My idea was a more low tech and, I think, a cheaper one than comp software. Digital cameras have made taking pictures basically a free thing as opposed to paying for film to be developed etc. I figured there are many people of many different heritages, races, and sizes and shapes and ages in the world and many of them are represented by those online and most of us here on websleuths eitheer fit the bill or have friends who might fit any needed description. When L.E. needs a certain age, race, size height etc and dressed in certain clothing we just need to take a pic of a volunteer wearing the specific clothing. (Easier just to have the volunteer wear the right clothes type when pic is taken.)
Facial image reconstruction is good when you have a DOE that was found naked and you need to have some small hope of finding out who it was but when you have specific clothing information to go with body size,weight and height full body image with clothing might become important in helping ID the DOE.
An example : I was in a large store one day and happened to overhear 2 workers talking. One had recently had a day off and had come in to shop for stuff but was dressed differently than was his usual work attire. His coworker said, "Wow, you look different. You just aren't you without your work clothes on."
That started me thinking and I realized that often you can recognize people you know by what they wear along with their body size and shape even when you are too far away to see the face features.