Restricted by the ability of depth perception, all Multi-view 3D object detection methods fall into bottleneck accuracy. By constructing temporal stereo, estimation is quite reliable in indoor scenarios. However, there are two difficulties directly integrating stereo outdoor multi-view detectors: 1) The construction stereos for views results high computing costs. 2) Unable to adapt challenging ...

In this paper, a new approach for optimizing disparity candidates space is proposed for the solution of dense stereo matching problem. The main objectives of this approachare the reduction of average number of disparity candidates per pixel with low computational cost and high assurance of retaining the correct answer. These can be realized due to the effective use of multiple radial windows, i...

abstract background and aim: cone beam computed tomography (cbct) produces high-quality data in periodontal diagnosis and treatment planning. the aim of this study was to compare the accuracy of cbct with intraoral digital and conventional radiography in the measurement of periodontal bone defects.  methods and materials: in this diagnostic research, two hundred and eighteen artificial osseous ...

Objective To test the hypothesis that radiography of the lumbar spine in patients with low back pain is not associated with improved clinical outcomes or satisfaction with care. Design Randomised unblinded controlled trial. Setting 73 general practices in Nottingham, north Nottinghamshire, southern Derbyshire, north Lincolnshire, and north Leicestershire. 52 practices recruited participants to ...

In the two years after an ultrasound service was introduced at this hospital obstetric referrals for abdominal radiography decreased by over 55%. Most of these were for estimation of fetal maturity. Out of 349 such patients subjected to radiography in 1976, 176 had already been examined by ultrasound; in only four did radiography appear to influence management. We believe that if a satisfactory...

True positive result denotes correct placement of hemodialysis catheter according to bubble-enhanced ultrasound and chest radiography. True negative result 1⁄4 incorrect placement of hemodialysis catheter according to bubble-enhanced ultrasound and chest radiography. False positive result 1⁄4 correct placement of hemodialysis catheter according to bubble-enhanced ultrasound not confirmed by che...