Laser & Optoelectronics Progress, Volume. 58, Issue 20, 2015005(2021)
Fast Corner Detection Based on Multi-Directional Structure Tensor
Fig. 1. Integral image schematic diagram
Fig. 2. An example of box filter. (a) Anisotropic directional derivative filter (θ=π/2); (b) corresponding box filter template and its size is 9×9
Fig. 3. Templates of box filter with six filter orientations. (a) θ=0; (b) θ=π/6; (c) θ=π/3; (d) θ=π/2; (e) θ=2π/3; (f) θ=5π/6
Fig. 4. Construction process of integral image
Fig. 5. Proposed corner detection algorithm
Fig. 6. Test image set for the evaluation about repeatability under affine transformation
Fig. 7. Average repeatability of the proposed method under different parameters. (a) Rotation; (b) shear transform
Fig. 8. Average repeatability under six image transformations for ten detectors. (a) JPEG compression; (b) rotation; (c) additive white Gaussian noises; (d) non-uniform scaling; (e) shear transform; (f) uniform scaling
Fig. 9. Test images and their ground truth corner positions. (a) Laboratory; (b) geometric image; (c) block image
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Ning Li, Junfeng Jing, Weichuan Zhang, Mengmeng Bai, Jiurui Sun. Fast Corner Detection Based on Multi-Directional Structure Tensor[J]. Laser & Optoelectronics Progress, 2021, 58(20): 2015005
Category: Machine Vision
Received: Nov. 2, 2020
Accepted: Jan. 20, 2021
Published Online: Oct. 14, 2021
The Author Email: Jing Junfeng (jingjunfeng0718@sina.com)