Non-local means is a recently proposed denoising technique that better preserves image structures than other methods. However, the computational cost of non-local means is prohibitive, especially for large 3D images. Modifications have previously been proposed to reduce the cost, which result in image artefacts. This paper proposes a compact rotation invariant descriptor. Testing demonstrates i...

The predictive power and overall computational efficiency of Diffusionconvolutional neural networks make them an attractive choice for node classification tasks. However, a naive dense-tensor-based implementation of DCNNs leads to O(N) memory complexity which is prohibitive for large graphs. In this paper, we introduce a simple method for thresholding input graphs that provably reduces memory r...

We present efficient methods for object recognition, using the constellation model. This model represents objects as constellations of rigid features, with the variability between them being represented by a joint probability density function. Using simple, exhaustive methods, the computational requirements for this approach quickly become prohibitive. By using A* search methods, accompanied by...

This paper presents a review on different digital watermarking techniques and their properties. The main reason for development of digital watermarking research is to protect intellectual properties of the digital world. Since the recent technology makes it easy copying the digital contents without any restrictions and editing without any prohibitive professional efforts. In the absence of prot...

COD is usually measured and the test is simple and easy to perform with the right equipment and can be done in 2 hours. BOD usually takes 5 days and TOC used to require large expensive pieces of equipment that could measure the sample in minutes, but was cost prohibitive. There are now test in tube kits that utilize COD digestors to run a test similar to a COD test method. Below are more detail...

Pulmonary arterial hypertension (PAH) is a complex disease leading to right ventricular (RV) failure and death, because of a proliferative vascular remodeling that obstructs the lumen of resistance pulmonary arteries (PA). Despite tremendous investments from the scientific community and industry over the past 20 years, the disease remains deadly.1 Currently approved therapies act mainly as vaso...

24 Changes are needed to make significant improvements to operational availability and must be considered as early as possible during the design cycle; however, after initial system development, design changes are typically cost-prohibitive. The Department of Defense needs to ensure maintenance and supportability are considered during all phases of the system development cycle, particularly dur...

We report on an 8-year-old patient with septicaemia unresponsive to therapy for five weeks. Undetected, extended-spectrum β-lactamase (ESBL) production by the infecting Klebsiella strain was regarded as responsible for treatment failure. Intravenously administered imipenem during the sixth week led to sustained resolution of fever. Resource-limited hospitals can incur prohibitive costs from ESB...

An important problem when using Stochastic Inversion Transduction Grammars is their computational cost. More specifically, when dealing with corpora such as Europarl only one iteration of the estimation algorithm becomes prohibitive. In this work, we apply a reduction of the cost by taking profit of the bracketing information in parsed corpora and show machine translation results obtained with ...

Received May 2009 Accepted October 2009 INTRODUCTION Learning laparoscopic skills is difficult in the current era of fast developing laparoscopic urology. There are many commercially available good-quality laparoscopy trainers, but their prohibitive costs have limited their use in developing countries. To answer this problem, we conceptualized a home-made economical digital camera coupled with ...