Resolution scalable video coder for low latency

Details Resolution scalable video coder for low latency Resolution scalable video coder for low latency

2006-03-07

2006-03-07

Rao, Andy (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240270

Reexamination Certificate

active

07010043

ABSTRACT:
A method in a scalable encoder for reducing the average latency associated with randomly accessing an encoded digital video signal is disclosed. This method may include converting a digital video signal into a first layer having a first degree of quality and a second layer having a second degree of quality that is higher than the first degree of quality. The method may also include encoding the first layer at a first intra-frame rate, and encoding the second layer at a second intra-frame rate that is lower than the first intra-frame rate. A method in a scalable decoder for reducing the average latency associated with randomly accessing an encoded digital video signal is also provided. The method includes accessing a first layer of a digital video signal. The first layer includes the digital video signal encoded at a first degree of quality and a first intra-frame rate. The method also includes accessing a second layer of the digital video signal. The second layer includes the digital video signal encoded at a second degree of quality higher than the first degree of quality and a second intra-frame rate lower than the first intra-frame rate.

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“High Performance Resolution Scalable Video Coding Via All-Phase Motion Compensated Prediction of Wavelet Coefficients,” Xin Li and Louis Kerofsky, SPIE vol. 4671, Oct. 2001, pp. 1080-1090.

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