TWI397013B - The dot code pattern and the dot code group pattern and the image processing circuit of the density coding type - Google Patents

Description

Density coded dot code pattern and dot code group pattern and image processing circuit thereof capable of providing information

The present invention relates to a dot code pattern and a dot code group pattern, and more particularly to a dot code pattern and a dot code group pattern for providing a density coded pattern of information.

Regarding the conventional techniques of the dot pattern and the dot code group pattern, Japanese Patent Laid-Open Publication No. 2007-11890, US Patent Publication No. US2007/026547, US Patent No. US Patent No. 6,548,768, and US Patent Publication No. US2003 /011164, U.S. Patent Publication No. US2006/0007255, etc., is known.

The first figure shows an example of a conventional dot pattern. The conventional dot code pattern 10 completely removes the actual positioning point, and finds the form of the virtual positioning point by the relative relationship of the mark 10a. 2A to 2D to FIG. 2 are diagrams showing the coding of the representative information of the first dot conventional dot code pattern. In the second A diagram, the symbol 10a is located above the virtual center 10b, and the code of the representative information of the symbol 10a is "00". In the second B diagram, the symbol 10a is located on the right side of the virtual center 10b, and the code of the representative information of the symbol 10a is "01". In the second C diagram, the symbol 10a is located below the center 10b, and the code of the representative information of the symbol 10a is "10". In the second D diagram, the symbol 10a is located on the left side of the virtual center 10b, and the code of the representative information of the symbol 10a is "11".

The inventors of the present invention have improved the amount of information that can be exhibited by the conventional cloth pattern of the conventional dot pattern. The dot code pattern and the dot code group pattern of the density coding type of the information can be provided, and the information amount can be improved under the premise that the mark density is small.

The object of the present invention is to provide a dot code pattern and a dot code group pattern, and add this parameter of the symbol density to become one of the coded data components of the information representation of the symbol, and the dot code of the present invention is provided on the premise that the symbol density is small. The amount of information that can be displayed by patterns and dot code group patterns is far more than that of conventional dot code patterns.

Another object of the present invention is to provide an image processing circuit for a dot code pattern and a dot code group pattern of a density coding type.

In order to achieve the object of the present invention, the present invention provides a point code pattern and a dot code group pattern of an information-providable density-encoded type described in claims 1 and 3.

In order to achieve another object of the present invention, the present invention provides an image processing circuit for processing a dot code pattern of a density coded type described in claim 5 of the patent application.

In order for the reviewing committee to have a deeper understanding and understanding of the structure, features and efficacy of the present invention, the preferred embodiments are described in detail below with reference to the drawings:

First, the advantages of the dot code pattern and the dot code group pattern of the density-encoded pattern of the present invention can be explained. In order to reduce the visual rush to the user The expression of the conventional point code pattern is a trend in which the mark density is small and the visible range is large. However, due to the small mark density of the conventional dot pattern, the accompanying negative result is This will result in a decrease in the number of marks per unit area, and the amount of information that can be displayed will become smaller. The dot code pattern and the dot code group pattern of the present invention add one parameter of the symbol density to one of the coded data components of the information representation of the symbol. Therefore, the point of the present invention is small on the premise that the symbol density is small. The amount of information that the code pattern and the dot code group pattern can display is far more than the conventional dot pattern.

The third figure shows an example of a dot code pattern of the density-encoded version of the present invention that can provide information. The dot code pattern 20 of the density coding type of the present invention can include: a plurality of first virtual grid points 21 and a plurality of symbols 201. The plurality of first virtual grid points 21 form a plurality of first regions 203. Each of the first regions 203 includes a plurality of second virtual grid points 23, and the plurality of second virtual grid points 23 constitute a plurality of second regions 2031. A plurality of symbols 201 are respectively disposed in one of the second regions 2031 in each of the first regions 203. The information represented by the symbol 201 is related to the position of the second area 2031 where the mark 201 is located and the direction of the mark 201 with respect to the center of the second area 2031 in which it is located.

In the third figure, 16 first virtual grid points 21 constitute 16 first regions 203, and each first region 203 includes 4 second virtual grid points 23. A second virtual grid point 23 is formed into a second area 2031. Therefore, each first area 203 includes four second areas 2031. In contrast to the first picture, Although the arrangement range of each of the symbols 201 of the third figure is still within the range of the corresponding first region 203, the last actual arrangement position of each of the symbols 20 is different from the original position of the conventional dot pattern.

The present invention rearranges the symbols 201 in the second regions 2031. The mark 201 originally located in the first area 203 is not displaced to the other first area 203, but is still disposed within the range of the first area 203 to which it belongs, but the line 201 is arranged in the first area. One of the second regions 2031 of 203.

The fourth figure shows a schematic diagram of the coding composition of the dot code pattern and the dot code group pattern of the density-encoded pattern of the present invention. The representative information of the symbol 201 has a coding composition including the first coded material 201a and the second coded material 201b.

