Abstract

Due to requirements and necessities in digital image research, image matching is considered as a key, essential and complicating point especially for machine learning. According to its convenience and facility, the most applied algorithm for image feature point extraction and matching is Speeded-Up Robust Feature (SURF). The enhancement for scale invariant feature transform (SIFT) algorithm promotes the effectiveness of the algorithm as well as facilitates the possibility, while the application of the algorithm is being applied in a present time computer vision system. In this research work, the aim of SURF algorithm is to extract image features, and we have incorporated RANSAC algorithm to filter matching points. The images were juxtaposed and asserted experiments utilizing pertinent image improvement methods. The idea based on merging improvement technology through SURF algorithm is put forward to get better quality of feature points matching the efficiency and appropriate image improvement methods are adopted for different feature images which are compared and verified by experiments. Some results have been explained there which are the effects of lighting on the underexposed and overexposed images.

Highlights

  • Image matching is an important technology in image processing

  • The idea based on merging improvement technology through Speeded-Up Robust Feature (SURF) algorithm is put forward to get better quality of feature points matching the efficiency and appropriate image improvement methods are adopted for different feature images which are compared and verified by experiments

  • SURF algorithm is an improvement of the scale invariant feature transform (SIFT) algorithm

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Summary

Introduction

Image matching is an important technology in image processing. Point feature matching is a basic method in image matching. SURF feature matching works well when the light is good but it doesn’t match well when the light is insufficient or overexposed [6] [7]. This paper proposes the idea of combining image improvement technology with SURF algorithm by using different image improvement methods for processing in advance and through experimental verification, the SURF algorithm combined with image improvement technology improves feature extraction and matching [11] [12]

SURF Algorithm Principle
Extraction of Local Feature Points
Generate Feature Point Descriptor
Feature Point Matching
RANSAC Algorithm for Fine Matching
Image Improvement Algorithm
Gamma Transform
Histogram Equalization
Laplace Operator Method
Homomorphic Filtering
Experimental Results and Analysis
Conclusion

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