Design of high speed linear CMOS camera system based on GL0816 sensor

2019 ◽  
Vol 34 (1) ◽  
pp. 24-32
Author(s):  
张军亮 ZHANG Jun-liang ◽  
戚 涛 QI Tao ◽  
李 晖 LI Hui ◽  
乔 健 QIAO Jian
Keyword(s):  
2013 ◽  
Vol 333-335 ◽  
pp. 860-863
Author(s):  
Hua Jun Dong ◽  
Wen Liang Dong ◽  
Kai Kang ◽  
Dao Shun Wang

Vacuum circuit breaker is one of the major critical components that controls and protects the power system. The breaking capability of the vacuum switch directly affects the safety of the power system. However, the breaking capability of the vacuum switch is determined by the morphological characteristics of the vacuum arc images. In this paper, in order to research the variation of the vacuum arc, a high-speed CMOS camera system is used to collect the vacuum arc images within a short gap (7mm), the morphological characteristics of the vacuum arc images are extracted based on the digital image processing. At last, the variation of the arc is analyzed.


2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Sushil Raut ◽  
Kohei Shimasaki ◽  
Sanjay Singh ◽  
Takeshi Takaki ◽  
Idaku Ishii

AbstractIn this study, the novel approach of real-time video stabilization system using a high-frame-rate (HFR) jitter sensing device is demonstrated to realize the computationally efficient technique of digital video stabilization for high-resolution image sequences. This system consists of a high-speed camera to extract and track feature points in gray-level $$512\times 496$$512×496 image sequences at 1000 fps and a high-resolution CMOS camera to capture $$2048\times 2048$$2048×2048 image sequences considering their hybridization to achieve real-time stabilization. The high-speed camera functions as a real-time HFR jitter sensing device to measure an apparent jitter movement of the system by considering two ways of computational acceleration; (1) feature point extraction with a parallel processing circuit module of the Harris corner detection and (2) corresponding hundreds of feature points at the current frame to those in the neighbor ranges at the previous frame on the assumption of small frame-to-frame displacement in high-speed vision. The proposed hybrid-camera system can digitally stabilize the $$2048\times 2048$$2048×2048 images captured with the high-resolution CMOS camera by compensating the sensed jitter-displacement in real time for displaying to human eyes on a computer display. The experiments were conducted to demonstrate the effectiveness of hybrid-camera-based digital video stabilization such as (a) verification when the hybrid-camera system in the pan direction in front of a checkered pattern, (b) stabilization in video shooting a photographic pattern when the system moved with a mixed-displacement motion of jitter and constant low-velocity in the pan direction, and (c) stabilization in video shooting a real-world outdoor scene when an operator holding hand-held hybrid-camera module while walking on the stairs.


Author(s):  
J.E. Santos Conde ◽  
M. Hillebrand ◽  
A. Teuner ◽  
N. Stevanovic ◽  
U. Iurgel ◽  
...  
Keyword(s):  

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2098
Author(s):  
Tomas Kalous ◽  
Pavel Holec ◽  
Jakub Erben ◽  
Martin Bilek ◽  
Ondrej Batka ◽  
...  

The electrospinning process that produces fine nanofibrous materials have a major disadvantage in the area of productivity. However, alternating current (AC) electrospinning might help to solve the problem via the modification of high voltage signal. The aforementioned productivity aspect can be observed via a camera system that focuses on the jet creation area and that measures the average lifespan. The paper describes the optimization of polyamide 6 (PA 6) solutions and demonstrates the change in the behavior of the process following the addition of a minor dose of oxoacid. This addition served to convert the previously unspinnable (using AC) solution to a high-quality electrospinning solution. The visual analysis of the AC electrospinning of polymeric solutions using a high-speed camera and a programmable power source was chosen as the method for the evaluation of the quality of the process. The solutions were exposed to high voltage applying two types of AC signal, i.e., the sine wave and the step change. All the recordings presented in the paper contained two sets of data: firstly, camera recordings that showed the visual expression of electrospinning and, secondly, signal recordings that provided information on the data position in the signal function.


2012 ◽  
Vol 460 ◽  
pp. 266-270
Author(s):  
Xing Wu Sun ◽  
Yu Chen ◽  
Ai Fei Wang

According to the shortcomings of large volume and high cost about the plate recognition system, an embedded plate recognition system is developed based on the ARM11 processor at lower costs. Taking the embedded Linux system as the software development platform, the system uses graphical user interface to operate and control the machine. Using CMOS camera system as image acquisition device, the system adopts HSV algorithm to realize the image classification on the platform of the embedded plate recognition system. The experimental results show that the embedded system runs stably, can realize the plate classification by color, and has the advantages of small size, low power consumption, convenience for using and so on. The embedded system provides a new thought for plate recognition.


2012 ◽  
Vol 15 (3) ◽  
pp. 193-195 ◽  
Author(s):  
K. Hashimoto ◽  
A. Hori ◽  
T. Hara ◽  
S. Onogi ◽  
H. Mouri

2011 ◽  
Vol 19 (11) ◽  
pp. 2791-2799 ◽  
Author(s):  
余达 YU Da ◽  
郭永飞 GUO Yong-fei ◽  
周怀得 ZHOU Huai-de ◽  
武星星 WU Xing-xing ◽  
李广泽 LI Guang-Ze ◽  
...  

2019 ◽  
Vol 30 (7) ◽  
pp. 075403 ◽  
Author(s):  
Daniel J Duke ◽  
Thomas Knast ◽  
Bhavraj Thethy ◽  
Luis Gisler ◽  
Daniel Edgington-Mitchell
Keyword(s):  
Low Cost ◽  

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