Adaptive flexible macroblock ordering scheme based on encoding domain

作者：Zhou Yiran; Chen Yaowu^*

来源：Chinese Journal of Scientific Instrument, 2011, 32(9): 2127-2131.

• Error resilience
• Error sensitivity
• Flexible macroblock ordering
• H. 264
• Motion area extraction
• Video encodings

Coded video bitstream suffers significant quality degradation when transmitted over unreliable routes. In this paper, an adaptive flexible macroblock ordering (FMO) scheme based on encoding domain for error-resilient encoding is proposed to cope with this challenge. A motion area extraction method is first utilized, and the error sensitivity of motion area is then computed according to both transmission condition and input picture features. Based on the error sensitivity, optimal FMO encoding mode is calculated, which makes the error-resilient intensity more adaptive. To lower the complexity, most of the information for computations is from the encoding domain, i.e. the result produced in encoding process. Experiments prove that the proposed scheme outperforms fixed-pattern schemes and improves the video quality noticeably in a very efficient way.

• 出版日期2011
• 单位浙江大学