Motion-compensated picture signal interpolation
AssigneeU.S. Philips Corporation
InventorsGerard de Haan, Olukayode A. Ojo, Paul W. A. C. Biezen, Hendrik Huijgen
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Abstract
In a motion-compensated picture signal interpolation apparatus comprising a field memory (FM2) for delaying an input field sequence, a motion vector estimator (ME) for furnishing motion vectors, and a motion-compensated interpolator (MC) coupled to an input and an output of the field memory (FM2) for furnishing a sequence of motion-compensated output fields on the basis of the motion vectors, inputs of the motion vector estimator (ME) are coupled to the input and the output of the field memory (FM2) to estimate the motion vectors by means of the same single field memory (FM2) which is used for the motion-compensated interpolation. (FIG. 1 )
Claims12
A motion-compensated picture signal interpolation apparatus comprising:
- (a) a single field memory having a capacity to store only a single field, for delaying a picture signal field sequence;
- (b) motion vector estimation means for furnishing interfield motion vectors;
- and
- (c) motion compensation interpolation means for furnishing a sequence of motion compensated output fields on the basis of said motion vectors;
- wherein said motion vector estimation means and motion compensated interpolation means switchably share said single field memory.
A motion-compensated picture signal interpolation apparatus comprising;
- memory means for furnishing a field sequence having a number of fields per second different from that of an input field sequence;
- motion vector estimation means coupled to said memory means for furnishing motion vectors;
- motion-compensated interpolation means coupled to said input and said output of said memory means for furnishing a sequence of motion-compensated output fields on the basis of said motion vectors;
- and
- wherein in the presence of fields originating from film pictures, said apparatus furnishes an output field sequence constituted by pairs of input fields alternated with pairs of interpolated fields.
Dependencies are inferred from the claim text.