Patent · US Active

Object detection using image alignment for autonomous machine applications

US11961243B2 · kind B2 · utility

0Cited by

2References

31Claims

0Family size

Assignee

NVIDIA Corporation · US

Inventors

Dong-Qing Zhang · Plainsboro, US
Sangmin Oh · San Jose, US
Junghyun Kwon · Cupertino, US
Baris Evrim Demiroz · San Jose, US
Tae Eun Choe · Sunnyvale, US
Minwoo Park · Saratoga, US
Chethan Ningaraju · Munich, DE
Hao Tsui · Munich, DE
Eric Viscito · Shelburne, US
Jagadeesh Sankaran · Dublin, US
Yongqing Liang · San Jose, US

Key dates

Filing date	Feb 26, 2021
Grant date	Apr 16, 2024
Priority date	—
Expiry date	Dec 30, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06V20/56
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A geometric approach may be used to detect objects on a road surface. A set of points within a region of interest between a first frame and a second frame are captured and tracked to determine a difference in location between the set of points in two frames. The first frame may be aligned with the second frame and the first pixel values of the first frame may be compared with the second pixel values of the second frame to generate a disparity image including third pixels. One or more subsets of the third pixels that have a value above a first threshold may be combined, and the third pixels may be scored and associated with disparity values for each pixel of the one or more subsets of the third pixels. A bounding shape may be generated based on the scoring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.