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COMPENSATING FOR GEOMETRIC DISTORTION OF IMAGES IN CONSTRAINED PROCESSING ENVIRONMENTS
COMPENSATING FOR GEOMETRIC DISTORTION OF IMAGES IN CONSTRAINED PROCESSING ENVIRONMENTS
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机译:补偿约束处理环境中图像的几何失真
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摘要
An image processing method determines a geometric transform of a suspect image by efficiently evaluating a large number of geometric transform candidates in environments with limited processing resources. Processing resources are conserved by using complementary methods for determining a geometric transform of an embedded signal. One method excels at higher geometric distortion, and specifically, distortion caused by greater tilt angle of a camera. Another method excels at lower geometric distortion, for weaker signals. Together, the methods provide a more reliable detector of an embedded data signal in image across a larger range of distortion while making efficient use of limited processing resources in mobile devices.
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