瞬时位置 meaning in Chinese

instantaneous fix
instantaneous position
momentary position

The two color systems hsv and hls are used for two reasons . firstly , they have advantages over the traditional method in using the ratio of the color components as separate images of the same scenes so that they can avoid linear correlation to color components
本文选用hsv和hls两种常用颜色模型计算彩色时变图像的光流场，实验结果表明该方法能得到相当精确的瞬时位置速度且适用于各种运动。