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We present a vision based method to estimate the respiration rate of subjects from their chest movements. In contrast to alternative approaches, our method is fully automated, non-invasive, robust to occlusions, and only depends on off-the-shelf hardware. We project a fixed infrared (IR) dot pattern. The dots are detected using a camera with a matching IR filter. We estimate the dots' barycenters...
To improve the precision of land-cover change detection and remedy the shortage of single change detection technique, an integrated correspondence analysis (CA) differencing method was developed, which combined CA method with image differencing. After the spectral transformation of the individual date images into component space using CA, the first component (PCI) of the date 1 image was subtracted...
Hyperspectral unmixing aims at identifying the hidden spectral signatures (or endmembers) and their corresponding proportions (or abundances) from an observed hyperspectral scene. Many existing hyperspectral unmixing algorithms were developed under a commonly used assumption that pure pixels exist. However, the pure-pixel assumption may be seriously violated for highly mixed data. Based on intuitive...
In this paper, a method to online detect and diagnose brick interior different types of faults is proposed based on striking sound. Apply spectrum analysis to striking sound signals of bricks normal and with different types of faults, pick out characteristic frequencies of every spectrum to form data matrixes, then apply principal component analysis to build a normal and several different faults principal...
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