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Affine scale space: an affine invariant image structure to promote the detection of correspondences from stereo images
- Source :
- Neurocomputing. 252:34-41
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Calculating the geometry relationship by the positions of the correspondences from stereo images is a fundamental method to obtain the depth information. Such a method was quite widespread and popular thanks to its efficiency and easily accessed implementation. General speaking, the more density of the correspondences are, the more precisely the depth information can be calculated. Theoretically, a sufficient strengthened correspondences match algorithm can be utilized for depth information calculation under any circumstances. Unfortunately, the updated image feature detectors are all sensitive to the view point changes: with the rising of the stereo images' view angle, the number of matched features drastically reduced, resulting in the number of matched features not adequate to cover every details of the stereo images. This disadvantages of feature detections in practice hampers its application for the depth calibration. To tackle the sensitive of view point to stereo images, in this paper, we will propose an affine invariant affine scale space structure, which is more robust to detect the correspondences from stereo images. The purpose of affine scale space is to create a more general approach to the affine invariant image scale representation by modifying the corresponding Gaussian filters in order to cope with the specific change of view point. The affine adaptation of the scale space is to retain a linear relationship with the transiting of the view point. With linear relationship, the affine scale space can be established as a more general approach for the detection of correspondences from stereo images. With a better correspondences detection, a more precise depth information can be made.
- Subjects :
- Harris affine region detector
business.industry
Cognitive Neuroscience
Gaussian
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
020206 networking & telecommunications
02 engineering and technology
Computer Science Applications
Scale space
Affine shape adaptation
symbols.namesake
Artificial Intelligence
Feature (computer vision)
Computer Science::Computer Vision and Pattern Recognition
0202 electrical engineering, electronic engineering, information engineering
symbols
020201 artificial intelligence & image processing
Point (geometry)
Computer vision
Affine transformation
Artificial intelligence
business
Representation (mathematics)
Mathematics
Subjects
Details
- ISSN :
- 09252312
- Volume :
- 252
- Database :
- OpenAIRE
- Journal :
- Neurocomputing
- Accession number :
- edsair.doi...........1fcd4fd368fd4a9bf9d2ce8afd169046