The encoded content of the first encoded material 201a is determined by the second region 2031 in which the symbol 201 is located, the position of which is determined by the associated seating position of the associated first region 203. See Figures 5 through 5D. The symbol 201 of the fifth A diagram is disposed in the second area 2031a, and the second area 2031a is located in the upper left corner of the first area 203 to which it belongs. Therefore, the first encoded material 201a of the symbol 201 is "00", the symbol 201 The coded data is "00XX", where "XX" is the second coded material 201b. The symbol 201 of the fifth B diagram is disposed in the second area 2031b, and the second area 2031b is located in the upper right corner of the first area 203 to which it belongs. Therefore, the first encoded material of the symbol 201 is "01", and the number of the symbol 201 is edited. The code data is "01XX", where "XX" is the second coded material 201b. The symbol 201 of the fifth C diagram is disposed in the second area 2031c, and the second area 2031c is located at the lower left corner of the first area 203 to which it belongs. Therefore, the second encoded material of the symbol 201 is "10", and the code of the symbol 201 is encoded. The data is "10XX", where "XX" is the second encoded material 201b. The symbol 201 of the fifth D diagram is disposed in the second region 2031d, and the second region 2031d is located at the lower right corner of the first region 203 to which it belongs. Therefore, the first encoded material of the symbol 201 is "11", and the encoding of the symbol 201 The data is "11XX", where "XX" is the second encoded material 201b.

The encoded content of the second encoded material 201b is determined depending on the direction of the symbol 201 relative to the center of the second region 2031 in which it is located. Each of the second virtual grid points 23 can be virtualized as the center of the corresponding second area 2031. Please refer to Figures 6 to 6D. The symbol 201 of the sixth A diagram is arranged in the upper direction of the center 23' of the second region. Therefore, the second encoded material 201b of the symbol 201 is "00", and the encoded data of the symbol 201 is "XX00", where "XX" is The first encoded material 201a. The symbol 201 of the sixth B diagram is disposed in the right direction of the center 23' of the second region. Therefore, the second encoded material 201b of the symbol 201 is "01", and the encoded material of the symbol 201 is "XX01", where "XX" is The first encoded material 201a. The symbol 201 of the sixth C diagram is arranged in the left direction of the center 23' of the second region. Therefore, the second coded material 201b of the symbol 201 is "10", and the coded material of the symbol 201 is "XX10", where "XX" is The first encoded material 201a. The symbol 201 of the sixth D diagram is disposed at the center 23' of the second region. In the lower direction, therefore, the second encoded material 201b of the symbol 201 is "11", and the encoded material of the symbol 201 is "XX11", wherein "XX" is the first encoded material 201a.

Both the conventional dot code pattern 10 of the first figure and the dot code pattern 20 of the present invention of the third figure are placed in the same area of the same number of 16 marks 10a, 201, so that the conventional point code Both the pattern 10 and the dot code pattern 20 of the present invention have the same code point density. However, the information combination of the conventional dot pattern 10 is only 4^16 (that is, 4294967296 codes), and the dot pattern 20 of the present invention Because of the density coding, the information combination can be upgraded to 16^16 (that is, 18446744073709551616 codes).

The seventh figure shows an example of the variation of the dot code pattern of the density-encoded pattern of the present invention. Here, the difference between the example of the third figure and the variation of the seventh figure is explained. In the third figure, the four second regions 2031 of the first region 203 are in a square arrangement. Please refer to the third and seventh figures in each other. In the seventh figure, the four second regions 2031 of the first region 203 are arranged in a horizontal linear arrangement.

The eighth figure shows a schematic diagram of a dot code group pattern of the density-encoded pattern of the present invention. The point code group pattern 3 of the density-encoded type of the present invention is composed of a plurality of dot code patterns 20, and the structure of the dot pattern 20 is not repeated here. The dot code patterns 20 are arranged adjacent to each other and arranged in a dot code group pattern 3. Please refer to the ninth figure, of course, a plurality of point codes The group pattern 3 can also be arranged adjacent to each other.

The tenth figure shows the architecture of the image processing circuit of the dot code pattern and the dot code group pattern of the density coding type of the present invention. The image processing circuit 4 is for processing the dot code pattern 20 and the dot code group pattern 3 of the present invention, and outputs signals corresponding to the information represented by all the symbols 201 of the dot code pattern 20 and the dot code group pattern 3. The image processing circuit 4 includes a first device 41 and a second device 43, which respectively describe the following text. The first device 41 is configured to optically read the dot code pattern 2 or the dot code group pattern 3, for example, read the dot code pattern 20 and the dot code group pattern 3 of the third, eighth, and ninth views, and the system The optically read dot code pattern 20 or the dot code group pattern 3 is converted into a corresponding digital signal. The second device 43 is connected to the first device 41. The second device 43 is for processing the digital signal, and outputs a signal corresponding to the information represented by all the symbols 201 of the dot code pattern 20 and the dot code group pattern 3. The specific components of the first device 41 may employ at least a CCD photographic image element, and the specific components of the second device 43 may employ components including at least a digital processor (DSP). Since all the symbols 201 of the dot code pattern 20 of the present invention, all of the first virtual grid points 21, and all of the second virtual grid points 23 are set according to a predetermined rule, the digital processor (DSP) performs conventional related image processing. Skills, and the first virtual grid points 21, the second virtual grid points 23, and the tokens 201 are distinguished, and then the digital processor (DSP) executes the conventional related image processing technique according to each token 201. Correlation with the corresponding first virtual grid point 21 and second virtual grid point 23, The information represented by the symbol 201 is determined by determining the position of the second region 2031 where the symbol 201 is located and the direction of the symbol 201 relative to the center 23' of the second region in which it is located.

