中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
计算技术研究所 [1]
自动化研究所 [1]
采集方式
OAI收割 [4]
内容类型
会议论文 [2]
期刊论文 [2]
发表日期
2024 [1]
2009 [2]
2004 [1]
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HSA-EDI: An Efficient One-Round Integrity Verification for Mobile Edge Caching Using Hierarchical Signature Aggregation
期刊论文
OAI收割
IEEE TRANSACTIONS ON NETWORK AND SERVICE MANAGEMENT, 2024, 卷号: 21, 期号: 3, 页码: 3358-3371
作者:
Li, Jian
;
Zhao, Qinglin
;
Teng, Shaohua
;
Wu, Naiqi
;
Li, Guanghui
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2024/12/06
Servers
Data integrity
Image edge detection
Computational efficiency
Heuristic algorithms
Maintenance engineering
Quality of service
Edge data integrity
mobile edge computing
peredge one-round
signature aggregation
Level 0 and level 1 data processing for a type of hyper-spectral imager (EI CONFERENCE)
会议论文
OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 21, 2009, Shanghai, China
Li X.
;
Yan C.
收藏
  |  
浏览/下载:81/0
  |  
提交时间:2013/03/25
Hyper-spectral imaging (HSI) is a kind of optical remote sensor that can simultaneously obtain spatial and spectral information of ground targets. We are now designing a data processing system for a type of space-borne push-broom HSI
then it performs radiometric and spectral calibration based on the ground calibration results and onboard calibration collection. The detailed algorithms for bad pixel replacement
which has 128 spectral channels covering the spectral range from 400nm to 2500nm. With its large amount of spectral channels
radiometric and spectral calibration were presented. After processing
the HSI collects large volume of spectral imaging data need to be efficiently and accurately processed and calibrated. In this paper
the digital numbers downlinked from the spacecraft can be converted into at-sensor absolute spectral radiance of ground targets
the detailed Level 0 and Level 1 data processing steps for the HSI were presented. The Level 0 processing refers to a set of tasks performed on the data downlinked from the spacecraft
thus providing accurate quantified spectral imaging data for various applications. 2009 SPIE.
including decoding to extract science data
separating the science data into files corresponding to different tasks (e.g. ground imaging
dark imaging
and onboard calibration)
checking data integrity and instrument settings
data format conversion
and Level 0 files creation. The Level 1 processing performs several steps on Level 0 data. Firstly
it corrects the image artifacts (mostly the SWIR smear effect)
subtracts the dark background
and performs the bad pixel replacement according to the prelaunch measurement
Signal integrity simulation design of image processor PCB combined with electromagnetic compatibility analyses based on altium designer 6 (EI CONFERENCE)
会议论文
OAI收割
2009 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009, May 25, 2009 - May 27, 2009, Xi'an, China
Cheng Y. Q.
;
Zhu M.
;
Ge W.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
With the coming of the high-speed digital system age
signal integrity (SI) and electromagnetic compatibility (EMC) should not be ignored any more. In this paper
based on basic theories of SI and EMC
the high-speed digital design method for PCB using the SI simulation tool of Altium Designer 6 and EMC analyses is introduced
and the impedance control
power integrity (PI) design and SI (reflections and crosstalk) design of a piece of image processor PCB are demonstrated in detail. The simulation results show that the impedance control is perfect
reasonable termination can improve the waveforms and control the reflections and crosstalk. 2009 IEEE.
Detect image tamper by semi-fragile digital watermarking
期刊论文
OAI收割
CHINESE JOURNAL OF ELECTRONICS, 2004, 卷号: 13, 期号: 1, 页码: 54-57
作者:
Liu, FL
;
Wang, YS
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2015/11/08
integrity of image
semi-fragile image
predictive technique
scale quantization