Background equalization for laser line scan data

Details Background equalization for laser line scan data Background equalization for laser line scan data

1998-04-27

2000-08-22

Rogers, Scott

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

382275, 382168, 382312, G06T 500, G06T 540, G06T 550

Patent

active

061084573

ABSTRACT:
A method of and sensor for processing a laser line scan image to enhance portion representing otherwise obscure objects from background. Two contrast enhancement routines are applied to enhance obscured objects in the low signal strength regions. One is a background equalization routine employing an overlapping piecewise least squares error technique that equalizes the high/low signal strength regions. The second is a local histogram clipping routine that applies a moving window histogram clip to enhance details in the low strength regions without effecting the high strength regions.

REFERENCES:
patent: 5983120 (1999-11-01), Groner et al.
patent: 5995656 (1999-11-01), Kim

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