Journal of Applied Optics, Volume. 44, Issue 4, 777(2023)
Infrared image enhancement algorithm based on secondary guided filtering and its implementation on FPGA
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Table 1. Main port information
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端口 定义 端口 定义 sink_sop 输入数据流开始标志 source_sop 输出数据流开始标志 sink_valid 输入数据有效标志 source_valid 输出数据有效标志 sink_data 输入数据 source_data 输出数据 sink_eop 传输结束标志 source_eop 输出数据流结束信号 sink_ready 可接收数据标志 source_ready 输出数据流使能信号 k0 细节1加权系数 k1 细节2加权系数
Table 2. Information entropy of enhancement results by different algorithms
View tableView in ArticleTable 2. Information entropy of enhancement results by different algorithms
图像 原图 直方图均衡 模糊集增强 一次引导滤波 文献[ 11 ]文献[ 13 ]本文算法 Image1 7.8825 7.7076 7.0103 7.8827 7.4627 7.1052 7.7674 Image2 7.5653 7.3454 6.6922 7.5851 7.6509 6.7693 7.5858 Image3 7.7749 7.5787 7.2605 7.8086 7.4477 6.9967 7.7865
Table 3. Average contrast of enhancement results by different algorithms
View tableView in ArticleTable 3. Average contrast of enhancement results by different algorithms
图像 原图 直方图均衡 模糊集增强 一次引导滤波 文献[ 11 ]文献[ 13 ]本文算法 Image1 225.3168 312.0974 335.1146 553.1034 307.5145 362.3628 1271.3109 Image2 29.4893 62.5095 47.6546 65.3324 60.8801 66.9951 149.7074 Image3 168.0778 297.9194 285.8943 479.9027 387.8126 323.4161 1118.4183
Table 4. Average gradient of enhancement results by different algorithms
View tableView in ArticleTable 4. Average gradient of enhancement results by different algorithms
图像 原图 直方图均衡 模糊集增强 一次引导滤波 文献[ 11 ]文献[ 13 ]本文算法 Image1 0.0565 0.0645 0.0612 0.0951 0.0706 0.0669 0.1422 Image2 0.0174 0.0242 0.0208 0.0273 0.0259 0.0242 0.0403 Image3 0.0557 0.0714 0.0659 0.0991 0.0818 0.0733 0.1500
Table 5. Infrared image enhancement processing time on different platforms
View tableView in ArticleTable 5. Infrared image enhancement processing time on different platforms
处理平台 工作时钟/GHz 分辨率/pixel 时间/ms PC 3.2 640×512 100.79 FPGA 40 640×512 10.12
Table 6. FPGA resource usage
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资源类型 使用数量 总体数量 占比/% 逻辑资源 10000 113560 9 总块存储器位 1114 288 12492800 9 总引脚数 30 616 5 DSP模块 5 342 1
Table 7. Maximum clock frequency in time series analysis report
View tableView in ArticleTable 7. Maximum clock frequency in time series analysis report
最大时钟频率 受限最大时钟频率 时钟名 42.01 MHz 42.01 MHz clk
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Han JIANG, Jun WU. Infrared image enhancement algorithm based on secondary guided filtering and its implementation on FPGA[J]. Journal of Applied Optics, 2023, 44(4): 777
Paper Information
Category: Research Articles
Received: Aug. 22, 2022
Accepted: --
Published Online: Aug. 10, 2023
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