Real-time storage of high-speed CCD image stream based on computer bus

被引：0

作者：

Ren, GQ ^{[1
]}

Wu, QZ ^{[1
]}

Yang, M ^{[1
]}

Jiang, P ^{[1
]}

机构：

[1] CAS, Inst Opt & Elect, Chengdu 610209, Peoples R China

来源：

ELECTRONIC IMAGING AND MULTIMEDIA TECHNOLOGY III | 2002年 / 4925卷

关键词：

image capture; data storage; PCI bus; SCSI interface; RTOS;

D O I：

10.1117/12.481625

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

For high-speed data stream from a high performance CCD image sensor, optimizing data channel and extending bus bandwidth are essential to ensure real-time storage of image, based on present computer architecture and SCSI technology. This paper put forwards a method of bypassing the main memory to directly transfer data from an image acquisition device to a SCSI hard disks array in this paper. Moreover, It describes the process of creating a high-speed data channel in detail. In order to simplify the structure of CCD image storage system, an embedded sample has been designed. A series of tests show that the storage rate will be up to 130MB/s if designed on embedded RTOS platform and 64-bit/33MHz PCI bus, so it can meet the needs of some high-speed CCD applications where speed and image quality are crucial.

引用

页码：436 / 440

页数：5