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MPEG-4 image transmitting method and system based on MCF5272 platform

A technology of MPEG-4 and transmission method, which is applied in MPEG-4 image transmission method, i.e. system field, can solve problems such as low security of Windows operating system, unsuitable application for occasions with high security requirements, unfavorable main functions of PC, etc. Achieve the effect of no special management, simple structure and low price

Inactive Publication Date: 2005-04-13
SHANGHAI UNIV
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AI Technical Summary

Problems solved by technology

However, the main function of the video server is to store, select, and transmit a large amount of data, but rarely perform data processing
Therefore, using a PC as a video server is not conducive to the main functions of the PC, but also increases the cost of the system, because it must provide a large number of unnecessary hardware and software
Moreover, the security of the Windows operating system is relatively low, and it is not suitable for applications with high security requirements.

Method used

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  • MPEG-4 image transmitting method and system based on MCF5272 platform
  • MPEG-4 image transmitting method and system based on MCF5272 platform
  • MPEG-4 image transmitting method and system based on MCF5272 platform

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Embodiment Construction

[0031] A preferred embodiment of the present invention is: see figure 1 , the MPEG-4 image transmission system based on the MCF5272 platform is composed of an image acquisition unit 1, a format conversion unit 2, an image compression unit 3, a core processing unit 4, and a power supply unit 5.

[0032] The above-mentioned image acquisition component 1 may include an image acquisition chip and a video acquisition head. The model of the image acquisition chip may be SAA7114 of Philips Company.

[0033] The above-mentioned format conversion component 2 may include an FPGA chip, an SDRAM chip, and a PROM chip. The SDRAM chip can be used as the cache of the FPGA chip, and the PROM chip can be used as the program memory of the FPGA chip. The model of described FPGA chip can be the XC2S200 of Xilinx Company, the model of SDRAM chip can be the K4S643232C of Samsung Company, the model of PROM chip can be the XC17S200 of Xilinx Company, see Figure 5 .

[0034] The above-mentioned i...

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Abstract

This invention relates to a MPEG-4 image transmission method and system based on MCF5272 platform. The system is composed components of image collection, format transformation, image compression, a core process and a power supply. The method is as follows: 1, applying analog signals received by the image collection component from the camera head for A / D conversion, 2, applying the digital signal of CCIR 656 format transferred the image collection component by the format conversion unit to convert it to that of CCIR601 format, 3, applying the digital signals from the format conversion unit to compress the MPEG-4 format 4, applying the core process component to implant uClinux operation system and applied software processed and forwarded to networks.

Description

technical field [0001] The invention relates to an MPEG-4 image transmission method, that is, a system, in particular to a device that can be implemented on an MCF5272 embedded platform for image transmission. Background technique [0002] The structure of the traditional MPEG-4 image transmission system is based on the C / S mode of PC. The video server sends the video information stored in the storage system to the corresponding client through the network interface in the form of video stream, and responds to the interactive request of the client to ensure the continuous output of the video stream. A common video server uses a host computer to realize its functions. It runs on a standard operating system, such as Windows, and its hardware consists of a series of numerous video disk arrays. However, the main function of the video server is to store, select, and transmit a large amount of data, but rarely perform data processing. Therefore, using a PC as a video server is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/70
Inventor 余成融蔡皓昌潘志浩
Owner SHANGHAI UNIV
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