Results 31 to 40 of about 107,797 (245)
Variational Uncalibrated Photometric Stereo under General Lighting [PDF]
, 2019 Photometric stereo (PS) techniques nowadays remain constrained to an ideal laboratory setup where modeling and calibration of lighting is amenable. To eliminate such restrictions, we propose an efficient principled variational approach to uncalibrated PS
Cremers, Daniel +5 more
core +4 more sources
Motion Objects Segmentation and Shadow Suppressing without Background Learning
Journal of Engineering, 2014 An approach to segmenting motion objects and suppressing shadows without background learning has been developed. Since wavelet transformation indicates the position of sharper variation, it is adopted to extract the information contents with the most ...
Y.-P. Guan
doaj +1 more source
Sharing a Large Secret Image Using Meaningful Shadows Based on VQ and Inpainting [PDF]
KSII Transactions on Internet and Information Systems, 2015 This paper proposes a novel progressive secret image-hiding scheme based on the inpainting technique, the vector quantization technique (VQ) and the exploiting modification direction (EMD) technique. The proposed scheme first divides the secret image into non-overlapping blocks and categorizes the blocks into two groups: complex and smooth.
openaire +1 more source
Investigating design issues of context-aware mobile guides for people with visual impairments [PDF]
, 2004 While mobile wayfinding systems for visually impaired people offer huge potential, most insufficiently address the differences between visual impairments and contextual environments, and offer very little context-awareness - usability issues of which are
Bradley, N.A., Dunlop, M.D.
core +1 more source
Using Poetry to Teach about Minerals in Earth Science Class [PDF]
, 2004 This article describes how a high school earth science teacher and a college education professor team-taught a lesson to ninth graders on using poetry to learn about minerals.
Audrey Rule +2 more
core +1 more source
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
OCCLUDED AREA REMOVING FROM HANDHELD LASER SCANNER DATA DURING 3D BUILDING MODELLING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 3D building modelling has been turned to be one of the most interesting and hottest subjects in photogrammetry in last two decades, and it seems that photogrammetry provides the only economic means to acquire truly 3D city-data.
F. Sadeghi, H. Arefi
doaj +1 more source
Evidence for the Galactic X-ray Bulge II
, 1998 A mosaic of 5 \ros~PSPC pointed observations in the Galactic plane ($l\sim25^{\circ}$) reveals X-ray shadows in the $0.5-2.0$ keV band cast by distant molecular clouds. The observed on-cloud and off-cloud X-ray fluxes indicate that $\sim15$% and $\sim37$%
John P. Finley +6 more
core +1 more source
Shadows along the spiritual pathway [PDF]
, 2015 Contemporary spirituality discourses tend to assume that a canopy of light and love overarches all spiritual pathways. Unfortunately, the dark side of humanity cannot be spirited away so easily, and aberrations of personal spiritual development ...
Humphrey, Caroline
core +1 more source
Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
wiley +1 more source