H.264 Rate-Distortion Analysis Using Subjective Quality Metric

Authors:
Luís Teixeira;Luís Corte-Real
Affiliations:
UCP - E.Artes / CITAR, Porto, Portugal 4169 005;FE.UP / INESC Porto, Porto, Portugal 4250 005
Venue:
FMN '09 Proceedings of the 2nd International Workshop on Future Multimedia Networking
Year:
2009

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Abstract

In this paper we provide an analysis of rate-distortion (R-D) relationship in an H.264 codec using as quality metric Structural Similarly Information (SSIM). This study focus on the quantization parameter, namely rate-quantization (R-Q) functions and distortion-quantization (D-Q) functions. Together, these functions allow a better understanding of the rate-distortion (R-D) behaviour of an H.264 video codec, which is the key issue of optimum bit allocation. Initial results are presented and discussed.