Results 101 to 110 of about 2,578,119 (290)

Automatic crowd analysis from very high resolution satellite images [PDF]

open access: yes, 2011
Recently automatic detection of people crowds from images became a very important research field, since it can provide crucial information especially for police departments and crisis management teams. Due to the importance of the topic, many researchers
Reinartz, Peter, Sirmacek, Beril
core  

Programmable Pneumatic Actuator System for a Bioinspired Artificial Colon

open access: yesAdvanced Materials Technologies, EarlyView.
A modular soft robotic colon simulator driven by programmable pneumatic actuation is developed to mimic physiological and pathological‐like motility patterns of the large intestine. Finite element–guided design and distributed control enable anatomically realistic deformation for peristalsis, segmentation, and mass movements, supporting capsule ...
Andrew Bickerdike   +6 more
wiley   +1 more source

Crowd Density Estimation Using Enhanced Multi-Column Convolutional Neural Network and Adaptive Collation

open access: yesIEEE Access
Accurate crowd density estimation is essential for public safety operations, urban and transportation design and multiple intelligent systems. The research presents an improved Multi-Column Convolutional Neural Network (MC-CNN) structure to predict crowd
Azamat Serek   +4 more
doaj   +1 more source

Crowd Abnormal Event Detection Based on Crowd Density

open access: yesJournal of Physics: Conference Series
Abstract This paper proposes a crowd abnormal event detection algorithm based on the change of crowd density. This method does not use the optical flow of the traditional model, thus the algorithm is fast. The algorithm first estimates the crowd density in the scene, then uses the change of crowd density as the feature representation of ...
Xuelin Liu, Fengchang Fei
openaire   +1 more source

Simulation of Crowd Problems for Computer Vision [PDF]

open access: yes, 2005
This work presents an approach for generating video evidence of dangerous situations in crowded scenes. The scenarios of interest are those with high safety risk such as blocked exit, collapse of a person in the crowd, and escape panic.
Fisher, Bob, Andrade, Ernesto
core  

Real-time crowd density estimation using images

open access: yes, 2005
This paper presents a technique for real-time crowd density estimation based on textures of crowd images. In this technique, the current image from a sequence of input images is classified into a crowd density class. Then, the classification is corrected
F. L. Drumond   +7 more
core   +1 more source

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

open access: yesAdvanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang   +7 more
wiley   +1 more source

Crowd density estimation using deep learning for Hajj pilgrimage video analytics. [PDF]

open access: yesF1000Res, 2021
Bhuiyan MR   +6 more
europepmc   +1 more source

Crowd-sourced cognitive map of Bundang.

open access: yes, 2019
Crowd-sourced cognitive map of Bundang.
Youngchul Kim (28900)   +1 more
core   +1 more source

Copper Electroplated TPMS Polymer Lattices for Lightweight Absorption Dominant Electromagnetic Interference Shielding

open access: yesAdvanced Materials Technologies, EarlyView.
Copper electroplating transforms lightweight 3D‐printed TPMS polymer lattices into effective electromagnetic shields. Topology, relative density, and conductive seed layer continuity govern copper penetration, electrical resistance, and attenuation. SEA consistently exceeds SER, while 35% RD Diamond lattice gives the best performance, reaching 48.72 dB
Aman Al Khatib   +6 more
wiley   +1 more source

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