AV TFT-LCD的显示效果和驱动因素密切相关。本文在对AV TFT-LCD的驱动机理论述后,分析研究了VCOM、VGH和VGL、DCLK、HSYNC和VSYNC、DE等各驱动信号对AV图像显示效果的影响行为,并提出了得到最佳显示效果的解决方案,对TFT-LCD的良好应用...AV TFT-LCD的显示效果和驱动因素密切相关。本文在对AV TFT-LCD的驱动机理论述后,分析研究了VCOM、VGH和VGL、DCLK、HSYNC和VSYNC、DE等各驱动信号对AV图像显示效果的影响行为,并提出了得到最佳显示效果的解决方案,对TFT-LCD的良好应用具有重要的参考意义与实用价值。展开更多
为了面向低延时的浅压缩场景提供更加适配的编码方案,并降低硬件实现成本,提出一种基于数字音视频编解码技术标准(Audio Video coding Standard,AVS)浅压缩算法的帧内预测模式优化以及快速率失真优化算法。该算法通过减少原有算法帧内...为了面向低延时的浅压缩场景提供更加适配的编码方案,并降低硬件实现成本,提出一种基于数字音视频编解码技术标准(Audio Video coding Standard,AVS)浅压缩算法的帧内预测模式优化以及快速率失真优化算法。该算法通过减少原有算法帧内预测所需的预测循环次数,以及打破各块之间的数据依赖关系等措施,克服了原始方案不适合硬件流水并行处理的限制,提高了编码的效率和稳定性,从而既保障了算法的视频质量,又使新的硬件实现方案更符合实际应用需求。实验结果表明,该算法优化方案能够有效改善实际面向低延时浅压缩场景下的编码效果。展开更多
AVS3 is the latest member of the family of video coding standards developed by Peng Cheng Laboratory,Peking University,as well as relevant enterprises and institutions.Capable of encoding video with approximately 40%b...AVS3 is the latest member of the family of video coding standards developed by Peng Cheng Laboratory,Peking University,as well as relevant enterprises and institutions.Capable of encoding video with approximately 40%bitrate savings for the same subjective quality compared to HEVC,AVS3 has been included in the recently published ETSI TS 101154 V2.8.1,Digital video broadcasting-Specification for the use of video and audio coding in broadcasting applications,which is another success after AVS3 codex was added to DVB’s media delivery toolbox.展开更多
文摘为了面向低延时的浅压缩场景提供更加适配的编码方案,并降低硬件实现成本,提出一种基于数字音视频编解码技术标准(Audio Video coding Standard,AVS)浅压缩算法的帧内预测模式优化以及快速率失真优化算法。该算法通过减少原有算法帧内预测所需的预测循环次数,以及打破各块之间的数据依赖关系等措施,克服了原始方案不适合硬件流水并行处理的限制,提高了编码的效率和稳定性,从而既保障了算法的视频质量,又使新的硬件实现方案更符合实际应用需求。实验结果表明,该算法优化方案能够有效改善实际面向低延时浅压缩场景下的编码效果。
文摘AVS3 is the latest member of the family of video coding standards developed by Peng Cheng Laboratory,Peking University,as well as relevant enterprises and institutions.Capable of encoding video with approximately 40%bitrate savings for the same subjective quality compared to HEVC,AVS3 has been included in the recently published ETSI TS 101154 V2.8.1,Digital video broadcasting-Specification for the use of video and audio coding in broadcasting applications,which is another success after AVS3 codex was added to DVB’s media delivery toolbox.