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Although the railway transport is regarded as a relatively safe transportation tool, many railway accidents have still happened worldwide. In this research, an image-based 3D scene reconstruction framework was proposed to help railway accident emergency rescues. Based on the improved constrained non-linear least square optimization, the framework can automatically model the accident scene with only...
Based upon an image reconstruction algorithm which has been proposed in medical imaging field, an algorithm termed as Multiply Back Projection (MBP) is firstly used in GPR imaging. This algorithm is similar to the conventional Back Projection (BP) imaging algorithm except for the additional pairing multiplication procedure. In the MBP algorithm, time delays from each synthetic aperture position to...
External beam radiation therapy attempts to deliver a high dose of ionizing radiation to destroy cancerous tissue, while sparing healthy tissues and organs at risk (OAR). Advances in intensity modulated radiotherapy treatment (IMRT) call for a greater understanding of uncertainties in the treatment process and more rigorous protocols leading to greater precision in treatment delivery. The degree to...
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