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Research on Error-Resilient Processing Techniques for Video and Audio Based on T-DMB System

Author: YuShaoHua
Tutor: LiuLiZhu
School: PLA Information Engineering University
Course: Military Intelligence
Keywords: Mobile TV Terrestrial digital multimedia broadcasting H.264 HE - AAC V2 Error Resilience Error correction Error concealment Player Design
CLC: TN919.81
Type: Master's thesis
Year: 2010
Downloads: 17
Quote: 0
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Abstract


Mobile TV as a new multimedia industry is being more and more attention . However , in practical applications , due to the impact of mobile reception environment of errors and packet loss problems , the video and audio playback quality of the receiving terminal is often not high , to some extent, restricted the development of the mobile TV industry . This study is based on the standard T-DMB mobile TV media information processing error resilience theory and new technology has important theoretical significance and practical value . The content and results of the research are as follows: T-DMB system architecture , focusing on the T-DMB video services external encoder protection . On this basis , the forecast error correction algorithm based on the padding bytes regional identification and error location , to further improve the error correction capability of the T-DMB system . Analysis of the key technologies used in the H.264 standard and error resilience tools , and the loss of the entire frame suitable for mobile TV system video error concealment techniques are studied , error concealment based on motion vector variance and correlation properties algorithm to improve the quality of the recovery image . He - AAV V2 , the principle of the audio compression encoding method and error resilience features, on this basis , the audio error concealment techniques were studied . Designed to substitute to adjacent the correct decoded frame error frame error concealment algorithm to improve the quality of audio playback . T-DMB system stream processing and playback software is designed and implemented .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Image communication, multimedia communication > Image coding
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