In recent years, the application of deep learning has achieved a huge leap in performance remote sensing image super-resolution (SR). However, most existing SR methods employ bicubic downsampling high-resolution (HR) images to obtain low-resolution (LR) and use obtained LR HR as training pairs. This supervised method that uses ideal kernel (bicubic) downsampled train network will significantly ...

Scientific visualization is concerned with the presentation of interactive or animated digital images to users to understand data. The advantages of scientific visualization are: huge amount of data is converted into one picture, it correlates different quantities. One of the problems faced by scientific visualization community is visualization of positive data. Visualization of positive data i...

An important open problem in the synthesis of passive controllers is to obtain a passive network which realizes an arbitrary given impedance function and contains the least possible number of elements. This problem has its origins in electric circuit theory, and is directly applicable to the costeffective design of mechanical systems containing the inerter. Despite a rich history, the problem c...

An overlapping domain decomposition, additive Schwarz, conjugate gradient method is presented for the solution of the linear systems which arise when orthogonal spline collocation with piecewise Hermite bicu-bics is applied to the Dirichlet problem for Poisson's equation on a rectangle .

Quad meshes can be interpreted as tensor-product spline control meshes as long as they form a regular grid, locally. We present a new option for complementing bi-3 splines by bi-4 splines near irregularities in the mesh layout, where less or more than four quadrilaterals join. These new generalized surface and IGA (isogeometric analysis) elements have as their degrees of freedom the vertices of...

We present a method to speed up walkthroughs of static scenes. It involves the creation of a continuousC1 radiosity reconstruction for adaptively sampled regions. This representation is a unified solution to handle unrestricted quadtrees and T-vertices, and allows for the generation of multiple different levels-of-detail of the radiosity function, which is represented as texture maps. The metho...

| Matrix decomposition algorithms employing fast Fourier transforms were developed recently by the authors to solve the systems of linear algebraic equations that arise when piecewise Hermite bicubic orthogonal spline collocation (OSC) is applied to certain separable elliptic boundary value problems on a rectangle. In this paper, these algorithms are interpreted as Fourier methods in analogy wi...

Resolution enhancement (RE) schemes (which are not based on wavelets) suffer from the drawback of losing high-frequency contents (which results in blurring). The discrete-wavelettransform-based (DWT) RE scheme generates artifacts (due to a DWT shift-variant property). A wavelet-domain approach based on dual-tree complex wavelet transform (DT-CWT) and nonlocal means (NLM) for RE of the satellite...

By carefully exploiting the resources of today's computer hardware, interactive ray tracing recently became reality even on a single commodity PC. In most of these implementations triangles are used as the only geometric primitive. However, direct rendering of free-form surfaces would be advantageous for a large number of applications, since robust tessellation of complex scenes into triangles ...

This paper discusses a super-resolution (SR) system implemented on a mobile device. We utilized an Android device’s camera to take successive shots and applied a classical multiple-image super-resolution (SR) technique that utilized a set of low-resolution (LR) images. Images taken from the mobile device are subjected to our proposed filtering scheme wherein images that have noticeable presence...