Method, apparatus, and system for characterizing an optical system
AssigneeDatamax-O'Neil Corporation
InventorsH Sprague Ackley, Si Qian, Thomas Axel Jonas Celinder, Sebastien D'Armancourt
Life of this patent
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Abstract
Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.
Claims20
An optical system comprising:
- one or more optical sensors to capture at least one image of a printed image;
- a processing circuitry in electronic communication with the one or more optical sensors, the processing circuitry being configured to:
- receive a print job specification defining an image to be printed on a print media;
- derive characteristic data of the image to be printed on the print media from the print job specification;
- identify at least a first region and a second region of the image to be printed on the print media based on the characteristic data;
- and
- capture, using the one or more optical sensors, a first image of the first region of the printed image at a first resolution and a second image of the second region of the printed image at a second resolution that is different from the first resolution.
A method for improving image processing efficiency of an optical system, the method comprising:
- receiving a print job specification defining an image to be printed on a print media;
- deriving characteristic data of the image to be printed on the print media from the print job specification;
- identifying at least a first region and a second region of the image to be printed on the print media based on the characteristic data;
- and
- capturing, using optical sensors, a first image of the first region of the printed image at a first resolution and a second image of the second region of the printed image at a second resolution that is different from the first resolution.
A method of calibrating an optical system, the method comprising:
- printing a first test pattern comprising bars and spaces of defined specifications;
- scanning the first test pattern;
- analyzing the scanned first test pattern to validate the scanned first test pattern according to a pre-defined acceptance criterion;
- recording thermal management settings of a printer based on the validation of the first test pattern;
- printing a second test pattern at the recorded thermal management settings;
- and
- calibrating the optical system using an effective aperture size of the optical system determined based on analyzing the second test pattern.
Dependencies are inferred from the claim text.