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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
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长春光学精密机械与物... [5]
物理研究所 [1]
地理科学与资源研究所 [1]
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OAI收割 [8]
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会议论文 [5]
期刊论文 [3]
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Camera-based Basketball Scoring Detection Using Convolutional Neural Network
期刊论文
OAI收割
International Journal of Automation and Computing, 2021, 卷号: 18, 期号: 2, 页码: 266-276
作者:
Xu-Bo Fu
  |  
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2021/04/22
Computer vision
convolutional neural network (CCN)
frame difference
motion detection
object detection
real-time system
An Improved Cloud Detection Method for GF-4 Imagery
期刊论文
OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 9, 页码: 23
作者:
Lu, Ming
;
Li, Feng
;
Zhan, Bangcheng
;
Li, He
;
Yang, Xue
  |  
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2021/07/09
cloud detection
GF-4
real-time difference
remote sensing
Label-free high-throughput and real-time detections of protein interactions by oblique-incidence reflectivity difference method
期刊论文
OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2014, 卷号: 57, 期号: 4, 页码: 615
He, LP
;
Liu, S
;
Dai, J
;
Lu, HB
;
Jin, KJ
;
Yang, GZ
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2015/04/14
oblique-incidence reflectivity difference (OIRD)
label-free
real-time
high-throughput
A nonlinear image enhancement algorithm based on partial differential equations (EI CONFERENCE)
会议论文
OAI收割
2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China
Han X.
;
Jian Z.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
Image enhancement and image de-noising have being the important research contents of image academic and engineering field
and the partial differential equations have been widely applied to computer vision. The paper applies the thoughts of partial differential equations
puts forward a new improved method of image enhancement. This method can enhance not only the dark images but also the bright images
making the details hidden in the dark background and the bright background very clear. The application scope is wider
and the visual effect is better. This paper uses the finite difference method to discrete the partial differential equations
and combines with the heat equation. It calculates simple
runs fast
and provides a guarantee for real-time video image enhancement processing. 2010 IEEE.
Real-time matching algorithm of navigation image based on corner detection (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:
Zhang T.
收藏
  |  
浏览/下载:44/0
  |  
提交时间:2013/03/25
In order to meet requirement of real-time and high accuracy in image matching aided navigation
SSDA algorithm is used to match remote sensing image and template image coarsely
a fast and effective algorithm of remote sensing image matching based on corner detection is put forward. With the combination of rough and fine match
when the matching result is bigger than one to count absolute value sum of energy difference of characteristic point energy to realize fine match of remote sensing image and template image to locate the position of template image in remote sensing image accurately. Simulation experiment proves that the matching of a remote sensing image resolution of 1018*1530 and a template image resolution of 150*90 can be fulfilled within 2.392 second
wavelet transform is used to acquire low frequency component to realize image compression to decrease calculation work and increase matching speed. Harris corner detection algorithm is used to detect corner of remote sensing image and template image and energy of every corner is calculated
the algorithm is robust and effective
real time image navigation can be achieved. 2009 SPIE.
Compression of hyper-spectral images based on quadtree partitioning (EI CONFERENCE)
会议论文
OAI收割
2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009, August 8, 2009 - August 11, 2009, Beijing, China
作者:
Zhang W.
;
Zhang W.
收藏
  |  
浏览/下载:41/0
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提交时间:2013/03/25
The paper analyzes the characteristic features of hyper-spectral image and presents a compression of hyperspectral images based on quadtree partitioning. Quadtree partition is used to get the mean image of the whole image and the significant correlation of image can be decorrelated by subtract the mean image from original image. The difference image is compressed by DCT and encoded with arithmetic code. Experiment show the algorithm is simple and easy to use in real-time image compressing. 2009 IEEE.
Central hole effect on Whispering-Gallery-Mode of triangular lattice photonic crystal microcavity (EI CONFERENCE)
会议论文
OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者:
Zhang Y.
;
Wang L.
;
Wang L.
;
Wang L.
;
Wang Z.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
Whispering-Gallery-Mode (WGM) photonic crystal microcavity is a kind of photonic crystal application and can potentially be used for miniaturized photonic devices
such as thresholdless lasers. In this paper we study the WGM of photonic crystal microcavities focusing on the so called H2 cavities which are formed by removing seven air holes. The WGM in these large-size cavities has some advantages compared with single defect WGM in the view of real device applications. We further add a central air hole in the cavity region to analyze the effect on WGM in the microcavity by finite difference time domain (FDTD) and plane wave expansion (PWE). It is found that the tolerance of WGM is large enough for the fabrication of electrical injection structure. 2008 SPIE.
Displacement estimation by the phase-shiftings of fourier transform in present white noise (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wu Y.-H.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
Displacement estimation is a fundamental problem in Real-time video image processing. It can be typically approached by theories based on features in spatial domain. This paper presents an algorithm which improves the theory for estimating the moving object's displacement in spatial domain by its Fourier transform frequency spectrum. Because of the characters of Fourier transform
the result is based on all the features in the image. Utilizing shift theorem of Fourier transform and auto-registration
the algorithm employs the phase spectrum difference in polar coordinate of two frame images sequence with the moving target1
2. The method needn't transform frequency spectrum to spatial domain after calculation comparing with the traditional algorithm which has to search Direc peak
and it reduces processing time. Since the technique proposed uses all the image information
including all the white noise in the image especially
and it's hard to overcome the aliasing from noises
but the technique can be an effective way to analyze the result in little white noise by the different characters between high and low frequency bands. It can give the displacement of moving target within 1 pixel of accuracy. Experimental evidence of this performance is presented
and the mathematical reasons behind these characteristics are explained in depth. It is proved that the algorithm is fast and simple and can be used in image tracking and video image processing.