Abstract
The H.264/AVC standard yields higher coding efficiency rates than other video coding standards. This is because it uses the rate-distortion optimization (RDO) technique, which selects the optimal coding mode and a reference frame for each macroblock (MB). In order to achieve this, the encoder has to encode a given block by exhaustively using all kinds of combinations (including different intra and inter-prediction modes). As a result, the computational complexity of video coding in H.264/AVC is extremely high. In this paper, two fast intra-/inter-mode-decision algorithms are proposed to reduce the complexity of the encoder. Both of these algorithms are based on the inter-frame correlation among adjacent pictures. For the fast intra-mode-decision, we used the intra-mode of the most-correlated MB at the reference frame to encode the current MB and the stationary property of the current MB was used for the fast inter-mode-decision. The simulation results show that the proposed algorithms significantly reduced the computational complexity with a negligible loss of PSNR and a slight increase in bitrate.
| Original language | English |
|---|---|
| Pages (from-to) | 803-813 |
| Number of pages | 11 |
| Journal | Signal Processing: Image Communication |
| Volume | 24 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2009 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Software
- Signal Processing
- Computer Vision and Pattern Recognition
- Electrical and Electronic Engineering
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Fast mode-decision for H.264/AVC based on inter-frame correlations. / Ko, Hyunsuk; Yoo, Kiwon; Sohn, Kwanghoon.
In: Signal Processing: Image Communication, Vol. 24, No. 10, 01.11.2009, p. 803-813.Research output: Contribution to journal › Article
TY - JOUR
T1 - Fast mode-decision for H.264/AVC based on inter-frame correlations
AU - Ko, Hyunsuk
AU - Yoo, Kiwon
AU - Sohn, Kwanghoon
PY - 2009/11/1
Y1 - 2009/11/1
N2 - The H.264/AVC standard yields higher coding efficiency rates than other video coding standards. This is because it uses the rate-distortion optimization (RDO) technique, which selects the optimal coding mode and a reference frame for each macroblock (MB). In order to achieve this, the encoder has to encode a given block by exhaustively using all kinds of combinations (including different intra and inter-prediction modes). As a result, the computational complexity of video coding in H.264/AVC is extremely high. In this paper, two fast intra-/inter-mode-decision algorithms are proposed to reduce the complexity of the encoder. Both of these algorithms are based on the inter-frame correlation among adjacent pictures. For the fast intra-mode-decision, we used the intra-mode of the most-correlated MB at the reference frame to encode the current MB and the stationary property of the current MB was used for the fast inter-mode-decision. The simulation results show that the proposed algorithms significantly reduced the computational complexity with a negligible loss of PSNR and a slight increase in bitrate.
AB - The H.264/AVC standard yields higher coding efficiency rates than other video coding standards. This is because it uses the rate-distortion optimization (RDO) technique, which selects the optimal coding mode and a reference frame for each macroblock (MB). In order to achieve this, the encoder has to encode a given block by exhaustively using all kinds of combinations (including different intra and inter-prediction modes). As a result, the computational complexity of video coding in H.264/AVC is extremely high. In this paper, two fast intra-/inter-mode-decision algorithms are proposed to reduce the complexity of the encoder. Both of these algorithms are based on the inter-frame correlation among adjacent pictures. For the fast intra-mode-decision, we used the intra-mode of the most-correlated MB at the reference frame to encode the current MB and the stationary property of the current MB was used for the fast inter-mode-decision. The simulation results show that the proposed algorithms significantly reduced the computational complexity with a negligible loss of PSNR and a slight increase in bitrate.
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UR - http://www.scopus.com/inward/citedby.url?scp=70350574077&partnerID=8YFLogxK
U2 - 10.1016/j.image.2009.08.001
DO - 10.1016/j.image.2009.08.001
M3 - Article
AN - SCOPUS:70350574077
VL - 24
SP - 803
EP - 813
JO - Signal Processing: Image Communication
JF - Signal Processing: Image Communication
SN - 0923-5965
IS - 10
ER -