Research Article
Person Detection for an Orthogonally Placed Monocular Camera
Figure 8
From left to right: the original object image [51, 51] px and images with highlighted gradients of HOG features for cell of sizes [16, 16] px, [8, 8] px, and [6, 6] px, respectively. The length of white abscissae is related to the gradients in the image.