05148269 is referenced by 71 patents and cites 8 patents.

In motion compensated interpolation of TV-pictures it is usual to divide the picture into a plurality of blocks, a motion vector being determined for each block. This division into blocks has the disadvantage, that sometimes block boundaries become visible (dirty window effect). The invention generates a continuous vector field from the blocked vector field with the aid of a median filter which calculates for each subblock (H1) from a number of subblocks (H1 . . . H4) into which each block (H) is divided, a motion vector based on the motion vectors of the original block (H) to which the subblock belongs, and of the original blocks (E, G) adjacent to the subblock (H1) concerned.

Title
Motion vector processing device
Application Number
7/727745
Publication Number
5148269
Application Date
July 10, 1991
Publication Date
September 15, 1992
Inventor
Hendrik Huijgen
Eindhoven
NL
Gerard de Haan
Eindhoven
NL
Agent
Edward W Goodman
Assignee
U S Philips Corporation
NY, US
IPC
H04N 7/01
View Original Source