Introduction to image stabilization / Scott W. Teare, Sergio R. Restaino

By:

Teare, Scott W [aut]

Contributor(s):

Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Tutorial texts in optical engineering ; 73Publisher: Bellingham, Wash. <1000 20th St. Bellingham WA 98225-6705 USA> : SPIE, c2006Description: 1 online resource (x, 98 p. : ill.)ISBN:

9780819478733
0819464341
9780819464347

Subject(s):

Additional physical formats: 0819464341. | 9780819464347. | Erscheint auch als: No title Druck-AusgabeDDC classification:

621.367
621.36/7 22

LOC classification:

TA1655

DOI: DOI: 10.1117/3.685011Online resources:

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Additional physical formats: Also available in print.Summary: The use of image stabilization has grown to the point that it is now a common component of modern optical systems for imaging, communications, and remote-sensing applications. The benefits of image stabilization to astronomical research alone are so rich that it is common for astronomical telescopes, built over the last century, to be retrofitted with fast steering mirrors and tip-tilt sensors to extend their useful lifetimes. This text provides the basics of image stabilization starting with a consideration of the cause of image blurring and an introduction to the components commonly used in constructing a stabilized imaging system. With this foundation, an example image stabilized system is described and used to introduce some of the important parameters in evaluating the performance of image stabilization systems. As image stabilization systems are key components of adaptive optics systems, the more sophisticated sensing and correction devices used in this area are briefly addressed. Rather than being a mathematical, rigorous treatment of image stabilization, it provides the basic ideas in an easy-to-read formatSummary: Chapter 5. Image-Stabilization Systems Simplified. 5.1. Introduction -- 5.2. Integrating sensor and compensator -- 5.3. System control -- 5.4. Model image stabilizer -- 5.5. Information flow for image stabilization -- 5.6. Types of controllersSummary: Chapter 1. Image stabilization. 1.1. Introduction -- 1.2. Wavefronts -- 1.3. Wavefronts and optical systems -- 1.4. Beam wander -- 1.5. Image jitter -- 1.6. Beam wander vs. image jitterSummary: Chapter 2. Effects of turbulence on a wavefront. 2.1. Introduction -- 2.2. Effect of the atmosphere -- 2.3. Description of a wavefront -- 2.4. Angle of arrival fluctuations -- 2.5. Higher-order modes -- 2.6. Global tip and tilt -- 2.7. Effect of the atmosphere on intensity at a receiverSummary: Chapter 3. Wavefront sensing. 3.1. Introduction -- 3.2. Transforming optical path length differences to intensity variations -- 3.3. Interferometry -- 3.4. Phase contrast -- 3.5. Local slope measurementSummary: Chapter 4. Low-order wavefront compensation. 4.1. Introduction -- 4.2. Wavefront compensation -- 4.3. Wavefront correctors for piston, tip and tilt -- 4.4. Use of tip-tilt correction with laser guide stars -- 4.5. Mechanical operation of tip-tilt stagesSummary: Chapter 6. Performance. 6.1. Introduction -- 6.2. Image structure -- 6.3. Strehl ratio -- 6.4. Performance evaluationSummary: Chapter 7. Image-Stabilization Systems. 7.1. Introduction -- 7.2. Astronomical imaging tip-tilt systems -- 7.3. Programs using image stabilization -- 7.4. Beam steering for interferometers -- 7.5. Stabilized long-baseline interferometersSummary: Chapter 8. Alternative approaches. 8.1. Introduction -- 8.2. Liquid crystal spatial light modulators -- 8.3. Orthogonal transfer charge coupled devices -- 8.4. Micro-electro-mechanical systems -- Bibliography -- IndexPPN: PPN: 1018189459Package identifier: Produktsigel: ZDB-50-SPI

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