HOMOGRAPHY ESTIMATION APPARATUS AND METHOD

摘要

Disclosed are a homography estimation apparatus and method. A down-sampling unit reduces the reference image and the target image to the same size to generate down-sampled images. A feature point extraction unit extracts feature points from the reference image and the target image down-sampled to the same size, respectively. An outlier removal unit matches the feature points extracted from the reference image with the feature points extracted from the target image, and detects and removes outliers, which are feature points that do not match, from the matched feature points. A homography estimation unit estimates a homography using feature points from which outliers are removed. A reference image correction unit corrects the reference image using the estimated homography.

主权项

1. A homography estimation apparatus comprising:
a down-sampling unit configured to reduce a reference image and a target image to the same size to generate down-sampled images; a feature point extraction unit configured to extract feature points from the reference image and the target images that are down-sampled to the same size, respectively; an outlier removal unit configured to match the feature points extracted from the reference image with the feature points extracted from the target image to detect and remove outliers, which are feature points that do not match, from the matched feature points; a homography estimation unit configured to estimate a homography using feature points from which the outliers have been removed; and a reference image correction unit configured to correct the reference image using the estimated homography.