Scanning techniques using hierarchical set of curves

Details Scanning techniques using hierarchical set of curves Scanning techniques using hierarchical set of curves

1987-07-14

1989-06-27

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358217, 358209, 358 83, 340744, 364518, 365 23, H04N 701, H04N 530, H04N 330, H04N 700

Patent

active

048434680

ABSTRACT:
Conventionally, transmission of television images is performed by Raster scanning. To avoid the problems associated with flyback, and the limiting of Raster scanning to image scanning standards it is proposed to transmit images by scanning along a locus defined by a fractal curve. A Peano curve is particularly suitable. Image resolution may be varied by varying the order of curve used to scan the image. Smoothing of a curve of a given order results in a graceful degradation to a curve of lower order so that the image created by a given order is still recognizable when displayed by a lower or higher order.

REFERENCES:
patent: 2222934 (1940-11-01), Blumstein
patent: 2899495 (1959-11-01), Gibson et al.
patent: 2911463 (1959-11-01), Kretzmer
patent: 3200195 (1965-08-01), Davis et al.
patent: 3309461 (1967-03-01), Deutsch
patent: 3342937 (1967-09-01), Deutsch
patent: 3499980 (1970-03-01), Jmierciak
patent: 3792196 (1974-02-01), Wendland

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