Results 171 to 180 of about 4,354 (218)
Anisotropic Scattered Data Interpolation for Pushbroom Image Rectification
IEEE Transactions on Image Processing, 2014 This paper deals with fast and accurate visualization of pushbroom image data from airborne and spaceborne platforms. A pushbroom sensor acquires images in a line-scanning fashion, and this results in scattered input data that need to be resampled onto a uniform grid for geometrically correct visualization. To this end, we model the anisotropic spatial
Ringaby, Erik +5 more
exaly +5 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Advanced pushbroom hyperspectral LWIR imagers
SPIE Proceedings, 2009Performance studies and instrument designs for hyperspectral pushbroom imagers in thermal wavelength region are introduced. The studies involve imaging systems based on both MCT and microbolometer detector. All the systems employ pushbroom imaging spectrograph with transmission grating and on-axis optics.
Hannu Holma +4 more
openaire +1 more source
Simulator of pushbroom scan spectrometer
Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002The pushbroom scan is done by a number of sensor elements, so it includes a sampling process inherently before resampling on the ground. In contrast the whiskbroom scan does not have such a pre-sampling process. Combining this pre-sampling process with some CCD features, for example the cross talk, the aperture characteristics, the arrangement pattern ...
H. Koshiishi +4 more
openaire +1 more source
The Optical Pushbroom in action
Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides: Applications and Fundamentals, 1997The area of nonlinear pulse interactions in Bragg grating structures, although largely unexplored, contains many interesting and novel effects. Perhaps the simplest of these is the CW switching of a weak probe by a strong pump. Recall that a Bragg grating reflects strongly around the Bragg resonance frequency ω0 which is inversely proportion to the ...
N. G. R. Broderick +4 more
openaire +1 more source
Field deployable pushbroom hyperspectral imagining polarimeter
SPIE Proceedings, 2016ABSTRACT Hyperspectral polarimetry is demonstrated to measure the spect rum and polarization state of a scene. This information is important to identify material properties for applications such as remote sensing and agricultural monitoring, among others.
Mariano Lowenstern, Michael W. Kudenov
openaire +1 more source
Modeling Pushbroom Scanning Systems
2012 UKSim 14th International Conference on Computer Modelling and Simulation, 2012The present study aims at modeling push broom imaging systems on board a spacecraft with a full force rigorous orbital photogrammetric mode as a digital solution. During the modeling stage, we adopt a hybrid time domain model wherein keplerian orbital parameters are modeled in continuous time domain, while attitude parameters are, modeled as ...
openaire +1 more source
Advances in hyperspectral LWIR pushbroom imagers
SPIE Proceedings, 2011Two long-wave infrared (LWIR) hyperspectral imagers have been under extensive development. The first one utilizes a microbolometer focal plane array (FPA) and the second one is based on an Mercury Cadmium Telluride (MCT) FPA. Both imagers employ a pushbroom imaging spectrograph with a transmission grating and on-axis optics. The main target has been
Hannu Holma +3 more
openaire +1 more source
Runway Detection using Pushbroom Hyperspectral Camera
2019 16th International Bhurban Conference on Applied Sciences and Technology (IBCAST), 2019Hyperspectral image analysis techniques use reflective solar radiation acquired by hyperspectral cameras to identify target present in the scene. A target can be any material surface of interest within an acquired image. The image acquisition mode of mostly available commercial hyperspectral camera is pushbroom.
Muhammad Awais Akhter +2 more
openaire +1 more source
GPU Geocorrection for Airborne Pushbroom Imagers
IEEE Transactions on Geoscience and Remote Sensing, 2012We present a method for real-time geocorrection of images from airborne pushbroom sensors using the hardware acceleration and parallel computing characteristics of modern graphics processing units. This allows very fast geocorrection without accuracy loss with respect to traditional direct methods, with very little computational load for the central ...
Javier Reguera-Salgado +2 more
openaire +1 more source
Time lens induced by optical pushbroom effect
Conference on Lasers and Electro-Optics, 2021We show analytically and by numerical simulation an on-chip time lens based on the optical pushbroom effect. Furthermore, we demonstrate this effect inside a silicon Bragg grating waveguide. A fast free carriers front generated inside the waveguide collects and traps the energy of a signal wave with smaller group velocity tuned near to the band gap of ...
Gaafar, Mahmoud Abdelaziz +3 more
openaire +1 more source