Non raster image scanning

Details Non raster image scanning Non raster image scanning

2007-09-18

2007-09-18

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S235000

Reexamination Certificate

active

10218225

ABSTRACT:
A method is described for scanning image pixels in a sequence which, in contrast to the traditional and ubiquitous raster scan, groups effectively adjacent and neighboring image pixels together in the scanned sequence, resulting in a much lower bandwidth signal and data stream, and leading directly to bandwidth and storage gains from compression and exploitation of image redundancy. M-Scan, for meandering scan, is synthesized by iterative application of a simple primitive pattern, and analyzed by iterative partitioning. M-Scans achieve unbroken continuity between pixels in the image, and in routine application never need to step between non image adjacent pixels. Whereas a conventional raster has a low vertical and a high horizontal deflection scan rate, M-Scan has intermediate and equal vertical and horizontal rates, and no large jumps related to flyback. An M-Scan signal power spectrum has no comb at the line rate. M-Scans can be used for 3 dimensional images, or time series 2D images, whilst still preserving adjacent pixel connectivity.

REFERENCES:
patent: 5295203 (1994-03-01), Krause et al.
patent: 5446806 (1995-08-01), Ran et al.
patent: 5544338 (1996-08-01), Forslund

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