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US 5,675,623 AGranted
Two dimensional image processing having linear filter within a CCD array
AssigneeLucent Technologies Inc.
InventorKevin A. Shelby
Life of this patent
Estimating the term…
Abstract
Signal processing involves accruing signal charge at photosensors, accumulating samples of the content of several adjacent photosensors in individual potential wells of a CCD according to a predetermined pattern, shifting them into individual stages of a first group of registers, and shifting the contents of the first group of registers into a second register to create a linear filtering operation. Accumulating the samples averages the content of adjacent pixels.
Claims18
An image processing method, comprising:
- a step of sampling contents of a plurality of photosensors in a CCD array at successive instances by individual stages of a first group of registers in the CCD array;
- a step of shifting the contents of said first group of registers into a second register within the CCD array;
- establishing a linear filtering operation within the CCD array by adding samples of the contents of a plurality of said photosensors in different individual ones of said stages of one register within the CCD array to the samples of the contents in the stages in other registers of the first group within the CCD array on a predetermined basis.
Dependencies are inferred from the claim text.