Title:
METHODS AND APPARATUS TO CLUSTER AND COLLECT HEAD-TOE LINES FOR AUTOMATIC CAMERA CALIBRATION
Document Type and Number:
WIPO Patent Application WO/2020/090188
Kind Code:
A1
Abstract:
An automatic method improves calibration of the camera by detecting key body points on people in images (100); extracting, from the key body points, orthogonal lines that extend from a head to feet of the people (110); selecting, from the orthogonal lines, head-toe lines of the people who are standing upright in the images (120); and calibrating the camera from the head-toe lines of the people who are standing upright in the images (130).
Inventors:
CHANDRAN ARUN KUMAR (SG)
TAKAHASHI YUSUKE (SG)
TAKAHASHI YUSUKE (SG)
Application Number:
PCT/JP2019/032163
Publication Date:
May 07, 2020
Filing Date:
August 16, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04N5/232
Foreign References:
| US20170289411A1 | 2017-10-05 | |||
| US20180075593A1 | 2018-03-15 | |||
| US20060215031A1 | 2006-09-28 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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