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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... [5]
软件研究所 [2]
地理科学与资源研究所 [1]
采集方式
OAI收割 [8]
内容类型
会议论文 [7]
SCI/SSCI论文 [1]
发表日期
2015 [1]
2012 [1]
2011 [1]
2010 [1]
2006 [4]
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A review of recent developments in HASM
SCI/SSCI论文
OAI收割
2015
作者:
Yue T. X.
;
Zhang, L. L.
;
Zhao, N.
;
Zhao, M. W.
;
Chen, C. F.
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2015/12/09
Surface modeling method
HASM
Error
Computational speed
Memory
requirement
Accuracy
major terrestrial ecosystems
high-speed method
high-accuracy
dem
construction
china
information
integration
satellite
algorithm
climate
Embedded image grabber and processing system based on camera link (EI CONFERENCE)
会议论文
OAI收割
2012 World Automation Congress, WAC 2012, June 24, 2012 - June 28, 2012, Puerto Vallarta, Mexico
作者:
Wang Z.
;
Zhao Y.
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2013/03/25
In order to realize real-time measurement based on image
proposes a design project of embedded image grabber and processing system based on camera link interface. The system adopts FPGA+DSP structure design. DSP used to process the image and send out processing results to external. FPGA adopts modularize design. It contains camera link interface module
image memory module
DSP connection module and so on. The experiment results show that the system design flexibility
small cubage
high real-time image processing
and can fulfil the requirement of real-time measurement. 2012 TSI Press.
The sequence measurement system of the IR camera (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Zhang H.-B.
;
Han H.-X.
;
Geng A.-H.
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2013/03/25
Currently
the IR cameras are broadly used in the optic-electronic tracking
optic-electronic measuring
fire control and optic-electronic countermeasure field
but the output sequence of the most presently applied IR cameras in the project is complex and the giving sequence documents from the leave factory are not detailed. Aiming at the requirement that the continuous image transmission and image procession system need the detailed sequence of the IR cameras
the sequence measurement system of the IR camera is designed
and the detailed sequence measurement way of the applied IR camera is carried out. The FPGA programming combined with the SignalTap online observation way has been applied in the sequence measurement system
and the precise sequence of the IR camera's output signal has been achieved
the detailed document of the IR camera has been supplied to the continuous image transmission system
image processing system and etc. The sequence measurement system of the IR camera includes CameraLink input interface part
LVDS input interface part
FPGA part
CameraLink output interface part and etc
thereinto the FPGA part is the key composed part in the sequence measurement system. Both the video signal of the CmaeraLink style and the video signal of LVDS style can be accepted by the sequence measurement system
and because the image processing card and image memory card always use the CameraLink interface as its input interface style
the output signal style of the sequence measurement system has been designed into CameraLink interface. The sequence measurement system does the IR camera's sequence measurement work and meanwhile does the interface transmission work to some cameras. Inside the FPGA of the sequence measurement system
the sequence measurement program
the pixel clock modification
the SignalTap file configuration and the SignalTap online observation has been integrated to realize the precise measurement to the IR camera. Te sequence measurement program written by the verilog language combining the SignalTap tool on line observation can count the line numbers in one frame
pixel numbers in one line and meanwhile account the line offset and row offset of the image. Aiming at the complex sequence of the IR camera's output signal
the sequence measurement system of the IR camera accurately measures the sequence of the project applied camera
supplies the detailed sequence document to the continuous system such as image processing system and image transmission system and gives out the concrete parameters of the fval
lval
pixclk
line offset and row offset. The experiment shows that the sequence measurement system of the IR camera can get the precise sequence measurement result and works stably
laying foundation for the continuous system. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Multi-channel high-speed TDICCD image data acquisition and storage system (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Li Y.
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2013/03/25
For multi-channel high-speed image data of certain space remote sensing camera
this paper proposed a new image data acquisition and storage system. First of all
the system uses Field-Programmable Gate Array(FPGA) controlling synchronous dynamic random access memory(SDRAM) array to realize the cache of image data
then according to the received commands
sends certain channel's image data to the acquisition card to write the image data into SCSI hard disk and implements the final storage. A Time Delay Integral Charge Couple Device(TDICCD) image data acquisition and storage system with five channels is developed
pixel clock rate is up to 96MHz
total effective data rate is up to 2.88Gb/s
single channel storage depth is up to 7810 lines. The experimental results indicate that this system work stably
high effectively which can meet the requirement of acquisition and storage of multi-channel high-speed TDICCD image data. 2010 IEEE.
Compression of remote sensing image based on Listless Zerotree Coding and DPCM (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Chen S.-L.
;
Huang L.-Q.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2013/03/25
The data quantity of remote sensing image is very large. Furthermore
the lowest frequency subband contains the main energy of original image and reflects the coarse of original image after remote sensing image is transformed by wavelet
so it is very important to the reconstructed image. Therefore a hybrid image compression method based on Listless Zerotree Coding (LZC) and DPCM is presented
namely
the lowest frequency subband is compressed by DPCM and others are compressed by LZC. LZC is a kind of zerotree coding algorithm for hardware implementation
which is based on SPIHT and substitutes two significant bit maps for three lists in SPIHT algorithm. Thereby LZC significantly reduces the memory requirement and complexity during encoding and decoding procedure. But LZC doesn't recognize the significance of grandchild sets
so the PSNR values of LZC are lower than SPIHT's and the compression speed drops. It is improved by adding a significant bit map that recognizes the significance of grandchild sets. A comparison reveals that the PSNR results of the hybrid compression method are 2 dB higher than those of LZC
and the compression speed is also improved.
Study on CCD image compression and mass storage (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu H.
;
Liu H.
;
Liu H.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2013/03/25
When CCD camera photographs massive images in the air
it is very important to compress and save CCD image timely and validly. This paper designs the CCD image compression and mass storage system. The one part is image compression: this paper introduces a reduced memory still image compression algorithm based on Listless Zerotree Coding (LZC). Compared with SPIHT
the approach significantly reduced memory requirement and no reducing the quality of the reconstructed image. The other part is image mass storage: this system uses a kind of special hard disk storage devices that can realize faster data transmission to SCSI (Small Computer System Interface) devices even if it separates oneself from PCs. In the faster data acquisition and storage system
data storage is a key technology. Normal approach is saving the data to mass memories
and then processing and saving the data after complete acquisition. The continuous acquisition time is restricted with the storage capacity in the normal method so that it can't receive the requirement of CCD image storage on many occasions. While its price will be geminate increasing
when we increase the storage capacity. So the approach in this paper is better one to use fast disks on data direct mass storage considering the storage capacity
read/write speed and unit cost. The result of the experiment shows that the system has compressed and saved CCD image validly
so it reached the anticipative purpose.
ltl model checking via search space partition
会议论文
OAI收割
6th International Conference on Quality Software, Beijing, PEOPLES R CHINA, OCT 27-28,
Pu Fei
;
Zhang Wenhui
  |  
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2011/07/28
LTL model checking
complexity reduction
compositional verification
memory requirement
nondeterministic choice
search space partition
state space explosion
computational complexity
formal verification
search problems
ltl model checking via search space partition
会议论文
OAI收割
6th International Conference on Quality Software, Beijing, PEOPLES R CHINA, OCT 27-28,
Pu Fei
;
Zhang Wenhui
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2011/07/28
LTL model checking
complexity reduction
compositional verification
memory requirement
nondeterministic choice
search space partition
state space explosion
computational complexity
formal verification
search problems