Keystone compensation for image storage systems
| Autor: | Werner E. L. Haas, Joseph F. Stephany |
|---|---|
| Rok vydání: | 1976 |
| Předmět: |
Image storage
business.industry Computer science Materials Science (miscellaneous) ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Image processing Single parameter Optical storage Industrial and Manufacturing Engineering law.invention Image (mathematics) Compensation (engineering) Lens (optics) Optics law Simple (abstract algebra) Distortion Business and International Management business |
| Zdroj: | Applied Optics. 15:1626 |
| ISSN: | 1539-4522 0003-6935 |
| DOI: | 10.1364/ao.15.001626 |
| Popis: | Certain types of optical storage devices are preferentially read out with off-axis illumination. This method, however, produces keystohing of the projected image, which is a serious disadvantage. In this paper a double Keystone system is analyzed in which a controlled distortion is introduced by the input system to compensate for the distortion by the projection system. The necessary equations to solve the system are presented in terms of a single parameter which makes a simple solution practical. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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