Hello. How to create multi cascade detector with one feature pool (shared features)? I have many detecotrs (LBP) different objects or veiws of object, but they uses own features. Second, I not understand what mean this LBP features: [63] x=0; y=1; width=2; height=4; In theory LBP is binary histogram. I have one idea that x y is offset and width height is sizes of one of 8 rectangles. (In theory there is squres whith sizes of all pateern 3 6 9 and etc). How can i interpret LBP features in OpenCV?