KEYWORDS: Field programmable gate arrays, Video processing, Digital signal processing, Panoramic photography, Video, Imaging systems, Algorithm development, Signal processing, Infrared imaging, Infrared radiation
During the past decades, signal processing architecture, which is based on FPGA, conventional DSP processor and host
computer, is popular for infrared or other electro-optical systems. With the increasing processing requirement, the former
architecture starts to show its limitation in several respects. This paper elaborates a solution based on FPGA for
panoramic imaging system as our first step of upgrading the processing module to System-on-Chip (SoC) solution.
Firstly, we compare this new architecture with the traditional to show its superiority mainly in the video processing
ability, reduction in the development workload and miniaturization of the system architecture. Afterwards, this paper
provides in-depth description of this imaging system, including the system architecture and its function, and addresses
several related issues followed by the future development. FPGA has developed so rapidly during the past years, not
only in silicon device but also in the design flow and tools. In the end, we briefly present our future system development
and introduce those new design tools to make up the limitation of the traditional FPGA design methodology. The
advanced design flow through Simulink® and Xilinx® System Generator (Sysgen) has been elaborated, which enables
engineers to develop sophisticated DSP algorithms and implement them in FPGA more efficiently. It is believed that this
new design approach can shorten system design cycle by allowing rapid prototyping and refining design process.
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