一种融合光照和彩色信息的图像匹配算法 
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Image Matching Algorithm Based on Exposure and Color Information
哈尔滨理工大学自动化学院, 黑龙江 哈尔滨 150080
图 & 表
图 1. 灰度图对比。(a)原始灰度图;(b)经过算法补偿后的灰度图
Fig. 1. Grayscale contrast. (a) Original grayscale image; (b) grayscale image after algorithm compensation
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图 2. 算法流程图
Fig. 2. Algorithmic framework
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图 3. 实验测试图片。(a)(b)书籍匹配图片;(c)(d)不同角度广场图片;(e)(f)不同角度风景建筑图片
Fig. 3. Experimental test images. (a)(b) Book matching images; (c)(d) square images with different angles; (e)(f) scenery building images with different angles
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图 4. 融合光照和彩色信息的Harris-SIFT算法匹配结果。(a)图3中(a)(b)匹配;(b)图3中(c)(d)匹配;(c)图3中(e)(f)匹配
Fig. 4. Image matching results of Harris-SIFT algorithm with exposure and color information. (a) Matching of Figs. 3 (a) and (b); (b) matching of Figs. 3(c) and (d); (c) matching of Figs. 3(e) and (f)
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图 5. Harris-SIFT算法匹配结果。(a)图3中(a)(b)匹配;(b)图3中(c)(d)匹配;(c)图3中(e)(f)匹配
Fig. 5. Image matching results for Harris-SIFT algorithm. (a) Matching of Figs. 3 (a) and (b); (b) matching of Figs. 3(c) and (d); (c) matching of Figs. 3(e) and (f)
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表 1两种算法特征点检测时间统计
Table1. Statistic of feature point detection time of two algorithms
| Figure | Number of feature points | Time of feature points detection /s |
|---|
| Harris-SIFT | Proposed algorithm | Harris-SIFT | Proposed algorithm |
|---|
| Fig.3 (a) | 643 | 987 | 3.31 | 2.94 | | Fig.3 (c) | 315 | 526 | 1.49 | 1.37 | | Fig.3 (e) | 884 | 1245 | 3.47 | 2.96 |
|
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表 2本文方法的准确率和所用时间
Table2. Accuracy and cost time of the proposed algorithm
| Figure | Number offeature points | Number ofmatches | Number ofcorrect matches | Percent of correctmatches /% | Totaltime /s |
|---|
| Fig.3 (a) | 987 | 232 | 214 | 92.24 | 4.53 | | Fig.3 (b) | | 1186 | | Fig.3 (c) | 526 | 103 | 92 | 89.32 | 1.56 | | Fig.3 (d) | | 476 | | Fig.3 (e) | 1245 | 146 | 129 | 88.36 | 4.09 | | Fig.3 (f) | | 1023 |
|
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表 3Harris-SIFT算法的准确率和所用时间
Table3.
| Figure | Number offeature points | Number ofmatches | Number ofcorrect matches | Percent ofcorrect matches /% | Totaltime /s |
|---|
| Fig.3 (a) | 643 | 192 | 167 | 86.97 | 4.99 | | Fig.3 (b) | | 746 | | Fig.3 (c) | 315 | 117 | 98 | 83.76 | 1.72 | | Fig.3 (d) | | 376 | | Fig.3 (e) | 884 | 279 | 239 | 85.66 | 4.39 | | Fig.3 (f) | | 832 |
|
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张庆鹏, 曹宇. 一种融合光照和彩色信息的图像匹配算法[J]. 激光与光电子学进展, 2019, 56(19): 191004. Qingpeng Zhang, Yu Cao. Image Matching Algorithm Based on Exposure and Color Information[J]. Laser & Optoelectronics Progress, 2019, 56(19): 191004.
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