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Improved Intra Prediction Mode-decision Method

机译:改进的帧内预测模式决策方法

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摘要

An improved intra-prediction method for AVS-M, which is developed by AVS (Audio Video Coding Standard Working Group of China) to meet the requirements of multimedia applications in next-generation mobile communications, is proposed in this paper. Utilizing the spatial and temporal correlation of the video sequences, the proposed method only processes a portion of normative 9 intra-prediction modes to decide the best mode, therefore, speeds up intra prediction with some degradation in the coding gain. Moreover, a complexity-scalable technique is presented to control the complexity of ultra prediction, by which the video coder is matched to the limited computational resource of communication devices. The proposed methods are verified. The results show that the improved mode-decision method can significantly save encoding time at expense of little coding loss and the complexity-scalable technique works robustly and accurately. In addition, the proposed method also can be applied to other standards, such as H.264.
机译:本文提出了一种改进的AVS-M帧内预测方法,该方法是AVS(中国音频视频编码标准工作组)开发的,以满足下一代移动通信中多媒体应用的需求。利用视频序列的空间和时间相关性,所提出的方法仅处理规范的9种帧内预测模式的一部分来确定最佳模式,因此,加速了帧内预测,​​但编码增益有所下降。此外,提出了一种复杂度可缩放技术来控制超预测的复杂度,通过该技术,视频编码器与通信设备的有限计算资源相匹配。所提出的方法得到了验证。结果表明,改进的模式决策方法能够以较少的编码损失为代价,显着节省编码时间,并且复杂度可扩展技术可靠且准确地工作。此外,所提出的方法还可以应用于其他标准,例如H.264。

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