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北京大学 [5]
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长春光学精密机械与物... [1]
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会议论文 [1]
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High-Efficiency Image Coding via Near-Optimal Filtering
期刊论文
IEEE SIGNAL PROCESSING LETTERS, 2017
Zhang, Xinfeng
;
Wang, Shiqi
;
Zhang, Yabin
;
Lin, Weisi
;
Ma, Siwei
;
Gao, Wen
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
High-efficiency video coding (HEVC)
image compression
near-optimal filter
sample classification
wiener filter
DEBLOCKING FILTER
HEVC STANDARD
SIMILARITY
REDUCTION
A Joint Compression Scheme of Video Feature Descriptors and Visual Content
期刊论文
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2017
Zhang, Xiang
;
Ma, Siwei
;
Wang, Shiqi
;
Zhang, Xinfeng
;
Sun, Huifang
;
Gao, Wen
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Video feature descriptor
visual retrieval
video compression
LOSSY COMPRESSION
LOCAL FEATURES
SEARCH
STANDARD
REPRESENTATION
FRAMEWORK
AREAS
Nonlocal Adaptive In-Loop Filter via Content-Dependent Soft-Thresholding for HEVC
其他
2015-01-01
Zhang, Xinfeng
;
Lin, Weisi
;
Wang, Shiqi
;
Ma, Siwei
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  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
nonlocal
SVD
soft-thresholding
adaptive loop filter
ARTIFACT REDUCTION
VIDEO
COMPRESSION
STANDARD
DOMAIN
A vector quantization based approach for CFA data compression in wireless endoscopy capsule
期刊论文
2010, 2010
Xiaowen Li
;
Guolin Li
;
Xiang Xie
;
Zhihua Wang
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  |  
浏览/下载:3/0
Storage and compression design of high speed CCD (EI CONFERENCE)
会议论文
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
Cai X.
;
Zhai L. P.
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浏览/下载:47/0
  |  
提交时间:2013/03/25
In current field of CCD measurement
large area and high resolution CCD is used to obtain big measurement image
so that
speed and capacity of CCD requires high performance of later storage and process system. The paper discusses how to use SCSI hard disk to construct storage system and use DSPs and FPGA to realize image compression. As for storage subsystem
Because CCD is divided into multiplex output
SCSI array is used in RAID0 way. The storage system is composed of high speed buffer
DMA controller
control MCU
SCSI protocol controller and SCSI hard disk. As for compression subsystem
according to requirement of communication and monitor system
the output is fixed resolution image and analog PAL signal. The compression means is JPEG2000 standard
in which
9/7 wavelets in lifting format is used. 2 DSPs and FPGA are used to compose parallel compression system. The system is composed of FPGA pre-processing module
DSP compression module
video decoder module
data buffer module and communication module. Firstly
discrete wavelet transform and quantization is realized in FPGA. Secondly
entropy coding and stream adaption is realized in DSPs. Last
analog PAL signal is output by Video decoder. Data buffer is realized in synchronous dual-port RAM and state of subsystem is transfer to controller. Through subjective and objective evaluation
the storage and compression system satisfies the requirement of system. 2009 SPIE.
Variable-Bin-Rate CABAC Engine for H.264/AVC High Definition Real-Time Decoding
期刊论文
ieee transactions on very large scale integration vlsi systems, 2009
Zhang, Peng
;
Xie, Don
;
Gao, Wen
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浏览/下载:2/0
  |  
提交时间:2015/11/12
CABAC
parallel architectures
real-time
video coding
VIDEO COMPRESSION STANDARD
ARCHITECTURE
CODER
Inter-view direct mode for multiview video coding
期刊论文
ieee transactions on circuits and systems for video technology, 2006
Guo, Xun
;
Lu, Yan
;
Wu, Feng
;
Gao, Wen
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  |  
浏览/下载:4/0
  |  
提交时间:2015/11/12
direct mode
inter-view correlation
motion vector prediction
multiview video coding (MVC)
COMPRESSION
STANDARD
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