111 and direction put the direction of 112 conllinear, as for second direction 32 two kinds of ways can be arranged: one, default second direction 32 is and first direction 31 orthogonal directions, two, to set second direction 32 be by the direction of starting point 111 with contiguous location lattice point 12 conllinear; The latter's second direction 32 is may not can orthogonal with first direction 31, this be since when photographic images 100 angle to some extent deflection cause, but can not have influence on follow-up processing, so point also is the advantage of this preferred embodiment: under situation about tiltedly taking the photograph, can also implement.
Shown in Fig. 7,8, can set up the coordinate plane that constitutes by two virtual axis 41,42 along first, second direction 31,32, produce the effect of similar X-Y coordinate axis location, and find out a plurality of location lattice point 12 (steps 104) of position on each virtual axis 41,42.
As shown in Figure 9, illustrate how in this coordinate plane, to indicate information point 14 according to second judgment criterion.
Second judgment criterion is for the marker method of information point 14, be the spacing A that makes this a plurality of location lattice point 12 earlier, produce a plurality of virtual lattice points 13 with interpolation method, and can make a plurality of virtual net rulings 43 (step 105) along these a plurality of virtual lattice points 13, near each virtual lattice point 13, can find out adjacent a plurality of information points 14 (step 106).
Mandatory declaration be also can utilize among other embodiment and calculate this a plurality of location lattice point 12 and starting point 111 vector each other, the position of making these a plurality of virtual lattice points 13 by this.
Cooperate shown in Fig. 4,10, decoded (step 107) with respect to 61～64 pairs of each lattice type patterns 1 of direction of contiguous virtual lattice point 13 according to each information point 14, decoding process is described as follows:
In this preferred embodiment, the mode of codec processing unit 23 decodings can be with reference to the decoding table of comparisons 6 in storage unit 24, be defined in the four direction of different quadrants altogether at the decoding table of comparisons 6, can be with reference to all directions 61～64 in the image 100 as shown in figure 10, contrast the decoding table of comparisons 6 again, all directions 61～64 have represented 00,01,10,11 respectively at different quadrants as can be known.
Mandatory declaration be, in other embodiments, the difference of starting point 111, direction point 112 and location lattice point 12 also can be three's size or shape difference, press down or keep starting point 111, and with 112 cancellations of direction point, just direction is put 112 original positions and vacated, so also can be used as a kind of criterion of judgement.With cancellation direction point 112 is example, and it is vacancy that then contiguous starting point 111 has lattice, utilizes this starting point 111 and the vacancy of contiguous this starting point 111 can define first direction and second direction, and ensuing treatment step is then similar, repeats no more.
In addition, in other embodiments, the decoding table of comparisons can also lattice type pattern 1 in each information point 14 with respect to the displacement (offset) of contiguous virtual lattice point 13 or angular deflection amount wherein each difference represent different decoding meanings, in order to as further using.
Therefore, by image sensing unit 21 obtain image, some detecting unit 22 pairs of each points are indicated, cooperate the decoding table of comparisons 6 in the storage unit 24 at last, in regular turn the information point 14 of each row is understood, can the output decoder result supply follow-up application at last by codec processing unit 23.
Conclude above-mentionedly, the design of lattice type pattern of the present invention and coding/decoding method thereof and electronic installation 2 have a following advantage compared to known:
(1) needing to obtain a complete lattice type pattern at least unlike prior art just can handle, and the encoded content in the content status zone can be subjected to gauge outfit (header) state region group's restriction, no matter the design of lattice type pattern of the present invention and coding/decoding method thereof can solve, and whether lattice type pattern 1 has rotation, camera angle is crooked or be not the problem of a complete lattice type pattern 1, but so the design of lattice type pattern of the present invention and coding/decoding method thereof have bigger distortion toleance degree, higher identification and decoding capability compared to prior art.
(2) mode with interpolation obtains virtual lattice point 13, makes lattice type pattern 1 be not easy its meaning that is cracked out.
(3) have only two kinds of states compared to data point of prior art, therefore can only store one information, the design of lattice type pattern of the present invention and coding/decoding method thereof are that wherein each defines with relative direction, relative shift or the angular deflection amount of being close to virtual lattice point 13 with information point 14, therefore data point can store the information more than two, has significantly improved the data volume of single data point.
