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Asynchronous Event-Based Motion Processing: From Visual Events to Probabilistic Sensory Representation

机译:基于异步事件的运动处理:从视觉事件到概率感官表示

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摘要

In this work, we propose a two-layered descriptive model for motion processing from retina to the cortex, with an event-based input from the asynchronous time-based image sensor (ATIS) camera. Spatial and spatiotemporal filtering of visual scenes by motion energy detectors has been implemented in two steps in a simple layer of a lateral geniculate nucleus model and a set of three-dimensional Gabor kernels, eventually forming a probabilistic population response. The high temporal resolution of independent and asynchronous local sensory pixels from the ATIS provides a realistic stimulation to study biological motion processing, as well as developing bio-inspired motion processors for computer vision applications. Our study combines two significant theories in neuroscience: event-based stimulation and probabilistic sensory representation. We have modeled how this might be done at the vision level, as well as suggesting this framework as a generic computational principle among different sensory modalities.
机译:在这项工作中,我们提出了一个两层的描述模型,用于从视网膜到皮质的运动处理,并使用了基于事件的异步基于时间的图像传感器(ATIS)相机的基于事件的输入。运动能量检测器对视觉场景的时空滤波已在横向膝状核模型的简单层和一组三维Gabor核的简单层中分两步实施,最终形成了概率种群响应。来自ATIS的独立和异步局部感觉像素的高时间分辨率为研究生物运动处理以及开发用于计算机视觉应用的受生物启发的运动处理器提供了现实的刺激。我们的研究结合了神经科学的两个重要理论:基于事件的刺激和概率感觉表征。我们已经对如何在视觉水平上做到这一点进行了建模,并提出了该框架作为不同感觉方式之间的通用计算原理。

著录项

  • 来源
    《Neural computation》 |2019年第6期|1114-1138|共25页
  • 作者单位

    Univ Pierre & Marie Curie Paris 6 UPMC, Vis & Nat Computat Team, Sorbonne Univ,CNRS UMRS 7210, Vis Inst,UMR S968 Inserm,UPMC,CHNO Quinze Vingts,, F-75012 Paris, France;

    Univ Pierre & Marie Curie Paris 6 UPMC, Vis & Nat Computat Team, Sorbonne Univ,CNRS UMRS 7210, Vis Inst,UMR S968 Inserm,UPMC,CHNO Quinze Vingts,, F-75012 Paris, France;

    Univ Pierre & Marie Curie Paris 6 UPMC, Vis & Nat Computat Team, Sorbonne Univ,CNRS UMRS 7210, Vis Inst,UMR S968 Inserm,UPMC,CHNO Quinze Vingts,, F-75012 Paris, France|Univ Pittsburgh, Med Ctr, Pittsburgh, PA 15213 USA|Carnegie Mellon Univ, Inst Robot, Pittsburgh, PA 15213 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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