keyword
MENU ▼
Read by QxMD icon Read
search

Cluttering

keyword
https://www.readbyqxmd.com/read/28811888/performance-test-and-verification-of-an-off-the-shelf-automated-avian-radar-tracking-system
#1
Roel May, Yngve Steinheim, Pål Kvaløy, Roald Vang, Frank Hanssen
Microwave radar is an important tool for observation of birds in flight and represents a tremendous increase in observation capability in terms of amount of surveillance space that can be covered at relatively low cost. Based on off-the-shelf radar hardware, automated radar tracking systems have been developed for monitoring avian movements. However, radar used as an observation instrument in biological research has its limitations that are important to be aware of when analyzing recorded radar data. This article describes a method for exploring the detection capabilities of a dedicated short-range avian radar system used inside the operational Smøla wind-power plant...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28811585/age-related-changes-in-crowding-and-reading-speed
#2
Rong Liu, Bhavika N Patel, MiYoung Kwon
Crowding, the inability to recognize objects in clutter, is known to play a role in developmental changes in reading speed. Here, we investigated whether crowding also plays a role in age-related changes in reading speed. We recruited 18 young (mean age: 22.6 ± 3.5; range: 18~31) and 21 older adults (mean age: 58.2 ± 7.0; range: 50~73) with normal vision. Reading speed was measured with short blocks of text. The degree of crowding was determined by measuring crowding zone (the distance between a target and flankers required to yield a criterion recognition accuracy) and the size of the visual span (an uncrowded window in the visual field within which letters can be recognizable reliably)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809785/path-planning-for-non-circular-non-holonomic-robots-in-highly-cluttered-environments
#3
Ricardo Samaniego, Joaquin Lopez, Fernando Vazquez
This paper presents an algorithm for finding a solution to the problem of planning a feasible path for a slender autonomous mobile robot in a large and cluttered environment. The presented approach is based on performing a graph search on a kinodynamic-feasible lattice state space of high resolution; however, the technique is applicable to many search algorithms. With the purpose of allowing the algorithm to consider paths that take the robot through narrow passes and close to obstacles, high resolutions are used for the lattice space and the control set...
August 15, 2017: Sensors
https://www.readbyqxmd.com/read/28796608/best-buddies-similarity-robust-template-matching-using-mutual-nearest-neighbors
#4
Shaul Oron, Tali Dekel, Tianfan Xue, William T Freeman, Shai Avidan
We propose a novel method for template matching in unconstrained environments. Its essence is the Best-Buddies Similarity (BBS), a useful, robust, and parameter-free similarity measure between two sets of points. BBS is based on counting the number of Best-Buddies Pairs (BBPs)-pairs of points in source and target sets, where each point is the nearest neighbor of the other. BBS has several key features that make it robust against complex geometric deformations and high levels of outliers, such as those arising from background clutter and occlusions...
August 9, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28792895/cross-domain-shoe-retrieval-with-a-semantic-hierarchy-of-attribute-classification-network
#5
Huijing Zhan, Boxin Shi, Alex C Kot
Cross-domain shoe image retrieval is a challenging problem, because the query photo from the street domain (daily life scenario) and the reference photo in the online domain (online shop images) have significant visual differences due to the viewpoint and scale variation, self-occlusion, and cluttered background. This paper proposes the Semantic Hierarchy Of attributE Convolutional Neural Network (SHOE-CNN) with a three-level feature representation for discriminative shoe feature expression and efficient retrieval...
August 4, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28758970/practical-considerations-before-installing-ground-based-geodetic-infrastructure-for-integrated-insar-and-cgnss-monitoring-of-vertical-land-motion
#6
Amy L Parker, Will E Featherstone, Nigel T Penna, Mick S Filmer, Matt C Garthwaite
Continuously operating Global Navigation Satellite Systems (cGNSS) can be used to convert relative values of vertical land motion (VLM) derived from Interferometric Synthetic Aperture Radar (InSAR) to absolute values in a global or regional reference frame. Artificial trihedral corner reflectors (CRs) provide high-intensity and temporally stable reflections in SAR time series imagery, more so than naturally occurring permanent scatterers. Therefore, it is logical to co-locate CRs with cGNSS as ground-based geodetic infrastructure for the integrated monitoring of VLM...
July 31, 2017: Sensors
https://www.readbyqxmd.com/read/28755269/automatic-torso-detection-in-images-of-preterm-infants
#7
Meharmeet Kaur, Andrew P Marshall, Caillin Eastwood-Sutherland, Brian P Salmon, Peter A Dargaville, Timothy J Gale
Imaging systems have applications in patient respiratory monitoring but with limited application in neonatal intensive care units (NICU). In this paper we propose an algorithm to automatically detect the torso in an image of a preterm infant during non-invasive respiratory monitoring. The algorithm uses normalised cut to segment each image into clusters, followed by two fuzzy inference systems to detect the nappy and torso. Our dataset comprised overhead images of 16 preterm infants in a NICU, with uncontrolled illumination, and encompassing variations in poses, presence of medical equipment and clutter in the background...
