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The Research Of Design And Realization Of Video Compression In The Real-Time Wireless Multimedia Transmission System

Posted on:2006-01-16Degree:MasterType:Thesis
Country:ChinaCandidate:W B LinFull Text:PDF
GTID:2168360155951678Subject:Communication and Information System
Abstract/Summary:PDF Full Text Request
Video communication enjoys the longest history and is still a rising topic being studied and explored by the communication circles presently. With the coming age of digitization and networked, especially the progressive development of video compression technologies and wireless technologies, chances are provided to wireless communication of mass data. The wireless multimedia communication is the product of multimedia and mobile communication, which provides the people with mobile multimedia service on one hand and presents a more extensive field of technology on the other hand, and which has become a hotspot in the current communications field.Wireless multimedia transmission system that we study, With the theory of wavelet transform, Its video compression modules are made. As the core, this module uses AD company's wavelet transform chip -ADV611, together with other chips such as TI company's DSP-TMS320VC5416, ALTERA company's CPLD-EPM3128, Video picking chip- OV7620 and so on, and the compressed video data is transmitted on the wireless channel via wireless modules.After the development of wireless multimedia is introduced first, relevant theories on video compression, especially those on wavelet compression, are described in detail; then the hardware and software implementation of the system coding charged by the author is introduced; and finally, the results achieved through debugging and analysis are described.The fundamental purpose of this topic is not only to develop out a video compression/depression wireless multimedia system based on wavelet transform and to prove the huge potentials of the wavelet theory in the video compression/decompression field, but also to enable better...
Keywords/Search Tags:wireless multimedia, video compression, wavelet transform, ADV611, OV7620, TMS320VC5416
PDF Full Text Request
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