20 papers · ranked by Valyu relevance
Andrew M Haun
It is sometimes claimed that because the resolution and sensitivity of visual perception are better in the fovea than in the periphery, peripheral vision cannot support the same kinds of colour and sharpness percepts as foveal vision. The fact that a scene nevertheless seems colourful and sharp throughout the visual…
Jing Yu, Yaan Li, Scott Palo
Motion parameter estimation of a ground moving target is an important issue in synthetic aperture radar ground moving target indication (SAR-GMTI) which has significant applications for civilian and military. The SAR image of a moving target may be displaced and defocused due to the radial and along-track velocity…
Pavan Kumar, Ahmed Abubakar Abubakar, Jurhamid Columbres Imlan, Muideen Adewale Ahmed + 6 more
'Muideen Adewale Ahmed' 'Yong-Meng Goh' 'Ubedullah Kaka' 'Zulkifli Idrus' 'Awis Qurni Sazili' 'Gareth Pearce' 'Elbert Lambooij'] Simple Summary A sharp knife of appropriate dimension (blade length) is very important during halal and kosher slaughtering of animals without stunning for a rapid and clean neck severance.…
Krzysztof Dziarski, Arkadiusz Hulewicz, Grzegorz Dombek, Nico P. Avdelidis
'Nico P. Avdelidis'] The number of components of a thermographic temperature measurement uncertainty budget and their ultimate contribution depend on the conditions in which the measurement is performed. The acquired data determine the accuracy with which the uncertainty component is estimated. Unfortunately, when some…
Frederik Püffel, O. K. Walthaus, Victor Kang, David Labonte
Herbivores large and small need to mechanically process plant tissue. Their ability to do so is determined by two forces: the maximum force they can generate, and the minimum force required to fracture the plant tissue. The ratio of these forces determines the required relative mechanical effort; how this ratio varies…
Andy L. Skinner, Christopher Kent, Jonathan M. Rossiter, Christopher P. Benton + 3 more
'Christopher P. Benton' 'Martin G. M. Groen' 'Jan M. Noyes' 'Robert J. van Beers'] The increasing ubiquity of haptic displays (e.g., smart phones and tablets) necessitates a better understanding of the perceptual capabilities of the human haptic system. Haptic displays will soon be capable of locally deforming to…
Rosa Martinez-Corral, Kee-Myoung Nam, Angela H. DePace, Jeremy Gunawardena
The Hill functions, ℋ_h_(x) = x^h^/(1 + x^h^), have been widely used in biology for over a century but, with the exception of ℋ_1_, they have had no justification other than as a convenient fit to empirical data. Here, we show that they are the universal limit for the sharpness of any input-output response arising from…
Jurhamid Columbres Imlan, Ubedullah Kaka, Yong-Meng Goh, Zulkifli Idrus + 5 more
'Zulkifli Idrus' 'Elmutaz Atta Awad' 'Ahmed Abubakar Abubakar' 'Tanbir Ahmad' 'Hassan N. Quaza Nizamuddin' 'Awis Qurni Sazili'] Simple Summary The role of knife sharpness in slaughtering animals, from the perspective of animal welfare, is likely subconsciously ignored by the masses involved in the abattoir industry.…
J. W. Harvey
The National Solar Observatory (NSO) Synoptic Optical Long-term Investigations of the Sun (SOLIS) Vector SpectroMagnetograph (VSM) is sealed and was designed to be filled with helium at slightly above ambient pressure. After 11 years of operation filled with helium, an acute shortage of helium prompted a test using…
Sabine Leske, Tor Endestad, Vegard Volehaugen, Maja D. Foldal + 3 more
Periodic sensory inputs entrain oscillatory brain activity, reflecting a neural mechanism that might be fundamental to temporal prediction and perception. Most environmental rhythms, such as music or speech, however, are rather quasi-periodic. Research has shown that neural tracking of speech is driven by modulations…
MOHAMED HASSAN, ALEKSANDAR VAKANSKI, BOYU ZHANG, MIN XIAN
Effective clinical deployment of deep learning models in healthcare demands high generalization performance to ensure accurate diagnosis and treatment planning. In recent years, significant research has focused on improving the generalization of deep learning models by regularizing the sharpness of the loss landscape.…
Barbara Dembin, Franco Severo
We prove that the supercritical phase of Voronoi percolation on R d , d ≥ 3, is well behaved in the sense that for every p > pc(d) local uniqueness of macroscopic clusters happens with high probability. As a consequence, truncated connection probabilities decay exponentially fast and percolation happens on sufficiently…
Christopher DiMattina, Eden E. Sterk, Madelyn G. Arena, Francesca E. Monteferrante
To correctly parse the visual scene, one must detect edges and determine their underlying cause. Previous work has demonstrated that image-computable neural networks trained to differentiate natural shadow and occlusion edges exhibited sensitivity to boundary sharpness and texture differences. Although these models…
Bei Xiao, Shuang Zhao, Ioannis Gkioulekas, Wenyan Bi + 1 more
When judging optical properties of a translucent object, humans often look at sharp geometric features such as edges and thin parts. Analysis of the physics of light transport shows that these sharp geometries are necessary for scientific imaging systems to be able to accurately measure the underlying material optical…
Carasso, Alfred S., Vladar, Andras E.
A non-iterative direct blind deconvolution procedure, previously used successfully to sharpen Hubble Space Telescope imagery, is now found useful in sharpening nanoscale scanning electron microscope (SEM) and helium ion microscope (HIM) images. The method is restricted to images g(x, y), whose Fourier transforms ˆg(ξ…
Curdin Maissen, Shu Chen, Elizaveta Nikulina, Alexander A. Govyadinov + 1 more
'Alexander A. Govyadinov' 'Rainer Hillenbrand'] Scattering-type scanning near-field microscopy (s-SNOM) at terahertz (THz) frequencies could become a highly valuable tool for studying a variety of phenomena of both fundamental and applied interest, including mobile carrier excitations or phase transitions in 2D…
Yung-Kun Liu, Ching‐En Lin, J. W. Nam, Pisin Chen
Quantitative Schlieren Imaging Authors: ['Yung-Kun Liu' 'Ching‐En Lin' 'J. W. Nam' 'Pisin Chen'] This paper presents an enhanced optical configuration for a single-pass quantitative Schlieren imaging system that achieves an optical resolution of approximately 4.6 µm. The modified setup decouples sensitivity from…
Adva Raz, Hila Gubi, Adam Cohen, Fernando Patolsky
Biomarkers detection have become essential in medical diagnostics and early detection of life-threatening diseases. Modern-day medicine relies heavily on painful and invasive tests, the extraction of large volumes of venous blood being the most common tool of biomarker detection. These tests are time-consuming…
Yide Zhang, Ufuk Yilmaz, Liam O’Faolain, Bernhard Lendl + 1 more
Atomic force microscopy-infrared spectroscopy (AFM-IR) is a photothermal scanning probe technique that combines nanoscale spatial resolution with the chemical analysis capability of mid-infrared spectroscopy. Using this hybrid technique, chemical identification down to the single molecule level has been demonstrated.…
Saif Bunni, Heikki J. Nieminen
It has been recently demonstrated that use of ultrasound increases the tissue yield in ultrasound-enhanced fine-needle aspiration biopsy (USeFNAB) as compared to conventional fine-needle aspiration biopsy (FNAB). To date, the association between bevel geometry and needle tip action has not been widely explored. In this…