Patent
Adaptive error-resilient video encoding using multiple description motion compensation
Shunan Lin,Anthony Vetro,Yao Wang +2 more
- 18 Oct 2002
23
TL;DR: In this paper, a method is proposed to estimate bit rates for sets of coding parameters, based on characteristics of a channel, and an end-to-end distortion is estimated based on signal statistics of the video.
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Abstract: A method estimates bit rates for sets of coding parameters, based on characteristics of a channel, and an end-to-end distortion is estimated based on signal statistics of the video. A particular set of coding parameters that satisfies an available bit rate of the channel and that minimizes the end-to-end distortion of the video is selected. Motion compensated multiple descriptions of the video are encoded according to the selected set of coding parameters.
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Citations
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Film grain simulation based on pre-computed transform coefficients
Gomila Cristina,Llach Joan +1 more
- 21 Jan 2016
TL;DR: In this article, a block of pre-computed transformed coefficients undergoes filtering responsive to a frequency range that characterizes a desired pattern of the film grain, and then the filter undergoes an inverse transform to yield the desired pattern.
1
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Hybrid look-ahead and look-back distortion estimation
Hua Yang,Jill Macdonald Boyce,Xiaohui Wei +2 more
- 27 Jun 2007
TL;DR: In this article, a value of distortion associated with at least a portion of a particular picture in a series of pictures is determined, based on distortion in the particular picture or in a previous picture in the series.
Patent
Rate control for low latency video encoding and transmission
Pan Hao,Chou Jim C,Fernandes Felix C +2 more
- 02 Feb 2021
TL;DR: In this paper, a video encoding system in which pixel data is decomposed into frequency bands prior to encoding is presented, and quantization parameters for the frequency bands are jointly calculated to optimize the quality of the displayed frames after decoder reconstruction and wavelet synthesis on a receiving device.
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Patent
Method and device for optimal bit allocation between different sources of information in digital video compression
Guido M. Schuster,Aggelos K. Katsaggelos,Mark R. Banham,James C. Brailean +3 more
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TL;DR: In this paper, the authors present a method (200, 400) and device (500) for, within a variable or fixed block size video compression scheme, providing optimal bit allocation among at least three critical types of data: segmentation, motion vectors and prediction error, or DFD.
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Patent
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