Decoding method and device for graphic code in embedded video
A technology in graphic code and video, applied in the field of visible light communication and video processing, it can solve the problems of noise, the pattern of two-dimensional code is meaningless, and the decoding process is difficult.
Active Publication Date: 2020-07-31
赵毅
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Problems solved by technology
[0003] However, QR codes also have the following disadvantages: First, the pattern of QR codes is meaningless to humans and is noise; second, for easy identification, QR codes need to occupy enough visual space, which is difficult to satisfy in some specific scenarios ;For example, in the scene of video embedding, if the QR code occupies enough visual space, it will cause the user to be unable to watch the video normally, and QR code, DataMatrix, etc. are not suitable for the scene of video embedding
However, due to the consideration of human vision, the above methods cannot solve some difficulties in video embedding (such as projection deformation, moiré, etc.), which makes the decoding process difficult, and the data content transmitted through the video cannot be obtained.
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[0064] Embodiments of the present application provide a method and device for decoding graphic codes in embedded video.
[0065] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0066] figure 1 It is a schematic flowchart of a decoding method of a graphic code in an embedded video according to an embodiment of the present invention, such as figure 1 As shown, the method includes the followin...
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Embodiments of the invention disclose a decoding method and apparatus for graphic codes in a code-embedded video. The method and the apparatus are used for identifying and decoding the graphic codes born in the code-embedded video. The method comprises the steps of identifying a target region where the graphic codes are located in the code-embedded video, wherein at least two frame images in the code-embedded video bear at least one graphic code; determining a code block color of each code block of the graphic codes according to the target region; reading code data of each code block in a data region according to the code block color, and reading code attribute information in code attribute blocks; and determining a decoding mode for the graphic codes according to the code attribute information, and performing decoding operation on the code data in the decoding mode to obtain original data corresponding to the graphic codes. According to the technical scheme, the original data corresponding to the graphic codes can be identified and obtained from the code-embedded video, so that the problem of incapability of performing decoding for the graphic codes in the code-embedded video in the prior art is solved.
Description
technical field [0001] The invention relates to the fields of visible light communication and video processing, in particular to a method and device for decoding graphic codes in embedded video. Background technique [0002] Visible light communication technology has become very common in daily life, especially the two-dimensional code technology, such as the QR (Quick Response, quick response) code used by mobile payments such as Alipay and WeChat, and the DataMatrix on electronic components. code. QR codes have the advantages of fast recognition and convenient use. Only a smartphone with a camera is required to use this type of technology. In addition, the changing QR code can also be made into a video to continuously transmit data. [0003] However, QR codes also have the following disadvantages: First, the pattern of QR codes is meaningless to humans and is noise; second, for easy identification, QR codes need to occupy enough visual space, which is difficult to satisf...
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IPC IPC(8): G06K7/14
CPCG06K7/1417G06K7/1452G06K7/1473
Inventor 赵毅杨超凡
Owner 赵毅