Evaluation of centroiding algorithm error for Nano-JASMINE

2014 ◽  
Author(s):  
Takuji Hara ◽  
Naoteru Gouda ◽  
Taihei Yano ◽  
Yoshiyuki Yamada
Keyword(s):  
Centroiding Algorithm

Spot centroiding algorithm for discrete noise image and its hardware implementation

2011 ◽  
Vol 19 (12) ◽  
pp. 2992-2998 ◽  
Author(s):  
樊巧云 FAN Qiao-yun ◽  
张广军 ZHANG Guang-jun
Keyword(s):  
Hardware Implementation ◽  
Noise Image ◽  
Centroiding Algorithm

Hough transform used on the spot-centroiding algorithm for the Shack–Hartmann wavefront sensor

2016 ◽  
Vol 55 (1) ◽  
pp. 013105 ◽  
Author(s):  
Chou-Min Chia ◽  
Kuang-Yuh Huang ◽  
Elmer Chang
Keyword(s):  
Hough Transform ◽  
Wavefront Sensor ◽  
Centroiding Algorithm

scholarly journals An Accurate Centroiding Algorithm for PSF Reconstruction

2018 ◽  
Vol 156 (1) ◽  
pp. 14 ◽  
Author(s):  
Tianhuan Lu ◽  
Wentao Luo ◽  
Jun Zhang ◽  
Jiajun Zhang ◽  
Hekun Li ◽  
...  
Keyword(s):  
Centroiding Algorithm

An Accurate and Efficient Gaussian Fit Centroiding Algorithm for Star Trackers

2014 ◽  
Vol 61 (1) ◽  
pp. 60-84 ◽  
Author(s):  
Tjorven Delabie ◽  
Joris De Schutter ◽  
Bart Vandenbussche
Keyword(s):  
Gaussian Fit ◽  
Centroiding Algorithm

A Recovery Algorithm of Star Energy Distribution for Star Sensor under High Dynamic Condition

2013 ◽  
Vol 815 ◽  
pp. 187-192
Author(s):  
Cun Lian Wang ◽  
Bao Hua Li ◽  
Chang Hong Wang ◽  
Yun Chen
Keyword(s):  
Energy Distribution ◽  
Gaussian Distribution ◽  
Dynamic Condition ◽  
Star Sensor ◽  
Image Distribution ◽  
Recovery Algorithm ◽  
Star Image ◽  
High Dynamic ◽  
Centroiding Algorithm ◽  
The Ideal

Under the condition of high dynamic, there is a pixel shift phenomenon which is called smear in the star image sampled by star sensor. The recovery algorithm of star energy distributing for star sensor is presented in the paper. The quaternion of next frame is calculated with the previous continuous quaternion. All the ideal star coordinates of star image in the FOV is calculated with the quaternion of next frame. Then the angle between the two previous continuous axis directions is calculated with the previous continuous axis directions calculated with the previous continuous quaternion. The radius of threshold scan window of star image is calculated according to the angle. Finally, within the star image radius of the threshold scan window, shift the original star image to make the shifted star energy distribution continuous. So the star image distribution subjects to 2-D Gaussian distribution, and the star coordinates is obtain with centroiding algorithm. A star sensor featuring a recovery algorithm of star energy distributing for star sensors proposed in this paper was for demonstration at night sky experiment.

Noise-Insensitive Centroiding Algorithm for a Shack-Hartmann Sensor

2008 ◽  
Vol 52 (1) ◽  
pp. 160-169 ◽  
Author(s):  
Kyung-Wan Roh ◽  
Tae-Kyoung Uhm ◽  
Ji-Yeon Kim ◽  
Sung-Kie Youn ◽  
Jun Ho Lee
Keyword(s):  
Centroiding Algorithm
Sign in / Sign up

Export Citation Format

Share Document