【作者】 王灿； 胡羿云； 卢婧； 史国华； 饶学军； 张雨东；

【Author】 Wang Can1, 2 Hu yiyun1 Lu Jing1, 2 Si Guohua1 Rao xuejun1 Zhang Yudong1 (1 Institution of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209; 2 Graduate School of Chinese Academy of Sciences, Beijing 100039)

【机构】 中科院光电技术研究所自适应光学国家重点实验室； 中国科学院研究生院；

【摘要】 提出并实现了一种共焦扫描检眼镜实时图像采集的设计方案。根据检眼镜中的位置反馈信号及光电倍增管输出信号的特性,利用比较器和CPLD以及PCI-1410图像采集卡实现了实时图像采集的硬件设计;分析了采集过程中存在的图像畸变,并在LABVIEW中实现了畸变的校正以及图像的实时显示。该系统可实现图像大小512X512像素帧频为25帧的实时图像采集。更多还原

【Abstract】 A method of real-time image acquisition for confocal scanning laser ophthalmoscope (SLO) is proposed in this paper. According to the characteristic of scanning position feedback signal and PMT output signal in SLO, CPLD、operational amplifiers and PCI-1410 Image acquisition card are used to achieve the hardware design of real-time image acquisition for SLO. The image distortion in the process of acquisition is analyzed. The correction of the distortion is achieved by software which is developed by LABVIEW. The interface of real-time image acquisition and display is also designed in LABVIEW. This system can acquire images that are composed of 512×512 pixels, and display those at the speed of 25 frames per second.更多还原