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相关概念视频

Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...

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相关实验视频

Updated: Jun 10, 2026

Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
09:01

Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind

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计算机视觉和边缘启用实时辅助框架,用于LPWAN紧急信号的视障人士.

Ghadah Naif Alwakid1,2, Mamoona Humayun3, Zulfiqar Ahmad4

  • 1Department of Computer Science, College of Computer and Information Sciences, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia.

Sensors (Basel, Switzerland)
|November 27, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种先进的视力障碍者辅助框架,通过实时物体检测和双通讯通道增强移动性,以实现可靠的导航和紧急警报.

关键词:
在LPWAN中使用.辅助技术是指辅助技术的使用.计算机视觉 计算机视觉深度学习是一种深度学习.边缘计算是一种边缘计算.医疗保健 医疗保健 医疗保健 医疗保健障碍物检测 障碍物检测 障碍物检测 障碍物检测实时监控实时监控无线通信是一种无线通信.

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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
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Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
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相关实验视频

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科学领域:

  • 辅助技术 辅助技术 辅助技术
  • 计算机视觉 计算机视觉
  • 边缘计算 边缘计算

背景情况:

  • 现有的视力障碍者辅助技术往往缺乏实时,在动态环境中的通用功能.
  • 当前的系统在各种室内/室外环境中面临范围,延迟或可靠性方面的权衡.
  • 需要综合解决方案,结合物体检测,通信和紧急信号.

研究的目的:

  • 为视力障碍者提出一个全面的辅助框架.
  • 整合计算机视觉,边缘计算和双通道通信架构.
  • 通过实时协助,增强独立的流动性和生活质量.

主要方法:

  • 使用YOLOv5深度学习模型进行高性能物体检测 (精度为0.988,回调为0.969,mAP为0.985).
  • 实现边缘计算以实现快速,本地处理和决策,卸载中央服务器.
  • 设计了一个双通道通信系统:Wi-Fi主链接和LoRaWAN (低功率广域网) 用于紧急警报.
  • 整合了一个基于物联网的恐慌按,用于位置标记的紧急传输.

主要成果:

  • 在各种现实条件下证明了低延迟和可靠的系统运行.
  • 在检测障碍物,路径和辅助工具方面取得了高精度.
  • 该系统在动态的室内和室外环境中被证明是有效的.
  • 验证了拟议架构的成本效益和可扩展性.

结论:

  • 开发的框架显著提高了对视力受损者实时援助.
  • 整合YOLOv5,边缘计算和双通讯提供了一个强大的解决方案.
  • 该系统具有很大的潜力,可以提高视力受损用户的独立移动性和安全性.
  • 该架构适合在需要立即支持的复杂环境中部署.