嵌入式在线视频帧间信号自适应压缩方法

Adaptive Compression Method of Embedded Online Video Inter Frame Signal

针对使用传统压缩方法对处于播放状态的视频进行压缩,得出的压缩结果存在误码率高、占用空间大的问题,提出了嵌入式在线视频帧间信号自适应压缩方法。设置H.264/AVC视频编码标准作为此次压缩方法的运行约束,提取播放状态下的在线视频关键帧,并根据帧间相关性进行帧间分类,结合帧间信号的分类结果,获取在线视频运动的估计结果。安装自适应压缩编码设备,并设置自适应门限,将运动估计结果和提取的视频关键帧输入到编码器中,即可实现在线视频帧间信号的自适应压缩。经过仿真测试与验证得出结论,与传统压缩方法相比,设计的自适应压缩方法的误码率有所降低,且视频压缩结果的占用空间明显下降。

Traditional methods compress the playing state video,resulting in high bit error rate and large space occupation.Therefore,this paper proposes an adaptive compression method for embedded online video inter frame signal.H.264/AVC video coding standard was set as the operation constraint of this compression method.The key frames of online video in playing state were extracted.The inter frame was classified by the inter frame correlation.The online video motion estimation results were obtained via combining with the classification results.The adaptive compression coding device was installed and the adaptive threshold was set.The motion estimation results and the extracted video key frames were input into the encoder,thus the adaptive compression of on-line video inter frame signals was realized.The simulation results show that the adaptive compression method designed in this paper has low bit error rate and small occupied space.