Active Visual Depth Perception by Looming

Looming 的主动视觉深度感知

• 批准号: 9975048
• 负责人: Terrence Sejnowski
• 金额: $ 12.91万
• 依托单位: The Salk Institute for Biological Studies
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975048&HistoricalAwards=false
• 关键词: Active; Visual; Depth; Perception; Looming

This proposal is a project to measure and model looming responses of cellsin the optic ganglia (primarily the lobula) of the night-flying hawk moth,Manduca sexta. When the moth hovers in front of a flower to feed, windcauses the flower to move in the moth's visual field. The experimentsproposed are of two kinds: First, responses to a wide variety of visualstimuli will be recorded intracellularly as well as extracellularly fromlooming neurons in order to test if the trigger for the looming responsesare stimulus changes of luminance, changes of perimeter, or changes due tovisual flow fields. Second, computer models of these neuronal responseswill be constructed and tested with equivalent 'stimuli'. It is planned totest the models with real images by feeding into the models videos of e.g.foliage or flowers wiggling in the wind. One very practical future use ofsuch computer models may be in machine (robot) vision and in neuromorphicchips.

该建议是一个项目，旨在测量和模拟细胞对夜间鹰蛾的视神经神经节（主要是小叶）的迫在眉睫的反应。当飞蛾徘徊在花前喂食时，风场花将花在飞蛾的视野中移动。该实验提供了两种：首先，对各种视觉史密斯的反应将被细胞内记录以及细胞外神经元的细胞外记录，以测试是否触发了亮度的散发性刺激变化，外观变化或导致流动流量导致的变化。其次，这些神经元反应的计算机模型将通过等效的“刺激”构建和测试。它是通过将带入风中的模型视频或风在风中摇摆的模型视频来供计划的带有真实图像的模型。将来的一种非常实用的计算机模型可能是在机器（机器人）视觉和神经形态芯片中。