Login  Register

photometry on video using AstroImageJ

Posted by Alnair on Apr 13, 2021; 6:06pm
URL: http://astroimagej.170.s1.nabble.com/photometry-on-video-using-AstroImageJ-tp1548.html

Hi,

From some types of astronomical events (i.e. star occultations by minor planets) fast photometry was required in order to get useful results, so many astronomers registered the phenomenon with high sensitivity video cameras with precise time leveling taken from a GPS device.

Here is a sample still image of a such videos:
image.png
AstroImageJ seems to understand the video format (AVI uncompressed) it shows all the frames (just letf-right mirrored).

However, multi aperture photometry doesn't work. After setting up the apertures it doesn't start processing the images.

This is how AstroImageJ looks after pressing <Enter> to start processing:
image.png

It would be nice if it works, since AstroImageJ is better on photometry (in my opinion) than other alternatives other astronomers use.

Here is a sample uncompressed video (warning, 346 Mb)
https://drive.google.com/file/d/1bs6iSXdKM8jnr9o2FLWteFs9BZDhPydh/view?usp=sharing

Maybe it's easy to solve. It seems it nearly works.

Thanks,
  Ferran Casarramona