September 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28747883/obstacle-avoidance-and-target-acquisition-for-robot-navigation-using-a-mixed-signal-analog-digital-neuromorphic-processing-system
#8
Moritz B Milde, Hermann Blum, Alexander Dietmüller, Dora Sumislawska, Jörg Conradt, Giacomo Indiveri, Yulia Sandamirskaya
Neuromorphic hardware emulates dynamics of biological neural networks in electronic circuits offering an alternative to the von Neumann computing architecture that is low-power, inherently parallel, and event-driven. This hardware allows to implement neural-network based robotic controllers in an energy-efficient way with low latency, but requires solving the problem of device variability, characteristic for analog electronic circuits. In this work, we interfaced a mixed-signal analog-digital neuromorphic processor ROLLS to a neuromorphic dynamic vision sensor (DVS) mounted on a robotic vehicle and developed an autonomous neuromorphic agent that is able to perform neurally inspired obstacle-avoidance and target acquisition...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28742033/the-impact-of-model-based-clutter-suppression-on-cluttered-aberrated-wavefronts
#9
Kazuyuki Dei, Brett Byram
Recent studies reveal that both phase aberration and reverberation play a major role in degrading ultrasound image quality. We previously developed an algorithm for suppressing clutter, but we have not yet tested it in the context of aberrated wavefronts. In this study, we evaluate our previously reported algorithm, called aperture domain model image reconstruction (ADMIRE), in the presence of phase aberration and in the presence of multipath scattering and phase aberration. We use simulations to investigate phase aberration corruption and correction in the presence of reverberation...
July 20, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28740505/object-extraction-in-cluttered-environments-via-a-p300-based-ifce
#10
Xiaoqian Mao, Wei Li, Huidong He, Bin Xian, Ming Zeng, Huihui Zhou, Linwei Niu, Genshe Chen
One of the fundamental issues for robot navigation is to extract an object of interest from an image. The biggest challenges for extracting objects of interest are how to use a machine to model the objects in which a human is interested and extract them quickly and reliably under varying illumination conditions. This article develops a novel method for segmenting an object of interest in a cluttered environment by combining a P300-based brain computer interface (BCI) and an improved fuzzy color extractor (IFCE)...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28734491/an-accent-modification-program
#11
Wyona M Freysteinson, Joshua D Adams, Sandra Cesario, Hanna A Belay, Paula Clutter, Jinlan Du, Betty M Duson, Marilyn Goff, Lenora McWilliams, Rachelle-Ann P Nurse, Zoheb Allam
No abstract text is available yet for this article.
July 2017: Journal of Professional Nursing: Official Journal of the American Association of Colleges of Nursing
https://www.readbyqxmd.com/read/28731793/phylogeny-traits-and-biodiversity-of-a-neotropical-bat-assemblage-close-relatives-show-similar-responses-to-local-deforestation
#12
Hannah K Frank, Luke O Frishkoff, Chase D Mendenhall, Gretchen C Daily, Elizabeth A Hadly
If species' evolutionary pasts predetermine their responses to evolutionarily novel stressors, then phylogeny could predict species survival in an increasingly human-dominated world. To understand the role of phylogenetic relatedness in structuring responses to rapid environmental change, we focused on assemblages of Neotropical bats, an ecologically diverse and functionally important group. We examined how taxonomic and phylogenetic diversity shift between tropical forest and farmland. We then explored the importance of evolutionary history by ascertaining whether close relatives share similar responses to environmental change and which species traits might mediate these trends...
August 2017: American Naturalist
https://www.readbyqxmd.com/read/28712912/multixplore-visual-exploration-platform-for-multimodal-neuroimaging-data
#13
Saeed M Bakhshmand, Ali R Khan, Sandrine de Ribaupierre, Roy Eagleson
BACKGROUND: Construction of brain functional and structural networks by neuroimaging methods facilitates inter-modal studies. These type of studies often demand exploration tools to carry out functional-structural discoveries and answer questions regarding the anatomical basis of brain networks. NEW METHOD: This paper describes the design and development of a software module for interactive visualization and exploration of dual-modal brain networks. Our objective was to equip the user with a research tool to investigate brain connectivity matrices while visualizing relevant anatomical landmarks within a 3D volumetric view...
