Title:
画像中のオブジェクト検出
Document Type and Number:
Japanese Patent JP4668921
Kind Code:
B2
Abstract:
A segmentation operation is applied to an input image to identify foreground objects of interest, and then a shadow removal operation is applied to remove any detected shadows from the foreground segmentation. The shadow removal algorithms can leave holes and bisections in the segmentation map, however, which will then subsequently impact on an object detection step performed using connected component analysis. To get around this problem, a conditional morphological dilation operation is applied to the segmentation map to ‘grow’ the segmented blobs to fill in any holes and bisections, without re-growing shadow pixels in the segmentation. The result is an object detection method and system which is robust to illumination changes causing shadows and/or highlights.
Inventors:
Shu, Lee Kwon
Landavaso, Jose-Lewis
Landavaso, Jose-Lewis
Application Number:
JP2006538930A
Publication Date:
April 13, 2011
Filing Date:
November 08, 2004
Export Citation:
Assignee:
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
International Classes:
G06T7/20; G06T5/00; G06T5/30; G06V10/28
Domestic Patent References:
| JP3035399A | ||||
| JP62279480A | ||||
| JP2000148984A | ||||
| JP11238138A |
Attorney, Agent or Firm:
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Katsu Sunagawa
Ryo Hashimoto
Tetsuya Kazama