We analyse a class of simple statistics, which we call sums of conjugate products, for the purpose of detecting tones and chirps in noise. These statistics have been studied before for their powers of estimation. In this paper, we derive their asymptotic statistics and compare their discriminating power against the energy detector. We find that a modest improvement over the energy detector is a...

The majority of lab-based X-ray sources are polychromatic and not easily tunable, which can make the 3D quantitative analysis multi-component samples challenging. lack effective materials separation when using conventional tube has motivated development a number potential solutions including application dual-energy computed tomography (CT) as well use filters. Here, we demonstrate simultaneous ...

Three-dimensional (3D) shape discrimination could be achieved using relative disparity signals or it could be achieved using a higher-order disparity derivative detector. Two 3D shape discrimination tasks were used to distinguish between these possibilities: a within-shape task and a between-shape task. Disparity thresholds were larger when discriminating within the same shape than when discrim...

Gabor-based Face representation has achieved great success in face recognition, while whether and how it can be applied to face detection is rarely studied. This paper originally investigates the Gabor feature based face detection method, and proposes a coarse-to-fine hierarchical face detector combining the high efficiency of Harr features and the excellent discriminating power of the Gabor fe...

We present the development of a neutron detector array module made with $\textit{para}$-terphenyl, bright, fast, n/$\gamma$ discriminating crystalline organic scintillator. The is comprised 2 cm $\times$ $\textit{p}$-terphenyl crystals that have been optically coupled together to create $\textit{pseudo-bar}$ module. While only relying on two photo detectors, capable distinguishing interactions ...

We propose a class of benchmarks for edge detector evaluation that require no ground truth. Each benchmark consists of a large number of images of a carefully designed scene for which we enforce a constraint on the edges, for example, that they are co-linear. We sample the space of edge appearances as densely as possible by capturing the images under widely varying imaging conditions. Not only ...