Television – Image signal processing circuitry specific to television – Motion vector generation
Patent
1992-06-03
1994-06-07
Britton, Howard W.
Television
Image signal processing circuitry specific to television
Motion vector generation
348208, H04N 5232
Patent
active
053194560
ABSTRACT:
A moving vector detecting apparatus includes a horizontal low-pass filter for extracting a low-pass component in a horizontal direction of an input image signal; a first moving vector detector for detecting a moving vector in a vertical direction of an image, by an inter-frame correlation between a representative point and a pixel on a vertical straight line through the representative point, from the output signal of the horizontal low-pass filter; a vertical low-pass filter for extracting a low-pass component of an input image signal in a vertical direction; and a second moving vector detector for detecting a moving vector in a horizontal direction of the image, by an inter-frame correlation between the representative point and a pixel on a horizontal straight line through the representative point, from the output signal of the vertical low-pass filter. Therefore, the horizontal component of the moving vector is detected from the signal component having a high vertical correlation and the vertical component of the moving vector is detected from the signal component having a high horizontal correlation both by the one-dimensional moving vector detector, with the result that the moving vector can be detected with a few accumulated addition tables in short calculating time.
REFERENCES:
patent: 5184216 (1993-02-01), Kobayashi
patent: 5189513 (1993-02-01), Sekine
Nishida Yoshihiro
Tsuji Shigeki
Britton Howard W.
Mitsubishi Denki & Kabushiki Kaisha
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