Results 51 to 60 of about 49,732,844 (278)

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, E. Cristiani, FALCONE, Maurizio, SEGHINI, Alessandra, Maurizio Falcone, M. Falcone, CRISTIANI, Emiliano, Alessandra Seghini, A. Seghini   +8 more
core   +1 more source

Shadow-constrained shape-from-shading for pixel-wise 3D surface reconstruction at the lunar south pole

Geo-spatial Information Science
High-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, Bo Wu, Wai Chung Liu, Yue Peng, Sergey Krasilnikov, Liyan Sheng, Song Peng   +6 more
doaj   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source

Modification of the convexity prior but not the light-from-above prior in visual search with shaded objects

, 2007
Studies of visual search performance with shaded stimuli, in which the target is rotated by 180º relative to the distracters, typically demonstrate more efficient performance in stimuli with vertical compared to horizontal shading gradients. In addition,
Champion, R.A., Adams, Wendy J., Wendy J Adams, Adams, W.J., Champion, Rebecca A., Rebecca A Champion   +5 more
core   +1 more source

Shape From Shading [PDF]

, 2006
Shape From Shading is the process of computing the threedimensional shape of a surface from one image of that surface. Contrary to most of the other three-dimensional reconstruction problems (for example, stereo and photometric stereo), in the Shape From
Prados, Emmanuel, Faugeras, Olivier
core   +4 more sources

A Novel Approach to Droplet’s 3D Shape Recovery Based on Mask R-CNN and Improved Lambert–Phong Model

Micromachines, 2018
Aiming at the demand for extracting the three-dimensional shapes of droplets in microelectronic packaging, life science, and some related fields, as well as the problems of complex calculation and slow running speed of conventional shape from shading ...
Shizhou Lu, Chenliang Ren, Jiexin Zhang, Qiang Zhai, Wei Liu   +4 more
doaj   +1 more source

Pharmacological chromatin remodeling enhances response to estrogen therapy in ER+ breast cancer

Molecular Oncology, EarlyView.
Estrogen therapy elicits clinical benefit in ~ 30% of patients with endocrine‐resistant estrogen receptor (ER)‐positive breast cancer. Based on findings that ER transcriptional activation underlies response to estrogen therapy, we tested the effects of epigenetic dysregulation via pharmacological inhibition of histone deacetylases (HDACi).
Anneka L. Johnson Thomas, Barbara Karakyriakou, Patricia C. Muskus, Alyssa M. Roberts, Justin Rendleman, Alexa Warren, Hanxu Lu, Kimberly A. Birmingham, Malone K. Friedman, Abigail E. Goen, Huijuan Yang, Owen M. Wilkins, Fred W. Kolling, Eugene Demidenko, Julie M. Jorns, Brock C. Christensen, Todd W. Miller   +16 more
wiley   +1 more source

OPTIMIZATION OF DEM INTERPOLATION

Journal of Engineering, 2010
Digital Elevation Models (DEMs) are simply regular grids of elevation measurements over the land surface. DEMs are mainly extracted by applying the technique of stereo measurements on images available from photogrammetry and remote sensing.
Hussain Zaydan Ali, Ahmed Kasim Hameed AL- Akaby   +1 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

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source