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Polarization and color techniques in industrial inspection 17-18 June 1999, Munich, Germany by

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Published by SPIE in Bellingham, Wash., USA .
Written in English

Subjects:

  • Automatic test equipment -- Congresses.,
  • Polarization (Light) -- Industrial applications -- Congresses.,
  • Computer vision -- Industrial applications -- Congresses.,
  • Quality control -- Optical methods -- Congresses.

Book details:

Edition Notes

Includes bibliographical references and index.

StatementElzbieta A. Marszalec, Emanuele Trucco, chairs/editors ; sponsored by EOS--European Optical Society ... [et al.].
GenreCongresses.
SeriesProceedings EurOpt series, SPIE proceedings series ;, v. 3826, Proceedings of SPIE--the International Society for Optical Engineering ;, v. 3826.
ContributionsMarszalec, Elzbieta A., Trucco, Emanuele., European Optical Society., Society of Photo-optical Instrumentation Engineers.
Classifications
LC ClassificationsTS156.2 .P65 1999
The Physical Object
Paginationix, 314 p. :
Number of Pages314
ID Numbers
Open LibraryOL6897340M
ISBN 100819433128
LC Control Number00699694
OCLC/WorldCa42472579

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Polarization imaging can be used to improve image quality by reducing the effects of unwanted light reflection, enhancing the quality of images taken in . This pioneering text/reference presents a detailed focus on the use of machine vision techniques in industrial inspection applications. An internationally renowned selection of experts provide insights on a range of inspection tasks, drawn from their cutting-edge work in academia and industry, covering practical issues of vision system integration for real-world applications. The polarization of light is a physical phenomenon of the highest interest in various domains and a recent complete review is published in 1. Observation of polarization properties of a scene . In addition to the major techniques used for evaluation of corrosion of the reinforcing steel described, nondestructive techniques—such as computed tomography, impact echo and magnetic field disturbance, electrochemical noise, and other techniques—have also been used for the inspection and detection of corrosion of reinforcing steels.

The polarization is specified as a transmitting, not receiving antenna regardless of intended use. We frequently use "hand rules" to describe the sense of pola rization. The sense is defined by which hand would be used i n order to point that thumb in File Size: KB. Polarized Light Microscopy. Polarization contrast is a contrast method to detect birefringence, which is a material characteristic that can be found in minerals, polymers, crystals, pharmaceutical samples, biomedical samples and even botanical samples. A petrographic or polarizing microscope is the ideal choice for birefringent materials, which have measurable refracting differences determined by observation zing lens on microscope. These anisotropic objects and substances can be studied under a polarizer, which increases the quality of image contrast more so than other observation techniques, such as . Polarized light microscopy can be used both with reflected (incident or epi) and transmitted light. Reflected light is useful for the study of opaque materials such as ceramics, mineral oxides and sulfides, metals, alloys, composites, and silicon wafers (see Figure 3).

Passive structure borne techniques 40 Radiographic inspection 44 Radiographic imaging 45 Thickness gaging 47 Electromagnetic techniques 53 Direct current methods 53 Eddy current inspection 55 Magnetic particle inspection 57 Microwave inspection 58 Sensors for industrial process control   About this book. All color phenomena that we can observe in coatings have their origin in the interaction between the coating material and visible light. This interaction produces absorption and scattering, which in practice determine the optical behavior of materials.   Fluorescent, quartz halogen, and LED are the most widely used lighting types in machine vision, particularly for small- to medium-scale inspection stations. Metal halide, xenon, and high-pressure sodium are more typically used in large-scale applications or in areas requiring a very bright source. This is achieved by polarization analysis of the reected light from a single point of view. This new approach is applicable to all materials and to all isotropic surface structures excluding mirror like and ideal Lambertian surfaces; therefore, it can be applied in most cases of practical interest.