(4) be the expression that has or not that utilizes point compared to prior art, make a little distribution unequal and easily discovered, in the lattice type pattern of the present invention, owing to utilize information point 14 to represent the meaning of information point 14 compared to the offset direction of virtual lattice point 13, the number of point is fixed, and human eye is difficult for discovering.
The above person of thought, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to claim scope of the present invention and invention description content generally changes and modifies, and all still belongs in the scope that claim of the present invention contains.
Claims (14)
1. the design of a lattice type pattern and coding/decoding method thereof comprise following step:
(A) obtain the image with a plurality of lattice type patterns, each lattice type pattern has regularly arranged a plurality of anchor points, lattice point and a plurality of information point;
(B) indicate these a plurality of anchor points and these a plurality of lattice points according to first judgment criterion, to set up coordinate plane, wherein this first judgment criterion has following step:
(B-1) a selected wherein anchor point is as starting point, another anchor point of contiguous this starting point is as the direction point, utilize this starting point and this direction point to define first direction and be different from the second direction of this first direction, and make two virtual axis along this first, second direction; And
(B-2) find out the position at the online lattice point of each imaginary axis, it is defined as the location lattice point to set up this coordinate plane;
(C) indicate these a plurality of information points according to second judgment criterion in this coordinate plane, this second judgment criterion has following step:
(C-1) spacing according to this a plurality of location lattice point produces a plurality of virtual lattice points with interpolation method; And
(C-2) find out near these a plurality of virtual lattice points these a plurality of information points; And
(D) respectively this information point after decoding indicates is with the significant information of output device.
2. the design of lattice type pattern according to claim 1 and coding/decoding method thereof, wherein, in the step (B), first judgment criterion is with shape, color, texture or this anchor point of feature differentiation and this lattice point that vary in size.
3. the design of lattice type pattern according to claim 1 and coding/decoding method thereof, wherein, in the step (B-1), the difference of this starting point and this direction point is that this starting point is and contiguous lattice point conllinear, this direction point is and contiguous lattice point conllinear not.
4. the design of lattice type pattern according to claim 1 and coding/decoding method thereof, wherein, in the step (B-1), this first direction is meant the direction of this starting point and this direction point conllinear, and this second direction is meant the direction of the lattice point conllinear of this starting point and contiguous this starting point.
5. the design of lattice type pattern according to claim 1 and coding/decoding method thereof, wherein, step (D) is decoded to this information point respectively according to the different meanings of the relative position of each information point in the step (C-2) and contiguous virtual lattice point and direction representative.
6. the design of lattice type pattern according to claim 1 and coding/decoding method thereof, wherein, the difference of these a plurality of starting points, these a plurality of direction points and these a plurality of lattice points is being characterized as shape, color, texture or varying in size of three.
7. the design of a lattice type pattern and coding/decoding method thereof, be to obtain image also to be decoded with a plurality of lattice type patterns, each lattice type pattern has a plurality of information points of regularly arranged a plurality of anchor points, lattice point and distribution to be formed, and this method comprises following step:
(A) obtain the image with a plurality of lattice type patterns, each lattice type pattern has regularly arranged a plurality of anchor points, lattice point and a plurality of information point;
(B) selected respectively this anchor point of foundation first judgment criterion is as starting point, and utilize the vacancy of this starting point and contiguous this starting point respectively to define first direction and be different from the second direction of this first direction, and make two virtual axis along this first, second direction, find out the position at the online lattice point of each imaginary axis, it is defined as the location lattice point;
(C) according to second judgment criterion will this a plurality of location lattice point spacing produce a plurality of virtual lattice points to find out with interpolation method near a plurality of information points these a plurality of virtual lattice points; And
(D) according to the relative position of each information point and contiguous virtual lattice point and direction this information point is respectively decoded.
