Method for analog decimation of image signals

Details Method for analog decimation of image signals Method for analog decimation of image signals

1999-04-27

2000-12-26

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

A/d converters

348230, H04N 552, H04N 5335

Patent

active

06166779&

ABSTRACT:
In a digital image processing device such as a portable digital camera, an analog decimation circuit is provided as a front end for the digital video imaging circuit so that the data rate is reduced without substantial loss in fidelity so that the power dissipation is minimized. In a decimation circuit, the data rate is reduced by reducing only higher frequency spectral components of a captured image without substantial loss in fidelity of the remaining spectral components of the captured image. The required amount of digital data processing is so substantially reduced that considerable power savings result. A mixture of decimation modes may be effected using the same circuit.

REFERENCES:
patent: 5995163 (1999-11-01), Fossum

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