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Computer vision based non-contact type data transmission method

A data transmission method, computer vision technology, applied in computing, image data processing, components of color TV, etc.

Inactive Publication Date: 2017-09-15
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a non-contact data transmission method based on computer vision for the above-mentioned deficiencies in the prior art, which is based on computer vision technology and uses computer monitors and camera lenses to display and collect computer information Information, one-way transmission of information within and outside the computer in a non-contact manner, has the characteristics of high confidentiality of information transmission, fast transmission speed, and small information loss, and avoids the problem of difficult maintenance of data synchronization due to internal and external isolation of the network. Easy to promote and use

Method used

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  • Computer vision based non-contact type data transmission method

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Embodiment Construction

[0050] Such as Figure 1 to Figure 6 Shown, a kind of non-contact data transmission method based on computer vision of the present invention, comprises the following steps:

[0051] Step 1, encoding and displaying the image sequence, the process is as follows:

[0052] Step 101, generate a standard calibration image sequence and store it in the first computer: First, generate a frame of M rows and N columns of alternate black and white grid image sequences through the first computer 1, the pixels of each black grid and each white grid are all m×m; then, divide the image sequence of black and white grids into n rows and n columns equally into n 2 image areas, select four black grids or four white grids in each of the image areas, and each of the image areas replaces the selected four black grids or four white grids with four colored grids , the colored grid is a standard marker point with 4n 2 The image sequence of the standard marking points is a standard verification image...

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Abstract

The invention discloses a computer vision based non-contact type data transmission method. The computer vision based non-contact type data transmission method comprises the steps of 1, coding and displaying an image sequence, to be specific, 101, generating a standard checking image sequence, 102, building a standard data image sequence, and 103, displaying the image sequence; and 2, decoding the image sequence, to be specific, 201, obtaining an actual checking image sequence, 202, extracting an actual mark point of the actual checking image sequence and calculating a global transformation homographic matrix, 203, extracting a vertex coordinate of each grid of the actual checking image sequence, 204, resolving each grid affine transformation parameter of the actual checking image sequence and determining binary information carried by each grid of the actual checking image sequence, 205, obtaining an actual data image sequence, and 206, decoding the actual data image sequence. As a camera lens is utilized for acquiring computer image information, single-way transmission of computer intranet and extranet information is realized, and efficient communication of computer information between a secret-relating network and a non-secret-involved network can be solved efficiently.

Description

technical field [0001] The invention belongs to the technical field of computer data transmission, and in particular relates to a non-contact data transmission method based on computer vision. Background technique [0002] The definition of non-contact code reading is to encode computer text information into an image according to a defined encoding format, obtain the image of the image through physical isolation, and do not directly transmit data in a wired or wireless manner, that is, use a camera Take computer information coded images, process the obtained images accordingly, extract the desired information from the images obtained by the camera, and then restore them to the original computer text information according to the defined code, so as to realize one-way computer data with high confidentiality transmission. The traditional data transmission adopts the following methods: Option 1. Manual disk copying, two independent networks, the internal network contains confid...

Claims

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Application Information

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IPC IPC(8): H04N7/18H04N9/64H04N19/182G06T9/00
CPCG06T9/007H04N7/18H04N9/646H04N19/182
Inventor 张春森宗晓宇
Owner XIAN UNIV OF SCI & TECH
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