Blur Invariants for Image Recognition
Blur is an image degradation that is difficult to remove. Invariants with respect to blur offer an alternative way of a~description and recognition of blurred images without any deblurring. In this paper, we present an original unified theory of blur invariants. Unlike all previous attempts, the new theory does not require any prior knowledge of the blur type. The invariants are constructed in the Fourier domain by means of orthogonal projection operators and moment expansion is used for efficient and stable computation. It is shown that all blur invariants published earlier are just particular cases of this approach. Experimental comparison to concurrent approaches shows the advantages of the proposed theory.
Code (0)
등록된 구현이 없습니다.
Tasks
DeblurringSimilar Papers 제목 키워드 기반
Image Moment Invariants to Rotational Motion Blur
Rotational motion blur caused by the circular motion of the camera or/and object is common in life. Identifying objects from images affected by rotational motion blur is challenging because this image degradation severel…
Handwritten Digit Recognitionimage-classificationImage ClassificationTemplate MatchingGeometric Moment Invariants to Motion Blur
In this paper, we focus on removing interference of motion blur by the derivation of motion blur invariants.Unlike earlier work, we don't restore any blurred image. Based on geometric moment and mathematical model of mot…
Image RetrievalRetrievalTemplate MatchingEstimation of Motion Parameters for Ultrasound Images Using Motion Blur Invariants
The quality of fetal ultrasound images is significantly affected by motion blur while the imaging system requires low motion quality in order to capture accurate data. This can be achieved with a mathematical model of mo…
Image Projective Invariants
In this paper, we propose relative projective differential invariants (RPDIs) which are invariant to general projective transformations. By using RPDIs and the structural frame of integral invariant, projective weighted …
Image RetrievalRetrieval3D geometric moment invariants from the point of view of the classical invariant theory
The aim of this paper is to clear up the problem of the connection between the 3D geometric moments invariants and the invariant theory, considering a problem of describing of the 3D geometric moments invariants as a pro…