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Depth Perception and Spatial Vision

Depth Perception and Spatial Vision

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.

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相关实验视频

Updated: Sep 16, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

在PCSEL上的单立体集成元表面用于深度感知.

Wen-Cheng Hsu^1,2, Wen-Chien Miao^1,2, Yu-Heng Hong²

¹Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.

|July 11, 2025

概括

研究人员通过整合超表面全息图和光子晶体表面发射激光器 (PCSEL) 来开发出芯片规模的结构光投影仪. 这项创新大大降低了3D传感应用的设备尺寸和功耗.

关键词:

深度感应感应深度感应在现场制造制造.metasurfaces 是一个地表.一个单一的整合.在芯片上的点点投影仪.光子晶体表面发射激光发射激光.结构光的结构光是一种结构光.

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Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

Published on: September 25, 2020

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

相关实验视频

Last Updated: Sep 16, 2025

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

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Published on: June 7, 2019

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Published on: September 25, 2020

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

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科学领域:

光电学是指光电子产品.
纳米光子学纳米光子学
消费电子产品消费者电子产品

背景情况:

点点投影仪对于智能手机和扩展现实 (XR) 设备等消费电子产品的深度感知至关重要.
目前的点投影机设计因大尺寸和高功耗而受到影响,这限制了它们与紧型设备的集成.
现有技术正在努力平衡小型化与有效的3D传感能力.

研究的目的:

为芯片规模结构光投影仪展示了第一个超表面全息图和光子晶体表面发射激光器 (PCSEL) 的单体集成.
为了实现显著减少设备足迹和功耗,同时保持3D传感性能.
探索用于下一代应用的紧型收发器系统的变革性进步.

主要方法:

在晶圆层设计上,高层表面全息图与光子晶体表面发射激光器 (PCSEL) 的单体集成.
开发一个紧的芯片尺寸结构光投影仪.
对设备足迹,功耗和3D传感能力的评估.

主要成果:

实现了前所未有的0.025mm3.3的紧足迹.
与商业DOE-VCSEL点投影机相比,设备体积减少了大约2450倍.
降低了28.7%的功耗,同时保持了实用的3D传感能力.

结论:

超表面全息图和PCSEL的单体集成为紧结构光投影仪提供了一个变革性的解决方案.
这种晶圆层次的方法显著降低了设备尺寸和功耗,为3D传感提供了新的可能性.
这项技术对生物识别,扩展现实和先进消费电子产品的下一代应用具有前景.