Systems and methods for invariant pulse latency coding
US8315305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2010 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Jul 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Image processing systems and methods extract information from an input signal representative of an element of an image and to encode the information in a pulsed output signal. A plurality of channels communicates the pulsed output signal, each of the plurality of channels being characterized by a latency. The information may be encoded as a pattern of relative pulse latencies observable in pulses communicated through the plurality of channels and the pattern of relative pulse latencies is substantially insensitive to image contrast and/or image luminance. A filter can be employed to provide a generator signal based on the input signal and pulse latencies can be determined using a logarithmic function of the generator signal. The filter may be temporally and/or spatially balanced and characterized by an integral along spatial and/or temporal dimensions of the filter that is substantially zero for all values of a temporal and/or a spatial variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.