A method for motion adaptive frame rate up-conversion
IEEE Transactions on Circuits and Systems for Video Technology
A new rate control scheme using quadratic rate distortion model
IEEE Transactions on Circuits and Systems for Video Technology
Overview of fine granularity scalability in MPEG-4 video standard
IEEE Transactions on Circuits and Systems for Video Technology
Content-aware video adaptation under low-bitrate constraint
EURASIP Journal on Advances in Signal Processing
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To maximize user satisfaction of video streaming, there is a tradeoff between spatial quality (image clarity) and temporal quality (motion smoothness) under a limited bandwidth. How to balance the requirement for the two aspects is a subjective selection. In this paper, we firstly introduce how to efficiently measure the subjective perceived spatial and temporal quality. Then we present a visual perception model to predict viewer's satisfaction given the perceived spatial quality and temporal quality based on the result of a user study. At last, an adaptive video streaming system utilizing the perception model is proposed, which can automatically choose dropping fames or cutting the scalable bitstream according to the variable bandwidth, and obtain maximized perceptual quality.