luma是什么意思，luma怎么读，luma的意思是：卢马

luma怎么读，luma的音标和真人发音

n.卢马

De-interlacing system is the hard core of post video processing system , it is made up by 5 sub-modules : video data input , motion detect , luma interpolation , chroma interpolation , video data output .: 去隔行系统是视频后处理系统中的核心部分，主要分为五个子模块：视频数据输入、运动检测、亮度插值、色度插值、视频数据输出。

In this paper , a fast intra-prediction mode selection algorithm with different criterion based on RDO ( Rate distortion optimization ) is proposed using the mode selection relation of chroma block and luma block and the relation of luma 4 × 4 block and luma 16 × 16 block .: 针对这种多模式选择，为了加快编码速度，利用色度块和亮度块以及亮度4×4和16×16块模式选择之间的关系，提出一种基于RDO（RateDistortionOptimization）的不同判决依据的快速帧内预测模式选择算法。

This work first detects the gradient of luma pixel in I frame by Sobel operator and establishes edge direction histogram for each 4 × 4 block , hereby gets the most probable intra prediction mode and corresponding reconstructed block , finally obtains the residual picture which is close to the actual coding residual .: 本文首先用Sobel算子检测Ⅰ帧亮度像素的梯度，建立4×4块的边缘方向直方图，得到每个4×4块最可能的帧内预测模式和相应重构块，最终获得与实际编码相近的残差图像。

In the intra mode , we improved the luma and chroma mode decision without scarify the quality of the image and the computation is reduced . In the inter mode , we introduce an improved prediction algorithm of half-pixel and a quarter-pixel motion vector.This algorithm reduce the complexity and faster the transcoding speed .: 在帧内模式中，对亮度和色度的模式选择方法进行改进，在不牺牲图像的质量的基础上，有效的减少了计算量；在帧间模式中，提出了一种改进的二分之一像素和四分之一像素运动矢量的预测算法，减少了运算复杂度，加快了转码的速度。

It uses the method that the mode selections between luma prediction and chroma prediction are separated . And it utilizes the histogram and calculates the DCT coefficient for each 4 × 4 block to find out the direction of texture so as to avoid unnecessary computations and sort out the best predict mode quickly .: 该算法采用了亮度色度独立预测的方法，利用宏块直方图以及4×4块DCT变换域的系数找出图像纹理的方向，快速选择出最优预测模式，从而降低了计算量。

This algorithm based on the directional features of luma block could get the best intra luma prediction mode by rate-distortion cost calculation among a few of more probable prediction modes which could be obtained by a little of simple computation . Given the characteristics of chroma prediction mode decision process , the computation of SATD instead of the rate-distortion cost is used to selects the best intra chroma prediction mode at the same time .: 该算法基于亮度块的方向特性，通过一些复杂度不大的计算，选择少数几个可能性较大的预测模式进行率失真代价计算，得到最佳亮度预测模式，并根据色度预测模式选择过程的特点，以SATD计算取代率失真代价计算选择最佳色度预测模式。

The operational principle of the correction system and the structure composition of the control device based on the large-scale programmable logic device are expanded on in this paper.The bottom to top modular method makes brief of the design process and improves the flexibility of the correction system.The final results show that the Luma and chroma of the LED display had a better consistency after the correction system.The display performance and the visual effect have been substantially improved .: 文中详细地阐述了逐点校正系统的工作原理和以大规模可编程逻辑器件为架构的LED显示屏控制器的结构组成。采用由底而上的模块化设计方法简化了系统的设计过程并提高了系统的灵活性。测试结果表明，经过该系统对LED显示屏进行校正后，LED显示屏的亮度和色度的一致性有了明显的提高，显示性能和视觉效果得到了大幅度提升。

A Perceptual Coding Method Based on the Compression of Luma Coefficients: 基于人眼感知特性的亮度系数压缩方法

Face Contour Extraction Algorithm Based on Skin Luma and Depth Information: 基于肤色及深度信息的人脸轮廓提取

luma相邻词汇

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