公开(公告)号：US20210256721A1

公开(公告)日：2021-08-19

申请号：US17151939

申请日：2021-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kap Kee KIM ,  BonKi KOO

IPC: G06T7/593 ,  G06T5/50

Abstract: An apparatus for enhancing a disparity map generates a disparity map of a reference image by performing stereo matching for each stereo image, divides the reference image into at least one homogeneous area based on a homogeneity criterion, extracts valid disparity values from the disparity map of the reference image, calculates a linear rate of change for the valid disparity values in each homogeneous area divided based on the extracted valid disparity values, and enhances the disparity map by updating invalid disparity values in a corresponding homogeneous area using the linear rate of change calculated for each homogeneous area.