The dot code pattern and the dot code group pattern of the density coding type of the present invention are added to the parameter of the mark density, and become one of the coded data components of the information expression of the mark, although the invention has a small mark density, the present invention The amount of information that can be displayed by the dot pattern and the dot code group pattern is far more than that of the conventional dot pattern, which is an improvement of the present invention.

However, the above-mentioned preferred embodiments of the present invention are not intended to limit the scope of the present invention, and those skilled in the art can clearly make changes and modifications. The substance of the invention.

10‧‧‧French dot pattern

10a‧‧‧ mark

3‧‧‧ point code group pattern

20‧‧‧ dot pattern

21‧‧‧First virtual grid

23‧‧‧The second quasi-point

23'‧‧‧ Second Regional Center

201‧‧‧ mark

201a‧‧‧ first coded material

201b‧‧‧Second coded material

203‧‧‧First area

2031‧‧‧Second area

2031a~2031d‧‧‧Second area

4‧‧‧Image Processing Circuit

41‧‧‧First device

43‧‧‧second device

The first figure shows an example of a conventional dot pattern.

2A to 2D to FIG. 2 are diagrams showing the coding of the representative information of the first dot conventional dot code pattern.

The third figure shows an example of a dot code pattern of the density-encoded version of the present invention that can provide information.

The fourth figure shows a schematic diagram of the coding composition of the dot code pattern of the density-encoded pattern of the present invention.

Fifth A diagram, fifth D diagram to figure, showing the symbol of the dot code pattern of the present invention Schematic diagram of the first encoded data of the information.

Fig. 6A to Fig. 6D to Fig. are diagrams showing the second coded data representing the information of the dot code pattern of the present invention.

The seventh figure shows an example of the variation of the dot code pattern of the density-encoded pattern of the present invention.

The eighth figure shows a schematic diagram of a dot code group pattern of the density-encoded pattern of the present invention.

The ninth drawing shows a schematic diagram of a plurality of dot code group patterns arranged together in the present invention.

The tenth figure shows the architecture of the image processing circuit of the dot code pattern and the dot code group pattern of the density coding type of the present invention.

20‧‧‧ dot pattern

21‧‧‧First virtual grid

23‧‧‧second virtual grid

201‧‧‧ mark

203‧‧‧First area

2031‧‧‧Second area

Claims (5)

A dot code pattern includes: a plurality of first virtual grid points, which are formed into a plurality of first regions, the first region includes a plurality of second virtual grid points, and a plurality of second regions are formed; and the plurality of tokens are respectively Provided in one of the first regions, the second region, wherein the information represented by the symbol is related to the location of the second region in the first region and the symbol relative to the The direction of the center of the second region is related. The dot pattern according to claim 1, wherein the first area is a square area. A dot code group pattern, comprising: a plurality of dot code patterns, wherein each dot code pattern comprises: a plurality of first virtual grid points, which are composed of a plurality of first regions, the first region comprising a plurality of second virtual grids And forming a plurality of second regions; the plurality of tokens are respectively located in one of the first regions of the second region, wherein the information represented by the token is in the second region where the token is located The location in the first region and the direction of the marker relative to the direction of the center of the second region in which it is located. The dot code group pattern according to claim 3, wherein the first area is a square area. An image processing circuit for processing a dot code pattern of a density coded type, the image processing circuit comprising: a first device for optically reading the dot code pattern and/or the dot code group pattern, and for converting the optically read dot code pattern and/or the dot code group pattern into corresponding a digital signal, wherein the dot code group pattern includes at least one of the dot code patterns, and each dot code pattern includes: a plurality of first virtual grid points, which are composed of a plurality of first regions, the first region includes a plurality of second virtual grid points, and forming a plurality of second regions; a plurality of tokens respectively located in one of the second regions of the first region, wherein the information represented by the token is associated with the token The location of the second region in the first region and the direction of the symbol relative to the center of the second region in which it is located; a second device coupled to the first device and configured to process the digit The signal outputs a signal corresponding to the information represented by the dot pattern and/or each symbol of the dot code group pattern.