Hyperacuity sensing

Details Hyperacuity sensing Hyperacuity sensing

1995-04-21

1996-07-30

Greening, Wendy

Television

Camera, system and detail

Array of photocells

348294, 257291, H04N 312, H04N 314, H04N 5335

Patent

active

055416527

ABSTRACT:
Methods and devices for implementing hyperacuity sensing are provided. The imaging device comprises a sensor array including sensor elements, each of which provides intracellular spatial intensity distribution information necessary to render images with subpixel accuracy. The method includes the step of hyperacuity sensing implemented using sensors that output signals that are dependent upon the internal intensity distribution of impinging light. The output signals are processed to determine the internal intensity distribution, which can then be used to produce a hyperacuity image. Such a hyperacuity image has enhanced definition of edges, and reduced artifacts such as jaggies and moire effects.

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patent: 4771471 (1988-09-01), Kitamura
patent: 5151787 (1992-09-01), Park
patent: 5204910 (1993-04-01), Lebeau
patent: 5231677 (1993-07-01), Mita et al.
Subpixel measurments using a moment based edge operator Lyvers, E. P. IEEE, vol. 11, No. 12 Dec. 1989.
A Simple Method of segmentaction with sub pixel accuracy Forte, P. IEE 1989.
Boundary description and measurement with sub-pixel/voxel accuracy 1992.
Precise localization of geometrically known imge edges in noisy environment Xu, C. Nov. 1990.

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