关键词: 交通标志检测, 颜色标准化, 分量阈值化, RGB模型

Abstract: To reduce the computational complexity in the scene image processing，this paper proposes a fast method of pre-processing for traffic signs detection based on the complex color information，i.e.，color-standardization as defined in this paper.It uses the RGB color-components to threshold a complex scene image which is mapped to a simple benchmark image consisting of standard color of eight categories.Five colors relating to traffic signs are extracted to form the standardized traffic signs region.Compared with the generic method of color extraction based on the HSI model，the proposed method substantially attenuates the complexity of color information in the scene image，and is time saving in computing color model conversion.Experimental results show that the presented approach indicates better robustness，and achieves the traffic sign detection with high processing speed and efficiency.

Key words: traffic sign detection, color-standardization, component thresholding, RGB model