A Three Dimensional Imaging System Integrating Parallel Analog Signal Processing and IC Sensors

集成并行模拟信号处理和 IC 传感器的三维成像系统

• 批准号: 8915969
• 负责人: Larry Carley
• 金额: $ 117.16万
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915969&HistoricalAwards=false
• 关键词: Three; Dimensional; Imaging; System; Integrating

Carley The topic of this research is the design and use of a smart sensor system for light-stripe range finding. A plane of light is swept over a three-dimensional object that is imaged on a two- dimensional array of pixels. (The array of pixels and the plane of light are parallel planes.) At the time that a point on the object is illuminated, the corresponding pixel will receive its maximum light intensity. By recording the times at which pixels receive their maximum light intensities, the three-dimensional structure of the object can be determined. The sensor uses photodiodes integrated on a chip with analog circuitry at each pixel that can determine the time of maximum illumination. This circuitry is augmented with inter-pixel signal processing circuitry to increase the accuracy of the sensor, and with A/D converters and multiplexors to allow communication with a computer. A 28 x 32 sensor array has been fabricated and demonstrated.

Carley 这项研究的主题是设计和使用用于光条纹测距的智能传感器系统。 光平面扫过三维物体，该三维物体在二维像素阵列上成像。 （像素阵列和光平面是平行平面。）当物体上的某一点被照亮时，对应的像素将接收到其最大的光强度。 通过记录像素接收最大光强度的时间，可以确定物体的三维结构。 该传感器使用集成在芯片上的光电二极管，每个像素处都带有模拟电路，可以确定最大照明的时间。 该电路通过像素间信号处理电路进行了增强，以提高传感器的精度，并通过 A/D 转换器和多路复用器进行增强，以允许与计算机进行通信。 28 x 32 传感器阵列已制造并演示。