July 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28704206/an-autonomous-robot-inspired-by-insect-neurophysiology-pursues-moving-features-in-natural-environments
#14
Zahra M Bagheri, Benjamin S Cazzolato, Steven Grainger, David C O'Carroll, Steven D Wiederman
OBJECTIVE: Many computer vision and robotic applications require the implementation of robust and efficient target-tracking algorithms on a moving platform. However, deployment of a real-time system is challenging, even with the computational power of modern hardware. Lightweight and low-powered flying insects, such as dragonflies, track prey or conspecifics within cluttered natural environments, illustrating an efficient biological solution to the target-tracking problem. APPROACH: We used our recent recordings from 'small target motion detector' neurons in the dragonfly brain to inspire the development of a closed-loop target detection and tracking algorithm...
July 13, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28701963/hoarding-disorder-a-case-report
#15
Daniela Vilaverde, Jorge Gonçalves, Pedro Morgado
Hoarding disorder is characterized by a persistent difficulty discarding items, the desire to save items to avoid negative feelings associated with discarding them, significant accumulation of possessions that clutter active living areas and significant distress or impairment in areas of functioning. We present a case of a 52-year-old married man who was referred to the psychiatry department for collecting various objects that were deposited unorganized in the patient's house. He reported to get anxious when someone else discarded some of these items...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28700367/open-adoption-placement-by-birth-mothers-in-their-twenties
#16
Lynn B Clutter
PURPOSE: The purpose of this study was to summarize birth mothers' descriptions of unplanned pregnancy experienced in their twenties and how open adoption influenced their lives. STUDY DESIGN AND METHODS: Naturalistic inquiry was used with purposive sampling from one agency and telephone interviews of women who experienced unplanned pregnancy in their twenties and relinquishment through open adoption. Recorded, transcribed, and deidentified interviews were analyzed for qualitative themes...
July 11, 2017: MCN. the American Journal of Maternal Child Nursing
https://www.readbyqxmd.com/read/28694337/targeted-memory-reactivation-during-sleep-adaptively-promotes-the-strengthening-or-weakening-of-overlapping-memories
#17
J P Oyarzún, J Morís, D Luque, R de Diego-Balaguer, L Fuentemilla
System memory consolidation is conceptualized as an active process whereby newly encoded memory representations are strengthened through selective memory reactivation during sleep. However, our learning experience is highly overlapping in content (i.e., shares common elements), and memories of these events are organized in an intricate network of overlapping associated events. It remains to be explored whether and how selective memory reactivation during sleep has an impact on these overlapping memories acquired during awake time...
July 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28686560/-hoarding-disorder-in-dsm-5-clinical-description-and-cognitive-approach
#18
L Kalogeraki, I Michopoulos
Hoarding disorder is characterized by difficulty discarding or parting with possessions regardless their actual value as well as, in most cases, persistent acquisition of objects. Possessions are accumulated in large numbers that fill up and clutter active living space to the extent that its intended use is no longer possible resulting to significant functional impairment and/or distress. Saving and difficulty discarding appear to be associated to subjective beliefs about the instrumental, sentimental or intrinsic value of objects...
April 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/28686198/towards-a-cognitive-radar-canada-s-third-generation-high-frequency-surface-wave-radar-hfswr-for-surveillance-of-the-200-nautical-mile-exclusive-economic-zone
#19
Anthony Ponsford, Rick McKerracher, Zhen Ding, Peter Moo, Derek Yee
Canada's third-generation HFSWR forms the foundation of a maritime domain awareness system that provides enforcement agencies with real-time persistent surveillance out to and beyond the 200 nautical mile exclusive economic zone (EEZ). Cognitive sense-and-adapt technology and dynamic spectrum management ensures robust and resilient operation in the highly congested High Frequency (HF) band. Dynamic spectrum access enables the system to simultaneously operate on two frequencies on a non-interference and non-protected basis, without impacting other spectrum users...
July 7, 2017: Sensors
https://www.readbyqxmd.com/read/28679795/species-specific-differences-in-the-fine-structure-of-learning-walk-elements-in-cataglyphis-ants
#20
Pauline N Fleischmann, Robin Grob, Rüdiger Wehner, Wolfgang Rössler
Cataglyphis desert ants are famous navigators. Like all central place foragers, they are confronted with the challenge to return home, i.e. relocate an inconspicuous nest entrance in the ground, after their extensive foraging trips. When leaving the underground nest for the first time, desert ants perform a striking behavior, so-called learning walks that are well structured. However, it is still unclear how the ants initially acquire the information needed for sky- and landmark-based navigation, in particular how they calibrate their compass system at the beginning of their foraging careers...
July 1, 2017: Journal of Experimental Biology
keyword
keyword
41690
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"