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长春光学精密机械与物... [2]
西安光学精密机械研究... [2]
计算技术研究所 [1]
自动化研究所 [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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2024 [1]
2021 [1]
2019 [1]
2011 [1]
2008 [1]
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Parsing Objects at a Finer Granularity: A Survey
期刊论文
OAI收割
Machine Intelligence Research, 2024, 卷号: 21, 期号: 3, 页码: 431-451
作者:
Yifan Zhao
;
Jia Li
;
Yonghong Tian
  |  
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2024/05/23
Finer granularity, visual parsing, part segmentation, fine-grained object recognition, part relationship
Fine-Grained Visual Categorization by Localizing Object Parts With Single Image
期刊论文
OAI收割
IEEE TRANSACTIONS ON MULTIMEDIA, 2021, 卷号: 23, 页码: 1187-1199
作者:
Zheng, Xiangtao
;
Qi, Lei
;
Ren, Yutao
;
Lu, Xiaoqiang
  |  
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2021/05/28
Feature extraction
Detectors
Training
Image representation
Visualization
Semantics
Birds
Fine-grained visual categorization
Part localization
Part relationship
Spectral clustering
Dropout learning
Joint Pedestrian and Body Part Detection via Semantic Relationship Learning
期刊论文
OAI收割
APPLIED SCIENCES-BASEL, 2019, 卷号: 9, 期号: 4, 页码: 14
作者:
Han, Hu
;
Chen, Wenbai
;
Gu, Junhua
;
Lan, Chuanxin
  |  
收藏
  |  
浏览/下载:63/0
  |  
提交时间:2019/08/16
joint pedestrian and body part detection
adaptive joint non-maximum suppression
semantic relationship learning
Design and demonstration of micro multi-step mirrors and light source in micro FTIR (EI CONFERENCE)
会议论文
OAI收割
6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011, February 20, 2011 - February 23, 2011, Kaohsiung, Taiwan
Liang Z.
;
Fu J.
;
Feng C.
;
Liang J.
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2013/03/25
To obtain high resolution
high signal-to-noise ratio (SNR)
high reliability and real time in wide spectral range
we study the space modulation Micro Fourier Transform Spectrometer (FTS) based on multi-step mirrors covering the spectral range of 3-5m and 8-12 m in theory and experiment. The influences of spectrum reconstruction caused by the diffraction and extended light source in Fourier Transform Infrared Spectrometer (FTIR) are analyzed. A method to reduce the noises in spectrum reconstruction and the relationship between coherent intensity and solid angle of light source are discussed. An extended light source with suitable size is chosen
considering the requirement of SNR and spectrum resolving power in the optical design. Furthermore
the fabrication of micro multi-step mirrors
which is the core part of FTS
is investigated. Three methods for fabricating multi-step micro mirrors are demonstrated. 2011 IEEE.
The effect on tolerance distributing of an off-axis three mirror anastigmatic optical system with wavefront coding technology (EI CONFERENCE)
会议论文
OAI收割
Optical System Alignment and Tolerancing II, August 10, 2008 - August 11, 2008, San Diego, CA, United states
作者:
Yan F.
;
Zhang X.-J.
;
Yan F.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2013/03/25
The wavefront coding technology is known as a system-level technology which can extend the depth of focus of optical system by innovative optical design and image restoration. This technology can control misfocus related aberrations including misfocus
astigmatism
and Petzval curvature
temperature-related misfocus in digital imaging systems. It can also help optical system tolerate more residual error in optical manufacturing and alignment besides misfocus. The brief introduction of wavefront coding technology and the wavefront coded TMA system under research is presented respectively in part 1 and part 2. The "MTF similarity" is defined to describe the relationship among MTF at different position or different fields in the third part. It is also shown in this part that the MTF similarity of wavefront coded system is much higher than the normal system within a large range. In part 4 comparison between the origin system and the new system with wavefront coding technology is provided after multiple errors are introduced
from which it can be observed that the system with wavefront coding technology can tolerate much bigger error than origin system. The error tolerance is re-distributed according to a new criterion based on MTF similarity. If the MTF similarity is less than a certain value
it can be regarded that the system can tolerate the residual error. The new error tolerance is displayed and it is shown that the wavefront coding technology can also loosen the error distributing besides extended the depth of focus.
Fine-grained Visual Categorization by Localizing Object Parts with Single Image
期刊论文
OAI收割
IEEE Transactions on Multimedia
作者:
Zheng, Xiangtao
;
Qi, Lei
;
Ren, Yutao
;
Lu, Xiaoqiang
  |  
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2020/06/02
Fine-grained visual categorization
Part localization
Part relationship
Spectral clustering
Dropout learning