0000000000736877
AUTHOR
Pekka Neittaanmaki
Analytic and directional wavelet packets in the space of periodic signals
The paper presents a versatile library of analytic and quasi-analytic complex-valued wavelet packets (WPs) which originate from discrete splines of arbitrary orders. The real parts of the quasi-analytic WPs are the regular spline-based orthonormal WPs designed in [2]. The imaginary parts are the so-called complementary orthonormal WPs, which, unlike the symmetric regular WPs, they are antisymmetric. Tensor products of 1D quasi-analytic WPs provide a diversity of 2D WPs oriented in multiple directions. For example, a set of the fourth-level WPs comprises 62 different directions. The designed computational scheme in the paper enables us to get fast and easy implementation of the WP transforms…
Internet of things Enabling Smart School : An Overview
Internet of things (IoT) is making its way in every field of life. Education is not an exception. IoT is making landmark achievements in its applications in the field of education. This paper presents an overview of the key IoT applications in the field of education from the perspective of school management, teachers, and learners enabling smart school concept and challenges and limitations in embarking IoT in educational settings. peerReviewed