一种新型四叉树扫描智能图像传感器

Proceedings of Second IEEE Asia Pacific Conference on ASICs. AP-ASIC 2000 (Cat. No.00EX434) Pub Date : 2000-08-28 DOI:10.1109/APASIC.2000.896927

T. Nezuka, J. Akita, M. Ikeda, K. Asada

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引用次数: 4

摘要

四叉树扫描是通过扫描应用于图像的二维树形结构的节点来实现的。四叉树扫描只扫描激活的或有效的像素。我们采用0.6 /spl mu/m CMOS 3-metal 2-poly-Si工艺设计图像传感器。一个32/spl倍/32像素阵列和一个四叉树扫描控制器集成在4.5 mm/spl倍/4.5 mm芯片上。每个像素在96 /spl亩/米/倍/96 /spl亩/米的面积内具有A/D转换电路和运动检测电路。四叉树扫描控制器工作速度为10mcycles /s，功耗为10mw。

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A smart image sensor with novel implementation of quad-tree scan

The quad-tree scan is realized by scanning nodes of a two-dimensional tree structure applied to the image. Only activated or effective pixels are scanned with quad-tree scan. We designed the image sensor using 0.6 /spl mu/m CMOS 3-metal 2-poly-Si process. A 32/spl times/32 pixel array and a quad-tree scan controller are integrated on a 4.5 mm/spl times/4.5 mm die. Each pixel has an A/D conversion circuit and a motion detection circuit in a 96 /spl mu/m/spl times/96 /spl mu/m area. The quad-tree scan controller works at 10 Mcycles/s with 10 mW power dissipation.

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Proceedings of Second IEEE Asia Pacific Conference on ASICs. AP-ASIC 2000 (Cat. No.00EX434)

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