Objective Glaucoma has currently become the second leading cause of blindness in world. Serum vitamin B12 level been found to be involved development and progression glaucoma. We performed present study confirm this association. Methods This cross-sectional included 594 participants aged 40 years older National Health Nutrition Examination Survey (NHANES) from 2005 2008. Retinal imaging was using Ophthalmic Digital Imaging system (Retinography) assess retina for presence features...

The microstructure characteristics of TiAl alloy prepared by laser-directed energy deposition (L-DED) are coarse columnar grains parallel to the building direction, which results in serious mechanical properties and anisotropy limits its application. In present study, TiB2 can be used as an effective grain refiner due extremely high Q value (growth inhibition factor; larger alloying element, stronger refinement effect.) B. With addition, alloys with full equiaxed were obtained, size was...

To evaluate orthopedic metal artifact reduction algorithm (O-MAR) in CT at different tube voltages, identify an appropriate low voltage for clinical practice, and investigate its application.The institutional ethical committee approved all the animal procedures. A stainless-steel plate four screws were implanted into femurs of three Japanese white rabbits. Preoperative was performed 120 kVp without O-MAR reconstruction, postoperative 80-140 with O-MAR. Muscular attenuation, index (AI)...

Abstract Fish tracking in the natural underwater environment is of great value for many applications, such as fish behavior analysis and estimation population density. Due to variety swimming postures, uneven illumination, complicated background real-world environment, most existing object algorithms are not ideal tracking. In this paper, a algorithm based on TLD (Tracking-Learning-Detection) proposed, which shape color features fully utilized achieve accurate rapid The proposed mainly...

Loss prevention is a significant challenge in retail enterprises. A percentage of this loss occurs at point sale (POS) terminals. POS data mining tools known collectively as exception based reporting (EBR) are helping retailers, but they have limitations can only work statistically on trends and anomalies digital data. By applying video analytics techniques to transactions, it possible detect fraudulent or anomalous activity the level individual transactions. Very specific behaviors that...

The development of the Internet Things (IoT) stimulates many research works related to Multimedia Communication Systems (MCS), such as human face detection and tracking. This trend drives numerous progressive methods. Among these methods, deep learning‐based methods can spot patch in an image effectively accurately. Many people consider tracking detection, but they are two different techniques. Face focuses on a single image, whose shortcoming is obvious, unstable unsmooth position when...

In this paper, the physical and practical significance of seabed reflection coefficient are studied based on seismic convolution model, which reveals that high frequency signal is sensitive to acoustic impedance changing. Then data acquired in west coast Taiwan Strait used for case study, calculated light sound pressure level reflected wave. comparison with results geological sampling analysis, overall trend fine particles correspond lower coarse greater coefficient. addition, abnormal...

In this letter, we propose a novel approach to detecting and tracking apartment buildings for the development of video-based navigation system that provides augmented reality representation guidance information on live video sequences. For this, building detector tracker. The is based AdaBoost classifier followed by hierarchical clustering. uses modified Haar-like features as primitives. tracker motion-adjusted pyramid implementation Lukas-Kanade tracker, which periodically confirms...

Emotion Model is the basis of facial expression recognition system. The constructed emotional model should not only match expressions with emotions, but also reflect location relationship between different emotions. In this way, it easy to understand current emotion an individual through analysis acquired information. This paper constructs improved three-dimensional for based on fuzzy theory, which corresponds features emotions basic proposed by Ekman. What’s more, motion able divide every...

In this paper, we propose a bilateral tangent projection (BTP) algorithm to smooth set of noisy data assumed lie on low-dimensional manifold. The points are smoothed by family local projections adaptively. BTP utilizes not only the location information point but also fitness space estimation. with better plays more important role in smoothing procedure. experimental results show that our is effective for noise reduction and preserves structure underlying

In both vehicle detection and tracking, the orientation of car will provide useful information to predict trajectory. this paper, we propose a method determine in still image. We train set Randomized Weber Local Descriptor (RWLD) based classifiers overcome problem. To make system robust fast, also tree structure organize pose estimator. evaluate our on database consisting more than 2000 images. The experimental results show that is effective. This estimator can be used for variety...

Vibration features of moving targets can reflect their detailed characteristics, which have important military and civil values. Coherent lidar is the preponderant method target detection, because its advantages such as high measurement accuracy ability long-distant non-destructive measurement, appropriate for detecting vibration information through remote sensing. Traditional analysis target’s always contained only one motion mode, could not real complex target. This paper proposed a novel...

As an important part of clinical medicine, the content and process standardized residents training radiology has its own characteristics. In this paper, assessment procedures for skills in Liaoning Province, 2019, were retrospectively analyzed, including examiner settings, specific testing mode, contents examination, analysis results, order to provide more reasonable recommendations future assessments. Key words: Radiology; Standardized training; Clinical skills; Assessment