光照归一化的特征点提取

The Research of Feature Extraction Based on Unitary of Illumination

常规的图像特征提取方法提取的特征一般不具备稳定性，表现在不同光照条件下对同一景物拍摄的图像提取的特征的位置是不同的，这将严重影响三维景物分析的精度。本文以点特征提取为例，对光照归一化的特征点提取方法进行了探讨，并给出了实验结果。

The image characteristics obtained by normal feature extraction generally have no stability appearing as variant positions on different intensity of illumination for the same scenery and analysis precision is seriously affected. This paper discusses the methods of extracting feature points based on unitary of illumination, also gives the experimental result.