中国科学院机构知识库网格系统: 检索

Extraction of Multiple Electrical Parameters From IP-Affected Transient Electromagnetic Data Based on LSTM-ResNet 期刊论文 OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2023, 卷号: 61, 页码: 14
作者: Zhang, Shun; Zhou, Nannan

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收藏 | 浏览/下载：17/0 | 提交时间：2023/12/29

Conductivity Electric fields IP networks Distortion measurement Neural networks Magnetic fields Data mining Chargeability induced polarization (IP) long short-term memory-residual network (LSTM-ResNet) sign reversal transient electromagnetic (TEM) method

Gated Recurrent Fusion With Joint Training Framework for Robust End-to-End Speech Recognition 期刊论文 OAI收割
IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 2021, 期号: 29, 页码: 198-209
作者: Fan, Cunhang; Yi, Jiangyan; Tao, Jianhua; Tian, Zhengkun; Liu, Bin

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收藏 | 浏览/下载：49/0 | 提交时间：2021/03/08

Speech enhancement Speech recognition Training Noise measurement Logic gates Acoustic distortion Task analysis Gated recurrent fusion robust end-to-end speech recognition speech distortion speech enhancement speech transformer

Image Retargetability 期刊论文 OAI收割
IEEE TRANSACTIONS ON MULTIMEDIA, 2020, 卷号: 22, 期号: 3, 页码: 641-654
作者: Tang, Fan; Dong, Weiming; Meng, Yiping; Ma, Chongyang; Wu, Fuzhang

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收藏 | 浏览/下载：33/0 | 提交时间：2020/06/02

Visualization Task analysis Distortion Measurement Image resolution Convolutional neural networks Semantics Image retargetability visual attributes multi-task learning deep convolutional neural network

A NSGA-II-Based Calibration Algorithm for Underwater Binocular Vision Measurement System 期刊论文 OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2020, 卷号: 69, 期号: 3, 页码: 794-803
作者: Kong, Shihan; Fang, Xi; Chen, Xingyu; Wu, Zhengxing; Yu, Junzhi

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收藏 | 浏览/下载：55/0 | 提交时间：2020/04/07

Calibration Cameras Mathematical model Optical refraction Absorption Nonlinear optics Optical distortion Akin triangular multiobjective optimization refractive camera model underwater calibration underwater measurement

Misalignment Measurement of Orbital Angular Momentum Signal Based on Spectrum Analysis and Image Processing 期刊论文 OAI收割
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2020, 卷号: 68, 期号: 1, 页码: 521-526
作者: Gao, Xinlu; Song, Xiyao; Zheng, Zhennan; Xie, Mutong; Huang, Shanguo

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收藏 | 浏览/下载：26/0 | 提交时间：2020/12/10

Measurement by laser beam Laser beams Antenna measurements Extraterrestrial measurements Image processing Distortion measurement Spectral analysis Antenna radiation patterns dipole radiation image processing misalignment measurement orbital angular momentum (OAM)

A New Calibration Method of Line Scan Camera for High-Precision Two-Dimensional Measurement 会议论文 OAI收割
August 20-24, 2018, Munich, Germany
作者: Jiabin, Zhang; Zhengtao, Zhang; Fei, Shen; Feng, Zhang; Hu, Su

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收藏 | 浏览/下载：13/0 | 提交时间：2021/06/17

line scan camera camera calibration distortion correction visual measurement planar measurement

Speech signal enhancement through wavelet domain MMSE filtering (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Fenghua Z.; Le Y.; Jian W.; Qiang S.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

A new speech enhancement system that combine robust signal enhancement and minimum signal distortion is proposed in this paper. The proposed method introduces frequency depended parametric MMSE filtering techniques that involve wavelet packets. Voice activity detection (VAD) is used to further distinguish speech from noise and help to adaptively remove noise components from color noise eruptive noisy speech while perceptual criteria is also taken into account. Experimental results and objective quality measurement test results validate the proposed speech enhancement system and illustrate the benefit of the proposed wavelet domain MMSE filtering as an excellent speech enhancement method to provide sufficient noise reduction and good intelligibility and perceptual quality without causing considerable signal distortion and musical background noise method. 2010 IEEE.

The research on distortion measurement and compensation technology in photoelectricity measurement system (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Hong F.; Mujun X.; Zhiqian W.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

The distortion made by optical lens largely affect the measurement accuracy of the large field of view photoelectricity measurement system according to the theory of aberration in the photoelectricity system this paper design a series of distortion measurement devices in connection with the process of distortion correction in photoelectricity system establish the related mathmatics model make the real time distortion correction by the method of software compensation. The experimental results demonstrate the method decrease the measurement error made by the photoelectricity system distortion after the compensation in tatal field of view the systematic measurement error is less than 0.5 picture element. 2010 IEEE.

Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文 OAI收割
International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China
作者: Zhang S.; Zhao J.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

In computer graphics applications mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation very little attentions have been paid to animated models. In this paper we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also we define a deformation degree parameter to be embedded into the aggregated quadric errors so areas with large deformation during the animation can be successfully preserved. Finally a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast easy to implement and as a result good quality dynamic approximations with well-preserved sharp features can be generated at any given frame. 2010 SPIE.

Design of high precision star image locating method used in star sensor technology (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者: Sun H.; Wang Y.; Wang Y.; Wang Y.; Wang Y.

收藏 | 浏览/下载：55/0 | 提交时间：2013/03/25

Nowadays star sensor technology used in aircraft attitude measurement has become more and more popular for its high precision light weight without attitude accumulation errors and other advantages. In order to enhance the accuracy of star sensor it is critical to make efforts to promote the precision of star image locating. High precision star image locating method mentioned in this article includes two aspects. One is sub-pixel dividing algorithm used to acquire the coordinate of stars. The other one is imaging calibration method used to weaken the effect caused by imaging distortion. This method is finally realized in some type of star sensor system. Then an experiment is designed to verify the precision of the method. The result of the experiment shows that the precision of the method is 2" in the experimental environment. 2010 IEEE.