Zhongzhi Tang, Bing Yan, Yan Huang, Chunrong Hua, Dong Zheng. Modified SIFT Algorithm for Image Stereo Matching Based on Bidirectional Pre-Screening[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2210010
- Laser & Optoelectronics Progress
- Vol. 58, Issue 22, 2210010 (2021)
Fig. 1. Simulation of pixel filter
Fig. 2. Schematic of 8-neighborhood ring template
Fig. 3. Processing flow of improved SIFT algorithm
Fig. 4. Test results of images. (a) Test images from different angles; (b) displacement distribution in x direction; (c) displacement distribution in y direction; (d) displacement distribution in main direction
Fig. 5. Test images. (a)(b)(c)(d) Different perspectives; (e) different illumination; (f) different degrees of ambiguity; (g) different degrees of compression
Fig. 6. Feature point matching results of three algorithms. (a) SIFT+RANSAC algorithm; (b) SP-SIFT+RANSAC algorithm; (c) MSIFT+MRANSAC algorithm
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Table 1. Feature point extraction results of each algorithm
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Table 2. Comprehensive performance comparison of each algorithm
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Table 3. Time consuming comparison of each algorithm unit: s
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