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Nonnegative matrix factorization (NMF) as a popular technique to find parts-based representations of nonnegative data has been widely used in real-world applications. Often the data which these applications process, such as motion sequences and video clips, are with ordered structure, i.e., consecutive neighbouring data samples are very likely share similar features unless a sudden change occurs....
Southeast Asia is one of the most rapidly growing regions in the world with natural and cultural resources. It is important to pass on the cultural knowledge to the next generation. Intangible Cultural Heritage like traditional dances, or folk dance is a valuable cultural knowledge to be maintained and passed on by transferring tacit knowledge, and even explicit knowledge such as books, or video presentations...
In this paper, dealing with the case of large movements in active vision applications, we first develop an algorithm to estimate the motion of an object and its background. Furthermore, with the assumption of small translations between successive frames, we develop an active tracking algorithm. Its main advantage is that an area-based projection method is presented which resorts to an area integral...
In this paper, the gradient vector flow fields are introduced in the image anisotropic diffusion, and the shock filter, mean curvature flow and Perona-Malik equation are reformulated respectively in the context of this flow fields. Many advantages over the original models can be obtained, such as numerical stability, a large capture range, and computational simplification etc. In addition, the fairing...
In this paper, we present a motion segmentation approach based on the subspace segmentation technique, the generalized PCA. By incorporating the cues from the neighborhood of intensity edges of images, motion segmentation is solved under an algebra framework. Our main contribution is to propose a post-processing procedure, which can detect the boundaries of motion layers and further determine the...
In this paper, we propose two complete sets of similarity invariant descriptors under the Fourier-Mellin Transform and the Analytical Fourier-Mellin Transform (AFMT) frameworks respectively. Furthermore, their numerical properties are presented and be revealed through image reconstruction. Experimental results indicate that our proposed invariant descriptors can fully reconstruct the original image...
This chapter covers the use of DNA in biological sensing devices. Although DNA has been used for a number of years for in vitro sensing applications, there are several unique challenges to using DNA as in vivo sensors. This chapter covers some of the more significant advances in this field highlighting how these challenges are being met. In doing so, it emphasizes various ways DNA can be immobilized...
In this paper we present a regularity-based caricature synthesis technique from a frontal face image, consisting of shape exaggeration, relationship exaggeration. Three rules are introduced which are important in caricature exaggeration. The first is the relativity concept: the relationship between features of different subjects and the relationship between facial features of the same subject, which...
In this paper, we first briefly reintroduce the 1D and 2D forms of the classical principal component analysis (PCA). Then, the PCA technique is further developed and extended to an arbitrary n-dimensional space. Analogous to 1D- and 2D-PCA, the new nD-PCA is applied directly to n-order tensors (n ges 3) rather than 1-order tensors (1D vectors) and 2-order tensors (2D matrices). In order to avoid the...
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