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Andrew Hackett, Michael Knee, Michel Kerdranvat, Nadine Bolender: Method and apparatus for forming a video signal using motion estimation and signal paths with different interpolation processing. Thomson Consumer Electronics, Joseph S Tripoli, Peter M Emanuel, Richard G Coalter, August 13, 1996: US05546130 (29 worldwide citation)

Motion compensated video output signal (SO) produced by a soft switching or "fading" (SSW) between the a motion compensated interpolation (MCI) and a "fallback" mode (FFI) (e.g., intra-field), controlled by a "measure of confidence" (CF) in the reliability of the estimated motion vector. The confide ...


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Andrew Hackett, Michael Knee, Michel Kerdranvat, Nadine Bolender: Method and apparatus for motion compensated interpolation of intermediate fields or frames. Thomson Consumer Electronics, Joseph S Tripoli, Frederick A Wein, June 24, 1997: US05642170 (28 worldwide citation)

An appearance of a double image around moving objects may be reduced or removed by generating motion compensated 100 Hz fields with the objects in correct positions. When, however, the results of this technique are applied to motion compensated upconversion, objects or parts of the picture which fal ...


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Michael Knee, Andrew Hackett, Michael Kerdranvat, Nadine Bolender: Method and apparatus for motion estimation using block matching. Thomson multimedia, Joseph S Tripoli, Frederick A Wein, October 13, 1998: US05822007 (17 worldwide citation)

Block matching is well known as a robust and intuitively simple method of motion estimation for television pictures. However, when the purpose of the motion estimation is to provide accurate interpolation between images, conventional block matching suffers from the problem that the blocks are situat ...


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Andrew Hackett, Michael Knee, Michel Kerdranvat, Nadine Bolender: Method and apparatus for motion estimation using block matching. Thomson Licensing, Joseph S Tripoli, Ronald H Kurdyla, Guy H Eriksen, August 20, 2002: US06438170 (11 worldwide citation)

Block matching is a robust and simple method of motion estimation for television pictures. One important parameter in block matching is the block size. Large blocks give more reliable motion estimation than small blocks, particularly in the presence of noise on the input picture, but they produce a ...


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Andrew Hackett, Michael Knee, Michel Kerdranvat, Nadine Bolender: Method and apparatus for correcting motion vectors. Thomson Consumer Electronics, Joseph S Tripoli, Frederick A Wein, August 11, 1998: US05793430 (8 worldwide citation)

Motion vectors resulting from block matching are corrected for periodic structures by taking a more reliable vector from an edge of a moving object containing the periodic structure. This is done by calculating and comparing different error combinations to identify periodic structures and replacing ...


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Andrew D Hackett, Werner Boie, Nadine Bolender: Method and apparatus for improving vertical sharpness of picture tubes. Thomson Consumer Electronics, Joseph S Tripoli, Joseph J Laks, Sammy S Henig, March 7, 1995: US05396157 (5 worldwide citation)

Large format TV tubes must produce a high peak brightness in order to be acceptable to the user. This results in a large beam current in bright areas of the picture and in a subsequent defocusing of the resulting spot on the display and in a loss of the sharpness of vertical and horizontal transitio ...


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Werner Boie, Nadine Bolender, Jean Claude Chevet: Scan velocity modulation system with auxiliary vertical deflection towards bright side of video signal transitions. Thomson Consumer Electronics, Joseph S Tripoli, Peter M Emanuel, Richard G Coalter, February 13, 1996: US05491521 (1 worldwide citation)

A video signal is applied to a kinescope having scan velocity modulation for improving picture sharpness in the vertical direction. Pictures from video signals of a type having non-interpolated and vertically interpolated lines (e.g., interlace-progressive up-converted) will tend to exhibit a signif ...


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