The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 12, 2021

Filed:

Jun. 28, 2019
Applicant:

Baidu Usa Llc, Sunnyvale, CA (US);

Inventors:

Tae Eun Choe, Sunnyvale, CA (US);

Yuliang Guo, Sunnyvale, CA (US);

Guang Chen, Sunnyvale, CA (US);

Ka Wai Tsoi, Sunnyvale, CA (US);

Weide Zhang, Sunnyvale, CA (US);

Assignee:

BAIDU USA LLC, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/536 (2017.01); G06T 7/80 (2017.01); G06K 9/00 (2006.01); G06T 7/55 (2017.01); G06T 11/00 (2006.01); G05D 1/02 (2020.01);
U.S. Cl.
CPC ...
G06T 7/536 (2017.01); G05D 1/0231 (2013.01); G05D 1/0257 (2013.01); G06K 9/00798 (2013.01); G06T 7/55 (2017.01); G06T 7/80 (2017.01); G06T 11/00 (2013.01); G05D 2201/0213 (2013.01); G06T 2207/10004 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/30256 (2013.01);
Abstract

In response to a first image captured by a camera of an ADV, a horizon line is determined based on the camera's hardware settings, representing a vanishing point based on an initial or default pitch angle of the camera. One or more lane lines are determined based on the first image via a perception process performed on the first image. In response to a first input signal received from an input device, a position of the horizon line is updated based on the first input signal and a position of at least one of the lane lines is updated based on the updated horizon line. The input signal may represent an incremental adjustment for adjusting the position of the horizon line. A first calibration factor or first correction value is determined for calibrating a pitch angle of the camera based on a difference between the initial horizon line and the updated horizon line.


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