The visual index

We compute this global representation for each object and then to allow a fast visual scan of all objects, we use two methods: The first method consists in the ordering of the objects (represented by these global representations ) based on the pattern of pixels and on the color. The list of ordered objects is written on disc together with a file containing black and white icons, one for each object. These icons form a visual index that can be quickly scanned (around 1000 icons per second) to know what we have in the objects data base. Clicking on the icon will get the full object displayed, with its different representations.

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