Data Analysis with Excel: An Introduction for Physical Scientists
Data Analysis with Excel: An Introduction for Physical Scientists
Image quality assessment: from error visibility to structural similarity
IEEE Transactions on Image Processing
Scalable rate control for MPEG-4 video
IEEE Transactions on Circuits and Systems for Video Technology
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
Rate-distortion analysis for H.264/AVC video coding and its application to rate control
IEEE Transactions on Circuits and Systems for Video Technology
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Rate control regulates the output bit rate of a video encoder in order to obtain optimum visual quality within the available network bandwidth and to maintain buffer fullness within a specified tolerance range. Due to the benefits of intra-only encoding, such as less computational cost and less latency, it has been more and more widely used. In this paper, we propose an accurate intra-only rate control scheme for H.264/AVC, which includes a novel complexity measurement and a new rate-distortion (R-D) model. We also propose a linear rate-complexity model which takes the intercept into consideration to reduce the estimation error. The proposed R-D model is integrated by the linear rate-complexity model and an exponential rate-quantization model. Based on theoretical analysis and experimental validation, the proposed scheme has high bits prediction precision, and it can also accurately handle buffer fullness. Compared with JVT-W042, our algorithm achieves higher average PSNR and improves the coding quality up to 0.35dB.