Global Scene Descriptors for Matching Manhattan Scenes using Edge Maps Associated with Vanishing Points
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United States of America Patent
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Jul 16, 2015
app pub date -
Jan 10, 2014
filing date -
Jan 10, 2014
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Abstract
A method constructs a descriptor for an image of a scene, wherein the descriptor is associated with a vanishing point in the image by first quantizing an angular region around the vanishing point into a preset number of angular quantization bins, and a centroid of each angular quantization bin indicates a direction of the angular quantization bin. For each angular quantization bin, a sum of magnitudes of pixel gradients for pixels in the image at which a direction of the pixel gradient is aligned with the direction of the angular quantization bin is determined, wherein the steps are performed in a processor.
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