Patent ID: 8744177
Filing Date: 2014-06-03
Classification: G06K,G06T

Abstract:
1. A method of processing an image, comprising: extracting a plurality of straight lines that pass through a vanishing point from the image; and determining, based on a result of the extracting of the plurality of straight lines, a building region in the image based, at least in part, on color values of pixels that are determined to be within respective defined regions that correspond to the extracted plurality of straight lines using a computer, where at least one of the respective defined regions includes pixels of one of the plurality of straight lines that passes through the vanishing point and pixels of the image separate from the pixels of the one of the plurality of straight lines, wherein the extracting of the plurality of straight lines that pass through the vanishing point from the image comprises: when neighboring pixels which are determined as straight lines because the number of pixels that have the same direction exceeds a predetermined threshold, extracting a plurality of straight lines at a plurality of angles from the image; and extracting the plurality of straight lines that pass through the vanishing point from among the plurality of straight lines at the plurality of angles, wherein the pixels that correspond to the extracted plurality of straight lines that pass through the vanishing point are a part of the building region.