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CAS IR Grid
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长春光学精密机械与物... [2]
武汉物理与数学研究所 [2]
计算技术研究所 [1]
合肥物质科学研究院 [1]
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OAI收割 [6]
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期刊论文 [4]
会议论文 [2]
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Gradient-Aligned convolution neural network
期刊论文
OAI收割
PATTERN RECOGNITION, 2022, 卷号: 122, 页码: 10
作者:
Hao, You
;
Hu, Ping
;
Li, Shirui
;
Udupa, Jayaram K.
;
Tong, Yubing
  |  
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2021/12/01
Gradient alignment
Rotation equivariant convolution
Rotation invariant neural network
Global and Local Oriented Edge Magnitude Patterns for Texture Classification
期刊论文
OAI收割
INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE, 2017, 卷号: 31, 期号: 3, 页码: 1-13
作者:
Dong, Jun
;
Yuan, Xue
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2018/07/04
Texture Classification
Local Binary Pattern
Histogram Of Gradient
Rotation Invariant
Features extraction and matching of teeth image based on the SIFT algorithm (EI CONFERENCE)
会议论文
OAI收割
2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012, July 27, 2012 - July 29, 2012, Shenyang, China
作者:
Wang X.
;
Wang X.
;
Wang X.
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2013/03/25
Using of SIFT algorithm in the image of teeth model
can detect the features of the teeth image effectively. In this approach
first
search over all scales and image locations by using a difference-of-Gaussian function to identify potential interest points that are invariant to scale and orientation. Second
select keypoints based on measures of their stability and a detailed model is fit to determine location and scale at each candidate location. Third
assign one or more orientations to each keypoint location based on local image gradient directions. Last
measure the local image gradients at the selected scale in the region around each keypoint. And then use the KNN algorithm to match the features. Through lots of experiments and comparing with other feature extraction methods
this method can detect the features of the teeth model effectively
and offer some available parameters for 3D reconstruction of the teeth model. the authors.
Approach for detecting crowd panic behavior based on fluid kinematic features and entropy (EI CONFERENCE)
会议论文
OAI收割
International Workshop on Advanced Computational Intelligence and Intelligent Informatics, IWACIII 2011, November 19, 2011 - November 23, 2011, Suzhou, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
Crowd panic behavior detection is an important task in video analysis and event recognition
whose purpose is to detect when the panic behavior happened and alarming the abnormal event timely. In this paper
the crowd is regard as a fluid
and the crowd motion is described by four fluid kinematic features (divergence
vorticity
gradient tensor invariant and rotation tensor invariant). To discriminate the panic event from normal crowd behavior
an information entropy is calculated as a high level feature based on the fluid kinematic features. Experimental results show that the entropy raised dramatically once a panic event happened.
Mobius invariant gradient and little alpha-Bloch functions
期刊论文
OAI收割
ACTA MATHEMATICA SCIENTIA, 2002, 卷号: 22, 期号: 3, 页码: 295-301
作者:
Zhuo, WX
;
Ouyang, CH
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2015/12/03
invariant gradient
little alpha-Bloch function
vanishing q-Carleson measure
Some characterizations of alpha-Bloch spaces on the unit ball of C-n
期刊论文
OAI收割
ACTA MATHEMATICA SCIENTIA, 1997, 卷号: 17, 期号: 4, 页码: 471-477
作者:
Yang, WS
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2015/12/01
invariant gradient
alpha-Bloch
beta-Carleson measure