Changes

This calibration device was used to determine the change in pixel location of the center of the lens flares based on angular displacement.  To do this, the camera was mounted horizontally on a 1.40m long bar.  The camera end was free to rotate about a pivot located at the opposite end of the rod, above which a mirror was mounted.  A linear micro-adjustment translation stage was placed below the camera end.   

This calibration device was used to determine the change in pixel location of the center of the lens flares based on angular displacement.  To do this, the camera was mounted horizontally on a 1.40m long bar.  The camera end was free to rotate about a pivot located at the opposite end of the rod, above which a mirror was mounted.  A linear micro-adjustment translation stage was placed below the camera end.   

=== Image Analysis ===   

=== Video Analysis ===   

To find the location of the center of the flair on each image, several lines of code were implemented:

Because of the large number of images, a batching process was developed to aid in the video analysis.  First, a built in Linux program, ffmpeg, separates the video into individual frames.  Next, a program was developed to determine the center of th flare spot for each image.  To find the location of the center of the flare, several lines of code were implemented:

[[Image:Screenshot.png|center|Matlab code used for image analysis]]

[[Image:Screenshot.png|center|Matlab code used for image analysis]]