摘要
采用FPGA和DSP的结构实现实时图像采集处理系统,利用FPGA运行速度快、并行处理能力强的优势,采用"对数拉伸"算法对摄像头采集的数据进行前期预处理,达到图像增强,使得停车场类昏暗光线图像亮度分布不均匀的图像变得清晰;利用DSP具有较强处理复杂算法的优势,对FPGA传送过来的分块图像数据采用JPEG并行压缩算法进行图像的压缩.实验结果表明,图像增强模块能够明显改善图片质量,FPGA和DSP的结构能够很好的满足系统实时性的要求.
The real-time image acquisition system implemented in the structure of FPGA with DSP take advantages of FPGA high running speed and powerful parallel processing ability, pre-process camera data by adopting logorithmic stretching algorithm to enhance image so that the uneven light intensity images in dim parking lot like environment can become more clear. DSP＇s stronger sophisticated algorithm processing ability enables segmented image data delivered from FPGA be compressed by means of JPEG parallel algorithm. Expriments show that image enhancing module can improve picture quality apparently and FPGA with DSP structure can well meet the demand of real-time system design.
出处
《哈尔滨理工大学学报》
CAS
北大核心
2016年第4期40-44,共5页
Journal of Harbin University of Science and Technology
基金
黑龙江省自然科学基金(F200805)
黑龙江省教育厅科学技术研究项目(12531107)
