关键词: 阴影检测与消除, 颜色不变性, 阴影高斯模型, 相似区域的划分

Abstract: A new approach for shadow detection and elimination based on color invariants and Gaussian shadow model is presented in this paper.First authors extract and classify uniform-region，and then create a single Gaussian model for cast shadow，remove the cast shadow based on the Gaussian model and uniform-region.At last，this result is improved using spatial analysis.The results illustrate that the approach is efficient when handling widely different conditions that can occur.

Key words: shadow detection and elimination, color invariants, Gaussian shadow model, uniform-region classification