Efficient H.264 intra prediction scheme based on best prediction matrix mode

Hamdy, Sara; Ibrahim, Basil; Abdelhalim, C. M. B.

doi:10.1109/icecco.2013.6718303

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…The absolute difference module is responsible for calculating the absolute difference values. Finally, the comparator module finds the minimum value of the absolute differences and then selects a value between (upper, left, upper-left corner, and average) that corresponds to this minimum and stores it in the best prediction matrix [24].…”

Section: : End Formentioning

confidence: 99%

Performance evaluation of a new efficient H.264 intraprediction scheme

Hamdy¹,

Ibrahim²,

Osman³

2016

Turk J Elec Eng & Comp Sci

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Abstract:The paper presents a new efficient H.264/AVC 4 × 4 intraprediction scheme. The new prediction scheme is based on the best prediction matrix mode. The main idea behind the new prediction scheme is to combine the most usable intraprediction modes, {vertical -horizontal -DC} , into a new efficient prediction mode. The new prediction scheme is implemented using VHDL and hence it uses the full advantages of inherent parallelism in the hardware. We evaluate the performance of this prediction scheme in terms of compression ratio, peak signal to noise ratio, and bit rate using seven video sequences. Moreover, we analyze the power consumption, the delay, and FPGA area utilization of the implemented H.264 encoder after utilizing the new prediction scheme. The performance measures as well as the area and power consumption are compared to other best known prediction algorithms.

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Section: : End Formentioning

confidence: 99%

Performance evaluation of a new efficient H.264 intraprediction scheme

Hamdy¹,

Ibrahim²,

Osman³

2016

Turk J Elec Eng & Comp Sci

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“…Intra prediction is performed by using reconstructed pixels which are obtained from previously coded adjacent in order to cover more directional information existed in images, the intra prediction has 17 prediction modes: nine for the intra 4x4 blocks, four for the intra 8x8 chroma blocks and four for the 16x16 blocks [9], and all processing blocks are produced based on the boundary reconstructed pixels of neighboring blocks. Fig.…”

Section: Intra Prediction Modementioning

confidence: 99%

A Research of Intra Prediction Coding with Variance of Prediction Mode Number

Zheng

Wang

et al. 2015

AMM

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Intra prediction is a key step in H.264/AVC to improve the coding performance with the idea that removing the directional redundancy among neighboring blocks. In order to cover more directional information existed in the image frames, there are usually many prediction modes can be selected in the state-of-the-art coding frameworks, but more bits are also needed to encode the prediction mode index information, then how to achieve the maximum overall bit-rate reduction became a problem. In this paper, 16 kinds of prediction modes are adopted by considering the direction information for 8x8 image blocks. Through calculating the bit-rate both for the mode index and residual image under different number of prediction modes, we obtain the most suitable prediction mode number relatively from the graphs. Experimental results show that, with the increase of prediction mode number, the residual information decreases obviously, and the sum of residual information and prediction mode index information also decreases but levels off after reaching a certain mode number, even has an obviously rising trend.

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“…It should be noted that the best prediction matrix is an excellent substitute of the standard prediction modes and we will rely on it only to achieve the prediction. Further details regarding the proposed algorithm can be found in [9,10]. As shown in Table II the preliminary findings have shown that the (BPMM) had achieved a leading compression ratio with an average of 33.56%.…”

mentioning

confidence: 95%

“…More details on (BPMM) are covered in the next section. Our proposed technique had gone through a series of three main phases as follows: phase I the proposal stage in which the BPMM achieved better compression ratios, bit rates, and PSNR depending on improving the Intra prediction scheme of H.264 and reducing the residual information by selecting best values for each pixel [9,10].…”

Section: Introductionmentioning

confidence: 99%