An accurate comparison of multimodal and/or interindividual 3D image datasets of brains requires geometric transformation techniques (warping) to reduce geometric variations. Here, a subset of warping techniques, namely point-based warping, is investigated. For this kind of warping landmarks between datasets have to be defined. In large 3D datasets manually setting of landmarks is timeconsuming...

This paper presents an efficient inverse warping algorithm for generating novel views by combining multiple reference images taken from different viewpoints. The method proceeds in three steps. Firstly, the reference images are preprocessed for extracling edge pixels. Secondly, an inverse warping is performed to render the desired image from one primary reference image. By taking advantages of ...

An important hypothesis of the research reported in this paper is that dynamic space warping (DSW), a dynamic programming (DP) technique (Bellman 1965, Brown 1996), can be effectively used for object matching and for inference of the image registration warping function. For this end, a novel, robust, and efficient method for non-rigid image registration using DSW in the “length–code” domain is ...

Music alignment links events in a score and points on the audio performance time axis. All the parts of a recording can be thus indexed according to score information. The automatic alignment presented in this paper is based on a dynamic time warping method. Local distances are computed using the signal’s spectral features through an attack plus sustain note modeling. The method is applied to m...

Complete details for the approach outlined here are given in Lindström et al. (In Prep). The main idea of the approach is to apply image warping to the forecast field to make traditional verification comparisons of the raw fields, the fields after having applied an affine transformation to the forecast field, and finally to the fields after having additionally applied a nonlinear transformation...

Warping is an effective visual homing method for robot local navigation. However, the performance of the warping method can be greatly influenced by the changes of the environment in a real scene, thus resulting in lower accuracy. In order to solve the above problem and to get higher homing precision, a novel robot visual homing algorithm is proposed by combining SIFT (scale-invariant feature t...

Our work focuses on optically reconstructing the stereo audio signal of a 33 rpm long-playing (LP) record using a white-light interferometry-based approach. Previously, a theoretical framework was presented, alongside the primitive reconstruction result from a few cycles of a stereo sinusoidal test signal. To reconstruct an audible duration of a longer stereo signal requires tackling new proble...

Nowadays a wide variety of warping applications is known, like educational ones and entertainment ones. The method presented in this work modifies conventional warping techniques in order to applicate it in ageing facial manipulation. We used ageing curves of facial region to show forward and backward ageing face.