Spiking neuron sensory processing apparatus and methods for saliency detection
US9218563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Jun 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N3/088
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for salient feature detection by a spiking neuron network. The network may comprise feature-specific units capable of responding to different objects (red and green color). The plasticity mechanism of the network may be configured based on difference between two similarity measures related to activity of different unit types obtained during network training. One similarity measure may be based on activity of units of the same type (red). Another similarity measure may be based on activity of units of one type (red) and another type (green). Similarity measures may comprise a cross-correlogram and/or mutual information determined over an activity window. During network operation, the activity based plasticity mechanism may be used to potentiate connections between units of the same type (red-red). The plasticity mechanism may be used to depress connections between units of different types (red-green). The plasticity mechanism may effectuate detection of salient features in the input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.