几乎全景的神经形态视觉与透明的光合作用
Xuemei Dong1, Chen Chen1, Keyuan Pan1
1Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), 30 South Puzhu Road, Nanjing, 211816, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 27, 2023
概括
研究人员开发了一个透明的平面光子突触 (TPPS) 用于全景神经形象视觉. 该设备模仿生物视觉,具有双侧灵敏度和学习能力,增强图像识别.
科学领域:
- 材料科学 材料科学 材料科学
- 神经科学是一个神经科学.
- 光电学是指光电子产品.
背景情况:
- 神经形态视觉系统旨在使用人工组件复制生物视觉处理.
- 传统的光合作用装置往往使用不透明的材料和垂直结构,限制他们的视野.
- 需要具有更广的视角和生物模拟功能的先进光合作用设备.
研究的目的:
- 为了引入一个透明的平面光子突触 (TPPS) 几乎全景的神经形象视觉.
- 为了证明TPPS的双面光敏感能力和超宽带检测.
- 研究生物突触行为和在图像识别和物体检测中的性能增强.
主要方法:
- 使用二维碳基衍生物制造透明平面光子突触.
- 该设备的光检测范围 (365-970 nm) 和视角 (≈360°) 的表征.
- 评估生物突触行为,包括记忆,学习,适应和对脉冲促进.
主要成果:
- 该TPPS具有超宽带光检测和全方位的视角.
- 该设备表现出内在的持久光导性,使短期/长期记忆和体验学习成为可能.
- 观察到171%的对脉冲促进指数,导致图像识别和移动物体检测提高了92%.
结论:
- 开发的TPPS为神经形象视觉系统提供了显著的进步,使全景感知成为可能.
- 该设备的生物突触特性和性能突显了其对复杂的人工视觉处理的潜力.
- 这项技术为下一代高度感知的神经形态视觉应用铺平了道路.
相关概念视频
01:22Photoreceptors and Visual Pathways
6.1K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.1K
01:24Vision
53.6K
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.
53.6K
01:26Visual System
616
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...
Once through the pupil, the light passes through the lens, a...
616
01:20Parallel Processing
179
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...
179
01:20Anatomy of the Eyeball
7.2K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
7.2K
01:15Depth Perception and Spatial Vision
714
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
714