Results 101 to 110 of about 27,342 (288)

Automated camera ranking and selection using video content and scene context

open access: yes, 2012
PhDWhen observing a scene with multiple cameras, an important problem to solve is to automatically identify “what camera feed should be shown and when?” The answer to this question is of interest for a number of applications and scenarios ranging from ...
Daniyal, Fahad M., Daniyal, Fahad M
core  

Visible Light Communication Using Receivers of Camera Image Sensor and Solar Cell

open access: yesIEEE Photonics Journal, 2016
We propose an electronic label and sensor system using visible light communication (VLC). The downlink signal is transmitted by a white-light light-emitting diode (LED) lamp that can provide lighting, VLC, and energy harvesting for mobile devices.
Yang Liu   +5 more
doaj   +1 more source

Camera traps as sensor networks for monitoring animal communities

open access: yes2009 IEEE 34th Conference on Local Computer Networks, 2009
Studying animal movement and distribution is of critical importance to addressing environmental challenges including invasive species, infectious diseases, climate and land-use change. Motion sensitive camera traps offer a visual sensor to record the presence of a species at a location, recording their movement in the Eulerian sense.
Roland Kays   +6 more
openaire   +2 more sources

Shape Memory Microneedle to Prevent Risks of Reproductive Hormone Therapy by Switching Sustained to Burst Release Under a Single Transdermal Insertion

open access: yesAdvanced Functional Materials, EarlyView.
A shape‐memory microneedle system enables reproductive hormone therapy through a single transdermal insertion. The X‐shaped device sustains follicle‐stimulating hormone release for three days, and mild heating restores the O shape to trigger burst human chorionic gonadotropin release.
Sungwoo Cho   +8 more
wiley   +1 more source

Fast Sample Adaptive Offset Jointly Based on HOG Features and Depth Information for VVC in Visual Sensor Networks

open access: yes, 2020
Visual sensor networks (VSNs) can be widely used in multimedia, security monitoring, network camera, industrial detection, and other fields. However, with the development of new communication technology and the increase of the number of camera nodes in ...
Liuwei Tang, Tong Tang, Ruyan Wang
core   +1 more source

Coverage problem in camera-based sensor networks using the CUDA platform

open access: yesInternational Journal of Distributed Sensor Networks, 2017
Closed-circuit televisions serve as prevention against crime, and many studies for closed-circuit television deployment have been conducted. The closed-circuit television deployment in downtown is similar to solving coverage problem in wireless camera ...
Jae-Hyun Seo, Yourim Yoon, Yong-Hyuk Kim
doaj   +1 more source

Clusterization‐Triggered Emission from Cellulose‐Based Luminophores in Dilute Aqueous Solution through Imine Formation

open access: yesAdvanced Functional Materials, EarlyView.
Clusterization‐triggered emission is realized in dilute aqueous solution by introducing imine linkages into cellulose‐based luminophores. Imine functionalization creates O/N‐rich, hydrogen‐bonded clustered microenvironments that stabilize emissive states and restrict molecular motions. Luminescence is tunable by amine type and multiplicity.
Yazhou Su   +5 more
wiley   +1 more source

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

On partial-view coverage in wireless camera sensor networks

open access: yes, 2015
碩士無線感測網路(Wireless Sensor Networks,WSNs)至今已有許多發展與應用,漸漸融入在我們的生活中,其未來性是不可小覷的。在入侵偵測方面已經有許多相關的研究,但大多研究都只注重在是否偵測到入侵者,而非在辨別入侵者方面。無線攝影機感測網路(Wireless Camera Sensor Networks,WCSNs)中雖利用攝影機去追蹤目標物,但其卻不能保證必定能辨識到對方長相,由於目標物行走方向與攝影機照射角度的不同。此外攝影機的部署成本也遠大於多數的感測器 ...
劉子豪; Liu, Tzu-Hao
core  

Mechanical and Electrical Phenotype of hiPSC‐Cardiomyocytes on Fibronectin‐Based Hydrogels

open access: yesAdvanced Healthcare Materials, EarlyView.
We introduce fibronectin‐based PEG hydrogels with controlled rigidity to enable the culture of iPSC‐derived cardiomyocytes. These substrates offer an alternative to the current culture of these cells on fibronectin‐coated glass, providing enhanced structural and functional behavior. The system provides a more physiologically relevant platform to assess
Ana Da Silva Costa   +8 more
wiley   +1 more source

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