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Encoding and decoding method for microdot matrix

一种编码方法、编码方式的技术，应用在机器使用的记录载体、仪器、电气元件等方向，能够解决无法解码出画面、画面无法扫描到任一完整微小码方块等问题

Active Publication Date: 2009-09-09
PIXART IMAGING INC
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Problems solved by technology

[0004] In order to solve the problem in the prior art that the picture cannot scan any complete micro-code square on the micro-code matrix, so that the coordinates corresponding to the picture on the micro-code matrix cannot be decoded, the present invention discloses a micro-code Matrix Encoding and Decoding Methods

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  • Encoding and decoding method for microdot matrix
  • Encoding and decoding method for microdot matrix
  • Encoding and decoding method for microdot matrix

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Embodiment Construction

[0030] In order to solve the problem in the prior art that the picture cannot scan any complete micro-code square on the micro-code matrix, so that the coordinates corresponding to the picture on the micro-code matrix cannot be decoded, the present invention discloses a micro-code Matrix encoding and decoding methods. In the method disclosed in the present invention, the micro-code distribution contained in the data area is combined and arranged according to the reflected Gray code, so as to encode the coordinates of a micro-code block containing the data area on the micro-code matrix . After implementing the encoding and decoding method disclosed in the present invention on the micro-code matrix, when scanning the picture on the micro-code matrix, even if no complete micro-code block is captured, it is still possible to pass the distance between adjacent micro-code blocks. The relationship deduces that the scanned frame corresponds to the coordinates of the microcode matrix....

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Abstract

The present invention provides an encoding and decoding method for microdot matrix, in a data region of each microdot block on a microdot matrix, a coordinate of each the microdot block on the microdot matrix is encoded into a plurality of microdots included by the data region according to an encoding method based on Reflected Gray codes. With the aid of a unique changed bit between any two consecutive Reflected Gray codes, an estimated coordinate of a frame, which is fetched by scanning the microdot matrix, on the microdot matrix, may still be decoded even if no complete microdot block is fetched within the frame.

Description

technical field [0001] The present invention relates to an encoding and decoding method, in particular to an encoding and decoding method for Microdot Matrix. Background technique [0002] see figure 1 , which is a schematic diagram of a picture 102 generated after scanning a tiny code matrix, wherein the tiny code matrix has a plurality of tiny code squares 120 arranged in a matrix, and the picture covers at least four complete tiny codes Block 120. Please note that each tiny code block 120 of the four complete tiny code blocks 120 is adjacent to the other two tiny code blocks 120 of the four complete tiny code blocks 120 . Such as figure 1 As shown, each microcode block 120 includes a plurality of microcodes 160 , and each microcode block 120 is divided into a header area 122 and a data area 124 . The header area 122 included in each microcode block 120 has a plurality of microcodes 160 distributed in the same combination and arrangement, so as to identify the covered ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/17
CPCG06K19/06037
Inventor 魏守德王嘉霖
Owner PIXART IMAGING INC
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