30 August 2002 Real-time storage of high-speed CCD image stream based on computer bus
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Abstract
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.
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Guoqiang Ren, Guoqiang Ren, Qin Zhang Wu, Qin Zhang Wu, Mei Yang, Mei Yang, Ping Jiang, Ping Jiang, } "Real-time storage of high-speed CCD image stream based on computer bus", Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); doi: 10.1117/12.481625; https://doi.org/10.1117/12.481625
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