Patent ID: 9613300
Date: 2017-04-04
CPC Classifications: G06K,G06N

Claim:
1. A method for material classification of an object fabricated from an unknown material, comprising: selecting multiple pixels from a first image of the object captured at a first viewing direction; applying a first trained classification engine to the selected pixels so as to obtain an initial estimate of material at each selected pixel, wherein the first trained classification engine is trained at a first training direction, and wherein the first trained classification engine is characterized by performance characteristics that vary based at least in part on directional deviation from the first training direction; calculating a posterior probability for the collection of selected multiple pixels, wherein the posterior probability is calculated based at least in part on the performance characteristics and a directional deviation of a surface normal of the object at a selected pixel from the first training direction; and classifying material of the object based on the calculated posterior probability.