Efficient mode selection for H.264 complexity reduction in a Bayesian framework
Image Communication
Complexity control of H.264/AVC based on mode-conditional cost probability distributions
IEEE Transactions on Multimedia - Special section on communities and media computing
A hierarchical classification-based approach to inter mode decision in H.264/AVC
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
A statistical approach for fast mode decision in scalable video coding
IEEE Transactions on Circuits and Systems for Video Technology
Inter mode selection for H.264/AVC using time-efficient learning-theoretic algorithms
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Mode decision acceleration for scalable video coding through coded block pattern
Journal of Visual Communication and Image Representation
Aggregate power consumption modeling of live video streaming systems
Proceedings of the 4th ACM Multimedia Systems Conference
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A fast feature-based intra/inter coding mode selection scheme for the H.264/AVC video coding standard is proposed in this paper. First, three features are extracted from a macroblock to form a feature space. Then, the feature space is partitioned into three regions, i.e., risk-free, risk-tolerable, and risk-intolerable regions, where the risk is calculated using the rate-distortion (RD) performance loss due to wrong mode decision as well as the probability distribution of inter/intra modes in the feature space obtained from an off-line training process. Depending on the region where the feature vector of a macroblock is located, we can apply mechanisms of different complexity for final mode decision. To calculate the likelihood function of the risk, both parametric and nonparametric density estimation schemes are developed to offer different rate-distortion-complexity tradeoffs. It is demonstrated by experimental results that the proposed algorithm can save approximately 20%-32% of the total encoding time of H.264 (JM7.3a) with little degradation in the rate-distortion performance