Television – Format conversion – Line doublers type
Patent
1994-05-31
1997-02-11
Kostak, Victor R.
Television
Format conversion
Line doublers type
348699, H04N 701
Patent
active
056025912
ABSTRACT:
The motion signal detection method achieves splendid motion signal detection both from a video signal having an inter-frame difference signal of the same level as noise and a video signal obtained when a fine-patterned object moves in parallel translation. A video signal processing apparatus is provided for use with the above-mentioned motion signal detection method. The inter-frame difference signal obtained by a subtractor is input to the space expander circuit and then to a weighting coefficient generating circuit to obtain a weighting coefficient, and on the other hand, the inter-frame difference signal is input to an absolute value calculating circuit and a low pass filter, and the output signal is digitized by a quantizing circuit by using a quantizing parameter, which is controlled by the weighting coefficient.
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Yutaka Tanaka et al; "Processing Frame Difference Signals for Detection of Moving Areas"; Jul. 25, 1986; pp. 59-64.
Kostak Victor R.
Matsushita Electric - Industrial Co., Ltd.
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