Patent ID: 8953893
Filing Date: 2015-02-10
Classification: G06K

Abstract:
1. A method of processing an image, the method comprising: receiving data corresponding to a subset of a plurality of pixels surrounding a particular pixel, wherein each of the plurality of pixels is from the image; determining whether to exclude the particular pixel from a feature candidate set of pixels, wherein the particular pixel is excluded from the feature candidate set of pixels in response to determining that fewer than two neighboring pixels in the subset have an attribute value that is greater than a first comparison value or less than a second comparison value, wherein the particular pixel is included in the feature candidate set of pixels in response to determining that at least two neighboring pixels in the subset have attribute values that are greater than the first comparison value or less than the second comparison value; executing a feature detection operation with respect to each pixel in the feature candidate set of pixels; and determining that the particular pixel corresponds to a feature based on a result of the feature detection operation.