Results 21 to 30 of about 1,226,344 (298)
Single-pixel ptychography [PDF]
Optics Letters, 2021 Ptychography is a predominant non-interferometric technique to image large complex fields but with quite a narrow working spectrum, because diffraction measurements require dense array detection with an ultra-high dynamic range. Here we report a single-pixel ptychography technique that realizes non-interferometric and non-scanning complex-field imaging
Meng Li +8 more
openaire +2 more sources
Near Real-Time Detection of EVI Time-Series Breakpoints Using Bayesian Inference for Deforestation Monitoring in the Chaco Forest [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesDeforestation poses a significant threat to natural ecosystems, particularly in Argentina’s Chaco region—one of the world’s most rapidly changing forest areas.
F. Grings +14 more
doaj +1 more source
Измерение, мониторинг, управление, контроль, 2023 Background. The necessity of creating diagnostic systems for vibration-loaded objects is shown. It is noted that non-contact systems have sufficient capabilities to determine the vibration amplitude.
Nikita S. Reuta
doaj +1 more source
Pixel Features for Self-organizing Map Based Detection of Foreground Objects in Dynamic Environments [PDF]
, 2016 Among current foreground detection algorithms for video sequences, methods based on self-organizing maps are obtaining a greater relevance. In this work we propose a probabilistic self-organising map based model, which uses a uniform distribution to ...
Domínguez, Enrique +4 more
core +1 more source
RESEARCH AND PROTOTYPING METHODS OF STEGANOGRAPHY USING MOSAIC
Сучасні інформаційні системи, 2020 The paper considers the possibility of using a mosaic composed of many miniature images to hide the fact of text information transmission. The results of the study of optimal mosaic construction when using steganographic methods of hiding information are
Volodymyr Pevnev, Yurii Voikov
doaj +1 more source
Fully Depleted, Trench-Pinned Photo Gate for CMOS Image Sensor Applications
Sensors, 2020 Tackling issues of implantation-caused defects and contamination, this paper presents a new complementary metal−oxide−semiconductor (CMOS) image sensor (CIS) pixel design concept based on a native epitaxial layer for photon detection, charge ...
Francois Roy +10 more
doaj +1 more source
Measurement of the energy resolution and calibration of hybrid pixel detectors with GaAs:Cr sensor and Timepix readout chip [PDF]
, 2015 This paper describes an iterative method of per-pixel energy calibration of hybrid pixel detectors with GaAs:Cr sensor and Timepix readout chip. A convolution of precisely measured spectra of characteristic X-rays of different metals with the resolution ...
Bell, S. T. +16 more
core +3 more sources
Using a Neural Network Method to Solve Image Segmentation Problems
Современные информационные технологии и IT-образование, 2022 Image segmentation plays an important role in detecting various diseases and pathologies through medical image processing. Over the years, a number of traditional approaches such as the binary threshold method (Otsu method), watershed method, and K-means
Moutouama N’dah Bienvenu Mouale
doaj +1 more source
Micromachines, 2020 In recent years, the characteristics of the graphene/crystalline silicon junction have been frequently discussed in the literature, but study of the graphene/polycrystalline silicon junction and its potential applications is hardly found.
Yu-Yang Tsai +4 more
doaj +1 more source