A 128×96 Pixel Event-Driven Phase-Domain ΔΣBased Fully Digital 3D Camera in 0.13µm CMOS Imaging Technology

📋 论文概要

该论文提出了一种128×96像素的事件驱动相位域ΔΣ全数字3D相机，采用0.13µm CMOS成像技术实现。通过事件驱动和相位域ΔΣ调制，解决了传统3D相机需要复杂模拟电路和高速数据处理的问题，实现了低成本的3D图像捕获。

💡 主要创新点

• 提出事件驱动（event-driven）的像素级相位域ΔΣ调制架构，将3D测距转换为数字域处理，无需高精度模拟电路。
• 实现全数字的3D相机系统，包括像素阵列、数字信号处理和控制逻辑，利用0.13µm CMOS成像工艺集成，降低了成本和功耗。
• 采用128×96像素分辨率的事件驱动读出方式，只在有事件发生时进行数据转换，减少了数据量和处理带宽。

🏷 关键词

📄 原文摘要

University of Edinburgh, Edinburgh, United Kingdom, STMicroelectronics, Edinburgh, United Kingdom Low-cost 3D image capture devices are enabling new applications in the gaming, robotics, automotive and surveillance industries. A number of approaches are competing for a share of these markets. Stereoscopic cameras employ intensive image processing to interpret distance from the correlation of two separate image streams [1], structured light systems analyse the deformation of patterned light projected over the scene, while time-of-flight (TOF) cameras require custom frequency-modulated image sensors and optical sources to measure the phase or return time of reflected light pulses. As rapid progress is made on compact, high-frequency NIR LEDs, much research is being devoted to improvements in the size, sensitivity and resolution of TOF image sensors. Analog pixel approaches provide compact pixel implementations but accuracy is limited by

👥 作者与机构

Richard J. Walker1,2, Justin A. Richardson2, Robert K. Henderson1, 1