A smart image sensor with high-speed feeble ID-beacon detection for augmented reality system

被引：19

作者：

Oike, Y ^{[1
]}

Ikeda, M ^{[1
]}

Asada, K ^{[1
]}

机构：

[1] Univ Tokyo, Dept Elect Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

ESSCIRC 2003: PROCEEDINGS OF THE 29TH EUROPEAN SOLID-STATE CIRCUITS CONFERENCE | 2003年

关键词：

D O I：

10.1109/ESSCIRC.2003.1257088

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we present a smart image sensor with high-speed feeble ID-beacon detection for an augmented reality (AR) system. AR systems are designed to provide an enhanced view of the real world with meaningful information from a computer. Our target AR system uses an optical device with ID beacon such as a blinking LED. Our sensor architecture realizes analog readout for 2-D image capture and high-speed digital readout for ID beacon detection simultaneously. The pixel circuit has a logarithmic-response photo detector and an adaptive modulation amplifier to detect a feeble ID beacon in wide range of background illumination. A 128 x 128 smart sensor has been developed and successfully tested. It achieves 4850 bit/ID-sec using 40 kHz carrier and < -10.0 dB signal-to-background ratio (SBR) in > 40 dB background illumination for robust ID-beacon detection.

引用

页码：125 / 128

页数：4