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Journal Article A Novel Method for Bitrate Control within Macroblocks Using Kalman and FIR Filters
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Authors
Jinwuk Seok, Kisong Yoon, Bumho Kim, Jeong-Woo Lee
Issue Date
2011-08
Citation
ETRI Journal, v.33, no.4, pp.641-644
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.11.0210.0361
Abstract
In this letter, we propose a novel bitrate control, using both Kalman and FIR filters, based on a Hamiltonian analysis with respect to the amount of bits from each macroblock, in an encoding of a general video codec such as H.264/AVC. Since the proposed bitrate control is based on the simple computation of an optimal control method based on the Hamiltonian analysis, it is not necessary to use additional computation, such as a DCT or quantization, to estimate the bits for bitrate control. As a result, the proposed algorithm can be applied to single-pass encoding and can provide sufficient encoding speed with respect to various applications, even those requiring real-time control. © 2011 ETRI.
KSP Keywords
An encoding, FIR Filter, Optimal control method, Single-pass, Video codec, novel method, real-time control