8. electronic installation has:
The image sensing unit, in order to obtain the image with a plurality of lattice type patterns, these a plurality of lattice type patterns have regularly arranged a plurality of anchor points, lattice point and a plurality of information point;
The point detecting unit is in order to obtain the position and the feature of these a plurality of anchor points, these a plurality of lattice points and these a plurality of information points;
Codec processing unit, in order to receive the position and the characteristic information of these a plurality of anchor points, these a plurality of dot interlaces and these a plurality of information points obtained through this detecting unit, The built-in has in order to determine these a plurality of anchor points and first judgment criterion of locating lattice point, and in order to determining second judgment criterion of these a plurality of information points, and to its output decoder result after the analyzing and processing in addition; And
Storage unit has the decoding table of comparisons, and this decoding table of comparisons provides this codec processing unit required decoding reference;
By this, this codec processing unit is in receiving behind the position and characteristic information of these a plurality of information points that this detecting unit obtains, according to the decoding meaning of the relative position of these a plurality of data points and lattice point in the decoding table of comparisons in this storage unit back output decoder result that decoded
Wherein, this codec processing unit is after this detecting unit detects the position and characteristic information of these a plurality of information points, according to arbitrary anchor point in the first judgment criterion selected digital image as another anchor point of starting point and contiguous this starting point as the direction point, and utilize this starting point and this direction point to define first direction and be different from the second direction of this first direction, and make two virtual axis along first, second direction, and the position is defined as the location lattice point at the online a plurality of lattice points of each imaginary axis; And
This codec processing unit determines these a plurality of anchor points and location lattice point according to first judgment criterion, again according to second judgment criterion will this a plurality of location lattice point spacing produce a plurality of virtual lattice points with interpolation method, and make near find out these a plurality of virtual lattice points a plurality of information points according to these a plurality of virtual lattice points.
9. electronic installation according to claim 8, wherein, first judgment criterion of this codec processing unit is to distinguish this anchor point and this lattice point with the difference that is characterized as shape, color, texture or size.
10. electronic installation according to claim 8, wherein, first judgment criterion of this codec processing unit is distinguished the mode of this starting point and this direction point, be judge this starting point be with contiguous lattice point be conllinear, this direction point is to be conllinear not with contiguous lattice point.
11. electronic installation according to claim 8, wherein, first judgment criterion of this codec processing unit is to distinguish this starting point, this direction point and this lattice point with the difference that is characterized as shape, color, texture or size.
12. electronic installation according to claim 8, wherein, first judgment criterion of this codec processing unit is judged the mode of this first direction and this second direction, be the direction that this first direction is meant this starting point and this direction point conllinear, and this second direction is meant the direction of the lattice point conllinear of this starting point and contiguous this starting point.
13. electronic installation according to claim 8, wherein, this codec processing unit is to the back output decoder result that decoded of this information point respectively according to the decoding meaning of each information point in the decoding table of comparisons in this storage unit and the relative position of contiguous virtual lattice point.
14. electronic installation according to claim 8, wherein, this decoding table of comparisons is that wherein each defines with relative direction, relative shift or the angular deflection amount of being close to virtual lattice point according to each information point.
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| CN101609372B (en) * | 2008-06-20 | 2012-07-04 | 义隆电子股份有限公司 | Two-dimensional point code as well as decoding device and decoding method thereof |
| CN101615240B (en) * | 2008-06-27 | 2015-10-14 | 义隆电子股份有限公司 | The coding/decoding method of two-dimensional point code |
| CN101655745B (en) * | 2008-08-20 | 2012-06-27 | 原相科技股份有限公司 | Method for improving resolution in positioning on micro bitmap |
| CN101727205B (en) * | 2008-10-23 | 2012-12-12 | 原相科技股份有限公司 | Method for determining coordinate on small bitmap by using motion vector |
| CN102236811B (en) * | 2010-05-04 | 2014-01-08 | 魏守德 | Point image encoding structure, decoding method thereof and electronic device |
| CN102810152B (en) * | 2011-06-03 | 2016-04-20 | 凌通科技股份有限公司 | Can fast decoding etc. gray scale two-dimensional optical identification code device and coding/decoding method |
| CN104034730B (en) * | 2014-05-22 | 2016-04-20 | 立德高科(北京)数码科技有限责任公司 | By detecting ink dot thickness to distinguish method and the device of the current item true and false |
| CN116109798B (en) * | 2023-04-04 | 2023-06-09 | 腾讯科技（深圳）有限公司 | Image data processing method, device, equipment and medium |
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