摘要
以往由于内存小,CCD的读出过程需小块读出,随时存盘;而且由于小块读出中间停顿,数据质量差;尽管现在超过1兆的微机已相当普遍,然而普通操作系统的内存管理仍局限于640k。目前CCD器件的尺寸越来越大,使这一矛盾变得越来越尖锐。针对这些问题,本文介绍一种用扩充内存作图象数据缓冲区的图象采集处理系统方案,并给出具体实现步骤。
Because of the smaller internal storage, the read-out of a CCD should be carried out with some little blocks and is stored into a disk at any time. The quality of the data is no good owing to the interruption in the process of the reading-out. The internal storage of a normal operating system is still limited to the size of 640k even though the microcomputers of over lM are in common use.Presently, the sizes of CCD chips are larger and larger, and this conflict is sharper and sharper. To counter this conflict, the author introduces a method for using the extended internal stroge as an image buffer and gives the concrete steps of the method. It is considered that this method has a very strong guiding significance to the production of the next generation of an astronomical image system.
出处
《云南天文台台刊》
CSCD
1992年第3期52-57,共6页
Publications of the Yunnan Observatoty
关键词
CCD
计算机
图象处理
CCD Computer application Image processing
