Invention Grant
- Patent Title: Acceleration of real time computer vision processing on UAVs through GPS attitude estimation
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Application No.: US16234792Application Date: 2018-12-28
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Publication No.: US10976446B2Publication Date: 2021-04-13
- Inventor: Mahanth K. Gowda , Justin G. Manweiler , Justin D. Weisz
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, PC
- Agent Daniel P. Morris, Esq.
- Main IPC: G01S19/54
- IPC: G01S19/54 ; G01S19/43 ; G01S19/14

Abstract:
A method for applying GPS UAV attitude estimation to accelerate computer vision. The UAV has a plurality of GPS receivers mounted at fixed locations on the UAV. The method includes receiving GPS signals from each GPS satellite in view of the UAV, the GPS measurements comprising pseudo-range and carrier phase data representing the distance between each GPS receiver and each GPS satellite. Carrier phase and pseudo-range measurements are determined for each GPS receiver based on the pseudo-range and carrier phase data. The GPS carrier phase and pseudo-range measurements are compared pair-wise for each pair of GPS receiver and satellite. An attitude of the UAV is determined based on the relative distance measurements. A 3D camera pose rotation matrix is determined based on the attitude of the UAV. Computer vision image search computations are performed for analyzing the image data received from the UAV in real time using the 3D camera pose rotation matrix.
Public/Granted literature
- US20190137633A1 ACCELERATION OF REAL TIME COMPUTER VISION PROCESSING ON UAVS THROUGH GPS ATTITUDE ESTIMATION Public/Granted day:2019-05-09
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