Laser Spot Center Detection and Comparison Test

Laser Spot Detection

The paper proposes method for detection of laser spot emitted by a laser pointer. A camera captures projection screen on which is displayed image from a digital projector and also laser spot from a laser pointer. Our developed algorithm can effectively detect red and green laser spot in real-time using image processing and by setting up camera to be captured high intensity of laser beam. To dem...

Laser Spot Detection Based on Reaction Diffusion

Center-location of a laser spot is a problem of interest when the laser is used for processing and performing measurements. Measurement quality depends on correctly determining the location of the laser spot. Hence, improving and proposing algorithms for the correct location of the spots are fundamental issues in laser-based measurements. In this paper we introduce a Reaction Diffusion (RD) sys...

Laser Fluorosensor for Oil Spot Detection

Oil and water fluorescence properties were studied under their excitation by 266 and 355 nm light, corresponding to the fourth and third harmonics of a Nd:YAG laser. The oil spill detection fluorosensor designed for onshore or shipboard installation is described and its test results are presented. The fluorosensor enables detection of several μm thick films of different oils and its products fr...

Spot test for detection of sickling hemoglobin.

We describe a simple, noninstrumental procedure for detecting hemoglobin S in samples of blood on filter paper, with use of small volumes of reagents. The method depends on the differential solubilities of reduced sickling and nonsickling hemoglobin in phosphate solutions (1, 2) or Sickledex reagent’ and the apparent solubilizing effect of urea on reduced hemoglobin S (3). The color of paired p...

Detection of rotavirus by Latex Agglutination Test (Rotales); Comparison with Electron Microscopy and Complement Fixation Test