In current field of CCD measurement, large area and high resolution CCD is used to obtain big measurement image, so
that, speed and capacity of CCD requires high performance of later storage and process system. The paper discusses
how to use SCSI hard disk to construct storage system and use DSPs and FPGA to realize image compression. As for
storage subsystem, Because CCD is divided into multiplex output, SCSI array is used in RAID0 way. The storage
system is com posed of high speed buffer, DM A controller, control M CU, SCSI protocol controller and SCSI hard disk.
As for compression subsystem, according to requirement of communication and monitor system, the output is fixed
resolution image and analog PA L signal. The compression means is JPEG 2000 standard, in which, 9/7 wavelets in
lifting format is used. 2 DSPs and FPGA are used to com pose parallel compression system. The system is com posed of
FPGA pre-processing module, DSP compression module, video decoder module, data buffer module and
communication module. Firstly, discrete wavelet transform and quantization is realized in FPGA. Secondly, entropy
coding and stream adaption is realized in DSPs. Last, analog PA L signal is output by Video decoder. Data buffer is
realized in synchronous dual-port RAM and state of subsystem is transfer to controller. Through subjective and
objective evaluation, the storage and compression system satisfies the requirement of system.