Other methods of shape analysis

Gotoh and Finney [85] proposed a mathematical method for expressing a single, three-dimensional body by sectioning as an equivalent ellipsoid with the same volume, surface area and average projected area as the original body. 

Micro-cuboids in three-dimensional turbulent flow have been examined using Fraunhofer diffraction [86]. Both dynamic and static three dimensional particle shape features could be obtained and served as a basis for particle shape analysis by pattern recognition. 

The use of wedge-shaped photodetectors to measure forward light scattering intensity has also been explored for determination of crystal shape [87]. 

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