 |
|
|
|
|
|
 Title: |
EP0680205A2:
Imaging system for object segmentation[German][French]
[ Derwent Title ]
|
Country:
Kind: |
EP European Patent Office (EPO)
A2 APPLICATION PUBLISHED WITHOUT SEARCH REPORT i
|
| |
| Inventor: |
Bolle, Rudolf Maarten;
Connell, Jonathan Hudson;
Haas, Norman;
Mohan, Rakesh;
Taubin, Gabriel;
|
| Assignee: |
International Business Machines Corporation
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1995-11-02
/ 1995-02-01
|
| Application Number: |
EP1995000101352
|
| IPC Code: |
Advanced:
G06T 5/50;
H04N 5/235;
H04N 5/275;
Core:
H04N 5/272;
more...
IPC-7:
H04N 5/275;
|
| ECLA Code: |
G06T5/50; H04N5/235L; H04N5/275;
|
| Priority Number: |
|
| Abstract: |
Described herein is an image processing system and a method for segmenting an object from the background of a scene by controlling a light source to illuminate the object more in one scene image than in another scene image. The two scene images are captured by an image input device and are then compared. The part of the image that experienced an increase in intensity is segmented as corresponding to the object. The image input device and the light source can also be placed in an opaque enclosure with an opening through which the input device can view and the light can illuminate the object. By placing the enclosure the correct distance away from the object, the effects of ambient light on the image are removed. Object glare is removed by a polarizing filter system.
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Designated Country: |
DE FR GB
|
| Family: |
Show 3 known family members
|
First Claim:
Show all claims |
1. An image processing system for separating one or more objects in a scene from a background of the scene, comprising:
a controllable light source for illuminating the scene;
an image input device for taking two or more images of the the scene, a first scene image taken with the controllable light source on and a second scene image taken with the controllable light source at a reduced illumination level, the first scene image having an object image brighter than the object image in the second scene; and
a comparator for comparing the first and second scene images and for segmenting the object from the background by creating a segmented object image that includes one or more pixels that were brighter in the first scene image than in the second scene image.
|
Description
Expand description |
+ FIELD OF THE INVENTION
This invention relates to the field of image processing and computer vision. More specifically, the invention relates to an apparatus and method for taking images of objects independent of the background and/or of the ambient illumination.
+ BACKGROUND OF THE INVENTION
+ STATEMENT OF PROBLEMS WITH THE PRIOR ART
+ OBJECTS OF THE INVENTION
+ SUMMARY OF THE INVENTION
+ Brief Description of the Drawings
+ DETAILED DESCRIPTION OF THE INVENTION
|
