Method for determining feature points based on hierarchical bloc

Details Method for determining feature points based on hierarchical bloc Method for determining feature points based on hierarchical bloc

1996-03-14

1998-03-24

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348413, 348415, 348416, H04N 718

Patent

active

057318514

ABSTRACT:
A novel method for determining feature points comprises the steps of detecting edge points from the video frame; selecting, as a processing block, a block having a maximum number of edge points within said each search region; dividing the processing block into a number of candidate blocks; and selecting a candidate block having a maximum number of edge points within the processing block to determine the center pixel of the selected candidate block as one of the feature points.

REFERENCES:
patent: 5111511 (1992-05-01), Ishii et al.
patent: 5453800 (1995-09-01), Kondo et al.
patent: 5546129 (1996-08-01), Lee
patent: 5581308 (1996-12-01), Lee
patent: 5592228 (1997-01-01), Dachiku et al.

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