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Rate-distortion optimization (RDO), in which distortion metric plays a vital role, has been proved to be an effective way in hybrid video coding. This paper proposes an improved rate-distortion optimization method based on SSIM (IRDO-SSIM) in RDO mode selection process. And the derivation of the proper multiplier to fit for the IRDO-SSIM is mainly described in this paper. Simulation results show that...
Rate control algorithm is of great importance to video coding. Many existing schemes are based on the quadratic rate control scheme. The proposed method introduces a novel rate control algorithm with adaptive rounding offset, aiming at achieving bit-rate optimization and adaptation of the content of the video sequences. The rounding offset is chosen adaptively based on the minimum blocks' discontinuities...
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