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NIOS II-based video processing method

A technology of video processing and digital video, applied in the direction of digital video signal modification, television, closed-circuit television system, etc., can solve problems such as single method

Inactive Publication Date: 2010-06-16
XIAN UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The object of the present invention is to provide a kind of video processing method based on NIOS II, solve the method for existing video processing and fail to make full use of NIOS II soft core, and the technical problem of method singleness

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  • NIOS II-based video processing method

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Embodiment Construction

[0138] see figure 1 , the video surveillance system is generally mainly composed of video signal conversion 1 (ADV7181B), video calculation processing / system control 2, data storage / communication 3, video display signal conversion 4 (DAV7213) and VGA display 5; among them, video calculation processing / system control 2. Consists of video processing 21 and NIOS II control system 22. The implementation method of the video surveillance system is as follows: a. Input the analog video signal to the video signal conversion 1 (ADV7181B), and control it through the NIOS II in the video calculation processing / system control 2 After the system 22 is controlled, the analog video signal is converted into a digital video signal and a synchronous signal I; b. the digital video signal and the synchronous signal I are processed by the video processing 21 in the video computing process / system control 2, and output RGB digital video signals and Synchronous signal II; c. the RGB digital video sig...

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Abstract

The invention provides an NIOS II-based video processing method, which belongs to the technical field of embedded video monitoring. The method comprises the following steps: [1.1] decoding; [1.2] de-interlacing; [1.3] video scaling; [1.4] time sequence allocation; [1.5] video scaling; [1.6] digital video signal format conversion; [1.7] time sequence allocating; and [1.8] signal selection. The method solves the technical problems that the conventional video processing method cannot utilizes an NIOS II soft core sufficiently and that the method is single. Therefore, the method has the advantages of strong suitability, high image resolution and the like.

Description

technical field [0001] The invention belongs to the technical field of embedded video monitoring, and in particular relates to a video processing method based on NIOS II. Background technique [0002] Video surveillance has developed rapidly in recent years, and the scope of application is constantly expanding. In the past, the video surveillance system used in China was mainly an analog system. By the end of the 1990s, with the rapid improvement of network broadband, computer processing power and storage capacity, and the emergence of various practical video information processing technologies, video surveillance has evolved from analog video Surveillance has entered the digital network era, that is, digital video surveillance system. The digital video surveillance system converts the analog signal obtained by the camera into a digital signal, which is convenient for computer processing. While displaying real-time moving images on the computer monitor or on the monitor, th...

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Application Information

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IPC IPC(8): H04N7/26H04N7/30H04N7/18H04N19/44H04N19/59
Inventor 唐小华王花朋
Owner XIAN UNIV OF POSTS & TELECOMM