Invention Grant
- Patent Title: Method for obtaining combined depth image, and depth camera
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Application No.: US15767607Application Date: 2016-08-05
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Publication No.: US10713804B2Publication Date: 2020-07-14
- Inventor: Jingxiong Wang , Hui Mao , Linjie Shen , Hai Yu , Shiliang Pu
- Applicant: Hangzhou Hikvision Digital Technology Co., Ltd.
- Applicant Address: CN Hangzhou, Zhejiang
- Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
- Current Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
- Current Assignee Address: CN Hangzhou, Zhejiang
- Agency: Bozicevic, Field & Francis LLP
- Agent Michael J. Blessent; Bret E. Field
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7a890926
- International Application: PCT/CN2016/093546 WO 20160805
- International Announcement: WO2017/063435 WO 20170420
- Main IPC: G06T7/521
- IPC: G06T7/521 ; G06T7/55 ; H04N5/225 ; H04N9/04 ; G01S17/87 ; G01S17/89

Abstract:
A method for obtaining a combined depth map, and a depth camera. The method is applicable to a processor in the depth camera. The depth camera includes the processor, at least one light emitting element, and at least two time-of-flight (ToF) sensors, and the composite irradiation range of the at least one light emitting element convers the composite field of view of the at least two ToF sensors. The light emitting elements in the depth camera modulate light signals with the same modulation signal and then transmit the modulated light signals; the ToF sensors demodulate, by using same demodulation signal corresponding to the modulation signal, the received modulated light signal reflected back by an object, so as to generate depth data; and the processor performs data fusion processing on all the received depth data, so as to obtain a combined depth map. By applying the technical solutions provided in the embodiments of the present application, the application requirements of the depth map of the large field of view can be satisfied, and the problem of mutual interference due to asynchronization of modulation and demodulation can be avoided.
Public/Granted literature
- US20180300891A1 METHOD FOR OBTAINING COMBINED DEPTH IMAGE, AND DEPTH CAMERA Public/Granted day:2018-10-18
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