Method for generating a focused image of an object

Details Method for generating a focused image of an object Method for generating a focused image of an object

2007-05-22

2007-05-22

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image enhancement or restoration

Focus measuring or adjusting

C382S141000, C382S205000, C382S220000, C382S300000, C396S077000, C348S208120, C348S345000

Reexamination Certificate

active

10034288

ABSTRACT:
A method is provided for computing a composite image representing a focused image of an object in an application of machine vision in an optical inspection system. An image tessellated into focus regions is evaluated by region for fine feature sharpness. A sharpness image is computed for each focused region using a fine feature sharpness measurement. A focused composite image is computed by combining as a weighted average, the images at several focus settings, using the sharpness image at each focus setting as the weight. The focused composite image can be further analyzed, inspected, or otherwise processed.

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