varying illumination meaning in English

变化的照度

This paper presents an algorithm of moving region detection based on chroma , which is able to cope with varying illumination and shadow problems , and refines the detection results with morphology , by marking each moving region in the binary image , the geometrical features parameters such as area , perimeter and form factor can be extracted , which lay the foundation for the analysis and track of moving target
摘要提出了一种基于色度的运动区域检测算法，利用像素的色度分量进行检测，克服了亮度变化和阴影的影响，并利用形态学方法对检测结果进行后处理，对处理后的运动区域进行标记，提取每个区域的面积、周长、形状因子等几何特征参数，为运动目标后期的分析和跟踪奠定了基础。
In regard to the deformed character of the license plate and the varied illumination and strong noise disturbance conditions , this paper put forward a character recognition method based on the artificial neural network which has many merits , such as highly anti - interference quality , highly recognition rate
针对车牌字符图像的变形、非均匀光照、强噪声干扰等条件，本文提出了一种基于神经网络感知机的字符识别方法，该方法具有网络结构简单，识别速度快，抗干扰能力强，识别率高等诸多优点。