色差信号

本文讨论了BVV-5PS等是怎样实现色差信号时分复用的。

This paper discusses how to complete compressed time division multiplex of chrominance signal in BVV-5PS etc.

从每个彩色信号中减去该第二亮度信号以生成第二色差信号。

The second luminance signal is subtracted from each of the color signals to produce second color difference signals .

而且，将该第二亮度信号添加至每个放大的色差信号以生成输出彩色信号。

Further , the second luminance signal is added to each of the amplified difference signals to produce output color signals .

由于描述彩色光最直接的色度参数计算涉及的处理方法繁杂，目前国际上一般采用2个色差信号来表示色度参数。

In order to simply the calculation procedure , it is general to use two color different signals to represent chroma parameters .

该兼容系统拓宽了视频传输信号的色域范围，同时具有色差信号对的压缩系数小而接近，利于抵御传输干扰，重显色差小的优势。

These coordinates extend the gamut range of video signals with the advantage of small and close compression parameters for chroma signals , being robust to transportation disturbance and small reproduction difference .

本文从理论上分析了目前较常见的用色差信号来产生硬色键信号的原理及其存在的缺点，进而提出直接用三基色信号产生键信号的设想。

This paper firstly theoretically analyses the principle and disadvantages of chroma - key signal That is produced from colour difference signal , and then suggests that keying signal is produced from RGB signal .

根据最新光电感应技术的发展，选择适当的元件及相关电路进行优化设计，从而增强了系统获取低色差信号的能力。

According to the newest photoelectricity induction technology development , chooses the suitable part and the correlation electric circuit carries on the optimized design , thus strengthened the system to gain the low difference signal the ability .

本课题是对现有的彩色凹印机自动套准系统进行优化设计，提高对低色差信号的识别和判断，从而提高系统的灵敏度和精确度。

This topic is carries on the optimized design to the existing offset press Automatic Register Control System , enhances to the low color difference signal recognition and the judgment , thus enhances the system the sensitivity and the precision .

但是色差信号物理含义不如色度参数中的色调和饱和度直观，为此，依据色度图定义，本文通过分析彩色光的色度参数计算方法，建立了一个通用的3要素计算程序。

However , color difference signal is not as intuitive as hue and saturation . According to the definition of chroma diagram , the paper presented a generalized calculation program of three factors by analyzing the calculation method of colorama 's chroma parameter .