Results 211 to 220 of about 17,335 (263)
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Applied Optics, 2011
Large-aperture linear diffractive axicons are optical devices providing achromatic nondiffracting beams with an extended depth of focus when illuminated by white light sources. Annular apertures introduce chromatic foci separation, making chromatic imaging possible despite important radiometric losses.
Bialic, Emilie +1 more
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Large-aperture linear diffractive axicons are optical devices providing achromatic nondiffracting beams with an extended depth of focus when illuminated by white light sources. Annular apertures introduce chromatic foci separation, making chromatic imaging possible despite important radiometric losses.
Bialic, Emilie +1 more
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Multispectral image compression
Proceedings. Fourteenth International Conference on Pattern Recognition (Cat. No.98EX170), 2002Image compression has been one of the mainstream research topics in image processing. The research usually focuses on compressing images that are visible to humans. Images are usually gray-level images or RGB color images. Advances in technology enable one to make the detailed processing of spectral color features in the images.
Arto Kaarna +3 more
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Multispectral imaging of paintings
IEEE Signal Processing Magazine, 2008Identifying the materials of a painting is a crucial step in any conservation process. When the objective is to prepare an intervention plan, it is absolutely necessary to understand the matters the restorer is going to encounter. Also, when the aim is a better understanding of the artwork, and perhaps an authenticity check, it is highly relevant to ...
Anna Pelagotti +3 more
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Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348), 2003
The shortcomings of the conventional three-channel imaging are rooted in metamerism problems. To avoid these problems multispectral imaging is introduced as an complementary approach. This imaging technology uses the complete spectral information of the original image, and, hence, avoids the problems due to metamerism.
Friedhelm König, Werner Praefcke
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The shortcomings of the conventional three-channel imaging are rooted in metamerism problems. To avoid these problems multispectral imaging is introduced as an complementary approach. This imaging technology uses the complete spectral information of the original image, and, hence, avoids the problems due to metamerism.
Friedhelm König, Werner Praefcke
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Analysis of the Multispectral and SAR Image
2021 IEEE 6th International Conference on Computer and Communication Systems (ICCCS), 2021The SAR image and the multispectral image are both used for dynamic monitoring, mineral resources investigation, urban and rural monitoring and evaluation, traffic network exploration, forest resources investigation, desertification monitoring, and so on. The multi-spectral and SAR image fusion to improve the classify quality is discussed in this paper,
Shuchun Zhang +5 more
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Multispectral imaging and image processing
SPIE Proceedings, 2014The color accuracy of conventional RGB cameras is not sufficient for many color-critical applications. One of these applications, namely the measurement of color defects in yarns, is why Prof. Til Aach and the Institute of Image Processing and Computer Vision (RWTH Aachen University, Germany) started off with multispectral imaging.
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Advances in Multispectral Confocal Imaging
Confocal, Multiphoton, and Nonlinear Microscopic Imaging, 2003Due to the tendencies in biological research towards multiple stainings and increased use of newly developed dyes like fluorescent proteins, the application areas of multispectral confocal imaging increase rapidly. We present here the most recent advances in this technology, particularly concerning but not limited to the excitation module, the ...
Volker Seyfried +3 more
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Multispectral imaging of the archimedes palimpsest
32nd Applied Imagery Pattern Recognition Workshop, 2003. Proceedings., 2004Multispectral imaging techniques are being applied to improve the readability of the text in a tenth-century manuscript that includes seven treatises of Archimedes. The manuscript was erased and overwritten about 200 years later with the text of a Christian prayer book.
Roger L. Easton Jr. +2 more
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Multispectral imaging of hand eczema
Contact Dermatitis, 2019AbstractBackgroundHand eczema is a disease with large variation in clinical presentation and severity. Scoring systems for quantitative severity assessment exist. However, they are observer‐dependent. An objective quantitative tool for scoring of hand eczema would improve categorization of hand eczema.ObjectiveTo investigate the usefulness of ...
Marianne Hald +6 more
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