Adaptive Interpolation-Based Divide-and-Predict Intra Coding for H.264/AVC

Piao, Yinji; Park, HyunWook

doi:10.1109/tcsvt.2010.2090423

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…In the results, Y denotes the luminance component, and U and V indicate the chrominance components. For evaluation of the coding performance, the proposed method, which consists of the adaptive coding order and the multiple reference sets, was compared to the sampling-based intra prediction method [11,12]. As the performance of these sampling-based prediction methods was reported on H.264/AVC, I implemented it on HEVC and re-optimized most of the parameters.…”

Section: Resultsmentioning

confidence: 99%

“…Table 5. Coding performance of (a) the sampling-based intra prediction method [11,12] and (b) the proposed method. Table 6 represents the detailed coding performance of the adaptive coding order.…”

Section: Resultsmentioning

confidence: 99%

“…In addition to the simple increase in the number of the angular directions, there have been several studies on efficient intra coding methods [6][7][8][9][10][11][12][13][14]. Intra prediction, in the method proposed in [6], is performed through template matching in reconstructed pixels.…”

Section: Introductionmentioning

confidence: 99%

“…It skips intra prediction mode bits when the correlation of the neighboring boundary pixels is strong. In [11], a sampling-based intra prediction method was introduced that divides an original image into two sub-images through horizontal or vertical sampling. One sub-image is first compressed, and then the other sub-image is predicted from the reconstructed sub-image.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhanced Intra Prediction Based on Adaptive Coding Order and Multiple Reference Sets in HEVC

Lee

2019

Electronics

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High Efficiency Video Coding (HEVC) is the most recent video coding standard. It can achieve a significantly higher coding performance than previous video coding standards, such as MPEG-2, MPEG-4, and H.264/AVC (Advanced Video Coding). In particular, to obtain high coding efficiency in intra frames, HEVC investigates various directional spatial prediction modes and then selects the best prediction mode based on rate-distortion optimization. For further improvement of coding performance, this paper proposes an enhanced intra prediction method based on adaptive coding order and multiple reference sets. The adaptive coding order determines the best coding order for each block, and the multiple reference sets enable the block to be predicted from various reference samples. Experimental results demonstrate that the proposed method achieves better intra coding performance than the conventional method.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced Intra Prediction Based on Adaptive Coding Order and Multiple Reference Sets in HEVC

Lee

2019

Electronics

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“…I N A video sequence, the frames contain both temporally and spatially redundant information. The temporal redundancy is usually removed by motion estimation (ME) and motion compensation (MC), while the spatial redundancy is removed by color space conversion [1], predictive coding [2]- [4] or transform coding [5]. The efficiency of transform coding is due to the fact that most of the block energy is compacted into only a few transform coefficients in the frequency domain.…”

Section: Introductionmentioning

confidence: 99%

Efficient H.264/AVC Video Coding with Adaptive Transforms

Wang

Ngan

2014

IEEE Trans. Multimedia

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Transform has been widely used to remove spatial redundancy of prediction residuals in the modern video coding standards. However, since the residual blocks exhibit diverse characteristics in a video sequence, conventional transform methods with fixed transform kernels may result in low efficiency. To tackle this problem, we propose a novel content adaptive transform framework for the H.264/AVC-based video coding. The proposed method utilizes pixel rearrangement to dynamically adjust the transform kernels to adapt to the video content. In addition, unlike the traditional adaptive transforms, the proposed method obtains the transform kernels from the reconstructed block, and hence it consumes only one logic indicator for each transform unit. Moreover, a spiral-scanning method is developed to reorder the transform coefficients for better entropy coding. Experimental results on the Key Technical Area (KTA) platform show that the proposed method can achieve an average bitrate reduction of about 7.95% and 7.0% under all-intra and low-delay configurations, respectively.

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Motion adaptive video coding scheme for time‐varying network

Bhuyan

Chakraborty

2013

Int J Communication

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SUMMARYAdaptive video coding algorithms can encode a video stream dynamically on the basis of the amount of bandwidth available in a network. In this paper, a novel approach for adaptive video coding based on look-up tables has been proposed. On the basis of the network conditions, the proposed codec estimates quantization parameter (QP) and also the spatial resolution for a group of pictures from the look-up table. Then, QP for each frame is estimated on the basis of the motion content in each frame. More motion leads to more burden of bits while encoding the motion vectors. Also, quantization noise is less prominent in high-motioned frames than frames possessing low motion information because of the temporal masking phenomenon of the human eyes. So, the main trick of the proposed scheme is to assign higher QP to the frames having higher motion than those having less motion. This method also reduces the requirement of excess bits for encoding of motion vectors having higher motion content. Additionally, QP is adjusted on the basis of the buffer availability in order to avoid bit loss error. Experimental results show the efficacy of the proposed codec.

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Adaptive Interpolation-Based Divide-and-Predict Intra Coding for H.264/AVC

Cited by 8 publications

References 16 publications

Enhanced Intra Prediction Based on Adaptive Coding Order and Multiple Reference Sets in HEVC

Enhanced Intra Prediction Based on Adaptive Coding Order and Multiple Reference Sets in HEVC

Efficient H.264/AVC Video Coding with Adaptive Transforms

Motion adaptive video coding scheme for time‐varying network

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