Adaptive correlation image processing by collinear optical heterodyning

1996 ◽  
Author(s):  
Eugeny R. Tsvetov
Keyword(s):  
Image Processing ◽  
Correlation Image

Correlation Image Processing of Diagnostic Raw Data Collected with NAOS-CONICA

2005 ◽  
pp. 83-85
Author(s):  
Hans Weghorn ◽  
Rainer Lenzen ◽  
Wolfgang Brandner ◽  
Markus Hartung
Keyword(s):  
Image Processing ◽  
Raw Data ◽  
Correlation Image

Tracking of Moving Object by Phase-only Correlation

2000 ◽  
Vol 12 (5) ◽  
pp. 541-544 ◽  
Author(s):  
Hiroshi Sasaki ◽  
◽  
Kazumasa Nomura ◽  
Hiroshi Nakajima ◽  
Koji Kobayashi ◽  
...  
Keyword(s):  
Image Processing ◽  
Tracking System ◽  
Moving Object ◽  
Rotation Invariant ◽  
Parallel Displacement ◽  
Image Processing Techniques ◽  
Correlation Image ◽  
Measured Distance ◽  
Real Time Tracking ◽  
Processing Techniques

A real-time tracking system that measures four-dimensional displacement of a moving object and that traces the object by directing a pair of cameras on three-axis robot is implemented and tested. In this system, the distance, rotation, and parallel displacement values of the object are measured by Phase-Only Correlation and Rotation-Invariant Phase-Only Correlation image processing techniques. It controls the pitch, roll, and yaw angles of the camera to locate the target in the stable position on the image, as well as keeps the size of the target on the image by magnifying or reducing the image, based on the measured distance using triangular surveying.

Some comments about observations and image processing of comet 29P/Schwassmann-Wachmann 1

1999 ◽  
Vol 173 ◽  
pp. 243-248
Author(s):  
D. Kubáček ◽  
A. Galád ◽  
A. Pravda
Keyword(s):  
Image Processing ◽  
Large Scale ◽  
Harvard College ◽  
Oak Ridge ◽  
Large Scale Structures ◽  
Short Period Comet ◽  
Short Period ◽  
Scale Structures ◽  
Harvard College Observatory ◽  
Period Comet

AbstractUnusual short-period comet 29P/Schwassmann-Wachmann 1 inspired many observers to explain its unpredictable outbursts. In this paper large scale structures and features from the inner part of the coma in time periods around outbursts are studied. CCD images were taken at Whipple Observatory, Mt. Hopkins, in 1989 and at Astronomical Observatory, Modra, from 1995 to 1998. Photographic plates of the comet were taken at Harvard College Observatory, Oak Ridge, from 1974 to 1982. The latter were digitized at first to apply the same techniques of image processing for optimizing the visibility of features in the coma during outbursts. Outbursts and coma structures show various shapes.

Analysis of the 9th November 1990 flare

2000 ◽  
Vol 179 ◽  
pp. 229-232
Author(s):  
Anita Joshi ◽  
Wahab Uddin
Keyword(s):  
Image Processing ◽  
Two Dimensional ◽  
Temporal Behaviour ◽  
Contour Maps ◽  
Dimensional Measurements ◽  
Processing Software ◽  
Image Processing Software

AbstractIn this paper we present complete two-dimensional measurements of the observed brightness of the 9th November 1990Hαflare, using a PDS microdensitometer scanner and image processing software MIDAS. The resulting isophotal contour maps, were used to describe morphological-cum-temporal behaviour of the flare and also the kernels of the flare. Correlation of theHαflare with SXR and MW radiations were also studied.

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