Information transmission method based on video image
An information transmission, video image technology, applied in the field of information transmission, can solve the problems of environmental noise or other sound interference, no information direct transmission, low information transmission rate, etc., to achieve less environmental interference, improve transmission efficiency, and information storage capacity. big effect
Active Publication Date: 2015-01-14
DALIAN UNIV OF TECH
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Problems solved by technology
The main disadvantages of this technology are: (1) Each two-dimensional image is a black and white image, and it uses multiple pixels to represent one bit of information, so its information storage capacity is very small, so a lot of images are required to store code stream information , with a low information transfer rate
(2) There is no function of direct transmission of information
[0006] To sum up, the disadvantages of the existing audio-based information technology solutions are mainly (1) easily disturbed by environmental noise or other sounds
(2) The transmission rate is low
Method used
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] The principle of the present invention is as follows: first, the data information is encoded at the signal sending end; then the coded code stream is modulated into the image to generate video information; through the video transmission channel, the camera at the receiving end is used to obtain the information generated by the sending end. Then demodulate the received video to obtain the code stream information in the image; finally decode the demodulated code stream to restore the transmitted data.
[0020] Such as figure 1 Shown, a kind of information transmission method based on video image, it comprises the following steps:
[0021] 1) The operation at the video encoding end (information sending end) is as follows:
[0022] Such as figure 2 As shown, ① segment the code stream of the data to be transmitted, and pack the data to be transm...
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The invention relates to an information transmission method based on a video image. The method comprises the steps that data information is encoded at a signal sending end; then a code stream obtained after encoding is modulated into the image, and video information is generated; the video information which is generated at the signal sending end is acquired by a camera arranged on equipment through a video transmission channel at a receiving end, then a received video is demodulated, and the code stream information in the image is acquired; at last, the demodulated code stream is decoded, and the transmitted data can be restored and obtained. Data transmission can be conducted only by the camera arranged on a mobile terminal, the high resolution ratio and high imaging quality are achieved, the cost is low, environmental disturbance is small, and therefore the problem that data can not be transmitted when a network and a wireless network are cut off, and a USB flash disk is not connected is solved. Accordingly, the information transmission method based on the video image can be widely applied to the data transmission field.
Description
technical field [0001] The invention relates to an information transmission method, in particular to an information transmission method based on video images. Background technique [0002] With the development of communication technology, mobile terminals represented by mobile phones, tablet computers, notebook computers, MP3 players, etc. have been widely used. In order to facilitate the mutual transmission of information between mobile terminals, people have developed a variety of different data transmission methods. At present, the information exchange technologies between mobile terminals mainly include bluetooth, infrared, wifi, etc. Before information transmission, these technologies must go through user identity authentication, receiving and other links, and wifi cannot be carried out in the absence of network or wireless transmission of data. [0003] The existing transmission technologies are as follows: [0004] 1) Ma Ming, Li Haibo. Design and implementation of...
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IPC IPC(8): H04N21/2383H04N21/438H04N21/435
CPCH04N21/2383H04N21/435H04N21/4382
Inventor 陈喆殷福亮刘奇琴
Owner DALIAN UNIV OF TECH