System and method for three dimensional change detection and measurement of a scene using change analysis
First Claim
1. A method comprising:
- receiving a first digital model of a first three-dimensional scene comprising a plurality of points and at least one object comprising a cluster of points;
receiving a second digital model of a second three-dimensional scene comprising a plurality of points and at least one object comprising a cluster of points; and
performing a change analysis on the first and second digital models to provide a difference indication representing a difference between the first and second digital models.
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Abstract
A method (100) comprises steps of: receiving a first digital model (102) of a first three-dimensional scene comprising at least one object; receiving a second digital model (112) of a second three-dimensional scene comprising at least one object; and performing a change analysis (102) on the first and second digital models to provide a difference indication representing a difference between the first and second models. In one embodiment a mean square error operation (110) is performed on the first and second digital models to provide a value indicating the difference between the digital models. In another embodiment, a conflation operation is performed on the difference model provided by the change analysis (120) and an object level change database (124) is produced.
40 Citations
27 Claims
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1. A method comprising:
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receiving a first digital model of a first three-dimensional scene comprising a plurality of points and at least one object comprising a cluster of points;
receiving a second digital model of a second three-dimensional scene comprising a plurality of points and at least one object comprising a cluster of points; and
performing a change analysis on the first and second digital models to provide a difference indication representing a difference between the first and second digital models. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27)
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19. An information processing system comprising:
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an input for receiving a first digital model of a first three-dimensional scene comprising a plurality of points and at least one object comprising a cluster of points;
an input for receiving a second digital model of a second three-dimensional scene comprising a plurality of points and at least one object comprising a cluster of points; and
a processor configured for performing a change analysis on the first and second digital models to provide a difference indication representing a difference between the first and second digital models.
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Specification