Optical alignment of cameras with extended depth of field

Details Optical alignment of cameras with extended depth of field Optical alignment of cameras with extended depth of field

2011-08-16

2011-08-16

Ometz, David L (Department: 2622)

Television

Monitoring, testing, or measuring

Testing of camera

C348S187000

Reexamination Certificate

active

07999851

ABSTRACT:
A method for calibration of an imaging device that includes a sensor and optics for forming an image on the sensor. The method includes making a first image quality measurement, based on an output of the sensor, while imaging a first target at a first distance from the device and varying an offset between the optics and the sensor. A second image quality measurement is made while imaging a second target at a second distance from the device, which is different from the first distance, and varying the offset between the optics and the sensor. A working point of the optics is set relative to the sensor responsively to the first and second image quality measurements.

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