상세정보
학술지
A Novel Method of Bitrate Control within Macroblocks using Kalman and FIR Filters
- 발행일
- 201108
- 출처
- ETRI Journal, v.33 no.4, pp.641-644
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 초록
- 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 제안 키워드
- An encoding, Finite Impulse Response filter(FIR filter), Optimal control method, Real-time control, Single-pass, Video Codec, novel method