Operational distortion-quantization curve-based bit allocation for smooth video quality
Journal of Visual Communication and Image Representation
SNR-based bit allocation in video quality smoothing
PCM'06 Proceedings of the 7th Pacific Rim conference on Advances in Multimedia Information Processing
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This paper proposes a rate control scheme for smoothing distortion in low bit-rate video coding. We focus on single-pass encoding that is applicable to both live and off-line streaming. The new rate control tends to achieve slow and smooth distortion variation over time. Without the knowledge of future frames, statistics of previously coded frames are used to derive the expected distortion for the current frame. Constraints of decoder buffer size and pre-loading time are considered in the design. The proposed technique is based on the rate and distortion models used in the TMN8. Its advantages have been shown by experiments.