Optimized fast hessian matrix computation architecture

摘要

Methods and systems of recognizing images may include an apparatus having a hardware module with logic to, for a plurality of vectors in an image, determine a first intermediate computation based on even pixels of an image vector, and determine a second intermediate computation based on odd pixels of an image vector. The logic can also combine the first and second intermediate computations into a Hessian matrix computation.

主权项

1. A method comprising:
determining a first intermediate computation based on even pixels of an image vector associated with a first image, wherein the first intermediate computation includes calculating a box filter value for an even pixel of a plurality of even pixels aggregated to exclude odd pixels; determining a second intermediate computation independent from determination of the first intermediate computation and based on odd pixels of the image vector, wherein the second intermediate computation includes calculating a box filter value for an odd pixel of a plurality of odd pixels aggregated to exclude even pixels; combining the first intermediate computation and the second intermediate computation into a Hessian matrix computation; and matching the first image to a second image based at least in part on the Hessian matrix computation.