Results 21 to 30 of about 22,630,990 (261)

A Comparison of Object-Based and Pixel-Based Approaches for Land Use/Land Cover Classification Using LAPAN-A2 Microsatellite Data [PDF]

, 2017
In recent years, small satellite industry has been a rapid trend and become important especially when associated with operational cost, technology adaptation and the missions.
Jalu Tejo Nugroho, Dony Kushardono, Nurwita Mustika Sari, Kushardono, Dony, Zylshal, ., Sari, Nurwita Mustika, Nugroho, Jalu Tejo, Zylshal, . Zylshal   +8 more
core   +1 more source

Large-capacity information hiding scheme based on minimum pixel modification

Egyptian Informatics Journal, 2022
Information hiding is an important technique for security-related applications, and it can be used wildly in many scenarios. Secret data embedding methods are proposed in spatial, frequency, and other domains by researchers in recent years.
Zhang Yu, Zhang Ju, Li Teng, Wang Sha, Pan Dongbo   +4 more
doaj   +1 more source

Surface projection for mixed pixel restoration [PDF]

, 2009
Amplitude modulated full-field range-imagers are measurement devices that determine the range to an object simultaneously for each pixel in the scene, but due to the nature of this operation, they commonly suffer from the significant problem of mixed ...
Michael J. Cree, Dorrington, Adrian A., John P. Godbaz, Larkins, Robert L., Godbaz, John Peter, Robert L. Larkins, Adrian A. Dorrington, Cree, Michael J.   +7 more
core   +1 more source

Using pixel-based and object-based methods to classify urban hyperspectral features

Geodesy and Cartography, 2016
Object-based image analysis methods have been developed recently. They have since become a very active research topic in the remote sensing community. This is mainly because the researchers have begun to study the spatial structures within the data.
Ahmad Hadavand, Mehdi Mokhtarzadeh, Mohammad Javad Valadan Zoej, Saeid Homayouni, Mohammad Saadatseresht   +4 more
doaj   +1 more source

Pixel Crosstalk and Correlation with Modulation Transfer Function of CMOS Image Sensor [PDF]

, 2005
The Modulation Transfer Function is a common metric used to quantify image quality but inter-pixel crosstalk analysis is also of interest. Because of an important number of parameters influencing MTF, its analytical calculation and crosstalk ...
Magali Estribeau, Estribeau, Magali, Magnan, Pierre, Pierre Magnan   +3 more
core   +1 more source

Individual tree-based vs pixel-based approaches to mapping forest functional traits and diversity by remote sensing

International Journal of Applied Earth Observations and Geoinformation, 2022
Plant ecology and biodiversity research have increasingly incorporated trait-based approaches and remote sensing. Compared with traditional field survey (which typically samples individual trees), remote sensing enables quantifying functional traits over
Zhaoju Zheng, Yuan Zeng, Meredith C. Schuman, Hailan Jiang, Bernhard Schmid, Michael E. Schaepman, Felix Morsdorf   +6 more
doaj   +1 more source

Precision scans of the pixel cell response of double sided 3D pixel detectors to pion and x-ray beams [PDF]

, 2011
hree-dimensional (3D) silicon sensors offer potential advantages over standard planar sensors for radiation hardness in future high energy physics experiments and reduced charge-sharing for X-ray applications, but may introduce inefficiencies due to the ...
Akiba, K., Gimenez, E N, Pellegrini, G., D Pennicard, R Plackett, Marchal, J., Bates, R, K Akiba, V V Gligorov, N Tartoni, John, M., C Fleta, Tlustos, L, Lozano, M., K J S Sawhney, Parkes, C.; id_orcid, Nicol, M, Alianelli, L., R Bates, Pennicard, D., Campbell, M, Alianelli, L, D Maneuski, Fleta, C., Pellegrini, G, Gimenez, N., M Gersabeck, Dumps, R., J Buytaert, E N Gimenez, M John, Buytaert, J, Lozano, M, Marchal, J, Pennicard, D, Gallas, A, Plackett, R, M Nicol, L Eklund, Stewart, G, C Parkes, Rodrigues, E, Gallas, A., Dumps, R, Gligorov, V., L Tlustos, M Crossley, Bates, R., Fleta, C, Gimenez, EN, Sawhney, KJS, Parkes, C, Mac Raighne, A, Plackett, R., J Marchal, Nicol, M., Rodrigues, E., Gimenez, E.N., Akiba, K, Stewart, G., L Alianelli, Tlustos, L., Maneuski, D., Gersabeck, M, Collins, P., John, M, Campbell, M., Gligorov, VV, M van Beuzekom, Sawhney, K J S, Tartoni, N, Crossley, M, Crossley, M., M Campbell, Llopart, X., Gersabeck, M., G Stewart, Tartoni, N., P Collins, G Pellegrini, Collins, P, A Gallas, van Beuzekom, M., E Rodrigues, Parkes, C., X Llopart, R Dumps, Eklund, L, Sawhney, K.J.S., Llopart, X, MacRaighne, A., Mac Raighne, A., Gligorov, V.V., Maneuski, D, A Mac Raighne, Eklund, L., Gligorov, V V, M Lozano, Sawhney, S., van Beuzekom, M, Buytaert, J.   +100 more
core   +1 more source

A Comparative Analysis of EO-1 Hyperion, Quickbird and Landsat TM Imagery for Fuel Type Mapping of a Typical Mediterranean Landscape

Remote Sensing, 2014
Forest fires constitute a natural disturbance factor and an agent of environmental change with local to global impacts on Earth’s processes and functions. Accurate knowledge of forest fuel extent and properties can be an effective component for assessing
Giorgos Mallinis, Georgia Galidaki, Ioannis Gitas   +2 more
doaj   +1 more source

Image Segmentation by Agent-Based Pixel Homogenization

IEEE Access, 2023
Image segmentation is the process of partitioning an image into multiple regions or objects, each representing a coherent and meaningful part of the image.
Ernesto Ayala, Erik Cuevas, Daniel Zaldivar, Marco Perez   +3 more
doaj   +1 more source

Edge-Preserving Image Restoration Based on Pixel-by-Pixel Reinforcement Learning [PDF]

Jisuanji gongcheng
High-intensity Gaussian noise tends to blur or destroy the details and structure of an image, resulting in the loss of edge information. Therefore, an edge-preserving image restoration algorithm based on pixel-by-pixel reinforcement learning is proposed.
JIANG Min, CHEN Fei, CHENG Hang, WANG Meiqing
doaj   +1 more source