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:
Mar. 31, 2020

Filed:

Jan. 20, 2017
Applicant:

Beijing Baidu Netcom Science and Technology Co., Ltd., Beijing, CN;

Inventors:

Kaiwen Feng, Beijing, CN;

Zhuo Chen, Beijing, CN;

Bocong Liu, Beijing, CN;

Chengliang Deng, Beijing, CN;

Yibing Liang, Beijing, CN;

Haifeng Wang, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 7/497 (2006.01); G01S 7/48 (2006.01); G01S 17/42 (2006.01); G01S 17/89 (2020.01); G01S 17/93 (2020.01);
U.S. Cl.
CPC ...
G01S 7/497 (2013.01); G01S 7/4808 (2013.01); G01S 17/42 (2013.01); G01S 17/89 (2013.01); G01S 17/936 (2013.01);
Abstract

A motion compensation method and apparatus applicable to laser point cloud data includes acquiring laser point cloud data of a frame; using an acquisition time of a start point as a target time; interpolating coordinate transformation relations and an end laser point, to obtain coordinate transformation relations of other laser points, and transforming coordinates of the other laser points to the coordinates at the target time. During motion compensation on each frame of laser point cloud data, the coordinate transformation relations corresponding to only the start and end laser points are obtained, and the coordinate transformation relations corresponding to the two points are interpolated to obtain transformation relations corresponding to other laser points, thus performing motion compensation. Therefore, the processing speed is improved and meets high real-time requirements on systems such as autopilot control systems.


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