METHODS AND APPARATUS TO DETERMINE THE DIMENSIONS OF A REGION OF INTEREST OF A TARGET OBJECT FROM AN IMAGE USING TARGET OBJECT LANDMARKS
First Claim
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1. A method comprising:
- identifying a landmark of a target object in an image based on a match between the landmark and a template landmark;
projecting dimensions of the template landmark based on a location of the landmark in the image;
determining a region of interest based on the projected dimensions, the region of interest corresponding to text printed on the target object.
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Abstract
Methods and apparatus to determine the dimensions of a region of interest of a target object and a class of the target object from an image using target object landmarks are disclosed herein. An example method includes identifying a landmark of a target object in an image based on a match between the landmark and a template landmark; classifying a target object based on the identified landmark; projecting dimensions of the template landmark based on a location of the landmark in the image; and determining a region of interest based on the projected dimensions, the region of interest corresponding to text printed on the target object.
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Citations
33 Claims
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1. A method comprising:
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identifying a landmark of a target object in an image based on a match between the landmark and a template landmark; projecting dimensions of the template landmark based on a location of the landmark in the image; determining a region of interest based on the projected dimensions, the region of interest corresponding to text printed on the target object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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a landmark detector to identify a landmark of a target object in an image based on a match between the landmark and a template landmark; and a corner determiner to; project dimensions of the template landmark based on a location of the landmark in the image; and determine a region of interest based on the projected dimensions, the region of interest corresponding to text printed on the target object. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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23. A computer readable storage medium comprising instructions which, when executed, cause a machine to at least:
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identify a landmark of a target object in an image based on a match between the landmark and a template landmark; project dimensions of the template landmark based on a location of the landmark in the image; and determine a region of interest based on the projected dimensions, the region of interest corresponding to text printed on the target object.
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Specification