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CAS IR Grid
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长春光学精密机械与物... [4]
地理科学与资源研究所 [2]
金属研究所 [1]
地质与地球物理研究所 [1]
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OAI收割 [8]
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会议论文 [4]
期刊论文 [4]
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2022 [1]
2020 [2]
2019 [1]
2010 [2]
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Noise removal for semi-airborne data using wavelet threshold and singular value decomposition
期刊论文
OAI收割
JOURNAL OF APPLIED GEOPHYSICS, 2022, 卷号: 201, 页码: 11
作者:
Lv, Pengfei
;
Wu, Xin
;
Zhao, Yang
;
Chang, Jianghao
  |  
收藏
  |  
浏览/下载:64/0
  |  
提交时间:2022/07/18
Semi-airborne transient electromagnetic
method
Short-time sliding window
Singular spectrum decomposition
Wavelet threshold method
Noise processing
Competition between high-speed trains and air travel in China: From a spatial to spatiotemporal perspective
期刊论文
OAI收割
TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE, 2020, 卷号: 133, 页码: 62-78
作者:
Wang, Jiaoe
;
Huang, Jie
;
Jing, Yue
  |  
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2020/05/19
Inter-modal competition
High-speed rail
Air service
Time slot
Time window method
Competition between high-speed trains and air travel in China: From a spatial to spatiotemporal perspective
期刊论文
OAI收割
TRANSPORTATION RESEARCH PART A-POLICY AND PRACTICE, 2020, 卷号: 133, 页码: 62-78
作者:
Wang, Jiaoe
;
Huang, Jie
;
Jing, Yue
  |  
收藏
  |  
浏览/下载:47/0
  |  
提交时间:2020/05/19
Inter-modal competition
High-speed rail
Air service
Time slot
Time window method
Load-Balancing and QoS Based Dynamic Resource Allocation Method for Smart Gird Fiber-Wireless Networks
期刊论文
OAI收割
CHINESE JOURNAL OF ELECTRONICS, 2019, 卷号: 28, 期号: 6, 页码: 1234-1243
作者:
Xu Siya
;
Li Peng
;
Qi Feng
;
Guo Shaoyong
;
Zhou Guiping
  |  
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2021/02/02
optical fibre networks
quality of service
radio access networks
radiofrequency interference
resource allocation
smart power grids
virtualisation
wireless channels
realtime resource consumption
time-window based substrate network resource update mechanism
smart gird communication services
specific QoS requirements
resource utilization
Fiber-wireless access networks
real-time network resource allocation
smart gird Fiber-wireless networks
dynamic resource allocation method
unbalanced resource consumption
load-balancing based resource allocation mechanism
QoS-based Virtual network request sorting mechanism
allocation algorithm
resource status
substrate networks
Load-balancing
Quality of Service (QoS)
Smart grid communication networks
Fiber-wireless (Fi-Wi) networks
Resource allocation
Sort optimization algorithm of median filtering based on FPGA (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Machine Vision and Human-Machine Interface, MVHI 2010, April 24, 2010 - April 25, 2010, Kaifeng, China
作者:
Li S.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
The traditional sorting algorithm of median filtering is optimized according to the hardware structure features of FPGA. FPGA is used to acquire the data parallelly for comparing the data of the same column in the median filtering window. Comparing results shared by adjacent filter window are saved temporarily to match the new round of median filtering by using FPGA internal resources. This method can reduce the comparing times from current 21 down to 13
and improve the algorithm efficiency nearly 40%.The experimental results prove that the optimized algorithm can filter a 1K1K gray-level image in about 20ms
which ensure the proposed algorithm can be applied in the real-time image median filtering system. 2010 IEEE.
The study of mapping relation of aeroplane complex motion and image movement and compensation technique (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China
Wei Z.
;
Wang Y.-Y.
;
Xue W.-Q.
;
Dai M.
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2013/03/25
In order to solve the problem of image blurring due to the image motion which results from the aircraft's motion
attitude changes
and the relative motion of the camera and aircraft firstly
we install linear displacement transducer on the four shock absorbers. By analyzing the displacement values
the geometrical relationship between the camera and the aircraft is acquired
then relative motion amount between the object and the aircraft is obtained according to the motion and attitude changes. After that
making use of geometrical relationship
we can calculate the displacement variation of pixels within the camera exposure time. Thereafter
taking consider variable motion and non-linear motion as uniform motion in a straight line at the moment of imaging
then the model of the blurring image can be established according to the displacement variation of pixels within the camera exposure time
and fuzzy point spread function in the two-dimensional movement is built. By using Wiener filtering method with the optimal window
the image blurring is eliminated in aerial imaging system. Practice proved that this method can effectively eliminate the image blurring in the aerial imaging system. 2010 IEEE.
High-accuracy real-time automatic thresholding for centroid tracker (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wang Y.
;
Wang Y.
;
Wang Y.
;
Wang Y.
;
Zhang Y.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
Many of the video image trackers today use the centroid as the tracking point. In engineering
we can get several key pairs of peaks which can include the target and the background around it and use the method of Otsu to get intensity thresholds from them. According to the thresholds
it give a great help for us to get a glancing size
a target's centroid is computed from a binary image to reduce the processing time. Hence thresholding of gray level image to binary image is a decisive step in centroid tracking. How to choose the feat thresholds in clutter is still an intractability problem unsolved today. This paper introduces a high-accuracy real-time automatic thresholding method for centroid tracker. It works well for variety types of target tracking in clutter. The core of this method is to get the entire information contained in the histogram
we can gain the binary image and get the centroid from it. To track the target
so that we can compare the size of the object in the current frame with the former. If the change is little
such as the number of the peaks
the paper also suggests subjoining an eyeshot-window
we consider the object has been tracked well. Otherwise
their height
just like our eyes focus on a target
if the change is bigger than usual
position and other properties in the histogram. Combine with this histogram analysis
we will not miss it unless it is out of our eyeshot
we should analyze the inflection in the histogram to find out what happened to the object. In general
the impression will help us to extract the target in clutter and track it and we will wait its emergence since it has been covered. To obtain the impression
what we have to do is turning the analysis into codes for the tracker to determine a feat threshold. The paper will show the steps in detail. The paper also discusses the hardware architecture which can meet the speed requirement.
the paper offers a idea comes from the method of Snakes
The signal extraction of fetal heart rate based on wavelet transform and BP neural network (EI CONFERENCE)
会议论文
OAI收割
Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, November 29, 2004 - December 1, 2004, Singapore, Singapore
Hong Y. X.
;
Cheng Z. B.
;
Dai F. H.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2013/03/25
This paper briefly introduces the collection and recognition of bio-medical signals
the other threading is analyzing data. Using the method
designs the method to collect FM signals. A detailed discussion on the system hardware
it is broaden to analyze the signal in real-time. Wavelet transform to remove the main interference in the FM and by adding time-window to recognize with BP network
structure and functions is also given. Under LabWindows/CVI
Finally the results of collecting signals and BP networks are discussed.8 pregnant women's signals of FM were collected successfully by using the sensor. The correctness rate of BP network recognition is about 83.3% by using the above measure.
the hardware and the driver do compatible
the hardware equipment work properly actively. The paper adopts multi threading technology for real-time analysis and makes use of latency time of CPU effectively
expedites program reflect speed
improves the program to perform efficiency. One threading is collecting data