A real-time multi-scale 2-D Gaussian filter based on FPGA
文献类型：会议论文
| 作者 | Luo HB(罗海波) ; Gai XQ(盖兴琴); Chang Z(常铮); Hui B(惠斌)
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| 出版日期 | 2014 |
| 会议名称 | International Symposium on Optoelectronic Technology and Application 2014 |
| 会议日期 | May 13-15, 2014 |
| 会议地点 | Beijing, China |
| 关键词 | Multi-scale 2-D Gaussian filter Multi-scale 2-D convolution Real-time implementation Parallel pipeline In-place operation CAFIFO FPGA |
| 页码 | 1-7 |
| 中文摘要 | Multi-scale 2-D Gaussian filter has been widely used in feature extraction (e.g. SIFT, edge etc.), image segmentation, image enhancement, image noise removing, multi-scale shape description etc. However, their computational complexity remains an issue for real-time image processing systems. Aimed at this problem, we propose a framework of multi-scale 2-D Gaussian filter based on FPGA in this paper. Firstly, a full-hardware architecture based on parallel pipeline was designed to achieve high throughput rate. Secondly, in order to save some multiplier, the 2-D convolution is separated into two 1-D convolutions. Thirdly, a dedicate first in first out memory named as CAFIFO (Column Addressing FIFO) was designed to avoid the error propagating induced by spark on clock. Finally, a shared memory framework was designed to reduce memory costs. As a demonstration, we realized a 3 scales 2-D Gaussian filter on a single ALTERA Cyclone III FPGA chip. Experimental results show that, the proposed framework can computing a Multi-scales 2-D Gaussian filtering within one pixel clock period, is further suitable for real-time image processing. Moreover, the main principle can be popularized to the other operators based on convolution, such as Gabor filter, Sobel operator and so on. |
| 收录类别 | EI ; CPCI（ISTP） |
| 产权排序 | 1 |
| 会议录 | Proc. Of SPIE 9301, International Symposium on Optoelectronic Technology and Application
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| 会议录出版者 | SPIE |
| 会议录出版地 | Bellingham, WA |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| WOS记录号 | WOS:000349327100004 |
| 源URL | [http://ir.sia.cn/handle/173321/15331]  |
| 专题 | 沈阳自动化研究所_光电信息技术研究室 |
| 推荐引用方式 GB/T 7714 | Luo HB,Gai XQ,Chang Z,et al. A real-time multi-scale 2-D Gaussian filter based on FPGA[C]. 见:International Symposium on Optoelectronic Technology and Application 2014. Beijing, China. May 13-15, 2014. |
入库方式： OAI收割
来源：沈阳自动化研究所
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