Patent
One-pass variable bit rate moving pictures encoding
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TLDR
In this article, a method and apparatus for encoding digital video utilising a single pass variable bit rate encoding procedure is presented. But this method is restricted to video sequences and the bit rate for encoding blocks or frames in the sequence of moving pictures is determined according to the complexity of the video sequence.Abstract:
A method and apparatus for encoding digital video utilising a single pass variable bit rate encoding procedure. An encoding quality is set and the bit rate for encoding blocks or frames in the sequence of moving pictures is determined to achieve the selected quality according to the complexity of the video sequence. The bit rate is constrained by predetermined upper and lower bit rate limits.read more
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References
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Journal ArticleDOI
A new rate control scheme using quadratic rate distortion model
Tihao Chiang,Ya-Qin Zhang +1 more
TL;DR: A closed form solution for the target bit allocation which includes the MPEG-2 TM5 rate control scheme as a special case and the fluctuations of the bit counts are significantly reduced by 20-65% in the standard deviation of thebit count while the picture quality remains the same.
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Capacitive pressure sensor
TL;DR: In this paper, a capacitive pressure sensor is provided which has a conductive silicon diaphragm having a thick supporting portion at the periphery thereof and a thin inner deflecting portion which is reduced in thickness from the supporting portion by means of an etching process.
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Video encoding method and system using a rate-quantizer model
TL;DR: In this article, a method for determining quantization level versus bit-rate characteristics of raw video signals in video frames during a pre-encoding phase for video technologies such as MPEG and MPEG-2 is presented.
Patent
Digital video signal encoder and encoding method having adjustable quantization
TL;DR: In this paper, a motion video signal encoder maximizes image quality without exceeding transmission bandwidth available to carry the encoded motion video signals by comparing the encoded frames of the video signal to a desired size of frame, and a cumulative bandwidth balance records an accumulated amount of available bandwidth.
Patent
Method for performing rate control in a video encoder which provides a bit budget for each frame while employing virtual buffers and virtual buffer verifiers
K. Metin Uz,Aaron Wells +1 more
TL;DR: In this paper, a rate control algorithm for an MPEG-2 compliant encoder is presented, which has been shown to be useful for constant bit rate and variable bit rate encoding of video frames.