System and method for model adaptation
First Claim
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1. A method for adapting a matching model of an object comprising the following steps:
- (a) providing an electronic image of the object;
(b) providing a matching model of the object, the matching model comprising a plurality of model levels comprising a plurality of points and optionally a plurality of directions;
(c) determining a pose of the object in said electronic image by using a matching approach that uses said matching model, wherein step (c) includes;
(c1) creating an image pyramid of said electronic image, the image pyramid consisting of a plurality of image levels,(c2) determining the pose of the object on a first image level of the image pyramid with a lower resolution by using a first model level that corresponds to the first image level,(c3) refining the pose of the object on a second image level of the image pyramid with a higher resolution by using a second model level that corresponds to the second image level;
(d) transforming the matching model according to said pose, yielding a transformed model;
(e) determining for at least one point of said transformed model a corresponding point in said electronic image; and
(f) adapting the matching model according to the at least one determined corresponding point.
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Abstract
A method for adapting a matching model of an object comprising the step of providing an electronic image of the object; providing a matching model of the object, the matching model consisting of a plurality of points; determining a pose of the object in said electronic image by using a matching approach that uses said matching model; transforming the matching model according to said pose, yielding a transformed model; determining for at least one point of said transformed model a corresponding point in said electronic image; and adapting the matching model according to the at least one determined corresponding point.
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Citations
19 Claims
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1. A method for adapting a matching model of an object comprising the following steps:
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(a) providing an electronic image of the object; (b) providing a matching model of the object, the matching model comprising a plurality of model levels comprising a plurality of points and optionally a plurality of directions; (c) determining a pose of the object in said electronic image by using a matching approach that uses said matching model, wherein step (c) includes; (c1) creating an image pyramid of said electronic image, the image pyramid consisting of a plurality of image levels, (c2) determining the pose of the object on a first image level of the image pyramid with a lower resolution by using a first model level that corresponds to the first image level, (c3) refining the pose of the object on a second image level of the image pyramid with a higher resolution by using a second model level that corresponds to the second image level; (d) transforming the matching model according to said pose, yielding a transformed model; (e) determining for at least one point of said transformed model a corresponding point in said electronic image; and (f) adapting the matching model according to the at least one determined corresponding point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification