Results 21 to 30 of about 3,801,030 (293)

Second-Order Semi-Global Stereo Matching Algorithm Based on Slanted Plane Iterative Optimization

open access: yesIEEE 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
doaj   +1 more source

Heart Rate Measurement Based on 3D Central Difference Convolution with Attention Mechanism

open access: yesSensors, 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
doaj   +1 more source

Efficient Spatiotemporal Attention Network for Remote Heart Rate Variability Analysis

open access: yesSensors, 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
doaj   +1 more source

Sensors and Sensor Networks [PDF]

open access: yesProceedings 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
openaire   +1 more source

A Chinese Grammatical Error Correction Method Based on Iterative Training and Sequence Tagging

open access: yesApplied 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
doaj   +1 more source

Networking paradigm for distributed sensor networks

open access: yesSecond 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
openaire   +2 more sources

Degradation of acephate using combined ultrasonic and ozonation method

open access: yesWater 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
doaj   +1 more source

Analysis and evaluation of distance-to-mean broadcast method for VANET

open access: yesJournal of King Saud University: Computer and Information Sciences, 2014
Multi-hop broadcast is a critical component in embedded communication systems. Some vehicular ad-hoc network (VANET) applications in particular use broadcast communications extensively.
Michael Slavik   +2 more
doaj   +1 more source

A Keyword Detection and Context Filtering Method for Document Level Relation Extraction

open access: yesApplied Sciences, 2022
Relation extraction (RE) is the core link of downstream tasks, such as information retrieval, question answering systems, and knowledge graphs. Most of the current mainstream RE technologies focus on the sentence-level corpus, which has great limitations
Hailan Kuang   +3 more
doaj   +1 more source

Multisensor Data Fusion for Water Quality Evaluation Using Dempster-Shafer Evidence Theory

open access: yesInternational Journal of Distributed Sensor Networks, 2013
A multisensor data fusion approach for water quality evaluation using Dempster-Shafer evidence theory is presented. To evaluate water quality, each sensor measurement is considered as a piece of evidence. Based on the water quality parameters measured by
Jian Zhou   +3 more
doaj   +1 more source

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