Nonstationary texture modeling by G-invariant random fields
نویسندگان
چکیده
In image processing, textures are generally represented as homogeneous random fields, homogeneous meaning stationary or second-order stationary. This paper presents a generalization of the second-order stationarity to the second-order invariance under a group of transforms. Some examples of interesting groups are given. The Cholesky factorization is applied for the synthesis of random fields showing this generalized invariance property.
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