Patent ID: 9652672
Date: 2017-05-16
CPC Classifications: G06F,G06K,H04N

Claim:
1. A method of image scale-space analysis that applies an array of anisotropic filters for interest region determination, the method comprising: forming an array of elliptic-shaped anisotropic second order partial derivative Gaussian filters with a first scale parameter in the x direction (s forming an array of rectangular-shaped anisotropic second order partial derivative Gaussian filters with finite spatial support according to the (s analyzing scale space for a selected image frame by the array of rectangular-shaped anisotropic second order partial derivative Gaussian filters of finite spatial support to determine at least one interest point corresponding to different (s convolving a region of pixels in a surrounding neighborhood of the determined at least one interest point with the array of rectangular anisotropic second order partial derivative Gaussian filters to produce at least one interest point result that is resistant to image distortion.