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  • Title: An improved video-based computer tracking system for soft biomaterials testing.
    Author: Downs J, Halperin HR, Humphrey J, Yin F.
    Journal: IEEE Trans Biomed Eng; 1990 Sep; 37(9):903-7. PubMed ID: 2227976.
    Abstract:
    We present an improved video-based computer system for on-line tracking of small markers moving in a plane. The system consists of a CCD camera, a video monitor, a dedicated 80386/20 microcomputer, a video frame grabber, and custom software. Up to four markers can be tracked at the 30-Hz video frame rate using a two-step, correlation-based search procedure. We discuss the requisite hardware and software requirements and illustrate how this tracking system can be used to collect strain data during biaxial stretching tests on planar soft tissues. Operating at 30 Hz, this system is an improvement over those previously reported, which are either slower or yield less information.
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