Title:
EXTERNAL PARAMETER CALIBRATION METHOD AND APPARATUS, DEVICE, SERVER AND VEHICLE-MOUNTED COMPUTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/194110
Kind Code:
A1
Abstract:
The present application discloses an external parameter calibration method and apparatus, a device, a server and a vehicle-mounted computing device. The method comprises: acquiring point cloud data and pose data; constructing a target function according to the point cloud data, the pose data, first feature information and a current first transformation matrix, wherein the first feature information is obtained by extracting features of the point cloud data on the basis of a first neural network model, and the first transformation matrix is a transformation matrix from a first coordinate corresponding to the point cloud data to a second coordinate corresponding to the pose data; and updating the first transformation matrix according to the target function. In the present application, feature information extracted by a deep neural network is used to construct a target function for use in updating a first transformation matrix, which helps to improve the accuracy of external parameter calibration, thereby improving the precision of functions such as system mapping, positioning, navigation, etc.
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Inventors:
CHEN JINGHENG (CN)
LI YAMIN (CN)
LIU XINCHUN (CN)
LI YAMIN (CN)
LIU XINCHUN (CN)
Application Number:
PCT/CN2022/080777
Publication Date:
September 22, 2022
Filing Date:
March 14, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06T7/80
Foreign References:
| CN112034438A | 2020-12-04 | |||
| CN111369602A | 2020-07-03 | |||
| CN109345574A | 2019-02-15 | |||
| CN111208492A | 2020-05-29 | |||
| CN112014857A | 2020-12-01 | |||
| US20200218288A1 | 2020-07-09 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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