Sunday, September 11, 2022

High speed X-ray video: jumping beans, wind-up toys and more!

 High-speed X-ray video captured with a Dectris photon-counting detector. I show how the process works and how this detector is different than normal camera detectors.

Mexican jumping beans:

X-ray timelapse video:

ImageJ image format converter:  (the NIH's SSL cert expired?)

Flipping through images fast enough as if playing video:

Video editing software:

The sequence of tiff files directly from the sensor contain a lot of temporal flicker -- probably because the X-ray tube itself has time-varying output.  This isn't so bad at 60Hz, but quite a problem at 300Hz.  I used Resolve's "color stabilizer" to maintain constant levels throughout a clip, and was impressed how well this removed the flicker.

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