Results 31 to 40 of about 7,550 (263)

Adaptive Image Enhancement Method for Object Recognition Based on Statistical Photometric Characteristics

open access: yesApplied Sciences
We propose an adaptive image enhancement method based on photometric statistics to improve object detection under adverse illumination conditions. Conventional image enhancement methods primarily target perceptual quality and may alter recognition ...
Chae-yeong Kim, Soon-kak Kwon
doaj   +1 more source

PHOTOMETRIC STEREO SHAPE-AND-ALBEDO-FROM-SHADING FOR PIXEL-LEVEL RESOLUTION LUNAR SURFACE RECONSTRUCTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Shape and Albedo from Shading (SAfS) techniques recover pixel-wise surface details based on the relationship between terrain slopes, illumination and imaging geometry, and the energy response (i.e., image intensity) captured by the sensing system ...
W. C. Liu, B. Wu
doaj   +1 more source

Photometric Ambient Occlusion for Intrinsic Image Decomposition

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2016
We present a method for computing ambient occlusion (AO) for a stack of images of a Lambertian scene from a fixed viewpoint. Ambient occlusion, a concept common in computer graphics, characterizes the local visibility at a point: it approximates how much light can reach that point from different directions without getting blocked by other geometry ...
Daniel Cabrini Hauagge   +3 more
openaire   +2 more sources

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

open access: yesFEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança   +2 more
wiley   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

Nighttime Cloud Cover Estimation Method at the Saishiteng 3850 m Site

open access: yesUniverse, 2022
Cloud cover is critical for astronomical sites because it can be used to assess the observability of the local sky and further the fractional photometric time.
Baoquan Gao   +3 more
doaj   +1 more source

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

open access: yesAdvanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li   +12 more
wiley   +1 more source

THE SCIENTIFIC USE OF THE UKRVO JOINT DIGITAL ARCHIVE: GRBs FIELDS, PLUTO, AND SATELLITES OF OUTER PLANETS

open access: yesOdessa Astronomical Publications, 2014
. In the framework of UkrVO national project the new methods of plate digital image processing are developed. The photographic material of the UkrVO Joint Digital Archive (JDA  –  http://gua.db.ukr-vo.org/vo-mao/DB/archivespecial.php) is used for the ...
I. Vavilova   +8 more
doaj   +1 more source

On the Photometric Accuracy of RHESSI Imaging and Spectrosocopy [PDF]

open access: yesSolar Physics, 2004
2 Figures, full version on http://www.lmsal.com/~aschwand/eprints/2003_photo/index ...
Aschwanden, Markus J.   +6 more
openaire   +2 more sources

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