Method and system for detection and characterization of open space in digital images
First Claim
Patent Images
1. A method for automatically detecting an open space region in a digital image, comprising the steps of:
- (a) creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image;
(b) analyzing the activity map to determine an activity threshold value;
(c) determining which pixels in the activity map are below the activity threshold value; and
(d) analyzing the threshold activity map for identifying contiguous pixel regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image.
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Abstract
A method for detecting open space in a digital image, the method comprises the steps of creating an activity map for permitting determination of the activity of the digital image; determining which pixels in the activity map are below a threshold; and identifying open space as contiguous pixels of the activity map having values below the predetermined threshold.
105 Citations
29 Claims
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1. A method for automatically detecting an open space region in a digital image, comprising the steps of:
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(a) creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image; (b) analyzing the activity map to determine an activity threshold value; (c) determining which pixels in the activity map are below the activity threshold value; and (d) analyzing the threshold activity map for identifying contiguous pixel regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image. - View Dependent Claims (2, 3, 4, 5)
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6. A method for automatically characterizing an open space region in a digital image, comprising the steps of
(a) creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image: -
(b) analyzing the activity map to determine an activity threshold value; (c) determining which pixels in the activity map are below the activity threshold value; (d) analyzing the threshold activity map for identifying contiguous pixel regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image; (e) extracting image metadata associated with the open space region. - View Dependent Claims (7, 8)
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9. A system for automatically detecting an open space region in a digital image, the system comprising:
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(a) means for creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image; (b) means for analyzing the activity map to determine an activity threshold value; (c) means for determining which pixels in the activity map are below the activity threshold value; and (d) means for analyzing the threshold activity map for identifying contiguous regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image. - View Dependent Claims (10, 11, 12, 13)
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14. A computer program product for automatically detecting an open space region in a digital image, comprising:
- a computer readable storage medium having a computer program stored thereon for performing the steps of;
(a) creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image; (b) analyzing the activity map to determine an activity threshold value; (c) determining which pixels in the activity map are below the activity threshold value; and (d) analyzing the threshold activity map for identifying contiguous regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image. - View Dependent Claims (15, 16, 17, 18)
- a computer readable storage medium having a computer program stored thereon for performing the steps of;
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19. A system for automatically characterizing an open space region in a digital image, the system comprising:
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(a) creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image; (b) analyzing the activity map to determine an activity threshold value; (c) determining which pixels in the activity map are below the activity threshold value; (d) analyzing the threshold activity map for identifying contiguous pixel regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image; and (e) means for extracting metadata associated with the open space region. - View Dependent Claims (20, 21)
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22. A computer program product for automatically characterizing an open space region in a digital image, comprising:
- a computer readable storage medium having a computer program stored thereon for performing the steps of;
(a) creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image; (b) analyzing the activity map to determine an activity threshold value; (c) determining which pixels in the activity map are below the activity threshold value; (d) analyzing the threshold activity map for identifying contiguous pixel regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image; and (e) extracting metadata associated with the open space region. - View Dependent Claims (23, 24)
- a computer readable storage medium having a computer program stored thereon for performing the steps of;
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25. A digital capture device comprising:
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(a) means for creating a corresponding activity map from the digital image for permitting determination of the activity of the digital image; (b) means for analyzing the activity map to determine an activity threshold value; (c) means for determining which pixels in the activity map are below the activity threshold value; and (d) means for analyzing the threshold activity map for identifying contiguous pixel regions of the activity map having values below the activity threshold corresponding to open space regions in the digital image. - View Dependent Claims (26, 27, 28, 29)
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Specification