Patent ID: 8358846
Filing Date: 2013-01-22
Classification: G06K

Abstract:
1. A system for scanning images for pornographic content comprising: identifying, in a computer, pixels of an image representing a flesh-tone; performing, in the computer, a heuristic analysis of the image which classifies the image as being pornographic or not using measures of predetermined characteristics of the identified pixels used to indicate a likelihood that the identified pixels contain pornographic content or not, wherein a first one of the characteristics is the thickness of a region of identified pixels, the measure of said thickness being used to indicate a likelihood that the region of identified pixels contains pornographic content which decreases when the measure of said thickness decreases; further wherein a second one of the characteristics is the curvature of a region of adjacent identified pixels, the measure of the curvature being used to indicate a likelihood of the identified pixels contain pornographic content which increases when the measure of curvature increases; and identifying a first region within the image that has a curvature less than a predefined threshold, and removing that first region from further heuristic analysis.