Lassi Korhonen

University of Oulu · Applied and Computational Mathematics

Motivation to study is a crucial factor in passing courses. The problem of the lack of motivation is often present especially in mathematics courses for engineers because the relation between mathematics and engineering studies is not clear enough for students. In this paper, we analyze and present the reasons for students’ initial motivation and t...

An image segmentation process can be considered as a process of solving a pixel clustering problem. This paper represents and combines a new clustering algorithm that we call as a Diffusion Tracking (DT) algorithm and a new clustering based image segmentation algorithm. The DT algorithm is related to classical spectral clustering techniques but ove...

Different clustering algorithms are widely used for image segmentation. In recent years, spectral clustering has risen among the most popular methods in the field of clustering and has also been included in many image segmentation algorithms. However, the classical spectral clustering algorithms have their own weaknesses, which affect directly to t...

Image stitching is an image processing method, where multiple photographs covering different parts of the same scene, are combined to form a single wide-angle image. Stitching is a very challenging task, and during the past decades many algorithms have been developed for it. Unfortunately, there has been no objective way to measure the quality of s...