Unmanned Vehicle Guidance Using Video Camera/Vehicle Model (MSFC Center Director's Discretionary Fund Final Report, Project No. 97-23)

NASA/TM-209788, Sutherland, T., Unmanned Vehicle Guidance Using Video Camera/Vehicle Model (MSFC Center Director's Discretionary Fund Final Report, Project No. 97-23), Avionics Department, Engineering Directorate, NASA Marshall Space Flight Center, AL 35812, December 1999, pp. 16, Format(s): PDF 3646k

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A video guidance sensor (VGS) system has flown on both STS-87 and STS-95 to validate a single camera/target concept for vehicle navigation. The main part of the image algorithm was the subtraction of two consecutive images using software. For anominal size image of 256x256 pixels this subtraction can take a large portion of the time between successive frames in standard rate video, leaving very little time for other computations. The purpose of this project was to integrate the software subtraction into hardware to speed up the subtraction process and allow for more complex algorithms to be performed, both in hardware and software

Keywords:	image subtraction, algorithm, vehicle navigation, sts-87, sts-95, vgs
Subjects:	Engineering: Electronics and Electrical Engineering: Electronic Components
ID Code:	507
Deposited On:	24 July 2002