Method and device for the invariant-affine recognition of shapes
First Claim
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1. A method for object recognition applied to a digital image called a query and to a digital image called a target, the method comprising:
- simulating, by one or more processors, from each of the digital images a plurality of digital rotations and at least two digital tilts different from 1 in order to develop a simulated image for each rotation-tilt pair; and
applying an algorithm, by the one or more processors, generating values that are invariant in translation, rotation and zoom onto the simulated images in order to determine local characteristics, called scale invariant features (SIF), used for recognizing similar or identical objects between the query and the target.
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Abstract
A method for the recognition of objects in at least one digital image includes: a) simulating from the digital image a plurality of digital rotations and at least two digital tilts different from 1 in order to develop a simulated image for each rotation-tilt pair; and b) applying an algorithm generating values that are invariant in translation, rotation and zoom onto the simulated images in order to determine so-called SIF (scale invariant features) local characteristics used for recognizing objects. The SIFT method can be used in step b.
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Citations
18 Claims
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1. A method for object recognition applied to a digital image called a query and to a digital image called a target, the method comprising:
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simulating, by one or more processors, from each of the digital images a plurality of digital rotations and at least two digital tilts different from 1 in order to develop a simulated image for each rotation-tilt pair; and applying an algorithm, by the one or more processors, generating values that are invariant in translation, rotation and zoom onto the simulated images in order to determine local characteristics, called scale invariant features (SIF), used for recognizing similar or identical objects between the query and the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18)
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15. A Device for object recognition between a digital image which is a query and to a digital image which is a target, the device comprising:
a processing circuit configured to; apply from each of the digital images a plurality of digital rotations and the at least two digital tilts different from 1 in order to develop a simulated image for each rotation-tilt pair, and apply an algorithm generating values that are invariant in translation, rotation and zoom onto the simulated images in order to determine local characteristics, called scale invariant features (SIF), used to recognize similar or identical objects between the query and the target. - View Dependent Claims (16)
Specification