Results 31 to 40 of about 620,381 (256)
Agriculture, 2023 Crop characterization is considered a prerequisite to devising effective strategies for ensuring successful implementation of sustainable agricultural management strategies.
Naledzani Ndou +3 more
doaj +1 more source
One scan shadow compensation and visual enhancement of color images [PDF]
2009 16th IEEE International Conference on Image Processing (ICIP), 2009 The paper presents a new technique of efficient dynamic range compression and shadow compensation for still color images. The proposed method enhances low light areas while preserving the colors and details, without generating visual artifacts. The approach is based on recursive filtering and contrast stretching techniques, driven by statistical ...
Felix Albu +3 more
openaire +2 more sources
Synergistic Use of LiDAR and APEX Hyperspectral Data for High-Resolution Urban Land Cover Mapping
Remote Sensing, 2016 Land cover mapping of the urban environment by means of remote sensing remains a distinct challenge due to the strong spectral heterogeneity and geometric complexity of urban scenes.
Frederik Priem, Frank Canters
doaj +1 more source
A Physics-Guided Illumination Compensation Framework for Shadow Removal in Remote Sensing Images
Remote SensingShadows in high-resolution urban remote sensing imagery significantly degrade radiometric and structural information, thereby limiting the performance of downstream tasks such as classification and object extraction.
Tingting Zhou +6 more
doaj +1 more source
Face Recognition under Illumination Variation Using Shadow Compensation and Pixel Selection
International Journal of Advanced Robotic Systems, 2012 We propose a robust face recognition method under illumination variation. By using shadow compensation methods, we restore the image of a facial image taken under arbitrary illumination into an image that is similar to the image taken with frontal ...
Sang-Il Choi
doaj +1 more source
Orbis Scholae, 2020 In the present article, we draw on social reproduction theories to explain the increase in the use of “shadow education” (SE) in Germany over the last two decades as a status-based, gender-specific investment strategy of families.
Steve R. Entrich, Wolfgang Lauterbach
doaj +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +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
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Removing the effect light from image and human face detection [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2014 Recent years have attention commencement in the most of the facial animation applications therefore the proposed technic of the way to remove the effect of light from the image by a series of steps in accordance with the algorithm and human face ...
Abd I. Moslih
doaj +1 more source