macroblock造句
例句与造句
- Fast inter mode decision algorithm based on the intrinsic complexity of the macroblock
基于图像细节程度的快速帧间模式选择算法 - Utilization and redetermination of macroblock type in video spatial definition downscale transcoder
转换编码中宏块编码模式的利用及重新判断 - It has a macroblock - level pipelined structure which consists of mv predictor unit , reference fetch unit and pixel interpolation unit
该结构由3个流水阶段组成： mv预测模块参考数据获取模块分数像素插值模块。 - 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。 - An adaptive macroblock - group coding algorithm for progressive and interlaced video . in proc . iscas 2004 , vancouver , may 2004 , pp . iii - 969 - 972
与h . 264中的mbaff算法的性能相比，提出的ambaff算法可以得到0 . 16db的平均编码增益。 - It's difficult to find macroblock in a sentence. 用macroblock造句挺难的
- The motion vector of adjacent macroblocks ( spatial or temporal ) is used as the initial searching vector of the current macroblock , to search a multistage in an involute - like scanning
在大多数情况下，图像中运动的变化在图像内和图像间往往是连续的。 - Third , the other key algorithms of transcoding in dct domain was introduced , including : motion compensation in dct domain , the choosing of macroblock pattern and rate control
而后,介绍了dct域转码中的其它关键算法,包括: dct域的运动补偿算法,宏块模式的选择,码速控制算法。 - This dissertation presents the research on the fast motion compensation algorithm with the shared macroblock information in the dct domain and rate control algorithm with dct coefficients
本文主要研究在dct域内基于宏块公共信息的运动补偿快速算法和利用dct系数进行码率控制算法。 - A inter - frame error concealment algorithm based on motion estimation is proposed in this dissertation , the motion vectors and coding mode can be rebuilt , it can be applied in any frame modes and macroblock modes
本文提出了基于运动估值的帧间预测错误隐藏算法，能对运动矢量和编码模式的进行有效重建，适应各种情况的帧间错误隐藏。 - And the retrieval algorithms of mismatched macroblock for dct - domain requantization trancoder are introduced in the chapter . many simulation results testified that the motion - compensation only for p - pictures transcoding solution is a better compromise between the complexity and video quality
大量仿真结果证实，本文提出的省略b帧运动补偿转码器是视频质量和运算复杂度的一种较好的折衷算法。 - In order to solve them , a new motion estimation algorithm based on macroblock partition is proposed in this paper , and a new rate control policy is adopted . simulations show that the proposed algorithms can improve system coding efficiency and image quality
为了有效地对块效应进行消除，本文提出了一种新的宏块预测分区运动估值算法并采用了一种新的码率控制策略，实验结果表明改进算法在图像质量上优于原算法。 - By integrating motion compensation and recompose frame , classifying the integration according to the mode of macroblock coding and motion compensation integration , and combination in another way to achieve to improve the performance of decoder
在对idct优化过程中提出了一种结合vlcd (变长码解码)和iq (反量化)解码过程的优化方法；把运动补偿和图像重组过程结合在一起，按图像编码方式和运动补偿方式进行分类组合，实现解码性能提高。 - According to the complexity threshold , we auto - adaptatively adjust the qp . we use the smaller qp to quantify the more complicated macroblock and use the bigger qp to quantify the less complicated macroblok . the proposed algorithm can improve the h . 264 standard algorithm by a rate control algorithm on macroblock layer
在宏块层利用了现有mad值表示宏块复杂度,进一步根据宏块的复杂度阈值自适应地调整量化参数qp ,对复杂度高的宏块采用较小的qp值,进行精细量化;对复杂度低的qp值采用较大的qp值,以节约比特数。 - In packet based wireless video communications , when best band distribution , not only source distortion should be considered , but also channel distortion caused by channel errors . the existing macroblock - layer rate control schemes calculates quantization parameters of all macroblocks ( mb ) in a frame in a raster scan order , and then encodes the mbs in the same order . actually , the quantization distortion is heavily dependent upon the coding order of mbs
在基于包的无线视频传输中，最佳带宽分配时，不仅要考虑信源编码失真，也要考虑由于信道差错引起的信道失真；已有的宏块层码率控制算法以矩阵扫描的顺序计算一帧中所有宏块的量化参数，事实上量化失真与宏块的编码顺序有很大关系，改变宏块的编码顺序，使复杂的宏块分配到更多的比特数，显然能大大提高编码效率。 - Compared with the traditional pixel domain video transcoding , the transcoding from hdtv to sdtv in the dct domain , not only avoids the dct and idct transforms , but also avoids motion estimation , the most computation costing process , by making full use of the macroblock motion vector information from the input hdtv stream to construct the motion vector for the according sdtv macroblocks . it ’ s helpful to achieve the hdtv to sdtv video transcoding in the real time
Dct域hdtv至sdtv视频转码,与传统的像素域转码相比,不仅避免了dct 、 idct运算,还通过利用输入hdtv码流中宏块的运动矢量信息直接构造转码后sdtv相应宏块的运动矢量,避免了运算量极大的运动估计过程,有利于hdtv至sdtv实时转码的实现。
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