Research and Development for Analog-Digital Merged Image Processing

模数融合图像处理的研究与开发

• 批准号: 09555110
• 负责人: IWATA Atsushi
• 金额: $ 7.3万
• 依托单位: HIROSHIMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555110/
• 关键词: image processing LSI; PWM signals; signal processing circuit; pattern recognition; image sensor; 機能イメージセンサー; 信号検出処理回路; WAC; WDC; 機能イメージセンサ

In order to realize pattern recognition systems which extract features from two dimensional image data, the bio-inspired system architecture and low power circuit technique are proposed. A new image processing LSI chip is developed based on the proposed techniques. Merged analog-digital circuit architecture using pulse width modulation signals realizes parallel processing with low power and small chip area. Two dimensional image sensor array which senses image data, converts them to PWM signals and calculates' global features. A test chip was designed and fabricated with a O.8um double-poly, double-metal CMOS technology. The image sensor array with 64 x 64 pixels, an addressing circuit and a signal processing circuit for focal plane signal processing, are integrated on a l5 x l5mm chip. Experimental results shows the test chip realizes the feature detections and operates at 3.3V supply with low power dissipation. This techniques are expected effectivelly applied to recognition systems for characters, objects and faces, highly flexible vision systems for robots, and sensing system for various kinds of security systems.

为了实现从二维图像数据中提取特征的模式识别系统，提出了仿生系统结构和低功耗电路技术。在此基础上研制了一种新的图像处理大规模集成电路。采用脉宽调制信号的模数混合电路结构，实现了低功耗、小面积的并行处理。二维图像传感器阵列感测图像数据，将其转换为PWM信号并计算全局特征。采用0.8 μ m双多晶硅双金属CMOS工艺设计并制作了测试芯片。64 × 64像素的图像传感器阵列、寻址电路和用于焦平面信号处理的信号处理电路集成在15 × 15mm的芯片上。实验结果表明，该测试芯片实现了特征检测功能，工作在3.3V电源电压下，具有较低的功耗。该技术有望有效地应用于字符、物体和人脸的识别系统，高度灵活的机器人视觉系统，以及各种安全系统的传感系统。

项目成果

M.Honma: "A Design of Functional CMOS Imager Using PWM Signals" Technical Report of IEICE. ICD98-126. 1-8 (1998)

M.Honma：“使用 PWM 信号的功能 CMOS 成像器的设计”IEICE 的技术报告。

Makoto Ngata: "A PWM Signal Processing Core Circuit,Based on a Switched Current Integration Technique" IEEE Journal of Solid-State Circuits. Vol.33,No.1. 53-59 (1998)

Makoto Ngata：“基于开关电流集成技术的 PWM 信号处理核心电路”IEEE 固态电路杂志。

岩田 穆: "PWM方式機能イメージセンサの構成" 電子情報通信学会信学技報. ICD-97-114. 63-70 (1997)

Mu Iwata：“PWM 功能图像传感器的配置”IEICE 技术报告。 ICD-97-114 (1997)。

本間 充: "PWM信号を用いたCMOS機能イメージャの設計" 電子情報通信学会信学技報. ICD98-126. 1-8 (1998)

Mitsuru Homma：“使用 PWM 信号的 CMOS 功能成像器的设计”ICD98-126 (1998)。

H.Nakamoto: "Analog-Digital merged pattern Matching Circuits using PWM Signals" Technical Report of IEICE. ICD98-128. 17-24 (1998)

H.Nakamoto：“使用 PWM 信号的模拟数字合并模式匹配电路”IEICE 的技术报告。