Radar overcomes the shortcomings of laser, stereovision, and sonar because it can operate successfully in dusty, foggy, blizzard-blinding, and poorly lit scenarios. This paper presents a novel method for ground and obstacle segmentation based on radar sensing. The algorithm operates directly in the sensor frame, without the need for a separate synchronised navigation source, calibration parameters describing the location of the radar in the vehicle frame, or the geometric restrictions made in the previous main method in the field. Experimental results are presented in various urban scenarios to validate this approach, showing its potential applicability for advanced driving assistance systems and autonomous vehicle operations.
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http://dx.doi.org/10.3390/s150614661 | DOI Listing |
Sci Rep
December 2024
Department of Science Education, Kangwon National University, 1 Gangwondaehak-gil, Chuncheon-si, 24341, Gangwon-do, Republic of Korea.
The eruption in Fagradalsfjall Volcano, located in Reykjanes Peninsula, Iceland, from several centuries' dormant states, occurred for the first time on March 19, 2021. Observations of Fagradalsfjall Volcano were conducted in 2021, and the eruption period lasted for six months until 18 September 2021. Six days pair of interferograms were generated from ninety synthetic aperture radar (SAR) data.
View Article and Find Full Text PDFVital signs such as heart rate (HR) and respiration rate (RR) are essential physiological parameters that are routinely used to monitor human health and bodily functions. They can be continuously monitored through contact or contactless measurements performed in the home or a hospital. In this study, a contactless Doppler radar W-band sensing system was used for short-range, contactless vital sign estimation.
View Article and Find Full Text PDFJ Exp Bot
December 2024
Plant & Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
Agricultural intensification coupled with changing climate are causing soils to become increasingly vulnerable to stresses such as drought, soil erosion, and compaction. The mechanisms by which roots detect and respond to soil stresses remain poorly understood. Recent breakthroughs show that roots release volatile and soluble hormone signals into the surrounding soil, then monitor their levels to sense soil stresses.
View Article and Find Full Text PDFBMC Health Serv Res
December 2024
Department of Learning Health Sciences, School of Medicine, University of Michigan, Ann Arbor, MI, USA.
Background: Black men are more likely to be diagnosed with type 2 diabetes (T2D) compared to non-Hispanic White men, especially those over 55 years of age. Although there is ample evidence around the efficacy of peer-led diabetes self-management and support (PLDSMS) programs in improving diabetes health outcomes, Black men living with T2D experience several barriers to meaningful participation in peer-led programs and program developers face barriers to implementation. This qualitative study aimed to identify perspectives from collaborators on barriers and facilitators that impact the implementation of a PLDSMS intervention for older Black men with T2D.
View Article and Find Full Text PDFNeotrop Entomol
December 2024
National Authority for Remote Sensing and Space Sciences (NARSS), Cairo, Egypt.
Apis florea bees were recently identified in Egypt, marking the second occurrence of this species on the African continent. The objective of this study was to track the distribution of A. florea in Egypt and evaluate its potential for invasive behaviour.
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