Results 61 to 70 of about 11,014,670 (216)
Relay-Assisted Technology in Optical Wireless Communications: A Survey
IEEE Access, 2020 When the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission.
Wenwen Liu +4 more
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What is the signal in signal detection? [PDF]
Perception & Psychophysics, 1974 This study concerns the nature of the stimulus represented along the decision axis in the yes/no auditory detection task. Two contrasting interpretations, absolute and difference representation of the stimulus, are tested by raising the carrier tone embedded within the background "noise" to the level of the signal, on occasional "catch" trials. Results
Ryder P., Pike R., Dalgleish L.
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EntropyImage stitching aims to synthesize a wider and more informative whole image, which has been widely used in various fields. This study focuses on improving the accuracy of image mosaic and proposes an image mosaic method based on local edge contour ...
Shaokang Ma +4 more
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Signal detection with spectrum windows
Heliyon, 2022 Spectrum sensing is needed in frequency agile cognitive radio systems, cognitive radar systems as well as in (cognitive) electronic warfare systems. This paper studies window based detectors where window shapes can be matched for the expected spectrum.
Saarnisaari Harri, Vartiainen Johanna
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Research on the perception method of tiny objects in low-light and wide-field video
Scientific ReportsAt present, many trackers exhibit commendable performance in well-illuminated scenarios but overlook target tracking in low-light environments. As night falls, the tracker's accuracy drops dramatically. Challenges such as high image resolution, intricate
Zhaodong Xie +3 more
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Dual Auto-Encoder Based Rating Prediction Recommendation Algorithm
IEEE Access, 2022 Collaborative filtering is the most widely used method in recommendation algorithms, but it still faces the serious problem of data sparsity. Traditional collaborative filtering uses matrix decomposition to learn the latent features of users and items ...
Gaowei Xin +3 more
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A Multi-Information Fusion Correlation Filters Tracker
IEEE Access, 2020 In recent years, trackers based on correlation filters have attracted more and more attention due to the impressive tracking accuracy and real-time performance.
Junnan Wang +4 more
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Remote Sensing, 2022 Compared with single-band remote sensing images, multispectral images can obtain information on the same target in different bands. By combining the characteristics of each band, we can obtain clearer enhanced images; therefore, we propose a ...
Weijie Chen +3 more
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Cortical membrane potential signature of optimal states for sensory signal detection
Neuron, 2015 The neural correlates of optimal states for signal detection task performance are largely unknown. One hypothesis holds that optimal states exhibit tonically depolarized cortical neurons with enhanced spiking activity, such as occur during movement.
M. McGinley, S. David, D. McCormick
semanticscholar +1 more source
AI for radiographic COVID-19 detection selects shortcuts over signal
Nature Machine Intelligence, 2020 Artificial intelligence (AI) researchers and radiologists have recently reported AI systems that accurately detect COVID-19 in chest radiographs. However, the robustness of these systems remains unclear.
A. DeGrave, Joseph D. Janizek, Su-In Lee
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