1. INTRODUCTION
iMAGE MATCHING is an important research direction in
computer vision and image processing. It is also a
necessary precondition to solve many practical problems.
Many researchers are dedicated to improving the
performance of image matching techniques, and have
proposed a variety of algorithms [1]. The image matching
algorithms can be divided into two categories: global
feature-based matching algorithms and local feature-based
matching algorithms [2]. Comparing with global featurebased
matching algorithms, local feature-based matching
algorithms are more stable. They have been applied
successfully in many real-world applications, such as object
recognition, texture recognition, image retrieval, robot
localization, video data mining, building panoramas, and
object category recognition [3]-[5].