Television – Camera – system and detail – Optics
Patent
1995-08-14
1998-01-27
Faile, Andrew
Television
Camera, system and detail
Optics
348219, H04N 5225
Patent
active
057126852
ABSTRACT:
An imaging device comprising a Focal Plane Array (FPA) image sensor having a grid formed of individual detector elements, arranged in an array of columns and rows, and a mask with a checkerboard pattern of opaque and transparent areas, the mask being located in front of and adjacent to the FPA onto which an image of a scene can be focused by an optical system. The imaging device displaces the mask and FPA with respect to each other in a number of micro-steps that extend in the same direction as that in which a column and a row of the grid extends. The micro-steps in any one direction are of equal lengths which are each a fraction of the length of a detector element. Opaque areas of the mask will then progressively cover equal areas of detector elements in discrete steps for each micro-step movement in one direction at the same time as transparent areas of the mask progressively uncover equal areas of other detector elements for each discrete step. Outputs from the detector elements provide signals for sample slices of the scene for each micro-step and the device reconstructs an image of the scene form those signals. This arrangement allows an enhanced image to be obtained for the scene from the sample slices compared to the image which is obtainable directly from a FPA image sensor or previous types of microscanning arrangements.
REFERENCES:
patent: 4204230 (1980-05-01), Sprague
patent: 4528596 (1985-07-01), Cope
patent: 4574312 (1986-03-01), Anderson
patent: 4595954 (1986-06-01), Endo et al.
patent: 4656517 (1987-04-01), Shida et al.
patent: 4984890 (1991-01-01), Tojo et al.
patent: 5155585 (1992-10-01), Ishikawa
patent: 5180912 (1993-01-01), McEwen et al.
patent: 5241188 (1993-08-01), Mizutani
patent: 5258618 (1993-11-01), Noble
patent: 5291327 (1994-03-01), McEwen
patent: 5301042 (1994-04-01), Blanding
patent: 5335091 (1994-08-01), Palum
patent: 5430481 (1995-07-01), Hynecek
patent: 5444236 (1995-08-01), Ludington et al.
patent: 5561460 (1996-10-01), Katoh et al.
patent: 5565914 (1996-10-01), Motta
"Sampling effects in CdHgTe focal plane arrays--practical results", Dann et al, SPIE vol. 685 Infrared Technology XII--(1986), pp. 123 to 127.
Faile Andrew
Minister of National Defence of Her Majesty's Canadian Governmen
Moe Aung S.
LandOfFree
Device to enhance imaging resolution does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device to enhance imaging resolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device to enhance imaging resolution will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-346108