关键词: 光场, 偏振图像, 多核DSP, 实时处理

Abstract: A fast-extraction and real-time processing method for polarization images based on light field is put forward. With the multi-core DSP TMS320C6678 as the core processor, a series of continuous process including the collection of light field images as well as the extraction and processing of polarization images has been realized. Detailed introduction of system hardware and software design is given. The proposed system uses DSP+FPGA, of which the FPGA module implements the camera-link interface and image acquisition, and the DSP module realizes the image fast-processing algorithm. The collection of light field images, the extraction of polarization images, polarization information inversion and fusion algorithms and the software optimization are key components to ensure  efficient work, therefore, this study puts emphasis discussion on them and proposes corresponding solutions. Experimental results show that the system has realized the multi-core DSP parallel processing with 4 times higher speed than mononuclear DSP processing, which basically achieves fast and real-time processing of light field images and polarization images.

Key words: light field, polarization images, multi-core DSP, real-time processing