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Method for screen transmission between computer and mobile equipment through incremental mixed compressed encoding

A mobile device, hybrid compression technology, applied in the direction of image communication, television, electrical components, etc., can solve the problems of high stream coding computing power and transmission capacity, difficult to apply equipment processing power, low overall performance of hardware, etc., to reduce data Processing and transmission volume, support for a wide range of device types, and ideal transmission effects

Inactive Publication Date: 2012-10-03
杭州华银教育多媒体科技股份有限公司
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Problems solved by technology

The limitation of this method is that stream encoding requires relatively high computing and transmission capabilities of the device, and it is often difficult to apply to situations with low device processing capabilities.
[0005] With the rapid development of science and technology, new mobile devices such as smartphones and tablets are constantly emerging. Compared with ordinary computers, these devices have lower overall hardware performance, poorer computing power, and smaller screen sizes, etc.

Method used

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  • Method for screen transmission between computer and mobile equipment through incremental mixed compressed encoding
  • Method for screen transmission between computer and mobile equipment through incremental mixed compressed encoding
  • Method for screen transmission between computer and mobile equipment through incremental mixed compressed encoding

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[0029] Such as figure 1 As shown, the method for screen transmission between the computer and the mobile device of the present invention through incremental mixed compression coding, the main steps are as follows:

[0030] Step 1: collect computer screen data, and perform image encoding on the collected screen data to form screen frame image data. Common image encoding processing methods include:

[0031] JPEG, etc. belong to still image compression coding technology. JPEG has the advantages of small distortion, high compression rate, and fast hardware encoding and decoding speed on the device side;

[0032] MPEG and others belong to motion image compression coding technology. For the specific scene of screen image, MPEG has a large distortion, and realizes real-time compression transmission, which requires high CPU performance of the sender;

[0033] Full incremental mode (similar to VNC), no distortion, small amount of information when the screen changes smal...

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Abstract

The invention discloses a method for screen transmission between a computer and mobile equipment through incremental mixed compressed encoding. The method comprises the following steps of: acquiring screen data on the computer, and performing image encoding on the acquired screen data to form screen frame image data; performing incremental computation on the current screen frame image datum and the previous screen frame image datum by using an incremental computation method, and acquiring incremental data; performing mixed compressed encoding on the current screen frame image datum and the incremental data to form an incremental data packet; and comparing the size of the incremental data packet with the size of the current screen frame image datum, and transmitting the smaller one to the mobile equipment.

Description

technical field [0001] The invention relates to a method for screen transmission between a computer and a mobile device through incremental hybrid compression coding, especially through the method of incremental hybrid compression coding, which reduces the amount of transmitted data on the premise of ensuring the quality of the screen image, and belongs to computer image processing and Network transmission technology field. Background technique [0002] In the existing screen transmission method, there are mainly two methods for processing screen data: image mode and video mode. [0003] In the image mode, the screen data is collected into image data frames at a certain frequency for processing and transmission. The advantage of this method is that image data encoding is widely supported by equipment, and it is convenient to control the transmission frame rate and the amount of transmitted data. The limitation of this method is that when high image quality is requir...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/91
Inventor 周永军戴崇坚
Owner 杭州华银教育多媒体科技股份有限公司
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