中文说明：在 2009 年 Piotr Dollar [31] 等人提出，2012 年 Venkatesh Bala Sub-buraman 等人 [32] 用于行人检测和行人数目估计。积分通道特征的主要思想是：通过对输入图像进行线性和非线性的变换，比如局部求和、直方图、Haar 结构特征，它们的特征便可以通过积分图快速计算出来。如 RGB 图像的三个颜色通道都可以认为是独立的图像通道; 图像各个梯度方向角分量也可以认为是一个独立的图像通道
English Description：
In 2009, Piotr dollar [31] et al proposed that Venkatesh Bala sub buraman et al. [32] used for pedestrian detection and pedestrian number estimation in 2012. The main idea of integration channel feature is: through the linear and nonlinear transformation of the input image, such as local summation, histogram, Haar structure feature, their features can be quickly calculated through the integration graph. For example, the three color channels of RGB image can be considered as independent image channels, and each gradient direction angle component of image can also be considered as an independent image channel