Title :
A video Time Encoding Machine
Author :
Lazar, Aurel A. ; Pnevmatikakis, Eftychios A.
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY
Abstract :
Time encoding is a real-time asynchronous mechanism of mapping analog amplitude information into multidimensional time sequences. We investigate the exact representation of analog video streams with a Time Encoding Machine realized with a population of spiking neurons. We also provide an algorithm that perfectly recovers streaming video from the spike trains of the neural population. Finally, we analyze the quality of recovery of a space-time separable video stream encoded with a population of integrate-and-fire neurons and demonstrate that the quality of recovery increases as a function of the population size.
Keywords :
image representation; image sequences; video coding; video streaming; analog amplitude information mapping; analog video streaming; integrate-and-fire neurons; multidimensional time sequences; real time asynchronous mechanism; space-time separable coding; spiking neurons; video representation; video time encoding machine; Asynchronous circuits; Delta modulation; Electronic mail; Encoding; Multidimensional systems; Neurons; Neuroscience; Sampling methods; Streaming media; Video coding; Gabor wavelets; frames; integrateand-fire neurons; time encoding; video coding;
Conference_Titel :
Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-1765-0
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2008.4711855