KEYWORDS: 3D image processing, Field programmable gate arrays, Image processing, 3D acquisition, Video, 3D modeling, 3D scanning, Video processing, Control systems, 3D displays
The new reconfigurable 3D laser colour information acquisition system has been developed to overcome the problems of the former three-dimensional laser color scanner (3DLCS). The system basic theory of measurement and whole structure are introduced. The hardware system architecture based on FPGA parallel processor has been designed and its work principle has been discussed. The key algorithms of extracting central line of laser stripe, head contour and central colour line from video image are accomplished by FPGA processor, then these important information is sent into host computer through PCI interface which accomplish advanced image processing, 3D reconstruction and 3D modeling. The key algorithms are described too. The system can acquire 3D and colour information of object in real time and the 3D images are displayed promptly on the screen of host computer. Finally, the experimental results of system are shown. By adopting ASIC and master-slave system architecture, it enhances the speed of obtaining 3D information of object greatly and overcome the computational bottleneck. The system performance is improved and the devices are low cost. In addition, it can implement special function and has good security and is applicable to many cases.
KEYWORDS: Digital signal processing, Image processing, Digital image processing, Array processing, Telecommunications, Computing systems, Control systems, Data communications, Missiles, Image segmentation
This paper introduces a high-speed parallel system based on DSP to process aerial image. The system is of the master-slave architecture. The master system is composed of general computer. Its slave system based on high speed DSP TMS320C6201 array can process real time aerial image concurrently. The data communicates between the master system and the slave system through bus interface. In this thesis, on the basis of the fundamental characters of digital image processing, we adopt domain decomposition method suiting digital image processing. The mode can parallelize serial digital image-processing algorithms which process digital images on spatial domain. This algorithm applies in many image algorithms and can be realized easily. At the same time it ensures every DSP load balance in the course of processing aerial image. Experiments show the system is effective, simple and steady.
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