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浏览/检索结果: 共14条，第1-10条 帮助

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SAC-GAN: Structure-Aware Image Composition 期刊论文  OAI收割
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, 2024, 卷号: 30, 期号: 7, 页码: 3151-3165
作者:  Zhou, Hang;  Ma, Rui
  |  收藏  |  浏览/下载：7/0  |  提交时间：2024/12/06
Mapping Forest Types in China with 10 m Resolution Based on Spectral-Spatial-Temporal Features 期刊论文  OAI收割
REMOTE SENSING, 2021, 卷号: 13, 期号: 5, 页码: 21
作者:  Cheng, Kai;  Wang, Juanle;  Yan, Xinrong
  |  收藏  |  浏览/下载：32/0  |  提交时间：2021/06/10
Mapping Forest Types in China with 10 m Resolution Based on Spectral-Spatial-Temporal Features 期刊论文  OAI收割
REMOTE SENSING, 2021, 卷号: 13, 期号: 5, 页码: 21
作者:  Cheng, Kai;  Wang, Juanle;  Yan, Xinrong
  |  收藏  |  浏览/下载：23/0  |  提交时间：2021/06/10
Development of Dense Time Series 30-m Image Products from the Chinese HJ-1A/B Constellation: A Case Study in Zoige Plateau, China 期刊论文  OAI收割
REMOTE SENSING, 2015, 卷号: 7, 期号: 12, 页码: 16647-16671
作者:  Bian, Jinhu;  Li, Ainong;  Wang, Qingfang;  Huang, Chengquan
收藏  |  浏览/下载：59/0  |  提交时间：2015/12/22
Targeting Accurate Object Extraction From an Image: A Comprehensive Study of Natural Image Matting 期刊论文  OAI收割
ieee transactions on neural networks and learning systems, 2015, 卷号: 26, 期号: 2, 页码: 185-207
作者:  Zhu, Qingsong;  Shao, Ling;  Li, Xuelong;  Wang, Lei
收藏  |  浏览/下载：43/0  |  提交时间：2015/07/14
Intent-aware image cloning 期刊论文  OAI收割
VISUAL COMPUTER, 2013, 卷号: 29, 期号: 6-8, 页码: 599-608
Bie, Xiaohui; Wang, Wencheng; Sun, Hanqiu; Huang, Haoda; Zhang, Minying
  |  收藏  |  浏览/下载：27/0  |  提交时间：2014/12/16
The research on statistical properties of TDI-CCD imaging noise (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu Y.-Y.; Shen X.-H.; He G.-X.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
TDI-CCD can improve the sensitivity of space camera without any degradation of spatial resolution which is widely used in aerospace imaging devices. The article describes the basic working principle and application characteristics of TDI-CCD devices  analyses the composition of TDI-CCD imaging noise  and propose a new method to analyze TDI-CCD imaging noise with statistical probability distribution. In order to estimate the distribution of gray values affect by noise we introduced the concept of skewness and kurtosis. We design an experiment using constant illumination light source  take image with TDI-CCD working at different stage such as stage 16  stage 32  stage 48  stage 64 and stage 96  analyse the characteristics of image noise with the method we proposed  experimental results show that the gray values approximately meet normal distribution in large sample cases. 2011 SPIE.  
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu S.; Yan Y.; Xu K.; Jin G.
收藏  |  浏览/下载：47/0  |  提交时间：2013/03/25
With the development of aerospace remote sensing technology  the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures  the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera  the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera  the compensation method of image motion to space camera is researched. First  the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second  the system adopts 80C31 as controller of drift angle  and adopts stepping motor for actuators  and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced  and it achieve the closed-loop control of the drift angle position. At the last  this paper analyses the transmission precision of the mechanism. Through the experiment  we measured the actual precision of the image motion compensation mechanism  and compared with the theoretical analysis. There are two major contributions in this paper. First  the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism  it will bring adverse effects for the precision and stiffness of mechanism. For this problem  This paper designed a image motion compensation that have some advantages such as small size  light weight at the same time  high precision  stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second  the traditional mechanism control need to corrected  fitting and iterative for the control formula of mechanism. Only in this way  we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting  It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5  -4  -3  -2  -1  0  +1  +2  +3  +4  +4 as the expectation value of the imaginary drift angle  we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'  and it can achieve the high-precision image motion compensation. 2011 SPIE.  
Bootstrap loader design of aerospace payload controller based on TSC695F (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Computational Intelligence and Natural Computing, CINC 2010, September 13, 2010 - September 14, 2010, Wuhan, China
Xu W.; Piao Y.
收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25
Anti-radiation TSC695F is usually used as aerospace payload controller in tasks to ensure the aerospace payload having extremely high reliability in abominable space environment. The processor bases on SP ARC V7 architecture with parity check and EDAC  so it could design out high reliable bootstrap loader to guarantee the operation system of VxWorks and application codes loaded correctly and worked stable and high effective. First  this paper put forward the system hardware composition and boot mode which apply for aerospace payload  then it makes clear the related contents of register group initialization  stack initialization  system hardware initialization in bootstrap loader of TSC695F and give out the method to establish TRAP table. That's all through comparing different type of organize mode of program image. After that  compiling of target codes have been described and the kernel code of MakeFile had been given at the same time for reference aimed at the realization of engineering. Although this paper is based on TSC695F  but it could be extended to other embedded system based on SP ARC for bootstrap loader analysis and design  for example  the TSC697 which based on SP ARC V8 with higher performance  so this paper has extremely high engineering value. 2010 IEEE.  
基于主动外观模型的人脸图像合成 学位论文  OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2008
王红侠
收藏  |  浏览/下载：36/0  |  提交时间：2015/09/02