Results 31 to 40 of about 202,444 (290)
Approximate Initialization of Camera Sensor Networks [PDF]
, 2007 Camera sensor networks--wireless networks of low-power imaging sensors-have become popular recently for monitoring applications. In this paper, we argue that traditional vision-based techniques for calibrating cameras are not directly suitable for low-power sensors deployed in remote locations.
Kulkarni, P, Shenoy, P, Ganesan, D
openaire +1 more source
International Journal of Distributed Sensor Networks, 2012 Considering the high energy consumption of image acquisition, computation, and transmission in wireless multimedia sensor networks (WMSNs), two-tier network structure is usually used to lighten the energy consumption burden on camera sensors.
Wusheng Luo, Qin Lu, Jingjing Xiao
doaj +1 more source
Secure Chaotic Map Based Block Cryptosystem with Application to Camera Sensor Networks
Sensors, 2011 Recently, Wang et al. presented an efficient logistic map based block encryption system. The encryption system employs feedback ciphertext to achieve plaintext dependence of sub-keys.
Muhammad Khurram Khan +3 more
doaj +1 more source
EAGAN: Event‐based attention generative adversarial networks for optical flow and depth estimation
IET Computer Vision, 2022 Event camera is a new vision sensor that produces independent asynchronous responses to each pixel's change of illumination intensity. The unique principle of event camera has many advantages over traditional cameras, such as low latency, high temporal ...
Xiuhong Lin +4 more
doaj +1 more source
Energy Consumption Analysis of High Quality Multi-Tier Wireless Multimedia Sensor Network
IEEE Access, 2017 Video surveillance is one of the promising applications of the Internet of Things paradigm. We see heterogeneous deployment of sensor platforms in a multi-tier network architecture as a key enabler for energy optimization of battery powered high-quality ...
Tenager Mekonnen +3 more
doaj +1 more source
A sparsity-driven approach to multi-camera tracking in visual sensor networks [PDF]
, 2013 In this paper, a sparsity-driven approach is presented for multi-camera tracking in visual sensor networks (VSNs). VSNs consist of image sensors, embedded processors and wireless transceivers which are powered by batteries. Since the energy and bandwidth
Cetin, Mujdat +3 more
core +3 more sources
On full-view coverage in camera sensor networks [PDF]
2011 Proceedings IEEE INFOCOM, 2011 Camera sensors are different from traditional scalar sensors as different cameras from different positions can form distinct views of the object. However, traditional disk sensing model does not consider this intrinsic property of camera sensors. To this end, we propose a novel model called full-view coverage.
Yi Wang, Guohong Cao
openaire +1 more source
Synchronized High-Speed Vision Sensor Network for Expansion of Field of View
Sensors, 2018 We propose a 500-frames-per-second high-speed vision (HSV) sensor network that acquires frames at a timing that is precisely synchronized across the network.
Akihito Noda +3 more
doaj +1 more source
A Bio-Inspired Vision Sensor With Dual Operation and Readout Modes [PDF]
, 2016 This paper presents a novel event-based vision sensor with two operation modes: intensity mode and spatial contrast detection. They can be combined with two different readout approaches: pulse density modulation and time-to-first spike.
Carmona Galán, Ricardo +3 more
core +1 more source
Distributed Compressed Video Sensing in Camera Sensor Networks [PDF]
International Journal of Distributed Sensor Networks, 2012 With the booming of video devices ranging from low-power visual sensors to mobile phones, the video sequences captured by these simple devices must be compressed easily and reconstructed by relatively more powerful servers. In such scenarios, distributed compressed video sensing (DCVS), combining distributed video coding (DVC) and compressed sensing ...
Yu Liu, Xuqi Zhu, Lin Zhang, Sung Ho Cho
openaire +2 more sources