METHOD FOR RECOGNISING SHAPES AND SYSTEM IMPLEMENTING SAID METHOD

摘要

The invention relates to a method for recognising shapes that comprises at least one pre-processing mechanism decomposing a source signal into elementary components called atoms, and a recognition mechanism based on the results of the decomposition made by the pre-processing mechanism, said method being characterised in that the pre-processing mechanism includes at least one learning phase leading to a set of signals called nuclei, said nuclei being suitable (26) for minimising a cost function representing the capacity of the nuclei to correctly reconstruct the signals of the database while ensuring a reduced decomposition of the source signal by using a database of signals representative of the source to be processed (24) and an encoding phase for decomposing the source signal into atoms, said atoms being generated by offsetting the signals according to the indices thereof, each of said atoms being associated with a decomposition coefficient. The invention also relates to a shape-recognition system for implementing said method.