Image analysis – Applications – Motion or velocity measuring
Patent
1995-01-03
1997-04-01
Couso, Jose L.
Image analysis
Applications
Motion or velocity measuring
382295, G06K 932, G06K 900
Patent
active
056174829
ABSTRACT:
A method of motion compensation and elastic deformation in picture sequences in transmission of moving pictures between a transmitter and a receiver, that is a picture coding method in which the pixel values of the picture are determined using a previous picture. In the transmitter, each picture in the picture sequence is divided into triangles by suitably choosing corner points, and the motion between two successive pictures is estimated such that the motion vectors of all the corner points can be established. Information about the corner points and/or the motion vectors is transmitted from the transmitter to the receiver, in which the motion vectors of the internal points of the triangles are calculated using the three transmitted motion vectors belonging to the respective triangle. The pixel values in the corner points of the triangles and in the internal points of the triangles are calculated using the transmitted and the calculated motion vectors, respectively. Preferrably, the motion vectors of the internal points of the triangles are calculated by interpolation.
REFERENCES:
patent: 4600919 (1986-07-01), Stern
patent: 4924310 (1990-05-01), von Brandt
patent: 4984074 (1991-01-01), Uomori et al.
patent: 5019901 (1991-05-01), Uomori et al.
Bella Matthew C.
Couso Jose L.
Televerket
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