Results 131 to 140 of about 636 (172)
Some of the next articles are maybe not open access.
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1994
Modeling and analyzing pushbroom sensors commonly used in satellite imagery is difficult and computationally intensive due to the motion of an orbiting satellite with respect to the rotating Earth, and the nonlinearity of the mathematical model involving orbital dynamics.
Richard I. Hartley, Rajiv Gupta 0002
openaire +1 more source
Modeling and analyzing pushbroom sensors commonly used in satellite imagery is difficult and computationally intensive due to the motion of an orbiting satellite with respect to the rotating Earth, and the nonlinearity of the mathematical model involving orbital dynamics.
Richard I. Hartley, Rajiv Gupta 0002
openaire +1 more source
On stereo-rectification of pushbroom images
2014 IEEE International Conference on Image Processing (ICIP), 2014Image stereo pairs obtained from pinhole cameras can be stereo-rectified, thus permitting to test and use the many standard stereo matching algorithms of the literature. Yet, it is well-known that pushbroom Earth observation satellites produce image pairs that are not stereo-rectifiable.
Carlo de Franchis +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
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
On Ground Calibration Of A Pushbroom Scanner
SPIE Proceedings, 1986To perform in the laboratory the final calibration of a pushbroom scanner a flexible test arrangement has been developed. Herewith radiometric and geometric calibration can be performed to a CCD based multispectral scanner. With the same arrangement spectral calibration and a simple check of instrumental sensitivity to polarisation and straylight are ...
C. Smorenburg, A. L. G. van Valkenburg
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
A Windowing/Pushbroom Hyperspectral Imager
2006We show that any pushbroom hyperspectral imager can be converted into a windowing one by only attaching in front of it a simple dispersive element. The resulting device displays the same spectral resolution than the former one. To test this idea we have built a pushbroom imaging spectrograph in our laboratory. A plane transmission grating has been used
B. Couce +3 more
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
Fully automated mosaicking of pushbroom aerial imagery
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008This communication addresses the problem of the automatic mosaicking of raw images acquired by airborne pushbroom imagers. Using appropriate ancillary data issued from GPS and inertial measurements, we show how the mutual information criterion can be used to improve the co-registration and direct georeferencing of overlapping flight lines by estimating
Claude Cariou, Kacem Chehdi
openaire +2 more sources
Lexisearch for Modeling Pushbroom Imaging Systems
Proceedings of the 2019 3rd International Symposium on Computer Science and Intelligent Control, 2019The present study aims at exploiting lexicographic search(lexi-search in short) technique for modeling push broom imaging systems on board a spacecraft. Conventional techniques use a full force rigorous orbital photogrammetric model adopting iterative least squares techniques with partial derivatives of adjustment equations involving Taylor's series ...
openaire +1 more source