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

scholarly journals Raw data based image processing algorithm for fast detection of surface breaking cracks

2017 ◽  
Author(s):  
Sruthi Krishna K. P. ◽  
Nithin Puthiyaveetil ◽  
Renil Kidangan ◽  
Sreedhar Unnikrishnakurup ◽  
Mathias Zeigler ◽  
...  
Keyword(s):  
Image Processing ◽  
Processing Algorithm ◽  
Image Processing Algorithm ◽  
Raw Data ◽  
Fast Detection

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.

Instrument Radiometric Processing for Earh Observation Satellite Optical Payload

2019 ◽  
Vol 29 (3SI) ◽  
pp. 423
Author(s):  
Ngo Duy Tan ◽  
Bui Trong Tuyen ◽  
Pham Minh Tuan ◽  
Chu Xuan Huy ◽  
Dao Hong Khiem ◽  
...  
Keyword(s):  
Image Processing ◽  
Output Signal ◽  
Calibration Procedure ◽  
Radiometric Calibration ◽  
Raw Data ◽  
Dark Noise ◽  
Calibration Parameter

The radiometric calibration procedure, applied on VNREDSat-1 raw data shall correct and minimize the radiometric non-uniform gain and offset, occurred by the nature of the optical payload. The procedure is based on the radiometric model, built to transform the incoming radiance into camera output signal. Within this radiometric model, the radiometric parameters such as dark noise and pixel response non-uniformity shall be separated. The output signal of dark noise shall be measured by capturing image scene of the ocean at night. The output signal of pixel response non-uniformity shall be measured by capturing image scene of uniform radiance image scene such as the dessert or grass field. All the radiometric calibration parameter after calculated shall be saved into a calibration file, which is kept on the control station and image processing station.

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