Single-chip eye tracker using smart CMOS Image Sensor pixels

被引：5
|
作者：
Kim, D [1 ]
Lim, S [1 ]
Han, G [1 ]
机构：
[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2005年 / 45卷 / 02期
关键词：
eye tracker; CMOS image sensor (CIS); smart CIS; shrink operation; winner-take-all (WTA);
D O I：
10.1007/s10470-005-4006-7
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
The eye tracker is a system that detects the point where the user gazes on. The conventional eye tracker using a Charge-Coupled Device (CCD) camera needs many peripherals and software computation causing high cost, computation time and power consumption. This paper proposes a single-chip eye tracker using smart CMOS Image Sensor (CIS) pixels. The proposed eye tracker does not require additional peripherals and operates at higher speed than the conventional approach. The prototype chip was designed and fabricated for a 32 x 32 smart CIS pixels array with a 0.35-mu m CMOS process. The test results show +/- 1 pixel error at the rate of 125 frame-per-second. The power consumption is 260 mW with 3.3 V supply voltage and the silicon area is 3.8 mm(2).
引用
收藏
页码：131 / 141
页数：11
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