Results 251 to 260 of about 3,417,405 (292)
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Multi-aperture anomaly detector for clutter background
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016Without priori information, anomaly detector has more important utility compared with supervised target detection. Many classical anomaly detectors have obtained perfect performance in many situations. However, there still have two problems which are correlated with accuracy of anomaly detector.
Min Li +3 more
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Towards an ultrathin multi-aperture microscope
Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XVIII, 2020Recent biomedical developments towards compact, mobile, decentralized and system-integrated diagnostic platforms require automated and miniaturized microscopy technologies. Reducing system dimensions by downsizing classical single aperture optics limits either the field of view (FOV) or resolution. However, arranging multiple miniaturized objectives in
Stephan Schacke +7 more
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Multi-aperture snapshot compressive hyperspectral camera
Optics Letters, 2018In this Letter, we present a new snapshot hyperspectral (HS) camera based on a multi-aperture design. The technique uses an array of modified Fabry-Perot resonators together with a lens array in order to acquire an array of spectrally multiplexed modulated sub-images.
Yaniv Oiknine +2 more
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Multi-Aperture 3D Imaging Systems
2008 IEEE Aerospace Conference, 2008With a multi-aperture imaging system, one creates a large imaging aperture by combining the light from a series of distributed telescopes. In doing this, one can construct a fine-resolution imaging system with reduced volume. We present work on multi-aperture, active imaging systems that use coherent detection and digital image formation.
Joseph C. Marron, Richard L. Kendrick
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A Multi-Aperture Cryogenic Storage Cell
Journal of Applied Physics, 1968Two types of superconducting memory cells are now being considered: the continuous-film memory and cryotron-switched storage loops. The former suffer from low cell operating range compared to cell-to-cell variation. The cryotron cells, although having a wider operating range, must be switched very rapidly to have a detectable output signal.
J. L. Mundy, V. L. Newhouse
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Imaging spectroscopy with a multi-aperture camera
2009 IEEE LEOS Annual Meeting Conference Proceedings, 2009A new type of spectroscopic sensitive camera was used in a clinical trial at the National Rehabilitation Hospital aimed at monitoring the healing process of several types of skin wounds. Results showed signi oxygen saturation related to a decrease in wound size.
Jessica C. Ramella-Roman +2 more
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A multi-aperture imager for a wearable camera
SPIE Proceedings, 2014A compact multi-aperture lens system consists of separate units deployed on a bendable substrate. Each unit includes a fast lens and wobbling sensor which allow high resolution image over a limited field of view.
Mamoru Miyawaki +3 more
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Digital focusing and refocusing with thin multi-aperture cameras
SPIE Proceedings, 2012For small camera modules in consumer applications, such as mobile phones or webcams, size and cost are important constraints. An autofocus system increases both size and cost and can degrade optical performance by misalignment. Therefore, a monolithic optical system with a fixed focus is preferable for these applications.
Alexander Oberdörster +4 more
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Performance Metrics for Multi-aperture Computational Imaging Sensor
Frontiers in Optics, 2005Determining the effective MTF, SNR and Sensor geometries of multi-aperture computational imaging architectures will allow the National Image Interpretability Rating Scale to be applied to computational imagers. An approach for determining these values is described.
Vikrant Bhakta +2 more
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Dense lightfield reconstruction from multi aperture cameras
2014 IEEE International Conference on Image Processing (ICIP), 2014Plenoptic cameras based on micro lens arrays as well as multi aperture cameras are able to capture a multitude of images with slightly shifted viewpoints. Although the amount of parallax between adjacent views is limited, precautions have to be taken in order to avoid alias when performing direct lightfield rendering.
Matthias Ziegler 0001 +5 more
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