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A new method to detect the metallic crack is proposed in this paper that is based on the magnetic optic image. As an improvement of detection device, the magnetic optic image is more and more accurate and some magnetic domain can be detected using the experiment device. And the magnetic domain in the image is as the similar as the crack, so it is hard to recognize the real crack. The new method utilize...
Face detection is an important step in any face recognition systems, for the purpose of localizing and extracting face region from the rest of the images. The algorithms were built in C/C++ code and collaborated with OpenCV library. However, face detection system require high performance resources due to heavy real time measurement, in additional, it needs to be run on embedded platform. Therefore,...
This paper presents the measurement and characterization of single coal particles in a drop tube furnace through high speed imaging and image processing. A high speed camera coupling with a long distance microscope is employed to acquire the images of the particle during its residence time in the furnace. A set of physical quantities of the particle, including size, shape and boundary roughness, are...
Visual odometer is a technique that permit to measure the velocity of a vehicle by the elaboration of a video source from a camera solidly fixed to it. Actual cameras are cheap and have high resolution and fast frame rate, with these characteristics it become really easy to estimate the ego motion with a really high accuracy. It is possible to achieve a resolution in position around 20–30 cm. The...
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