US 12,250,366 B2
Calibration of a surround view camera system
Sujith Shivalingappa, Bangalore (IN); Vikram Appia, Dallas, TX (US); Anand Yalgurdrao Kulkarni, Bangalore (IN); and Do-Kyoung Kwon, Allen, TX (US)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Nov. 6, 2023, as Appl. No. 18/387,206.
Application 18/387,206 is a continuation of application No. 17/118,310, filed on Dec. 10, 2020, granted, now 11,838,497.
Application 17/118,310 is a continuation of application No. 15/393,168, filed on Dec. 28, 2016, granted, now 10,911,745, issued on Feb. 2, 2021.
Prior Publication US 2024/0080435 A1, Mar. 7, 2024
Int. Cl. H04N 17/00 (2006.01); B60R 1/27 (2022.01); G06V 10/10 (2022.01); G06V 10/24 (2022.01); G06V 20/56 (2022.01); H04N 7/18 (2006.01)
CPC H04N 17/002 (2013.01) [B60R 1/27 (2022.01); G06V 20/56 (2022.01); H04N 7/181 (2013.01); B60R 2300/102 (2013.01); B60R 2300/105 (2013.01); B60R 2300/402 (2013.01); G06V 10/16 (2022.01); G06V 10/245 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
capturing, using a set of cameras of a camera system, images of a set of charts;
overlaying, using the camera system, a respective bounding box on each representation of the set of charts in the images;
searching, using the camera system, within the respective bounding box of each representation of the set of charts to identify feature points for the representation of the set of charts;
determining, using the camera system, a set of calibration matrices for each of the set of cameras based on the feature points;
determining, using the camera system, calibration parameters for each of the set of cameras based on the set of calibration matrices; and
calibrating, using the camera system, each of the set of cameras based on the calibration parameters.