An Early Intra Mode Skipping Technique for Inter Frame Coding in H.264 BP

Mithun, U.

doi:10.1109/icce.2007.341526

Cited by 5 publications

(6 citation statements)

References 3 publications

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“…In the experiment, selective intra mode decision method (SIMD) 32 and intra mode skipping technique (EIMST) 33 are compared with the proposed algorithm as shown in Table 2. It is seen that the proposed method can generate better perform than the other methods.…”

Section: Proposed Intra Prediction Mode Decisionmentioning

confidence: 99%

Fast intra prediction mode decision for H.264/AVC video coding

Kao

2013

The Imaging Science Journal

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Intra coding is used for reducing the spatial redundancy in video coding. H.264 supports several macroblocks of predictions for intra coding such as luma block four 16616 modes, nine 464 modes and chroma block four modes, which significantly improve intra coding efficiency, but increase the encoding complexity. In order to select the best mode, we need to calculate the cost of the various modes. In this paper, a fast intra prediction mode decision for H.264/AVC video coding is proposed. Based on Laplacian, this intra prediction mode decision detects edges and selects the best mode for the block. This mode decision can shorten the time to reduce the encoding time. The experimental results show that the proposed algorithm achieves an encoding time saving of 70% on average.

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Section: Proposed Intra Prediction Mode Decisionmentioning

confidence: 99%

Fast intra prediction mode decision for H.264/AVC video coding

Kao

2013

The Imaging Science Journal

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“…However, the time of this algorithm on average was reduced by only 10-16% for the entire coding and 21-31% for the intra-prediction. For the Mithun and Gupta algorithm [3], even though the entire intra-prediction time on average was reduced by about 50%, our proposed algorithm outperforms this algorithm in the time saving. Figure 2 shows the RD curve for the QCIF "News" sequence and the CIF "Mobile" sequence with QP values of 20, 24, 28, 32, and 36.…”

Section: Performance Evaluationsmentioning

confidence: 99%

“…In H.264/AVC, the detection of shot boundaries and key frames can be understood as a process that extracts the temporal correlation between a 16 × 16 block of the current frame and a reconstructed 16 × 16 block based on motion estimation from the reference frames. Hence, information theory may provide an approach to skip the intra-predictions in inter-frame coding by using the temporal correlation between two blocks, as in the technique of Mithun and Gupta [3].…”

Section: Proposed Fast Mode Decision Algorithmmentioning

confidence: 99%

“…For evaluation, the proposed algorithm, the previously proposed Kim et al's algorithm [2], the previously proposed Mithun et al's algorithm [3], and the full search were simulated on QCIF and CIF sequences in the JM10.1 reference software. And all algorithms are compared to the full search.…”

Section: Performance Evaluationsmentioning

confidence: 99%

“…Otherwise intra-prediction is skipped. Mithun and Gupta proposed an early intra-mode skip technique that exploits temporal information extracted from the SAD value of the current frame MB and the reference frame MB [3]. Even though these algorithms reduce the complexity of intra-prediction, greater reduction is still possible because approximately 95% of intra-prediction is unnecessary in inter-frame coding.…”

Section: Introductionmentioning

confidence: 99%

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Selective intra-prediction Skip Algorithm for inter-frame coding in H.264/AVC

Jeong

Choe

2009

IEICE Electron. Express

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Abstract:Inter-frame coding using inter-and intra-predictions plays an important role in achieving high compression efficiency in H.264/AVC. However, most intra-predictions are unnecessary, since the intra-coding mode occupies less than 5% of the overall coding in interframe coding. In this paper, we propose an intra mode skip algorithm for inter-frame coding in H.264/AVC as a means of obtaining fast intra mode decision. The algorithm uses the joint entropy (JE) and mutual information (MI) to extract the temporal correlations between the current block and the reconstructed block based on 8 × 8 motion estimation. All or part of the intra-prediction search is omitted by using JE and MI. Experimental results show that the proposed algorithm is capable of reducing the overall coding time by 15-37% and the overall intra-prediction time by 32-78% compared to full search of the reference software, with negligible loss of quality.

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