662 research outputs found
Auditory space representation: from perception to action
No full textde Castro Campos Velten M. Auditory space representation: from perception to action. Bielefeld: Universitätsbibliothek Bielefeld; 2014
Association between sleep patterns and daytime functioning in children with insomnia: The contribution of parent-reported frequency of night waking and wake time after sleep onset
No full textVelten-Schurian K, Hautzinger M, Poets CF, Schlarb A. Association between sleep patterns and daytime functioning in children with insomnia: The contribution of parent-reported frequency of night waking and wake time after sleep onset. Sleep Medicine. 2010;11(3):281-288
Influence of insect or algae meal in broiler diets on growth performance, intestinal microbiota and intestinal microstructure of meat type chicken
No full textOFDVDnet: A Sensor Fusion Approach for Video Denoising in Fluorescence Guided Surgery
No full textOriginal Article: https://proceedings.mlr.press/v227/seets24a.htmlMany applications in machine vision and medical imaging require the capture of images from a scene with very low radiance, which may result in very noisy images and videos. An important example of such an application is the imaging of fluorescently-labeled tissue in fluorescence-guided surgery. Medical imaging systems, especially when intended to be used in surgery, are designed to operate in well-lit environments and use optical filters, time division, or other strategies that allow the simultaneous capture of low radiance fluorescence video and a well-lit visible light video of the scene. This work demonstrates video denoising can be dramatically improved by utilizing deep learning together with motion and textural cues from the noise-free video.This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1747503 and CAREER Grant No. 1846884. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Support was also provided by the Graduate School and the Office of the Vice Chancellor for Research and Graduate Education at the University of Wisconsin-Madison with funding from the Wisconsin Alumni Research Foundation. This project was also supported in part by grant 1UL1TR002373 to UW ICTR from NIH/NCAT
Influence of insect or algae meal in broiler diets on growth performance, intestinal microbiota and intestinal microstructure of meat type chicken
No full textSichtweisen auf und Umgang mit Differenz von Grund- und Förderschullehrkräften in inklusiven Settings
No full textVelten K, Schitow K, Miller S. Sichtweisen auf und Umgang mit Differenz von Grund- und Förderschullehrkräften in inklusiven Settings. In: Skorsetz N, Bonanati M, Kucharz D, eds. Diversität und soziale Ungleichheit. Herausforderungen an die Integrationsleistung der Grundschule . Jahrbuch Grundschulforschung . Vol Band 24. Wiesbaden: Springer VS; 2020: 334
Reproductive interference and fecundity affect competitive interactions of sibling species with low mating barriers: Experimental and theoretical evidence
No full textWhen allopatric species with incomplete prezygotic isolation come into secondary contact, the outcome of their interaction is not easily predicted. The parasitoid wasp Encarsia suzannae (iES), infected by Cardinium inducing cytoplasmic incompatibility (CI), and its sibling species E. gennaroi (EG), not infected by bacterial endosymbionts, may have diverged because of the complementary action of CI and asymmetric hybrid incompatibilities. Whereas postzygotic isolation is now complete because of sterility of F1 hybrid progeny, prezygotic isolation is still incipient. We set up laboratory population cage experiments to evaluate the outcome of the interaction between ES and EG in two pairwise combinations: iES vs EG and cured ES (cES, where Cardinium was removed with antibiotics) vs EG. We also built a theoretical model aimed at exploring the role of life-history differences and asymmetric mating on competitive outcomes. In three of four cages in each treatment, ES dominated the interaction. We found evidence for reproductive interference, driven by asymmetric mating preferences, that gave a competitive edge to ES, the species that better discriminated against heterospecifics. However, we did not find the fecundity cost previously shown to be associated with Cardinium infection in iES. The model largely supported the experimental results. The finding of only a slight competitive edge of ES over EG in population cages suggests that in a more heterogeneous environment the species could coexist. This is supported by evidence that the two species coexist in sympatry, where preliminary data suggest reproductive character displacement may have reinforced postzygotic isolation
Advanced active imaging with single photon avalanche diodes
No full textRanging and imaging in low light level conditions are a key application of active imaging systems. Typically, intensified cameras (ICCD, EBCMOS) are used to sense the intensity of reflected laser light pulses used for illumination. Recent developments in single photon avalanche diodes (SPAD) show, that sensors having single photon counting capabilities are about to revolutionize low light level imaging and laser ranging. These sensors have the ability to count detection events caused by single photons with very high timing precision. By application of statistical measurement means, the sensitivity of such devices can be increased far beyond classical sensing devices and the needed photon flux has significant lower intensities. New SPAD devices enable the development of novel sensing methods and technologies, and open laser ranging and imaging to new fields of application. Here, we focus on novel hardware structures which are under development as well as the application of avalanche photo diode detectors for light-in-flight detection and non-line-of-sight imaging
Passive Inter-Photon Imaging
No full textDigital camera pixels measure image intensities by converting incident light energy into an analog electrical current, and then digitizing it into a fixed-width binary representation. This direct measurement method, while conceptually simple, suffers from limited dynamic range and poor performance under extreme illumination - electronic noise dominates under low illumination, and pixel full-well capacity results in saturation under bright illumination. We propose a novel intensity cue based on measuring inter-photon timing, defined as the time delay between detection of successive photons. Based on the statistics of inter-photon times measured by a time-resolved single-photon sensor, we develop theory and algorithms for a scene brightness estimator which works over extreme dynamic range; we experimentally demonstrate imaging scenes with a dynamic range of over ten million to one. The proposed techniques, aided by the emergence of single-photon sensors such as single-photon avalanche diodes (SPADs) with picosecond timing resolution, will have implications for a wide range of imaging applications: robotics, consumer photography, astronomy, microscopy and biomedical imaging
L. M. Stevenson, and J. J. Velten
No full textL. M. Stevenson, and J. J. Velten.https://mavmatrix.uta.edu/specialcollections_startelegram1950s/26726/thumbnail.jp
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