Television – Image signal processing circuitry specific to television – Selective image modification
Patent
1992-08-17
1994-08-23
Britton, Howard W.
Television
Image signal processing circuitry specific to television
Selective image modification
348715, H04N 592
Patent
active
053411749
ABSTRACT:
A process is provided for creating a high resolution copy of a target video frame selected from a sequence of video frames, wherein each video frame comprises two interlaced fields. The process comprises the steps of: selecting a single field of the target video frame for resolution enhancement; defining a reference target frame having pixel values assigned from the selected single field; defining an enlarged target frame having pixel locations corresponding to the high resolution copy; assigning pixel values from the selected single field to pixel locations in the enlarged target frame which correspond to pixel locations in the selected single field; assigning estimated pixel values to unassigned pixel locations in the reference target frame; selecting a field from one of the video frames in the sequence of video frames which was not chosen as the selected single field as a first object field; estimating motion vectors extending from the reference target frame to pixels in the first object field; identifying accurate motion vectors; assigning the value of a respective pixel for each motion vector identified as accurate to an enlarged target frame pixel location corresponding to an origination point of the motion vector unless the enlarged target frame pixel location was previously assigned a pixel value; and printing the enlarged target frame. Further provided is printing apparatus for creating a high resolution copy of lower resolution video information.
REFERENCES:
patent: 4280144 (1981-07-01), Bacon
patent: 4598309 (1986-07-01), Casey
patent: 4639783 (1987-01-01), Fling
patent: 4639784 (1987-01-01), Fling
patent: 4720745 (1988-01-01), DeForest et al.
patent: 4783840 (1988-11-01), Song
patent: 4789933 (1988-12-01), Chen et al.
patent: 4847909 (1989-07-01), Shibata
patent: 4849914 (1989-07-01), Medioni et al.
patent: 4860104 (1989-08-01), Katsuyama
patent: 4862283 (1989-08-01), Smith
patent: 4924522 (1990-05-01), Bray et al.
patent: 4941190 (1990-07-01), Joyce
patent: 4965666 (1990-10-01), Haghiri
patent: 4967271 (1990-10-01), Campbell et al.
patent: 4998215 (1991-03-01), Black et al.
patent: 5131057 (1992-07-01), Walouit et al.
patent: 5191413 (1993-03-01), Edgar
patent: 5233421 (1993-08-01), Christopher
A. N. Netravali and J. D. Robbins, "Motion-Compensated Television Coding: Part 1, " The Bell System Technical Journal, vol. 58, Mar. 1979, pp. 631-670.
D. R. Walker and K. R. Rao, "Improved Pel-Recursive Motion Compensation," IEEE Transactions on Communications, vol. COM-32, No. 10, Oct. 1984, pp. 1128-1134.
K. Xue et al, "Spatial Domain Algorithm for Video-to-printing Image Resolution Conversion," Proceedings of the SPIE/SPSE Symposium on Electronic Imaging: Sci. and Tech., Feb. 1990 pp. 215-224.
Smith & Davis, "A New Algorithm for Edge Detection," Jun. 10, 1974, pp. 55-61.
Miyake et al, "A New Interpolation Algorithm of Television Pictures for Compact Printing System" SPSE's 40th Annual Conference and Symposium on Hybrid Imaging Systems, pp. 17-20 (1987).
Tzou et al., "Subjectively Adapted Interpolation" Electronic Imaging '86, pp. 144-148 (1986).
Pokorny et al. "Computer Graphics: The Principles Behind Art and Science" pp. 260-262.
Marr, Vision, pp. 54-61.
Kefu Xue et al, "An Edge-Restricted Spatial Interpolation Algorithm", Journal of Electronic Imaging, Apr. 1992, pp. 152-161.
Walowit Eric
Winans Ann J.
Xue Kefu
Britton Howard W.
Wright State University
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