18034833. HOMOGRAPHY MATRIX GENERATION APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE MEDIUM simplified abstract (NEC Corporation)

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HOMOGRAPHY MATRIX GENERATION APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE MEDIUM

Organization Name

NEC Corporation

Inventor(s)

Gaku Nakano of Tokyo (JP)

HOMOGRAPHY MATRIX GENERATION APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE MEDIUM - A simplified explanation of the abstract

This abstract first appeared for US patent application 18034833 titled 'HOMOGRAPHY MATRIX GENERATION APPARATUS, CONTROL METHOD, AND COMPUTER-READABLE MEDIUM

Simplified Explanation

The abstract describes a homography matrix generation apparatus that detects key-point pairs from two images and uses them to generate a homography matrix representing a transformation from one image to another.

  • The apparatus detects key-point pairs from a first image and a second image.
  • For each key-point pair, the apparatus finds a derived point pair by measuring distances in different directions from the points in the key-point pair.
  • The apparatus uses the key-point pairs and derived point pairs to generate a homography matrix representing a transformation from the first image to the second image.

Potential Applications

  • Image stitching: The homography matrix can be used to align and stitch together multiple images to create a panoramic view.
  • Augmented reality: The homography matrix can be used to overlay virtual objects onto real-world scenes by mapping points from a virtual image to a real image.
  • Image registration: The homography matrix can be used to align images taken from different perspectives or at different times for comparison or analysis.

Problems Solved

  • Alignment of images: The apparatus solves the problem of aligning images taken from different perspectives or at different times by generating a homography matrix that represents the transformation between the images.
  • Image distortion correction: The apparatus can correct for perspective distortion or lens distortion by applying the homography matrix to the image.

Benefits

  • Accurate image alignment: The apparatus can accurately align images by detecting key-point pairs and generating a homography matrix.
  • Versatility: The homography matrix can be used for various applications such as image stitching, augmented reality, and image registration.
  • Real-time processing: The apparatus can detect key-point pairs and generate the homography matrix in real-time, allowing for immediate use in applications like augmented reality.


Original Abstract Submitted

A homography matrix generation apparatus () detects two or more key-point pairs from a first image () and a second image (). The homography matrix generation apparatus () detects, for each of the key-point pairs, a derived point pair, which is a pair of a point separated by a first distance in a first direction from a point on the first image () included in the key-point pair and a point separated by a second distance in a second direction from a point on the second image () included in the key-point pair. The homography matrix generation apparatus () uses each of the detected key-point pairs and the derived point pairs to generate a homography matrix () representing a homography from a point on the first image () to a point on the second image ().

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