.../R2，D2=S2/R2，可见球面对球心所张的立体角Ω=4πr2/r2=4π 单位：球面度（sr） 符号表示：Ω 发光强度（Luminance Intensity） 光源在给定方向上的发光强度是该光源在该方向的立体角元dΩ内传输的光通量dΦ与该立体角元之 商，即 I = dΦ/dΩ 单位：坎德拉（...
基于68个网页-相关网页
Photometers are specifically designed to measure emitted, reflected or transmitted light in photometric terms of luminous flux, luminance, illuminance or luminous intensity.
光度计是专门用于测量发射，反射或透射光的光通量，亮度，照度或发光强度等。
First, after the foreground is retrieved, the luminance test is used to reduce part the object region that has higher pixel's intensity in the foreground than the corresponding background.
算法首先对提取出来的前景区域进行亮度测试，去除前景区域中像素亮度值高于对应背景区域的区域。
应用推荐