In this paper, a robust approach using a shape distribution histogram (SDH) feature and modified sparse representation classification (MSRC) for pedestrian detection in thermal infrared imagery is proposed. In this framework, the candidate regions that are more likely to contain the pedestrians are first detected based on the Contour Saliency Map. Then distances between random points on the thi...

Solar energy is a clean and renewable source of produced by solar panels. panels deteriorate over time, resulting in generation faults. Faults reduce the overall power capacity photovoltaic (PV) plants. A variety atmospheric functional conditions contribute to formation hotspots on panels, indicating an increase temperature lower efficiency. Early detection faults during PV module inspection mo...

We present a scanning probe microscope based on optical tweezers for three-dimensional imaging of the topology of transparent material in the nanometer range. A spherical nanoparticle serves as a probe. An optical trap moves it through the sample ~e.g., a polymer network!, while the position of the particle center is recorded by three-dimensional interferometry. Accessible volumes are reconstru...

Using Monte Carlo histogram methods, the microcanonical caloric curve is computed for the Ising model in two and three dimensions with fixed magnetization. Whereas the signatures of a possible first order phase transition are clearly visible for large systems, intriguing finite size effects are revealed for smaller system sizes. The behaviour of the caloric curve is studied in a systematic way....

Ultrasound above 14 MHz images epidermis, dermis, and subcutaneous tissues in real time. Tumor depth is ascertained with B-mode. Three-dimensional imaging depicts nonpalpable, in-transit, and satellite lesions. Doppler blood flow technologies measure tumor neovascularity and map vascular structures. Three-dimensional Doppler histogram reconstruction measures tumor aggression and metastatic pote...

Useful biophysical information such as surface temperature and surface energy flux provided by thermal infrared (TIR) remote sensing sensors are commonly used for studying urban temperature variations and urban heat islands. However, an important limitation of TIR imagery is the influence of local microclimatic variability (i.e., wind, precipitation and humidity) on sensor observations. This ca...

In this paper, a general framework for image contrast enhancement algorithm based on an optimization problem is presented. Through this optimization, the intensities can be better distributed. The algorithm is based on the facts that the histogram of the enhanced image is close to the input image histogram and uniform distribution, simultaneously. Based on this fact, we obtain a closed form opt...

Contrast enhancement is an important factor in the image preprocessing step. One of the widely accepted contrast enhancement method is the histogram equalization. Although histogram equalization achieves comparatively better performance on almost all types of image, global histogram equalization sometimes produces excessive visual deterioration. A new extension of bi-histogram equalization call...