Image segregation system with method for handling textures
View Patent ↗In a first exemplary embodiment of the present invention, an automated, computerized method is provided for processing an image. According to a feature of the present invention, the method comprises the steps of providing an image file depicting an image, in a computer memory, assembling a feature vector for the image file, the feature vector containing information regarding a likelihood that a selected pair of regions of the image file are of a same intrinsic characteristic, for example, a same texture, providing a classifier derived from a computer learning technique, computing a classification score for the selected pair of regions of the image file, as a function of the feature vector and the classifier and classifying the regions as being of the same intrinsic characteristic, as a function of the classification score.
1. An automated, computerized method for processing an image, comprising the steps of:
providing an image file depicting an image, in a computer memory;
assembling a feature vector for the image file, the feature vector containing information regarding a likelihood that a selected pair of regions of the image file are of a same texture;
providing a classifier derived from a computer learning technique;
computing a classification score for the selected pair of regions of the image file, as a function of the feature vector and the classifier;
classifying the regions as being of the same texture, as a function of the classification score;
when a classification score indicates regions as being of the same texture, defining a constraint between the regions; and
performing an optimization operation as a function of the constraint to generate an intrinsic image corresponding to the image, the intrinsic image comprising a representation of one of material or illumination, expressed as a separate, multi-band representation for the one of material or illumination, independent of the other of the material or illumination, wherein each band corresponds to a segment of the electro-magnetic spectrum.
2. The method of claim 1 wherein the regions comprise block tokens.
3. The method of claim 1 wherein the information regarding a likelihood that a selected pair of regions of the image file are of a same texture includes features selected from a group including a Laws filter representation of the regions being examined, a Gabor filter representation of the regions being examined, a texton histogram comparison, a semantic texture classifier, a gradient histogram comparison, a semantic texton representations of the regions being examined, a color saturation test, and combinations thereof.
4. A computer system which comprises:
a CPU; and
a memory storing an image file containing an image;
the CPU arranged and configured to execute a routine to assemble a feature vector for the image file, the feature vector containing information regarding a likelihood that a selected pair of regions of the image file are of a same texture, provide a classifier derived from a computer learning technique, compute a classification score for the selected pair of regions of the image file, as a function of the feature vector and the classifier and classify the regions as being of the same texture, as a function of the classification score, and when a classification score indicates regions as being of the same texture, define a constraint between the regions and perform an optimization operation as a function of the constraint to generate an intrinsic image corresponding to the image, the intrinsic image comprising a representation of one of material or illumination, expressed as a separate, multi-band representation for the one of material or illumination, independent of the other of the material or illumination, wherein each band corresponds to a segment of the electro-magnetic spectrum.
5. A computer program product, disposed on a non-transitory computer readable media, the product including computer executable process steps operable to control a computer to: assemble a feature vector for an image file, the feature vector containing information regarding a likelihood that a selected pair of regions of the image file are of a same texture, provide a classifier derived from a computer learning technique, compute a classification score for the selected pair of regions of the image file, as a function of the feature vector and the classifier and classify the regions as being of the same texture, as a function of the classification score, and when a classification score indicates regions as being of the same texture, define a constraint between the regions and perform an optimization operation as a function of the constraint to generate an intrinsic image corresponding to the image, the intrinsic image comprising a representation of one of material or illumination, expressed as a separate, multi-band representation for the one of material or illumination, independent of the other of the material or illumination, wherein each band corresponds to a segment of the electro-magnetic spectrum.
6. The computer program product of claim 5 wherein the regions comprise block tokens.