A solution aims on high-speed and real-time hyperspectral image reconstruction from interference data has been proposed. Multi-DSP parallel data processing based on the CPCI Express Standard bus architecture is used in this technique. The presented hardware platform includes two clusters of interconnected DSPs. The interconnection among DSPs in each cluster utilizes topological framework which combines interconnecting Link port architecture and sharing bus storage. Based on the indicated hardware platform, the reconstruction of interference spectroscopy is completed by 8 parallel multi-DSPs from the frame structures of interference data cube. And the separation of frame structures is based on the features of interference date structure and spectroscopy data inverse algorithm. Experimental results demonstrate thathighly accurate spectralreconstruction has been achieved using the 8-DSP parallel processing technique. Compared to image process speed with single DSP, the speedup ratio of proposed technique reaches 7.7. Hence, this technique realizes the requirement of real-time spectral data processing.
© 2015 Optical Society of AmericaPDF Article