Image analysis – Applications – Motion or velocity measuring
Patent
1995-09-19
1998-08-04
Johns, Andrew
Image analysis
Applications
Motion or velocity measuring
382250, G06K 900
Patent
active
057906866
ABSTRACT:
A method for estimating the translational motion of an object is provided that first computes a plurality of DCT/DST coefficients for two sequential frames. These transform coefficients are then used to compute a pseudo phase function which is then fed into an inverse transform decoder. The output of the decoder is searched for peak values which are then used to determine the displacement of the object.
REFERENCES:
patent: 5025482 (1991-06-01), Murakami et al.
patent: 5091782 (1992-02-01), Krause et al.
patent: 5295201 (1994-03-01), Yokohama
patent: 5339265 (1994-08-01), Liu et al.
Jain et al., "Displacement Measurement and Its Application in Intraframe Image Coding," IEEE Transactions on Communications, vol. COM-29, No. 12, Dec. 1981, pp. 1799-1808.
Koc Ut-Va
Liu K. J. Ray
Johns Andrew
University of Maryland at College Park
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