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首页> 外文会议>IEEE International Conference on Image Processing >SCENE-BASED LOW DELAY HEVC ENCODING FRAMEWORK BASED ON TRANSPARENT COMPOSITE MODELING
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SCENE-BASED LOW DELAY HEVC ENCODING FRAMEWORK BASED ON TRANSPARENT COMPOSITE MODELING

机译：基于透明复合模型的现场基于低延迟HEVC编码框架

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摘要

To improve the rate-distortion (RD) performance of low delay (LD) High Efficiency Video Coding (HEVC) encoding while enabling scene-based non-linear editing feature (NLEF), in this paper, we present a new scene-based LD HEVC encoding framework in which scene change (SC) detection and coding are conducted jointly. A frame in a sequence to be encoded is deemed a SC if there is a sudden change in the residual energy. SCs are detected using the residual image parameters identified from the newly proposed Laplacian Transparent Composite Model (LPTCM). When a SC is detected, it is designated as an I frame; the quantization parameters for this frame and its subsequent frames before the next SC are determined. Compared to the default LD configuration, experimental results show that an average gain of 0.24 dB in RD performance and reduced overall encoding time are achieved while providing the scene-based NLEF.
机译：为了提高低延迟（LD）高效视频编码（HEVC）编码的速率 - 失真（RD）性能，同时启用基于场景的非线性编辑特征（NLEF），在本文中，我们提出了一种基于场景的LD HEVC编码框架，其中开场改变（SC）检测和编码是共同进行的。如果剩余能量突然改变，则待编码的序列中的帧被认为是SC。使用从新提出的Laplacian透明复合模型（LPTCM）中识别的残差图像参数检测SC。当检测到SC时，它被指定为I帧;确定该帧的量化参数及其在下一个SC之前的后续帧。与默认LD配置相比，实验结果表明，在提供基于场景的NLEF的同时，实现了RD性能下降0.24dB的平均增益和整体编码时间。

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