Results 41 to 50 of about 49,732,844 (280)
Direct computation of shape from shading [PDF]
Proceedings of 12th International Conference on Pattern Recognition, 2002 Disponible dans les fichiers attachés à ce ...
Michael J. Brooks, Wojciech Chojnacki
openaire +3 more sources
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Shape and Illumination from Shading Using the Generic Viewpoint Assumption [PDF]
, 2014 The Generic Viewpoint Assumption (GVA) states that the position of the viewer or the light in a scene is not special. Thus, any estimated parameters from an observation should be stable under small perturbations such as object, viewpoint or light ...
Dilip Krishnan +7 more
core
Applied Sciences, 2019 In the modern engineering field, recovering the machined surface topography is important for studying mechanical product function and surface characteristics by using the shape from shading (SFS)-based reconstruction method.
Wei-Chao Shi +3 more
doaj +1 more source
Local Spherical Harmonics for Facial Shape and Albedo Estimation
IEEE Access, 2020 In this paper, we present a novel facial albedo and 3D shape recovery method with a local spherical harmonic illumination model. From a face in an image, the proposed method can produce a high-quality 3D shape and albedo using a novel parameterization of
Suwoong Heo +3 more
doaj +1 more source
Molecular Oncology, EarlyView.Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla +9 more
wiley +1 more source
Numerical Solution of the Perspective Shape-from-Shading Problem
, 2005 We study the Perspective Shape from Shading problem from the numerical point of view presenting a simple algorithm to compute its solution. The scheme is based on a semi-Lagrangian approximation of the first order Hamilton-Jacobi equation related to the ...
Emiliano Cristiani +8 more
core +1 more source
Geo-spatial Information ScienceHigh-resolution digital elevation models (DEMs) of the lunar surface are crucial for lunar exploration missions and scientific research. The emergence of advanced technologies, such as Shape-from-Shading (SfS), has enabled the generation of pixel-wise ...
Ranye Jia +6 more
doaj +1 more source
Perception of shape from shading
Nature, 1988 Since the time of Leonardo Da Vinci there has been very little research on how human observers perceive shape from shading. Our experiments suggest that shading is a primitive visual dimension that is extracted relatively early in visual processing. More recently, our research has focused on the question of how information about shading interacts with ...
openaire +2 more sources