This is a Maven project implementing an ImageJ plugin providing trackig of a spot moving in a field with 4 reference marks. It was created for automatization of tracking of laser spot reflected from the mirror attached to the end of a needle-like crystal bending as a result of photomechanical effect (photobending). Photobending is a phenomenon of crystal deformation caused by non-uniform crystal structure transformation due to photochemical reaction.
Required input is a stack of timelapse images of the spot moving relative to the template picture with 4 marks located in the corners of a square. The output is the time dependence of spot dislacement given in units of the square side length. Usage of the template with 4 marks allows to compensate for the effects of picture instability and view perspective.
See details at http://imagej.net/PhotoBend
The resulting plugin "Laser Spot Track" can be installed through normal update procedure in Fiji by adding the update site https://sites.imagej.net/PhotoBend/
The project uses ideas and code of
- Template Matching by Qingzong Tseng (based on opencv)
- javacv (java interface to OpenCV) by Samuel Audet
- Exif Metadata Library by Drew Noakes