A 4-tap 3.5µm 1.2Mpixel Indirect Time-of-Flight CMOS Image Sensor with Peak Current Mitigation and Multi-User Interference Cancellation

📋 论文概要

本文提出了一种4抽头3.5μm像素间距的1.2百万像素间接飞行时间(ToF)CMOS图像传感器，通过峰值电流抑制技术降低功耗和噪声，并解决多用户干扰问题，适用于移动设备中的3D深度传感。

💡 主要创新点

• 采用4抽头像素架构实现高分辨率间接ToF深度测量
• 引入峰值电流抑制技术以减少瞬时大电流带来的功耗和噪声问题
• 设计多用户干扰抑制方案，提升多设备共存场景下的深度感知可靠性

🏷 关键词

📄 原文摘要

Bumsik Chung, Sooho Son, Hoyong Lee, Heeyoung Jo, Seung-Chul Shin, Sunjoo Hong, Jaeil An, Yonghun Kwon, Sungyoung Seo, Sunghyuck Cho, Youngchan Kim, Young-Gu Jin, Youngsun Oh, Yitae Kim, JungChak Ahn, Kyoungmin Koh, Yongin Park Samsung Electronics, Hwaseong, Korea The evolution of 3D depth-sensing technology enables various applications in mobile devices, from conventional photography enhancement (e.g., autofocus and bokeh effect) to new applications such as augmented reality and 3D scanning. Usually, 3D depth sensors operate with RGB color sensors for image fusion; the spatial resolution of depth sensors should be compatible to that of RGB sensors for better image fusion quality, which requires mega-pixel depth sensors. Among different depth-sensing techniques, only indirect time-of-flight (ToF) sensors can generate higher resolution depth maps with smaller system cost and power [1,2]. Recent indirect ToF sensors have achieved

👥 作者与机构

Min-Sun Keel, Daeyun Kim, Yeomyung Kim, Myunghan Bae, Myoungoh Ki,