Texas Instruments Incorporated
Hardware Accelerator for Histogram of Oriented Gradients Computation

Abstract:

A hardware accelerator for histogram of oriented gradients computation is provided that includes a gradient computation component configured to compute gradients G.sub.x and G.sub.y of a pixel, a bin identification component configured to determine a bin id of an angular bin for the pixel based on a plurality of representative orientation angles, G.sub.x, and signs of G.sub.x and G.sub.y, and a magnitude component configured to determine a magnitude of the gradients G.sub.mag based on the plurality of representative orientation angles and the bin id.