Method and apparatus for identifying local features

摘要

A method of local feature identification comprises retrieving data representing a lightfield, forming an epipolar volume (V) from the retrieved data, applying a transform to epipolar planes retrieved from the epipolar volume, so as to represent the epipolar planes in a new space, identifying a plurality of epipolar lines, and identifying local features (fp) based on at least some of the epipolar lines.

主权项

1. A method of local feature identification and description, comprising the steps of:
retrieving data representing a lightfield, wherein the lightfield is represented by a plenoptic function which comprises at least three dimensions; forming an epipolar volume (V) from the retrieved data; applying a transform to epipolar planes retrieved from said epipolar volume, so as to represent said epipolar planes in a new space in which detection of epipolar lines is easier; identifying a plurality of epipolar lines in the new space; identifying local features (fp) by selecting a point along at least some of said epipolar lines.