×

Method, apparatus and system for performing geometric calibration for surround view camera solution

  • US 9,892,493 B2
  • Filed: 04/20/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 04/21/2014
  • Status: Active Grant
First Claim
Patent Images

1. A multi-camera image processing method, comprising:

  • performing a geometric alignment to produce a geometric output, wherein the geometric alignment includes;

    estimating fish eye distortion correction parameters;

    correcting for fish eye lens distortion based on the fish eye distortion correction parameters;

    performing an initial perspective correction on a frame;

    performing corner detection in overlapping areas;

    locating a corner;

    calculating descriptors for features;

    matching a feature point from two cameras scores;

    performing checks and rejecting feature matches;

    finding perspective matrices to minimize a distance between matched features; and

    creating a geometric lookup table.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×