A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
A Model of Saliency-Based Visual Attention for Rapid Scene Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Frame-level bit allocation based on incremental PID algorithm and frame complexity estimation
Journal of Visual Communication and Image Representation
A ROI quality adjustable rate control scheme for low bitrate video coding
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Frame complexity prediction for H.264/AVC rate control
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Motion attention based frame-level bit allocation scheme for H.264
Proceedings of the First International Conference on Internet Multimedia Computing and Service
On optimizing H. 264/AVC rate control by improving R-D model and incorporating HVS characteristics
EURASIP Journal on Advances in Signal Processing
A region-based H.263+ codec and its rate control for low VBR video
IEEE Transactions on Multimedia
A generic framework of user attention model and its application in video summarization
IEEE Transactions on Multimedia
Region-based rate control and bit allocation for wireless video transmission
IEEE Transactions on Multimedia
Visual sensitivity guided bit allocation for video coding
IEEE Transactions on Multimedia
Dynamic Bit Allocation for Multiple Video Object Coding
IEEE Transactions on Multimedia
Spatiotemporal Visual Considerations for Video Coding
IEEE Transactions on Multimedia
ROI video coding based on H.263+ with robust skin-color detection technique
IEEE Transactions on Consumer Electronics
IEEE Transactions on Image Processing
A bit allocation method based on picture activity for still image coding
IEEE Transactions on Image Processing
Rate control of MPEG video coding and recording by rate-quantization modeling
IEEE Transactions on Circuits and Systems for Video Technology
Rate control in DCT video coding for low-delay communications
IEEE Transactions on Circuits and Systems for Video Technology
A robust and adaptive rate control algorithm for object-based video coding
IEEE Transactions on Circuits and Systems for Video Technology
Global motion estimation from coarsely sampled motion vector field and the applications
IEEE Transactions on Circuits and Systems for Video Technology
Rate control for videophone using local perceptual cues
IEEE Transactions on Circuits and Systems for Video Technology
Hi-index | 0.00 |
In video coding, a well-designed rate control scheme should be concerned with both the objective and subjective quality. However, the existing H.264 rate control algorithms mainly aim at improving the objective quality without considering the human visual system. In this paper, we propose a novel rate control algorithm that takes into account visual attention. In a group of pictures, bits allocated to each frame are related to the local motion attention in it, and more bits are allocated to the frames with strong local motion attention. Similarly, in each frame, more bits are assigned to visually significant macroblocks (MBs), and fewer to visually insignificant MBs. Experiment results show that the proposed algorithm improves the coding quality in frames with strong local motion, and reduces PSNR fluctuation across frames by up to 22.15%. In addition, PSNR in visually important regions is increased by up to 1.45 dB as compared to the standard H.264 rate control scheme that improves the subjective quality. Increased computation complexity of the proposed algorithm is less than 4%, which is negligible.