| 激光扫描图象数据采集系统非线性失真的反馈补偿 |
| |
| 引用本文： | 向际鹰 吴震. 激光扫描图象数据采集系统非线性失真的反馈补偿[J]. 光子学报, 1996, 25(9): 819-822 |
| |
| 作者姓名： | 向际鹰 吴震 |
| |
| 作者单位： | 华中理工大学光电子系 |
| |
| 摘 要： | 为获取低几何畸变高重复性的激光扫描图象,我们提出了一种基于闭环象素时钟发生器的激光扫描器非线性误差补偿方案,使用以驱动数据采集系统AD转换的象素时钟频率正比于扫描器运行的角速度,从而用采样时间间隔的非均匀性换取了采样点空间位置的均匀性。
|
| 关 键 词： | 图象采集 DA转换器 激光扫描 振铃效应 |
GEOMETRIC DISTORTION OF LASER SCANNING IMAGING SYSTEM AND ITS CLOSED-LOOP COMPENSATION |
| |
| Xiang Jiying, Wu Zhen,Zhang Ping,Xiang Ronghai. GEOMETRIC DISTORTION OF LASER SCANNING IMAGING SYSTEM AND ITS CLOSED-LOOP COMPENSATION[J]. Acta Photonica Sinica, 1996, 25(9): 819-822 |
| |
| Authors: | Xiang Jiying Wu Zhen Zhang Ping Xiang Ronghai |
| |
| Affiliation: | Huazhong University of Science and Technology, Wuhan 430074 |
| |
| Abstract: | A compensation system based on closed loop pixel clock generator is developed for correctingthe non-linear distortion caused by laser scanner. Because the frequency of pixel clock which drives ADconverter of data acquisition systern is proportional to the angular velocity of the scanner,we getuniform sampling points at a sacrifice of the sampling moment uniformity. |
| |
| Keywords: | Image sampling DA converter Laser scanning Ring down effect |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《光子学报》浏览原始摘要信息 |
|
点击此处可从《光子学报》下载全文 |
