Results 11 to 20 of about 135,244 (265)
Design and characteristic analysis of hybrid OFD–LFM–PC waveforms in the MIMO radar
The Journal of Engineering, 2019 In this study, a new set of hybrid orthogonal frequency division–linear frequency modulation–phase coded (OFD–LFM–PC) waveforms are proposed to improve the detection performance of multiple-input-multiple-output (MIMO) radars.
Sheng Hong +4 more
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Sensors and Sensor Networks [PDF]
Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC), 2004 Recently, sensing technology has been experiencing quantum leaps in price reduction and in performance. This has occurred because of simultaneous advances in new materials, cheap computing power, micro to nano-level integrated fabrication, wireless networking, and sophisticated information technology. At the same time, the pace of business and the pace
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Human Pose Estimation by Exploiting Spatial and Temporal Constraints in Body-Part Configurations
IEEE Access, 2017 We present an algorithm for estimating a sequence of articulated upper-body human pose in unconstrained videos. Most previous work often fails to locate forearms in those video scenes suffering from illumination varieties, background clutter, camera ...
Qingwu Li +4 more
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An Entity Relation Extraction Method Based on Dynamic Context and Multi-Feature Fusion
Applied Sciences, 2022 Dynamic context selector, a kind of mask idea, will divide the matrix into some regions, selecting the information of region as the input of model dynamically.
Xiaolin Ma +3 more
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Second-Order Semi-Global Stereo Matching Algorithm Based on Slanted Plane Iterative Optimization
IEEE Access, 2018 Stereo matching is a difficult and challenging task due to many uncontrollable factors that affect the results. These factors include the non-ideal radiometric conditions and the presence of weak-textured regions.
Jinyan Ni, Qingwu Li, Yan Liu, Yan Zhou
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Networking paradigm for distributed sensor networks
Second IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2003. Proceedings, 2004 An increasing number of distributed sensor networks are being deployed in a wide spectrum of scenarios for both military and civilian applications. The design of such systems requires the integration of many methods for solving various problems ranging from sensor deployment, through data communication, information fusion to environmental inference and
S. Sitharama Iyengar +2 more
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Heart Rate Measurement Based on 3D Central Difference Convolution with Attention Mechanism
Sensors, 2022 Remote photoplethysmography (rPPG) is a video-based non-contact heart rate measurement technology. It is a fact that most existing rPPG methods fail to deal with the spatiotemporal features of the video, which is significant for the extraction of the ...
Xinhua Liu +3 more
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Efficient Spatiotemporal Attention Network for Remote Heart Rate Variability Analysis
Sensors, 2022 Studies have shown that ordinary color cameras can detect the subtle color changes of the skin caused by the heartbeat cycle. Therefore, cameras can be used to remotely monitor the pulse in a non-contact manner.
Hailan Kuang +3 more
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Degradation of acephate using combined ultrasonic and ozonation method
Water Science and Engineering, 2015 The degradation of acephate in aqueous solutions was investigated with the ultrasonic and ozonation methods, as well as a combination of both. An experimental facility was designed and operation parameters such as the ultrasonic power, temperature, and ...
Bin Wang +8 more
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A Chinese Grammatical Error Correction Method Based on Iterative Training and Sequence Tagging
Applied Sciences, 2022 Chinese grammatical error correction (GEC) is under continuous development and improvement, and this is a challenging task in the field of natural language processing due to the high complexity and flexibility of Chinese grammar.
Hailan Kuang +3 more
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