选用码率失真最优的宏块模式。
选用需要比特最少的宏块模式。
大大减少整个宏块滤波需要的周期数。
Greatly reduce the needs of the entire macroblock filtering cycles.
滤波完成一个宏块的周期数为128。
Complete processing of a macroblock filtering cycles to 128.
算法优化了宏块帧间模式选择算法的流程。
The algorithm optimizes the flow of inter mode of macro-block decision algorithm.
研究了基于宏块置乱的视频数据加密技术。
This paper presents a video encryption approach by MacroBlock permutation.
然后，采用宏块层码率控制策略来分配目标比特；
Secondly, macroblock layer rate control strategy is used to distribute target bits.
利用时空掩盖效应计算视频帧的复杂度与宏块的感知度。
The spatial and temporal masking effect is used to compute the frame complexity and the MB focus.
然后根据总结的特点提出一种波浪式的灵活宏块排序方法。
Then made a wave-like sort of flexible approach macroblock which have summed up the characteristics.
提出了一种基于宏块信息的快速MPEG压缩视频场景分割算法。
A fast algorithm for MPEG video segmentation based on macroblock (MB) types was presented.
算法中利用的压缩参数主要有帧类型、宏块类型、DC系数、运动矢量。
Compressed parameters include type of frame, type of macroblock, DC coefficients, and motion vectors.
基于降低分辨率的视频代码转换模型，对运动矢量和宏块类型进行了精简。
The motion vectors and macroblock type during video transcoding based on resolution reduction are refined in this paper.
说明：一种具有在场和帧图中出现所有宏块类型和子块类型的编码比特流。
Specification: One kind of bitstream which contains all types of Macroblocks and blocks in the frame and the field.
基于MPEG-1的模拟结果表明了基于宏块分类的运动估计法之有效性。
Simulation result based on MPEG 1 shows the effectiveness of the motion estimation method based on macroblock′s classification.
说明：一种编码比特流，其每个条带只包含一行宏块，而且不包含跳过宏块。
Specification: one kind of bitstream in which each slice only contains one line of Macroblock, but does not contain skipped Macroblock.
同时，考虑到前景和背景的差异以及块效应，提出了宏块级量化的调整方法。
Moreover, we present the adjust method for macroblock quantization parameters considering of the difference of foreground and background and blocking effects.
对视频传输过程中的失真进行分析后，提出了基于宏块重要性测度的重同步新方法。
The video transmission distortion was analyzed and a new macroblock importance estimation based resynchronization approach was proposed.
在这种模式中，上方像素块中的四个底部像素被垂直拷贝至经过帧内编码的宏块中。
In this mode, four bottom pixels from the block above are copied vertically into part of an intra-coded macroblock.
随后，通过拉格朗日优化算法，找到了平衡编码量和失真大小的宏块的最佳编码模式。
Then we calculate the Lagrangian cost to balance the rate and distortion, by which we can find the best encoding mode.
帧层次主要计算为这一帧分配的目标字节数，宏块层次主要计算每一个宏块的量化参数。
The QP (Quantization Parameter) of each macroblock is calculated in macroblock-layer, the target bits of each frame is allocated in frame-layer.
与中央宏块使用相同运动矢量的宏块被视为脸的部分，以较小的量化参数对其进行量化。
A macro block using the same motion vector with the central macro block is regarded as a part of the face and is quantified with a smaller quantization parameter.
“自上而下”和“自下而上”宏块划分模式选择算法首先作为编码器的快速算法被提出。
The top-down and bottom-up mode selection schemes were first introduced as fast mode decision algorithms for video encoders.
此判别法表明，相邻编码帧宏块条码率的频域互相关能够有效反映图像活动性变化的特点。
The correlation of adjacent slices bitrates in frequency domain can effectively reflect the activity of the motion pictures.
在此基础上分析了宏块行并行处理技术的原理和工作流程，估算了传输过程中的数据流量。
The principle and working flow of macroblock line parallel process technology are analyzed as well as Data flux to be transferred.
提出了基于宏块空间复杂度的宏块类型判断算法，有效地降低了视频压缩算法的计算复杂度。
Macro Block (MB) type judging algorithm is proposed based on MB′s space complexity. It reduces effectively the computational complexity of the video compression.
主要有两种做法：适用于所有的系数或只是其中一些部分的基于帧的偏移量，和宏块级的偏移。
There are two ways in which this is primarily done: frame-based offsets that apply to all coefficients or just some portion of them, and macroblock-level offsets.
提出了一种快速帧间模式选择算法，通过利用宏块的运动特性，有效跳过不必要的帧间预测模式。
The proposed algorithm can effectively skip unnecessary inter-prediction modes by using the properties of motion of the macroblock.
本文给出了一种基于宏块的差图像直方图法，并根据图像复杂度在编码单元之间合理分配比较率。
First of all, a macroblock-based histogram of difference is introduced, and bits are allocated rationally among coding units according to image complexities.
论文重点讨论了无线网络中基于TMN11的改进型帧率控制算法及改进型宏块层码率控制算法。
This article discusses the modified frame rate control algorithm based on TMN11 and the modified macroblock-layer rate control algorithm.
论文重点讨论了无线网络中基于TMN11的改进型帧率控制算法及改进型宏块层码率控制算法。
This article discusses the modified frame rate control algorithm based on TMN11 and the modified macroblock-layer rate control algorithm.
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