Patent ID: 9734395
Date: 2017-08-15
CPC Classifications: G06K

Claim:
1. A non-transitory computer-readable medium storing a program for tracking a feature point in an image that causes a computer to execute a process, the process comprising: calculating first values indicating a degree of corner for respective pixels in another image, based on change of brightness values in a horizontal direction and a vertical direction; calculating second values indicating a degree of similarity between respective areas in the another image and a reference area around the feature point in the image, based on comparison between the respective areas and the reference area; calculating third values indicating an overall degree of corner and similarity, based on the first values and the second values; and tracking the feature point by identifying a point in the another image corresponding to the feature point in the image, based on the third values, wherein the calculating first values indicating the degree of corner calculates the first values indicating the degree of corner in accordance with the following equations: