Motion Vector prediction forms a key part of video coding technique in that it directly affects the bitrate and performance of motion estimation.
运动矢量的预测是视频编码技术中的一个重要组成部分,它直接关系到运动估计的精度和码率大小。
For resolving the problem better, this paper presents an improved diamond search algorithm based on motion vector prediction, and it can efficiently improve the performance of video compression.
为更好的解决这一问题,论文提出一种基于预测性运动向量的菱形搜索方法,有效的提高了视频压缩的性能。
Prediction usually involves side data, such as a signal telling the decoder a motion vector to use for said motion compensation.
预测通常与边界数据有关,例如用于运动补偿的运动矢量。
Firstly a motion vector is searched for each pixel in the interpolated frame using the block-matching search method of linear prediction.
该算法首先采用了线性预测块匹配搜索算法来估计内插帧中每一个象素的运动矢量;
Designed the inter-frame decoding IP soft-core, including the motion vector generation module, prediction processing modules and interpolation modules.
详细设计了帧间解码IP软核,包括运动矢量生成模块、预测处理模块和插值模块。
Based on prediction of searching starting-point and gradient diamond-shaped searching technique, the paper proposes a motion vector field self-adaptive searching algorithm (MVFSAS).
在基于搜索起点预测和梯度式菱形搜索方法的基础上,提出了一种运动矢量场自适应搜索算法(MVFSAS)。
This algorithm improves search performance and reduces search steps compared with Diamond Search by prediction motion vector.
该算法通过预测运动矢量较快地搜索到匹配块,减少了搜索次数,提高了搜索效果。
Combined with Unrestricted Motion Vector mode advanced prediction mode can be used to improve the prediction performance and reduce the "blocking" effects.
高级预测模式可与无限制运动向量模式一起使用以提高预测性能及降低方块效应。
When the matching error based on the prediction of the motion vector is between two SAD thresholds, a search restricted in a small window is used to replace the original motion estimation.
当基于预测运动矢量的匹配误差介于两sad阈值之间时,用小窗口搜索代替运动估计。
A prediction error signal and a motion vector for a current block are transmitted, describing the location of the predictor block in the reference picture.
传输当前块的预测误差信号和运动向量,这描述了参考画面中预测器块位置。
During an encoding mode, a stream of data blocks is received and at least one motion vector and one motion compensation prediction value for each macro-block are generated.
在编码模式期间,接收数据块流并为每个宏块产生(12)至少一个运动矢量和至少一个运动补偿预测值。
During an encoding mode, a stream of data blocks is received and at least one motion vector and one motion compensation prediction value for each macro-block are generated.
在编码模式期间,接收数据块流并为每个宏块产生(12)至少一个运动矢量和至少一个运动补偿预测值。
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