Apparatus for generating an interlaced slow motion video output

Details Apparatus for generating an interlaced slow motion video output Apparatus for generating an interlaced slow motion video output

1989-09-06

1991-01-22

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 11, 358140, H04N 701

Patent

active

049874896

ABSTRACT:
In a slow motion video generation apparatus; successive fields of an input video signal are stored in field stores, a spatial interpolator spatially interpolates between lines of a field selected from those stored in the field stores to produce a spatially interpolated video signal, a temporal filter carries out temporal interpolation between a pair of fields of the same interlace polarity selected from those stored in the field stores to produce a temporally filtered video signal, a combining device selectively receives the spatially and temporally interpolated video signals, and a movement indicator compares the fields stored in the field stores to detect whether or not there is local movement in the picture represented by the stored fields and controls the combining device so that the output signal is substantially wholly constituted by the temporally interpolated video signal in picture areas where substantially no movement is detected and is substantially wholly constituted by the spatially interpolated video signal in picture areas where more than a predetermined amount of movement is detected.

REFERENCES:
patent: 4400719 (1983-08-01), Powers
patent: 4768092 (1988-08-01), Ishiwaka
IEEE Transactions on Circuits and Systems, vol. CAS-34, No. 11, Nov. 1987, pp. 1432-1439, New York, G. Schamel, "Pre- and Postfiltering of HDTV Signals for Sampling Rate Reduction and Display Up-Conversion".

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