Invention Grant
- Patent Title: Ternary image obtaining method and apparatus, and vehicle
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Application No.: US17256844Application Date: 2019-06-28
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Publication No.: US11861844B2Publication Date: 2024-01-02
- Inventor: Shunji Miyahara
- Applicant: GREAT WALL MOTOR COMPANY LIMITED
- Applicant Address: CN Hebei
- Assignee: GREAT WALL MOTOR COMPANY LIMITED
- Current Assignee: GREAT WALL MOTOR COMPANY LIMITED
- Current Assignee Address: CN Hebei
- Agency: NIXON PEABODY LLP
- Agent Jeffrey L. Costellia
- Priority: CN 1810711921.7 2018.06.29
- International Application: PCT/CN2019/093770 2019.06.28
- International Announcement: WO2020/001630A 2020.01.02
- Date entered country: 2020-12-29
- Main IPC: G06T7/11
- IPC: G06T7/11 ; G06T7/13 ; G06V20/56 ; G06V20/58

Abstract:
A method for edge identification of a self-shadowing object based on a visual camera and a vehicle includes: collecting image data of an object to be identified, and performing differentiation processing; according to a preset threshold, performing three-value processing to the image that has been differentiation-processed, to acquire a three-value-processed image including positive-direction boundary pixels and negative-direction boundary pixels; according to the positive-direction boundary pixels and the negative-direction boundary pixels, acquiring a positive-direction straight linear segment and a negative-direction straight linear segment that represent boundary trends of the object to be identified; if the straight linear segments do not create a target object that satisfy a predetermined condition, determining the first boundary according to the predetermined condition; according to the first boundary, determining the second boundary; and by using positions of the first boundary and the second boundary, drawing a peripheral boundary of the object to be identified.
Public/Granted literature
- US20210256273A1 TERNARY IMAGE OBTAINING METHOD AND APPARATUS, AND VEHICLE Public/Granted day:2021-08-19
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