检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

5 篇 会议

馆藏范围

5 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

4 篇 工学
- 3 篇 计算机科学与技术...
- 2 篇 软件工程
- 1 篇 电气工程
- 1 篇 控制科学与工程
2 篇 医学
- 2 篇 临床医学
1 篇 理学
- 1 篇 物理学

主题

5 篇 maxshift method
3 篇 region of intere...
3 篇 image compressio...
2 篇 jpeg 2000
2 篇 image coding
2 篇 bitplane shift
2 篇 scaling based me...
2 篇 region-based ima...
1 篇 wavelet transfor...
1 篇 integer wavelet ...
1 篇 jpeg 2000 region...
1 篇 bitplane-by-bitp...
1 篇 compensation sch...
1 篇 image recompress...
1 篇 roi
1 篇 regions of inter...
1 篇 transform coding
1 篇 the general scal...
1 篇 wavelet domain

机构

1 篇 beijing normal u...
1 篇 usaf ctr integra...
1 篇 jilin univ coll ...
1 篇 swiss fed inst t...
1 篇 college of infor...
1 篇 college of infor...
1 篇 agr univ hebei c...

作者

1 篇 han kj
1 篇 zhang li-bao
1 篇 suter bw
1 篇 han xian-zhong
1 篇 xian-zhong han
1 篇 grosbois r
1 篇 santa-cruz d
1 篇 wang k
1 篇 li-bao zhang
1 篇 zhang lb
1 篇 ebrahimi t

语言

5 篇 英文

检索条件"主题词=Maxshift method"

共 5 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

New approach to JPEG 2000 compliant region of interest coding

New approach to JPEG 2000 compliant region of interest codin...

引用

Conference on Applications of Digital Image Processing XXIV

作者： Grosbois, R Santa-Cruz, D Ebrahimi, T Swiss Fed Inst Technol Signal Proc Lab CH-1015 Lausanne Switzerland

ISBN: (纸本)0819441864

Region Of Interest (ROI) coding is one of the innovative functionalities supported by JPEG 2000, the new ISO/ITU-T still image coding standard developed by the Joint Photographic Experts Group (JPEG). It enables a non-uniform distribution of the image quality between a selected region (the ROI) and the rest of the image (background). This feature is obtained by scaling background coefficients in the wavelet domain. According to the ROI maxshift method defined in JPEG 2000 part I (baseline algorithm), the background bit-planes are down-shifted below all ROI coefficients. In addition, the ROI can have any shape as the latter does not need to be transmitted to a JPEG 2000 decoder (no codestream overhead due to the coding of the shape). On the contrary, this method requires decoding of all ROI coefficients before accessing bit-planes of the background. Furthermore, it uses large shifting values that significantly increase the number of total bit-planes to encode. In JPEG 2000 part 2 (extensions), a generic (Scaling based) ROI coding has been included. This method supports any scaling values. In particular, it allows a rough control on both ROI and background qualities distributions in the codestream, but implies the derivation of a ROI bit-mask at the decoding side. This paper starts by providing some hints on how to choose an optimal maxshift scaling value, as well as how to pad the ROI extra bits appearing during the shift operation. Then, it proposes an encoding algorithm that combines advantages of both ROI methods. This algorithm can be used by applications where visually lossless ROI's is acceptable and is based on an extension of the maxshift method to low scaling values. The generated codestreams remain compliant with the maxshift decoding algorithm described in JPEG 2000 part 1, and can be consequently handled by any JPEG 2000 decoder.

关键词： image coding wavelet domain region of interest ROI scaling based method maxshift method JPEG 2000

来源：评论

学校读者我要写书评

暂无评论

Research on regions of interest coding based on compensation scheme

Research on regions of interest coding based on compensation...

引用

3rd International Symposium on Multispectral Image Processing and Pattern Recognition

作者： Zhang, LB Wang, K Jilin Univ Coll Commun Engn Changchun 130025 Peoples R China

ISBN: (纸本)0819451819

Regions Of Interest coding (ROI) is the important and convenient image coding technique and is supported by JPEG 2000. It enables a non-uniform distribution of the image quality between selected regions of interest and the background. This paper provides a novel ROI bitplanes shift method based on compensation scheme called SHIFT-CS coding algorithm. The method firstly transmits the coding blocks of low-frequency important coefficients that are decoded. The residual coefficients in ROI mask can be transmitted on different bit-planes. When multiple regions of interest are encoded, every ROI has several bit-plane to be transmitted that can be resolved by the ROI's importance. In addition, different objectors can select different regions of interest by the low-quality reconstructive image according to different needs that realize to select ROI based on interactive net browser. The experiments show that SPIFT-CS method combines advantages of both ROI methods. Because the algorithm remain compliant with the maxshift decoding algorithm described in JPEG 2000 part 1, it is also simple and can be handled by any JPEG 2000 decoder.

关键词： integer wavelet transform maxshift method the general scaling-based method regions of interest compensation scheme JPEG 2000

来源：评论

学校读者我要写书评

暂无评论

Region-based embedded image coding using Partial Subbands Maximum Bitplanes Shift

Region-based embedded image coding using Partial Subbands Ma...

引用

5th International Conference on Machine Learning and Cybernetics

作者： Han, Xian-Zhong Zhang, Li-Bao Agr Univ Hebei Coll Informat Sci & Technol Baoding 071001 Peoples R China Beijing Normal Univ Coll Informat Sci & Technol Beijing 100875 Peoples R China

ISBN: (纸本)1424400600

The Region of Interest (ROI) coding is an important application of region-based still image coding and can encode these significant regions with higher quality than others (background). In this paper, we present a new region-based image coding method called Partial Subbands Maximum Bitplanes Shift (PSMBShift). The new method applies different scaling strategies for the different frequency subbands of wavelet image. In low and mediate frequency subbands, the maxshift method recommended by JPEG2000 standard is used to scale all bitplanes of the ROI coefficients. In high frequency subbands, only the partial most significant bitplanes of the ROI coefficients are scaled and the other bitplanes of the ROI coefficients are obtained in original position. The experiments show that the PSMBShift method can not only combine the advantages of the two standard methods of JPEG2000, but also can control efficiently the quality between the ROIs and BG by adjusting scaling values of high frequency subbands.

关键词： image compression region-based image coding region of interest bitplane shift maxshift method

来源：评论

学校读者我要写书评

暂无评论

Low-bit rate enhanced quality JPEG to JPEG 2000 encoding

Low-bit rate enhanced quality JPEG to JPEG 2000 encoding

引用

Conference on Visual Information Processing XII

作者： Han, KJ Suter, BW USAF Ctr Integrated Transmiss & Exploitat Res Lab Informat Directorate Rome NY 13441 USA

ISBN: (纸本)0819449687

The JPEG 2000 standard is a wavelet based compression methodology that achieves nearly an order of magnitude better compression performance than the existing DCT-based JPEG standard. Thus, it is desirable to convert existing JPEG images into JPEG 2000 images in order to minimize the storage and/or communications bandwidth requirements. JPEG 2000's performance enhancement can be maximized if its Region of Interest (ROI) coding option is employed. Unfortunately, this option results in a low bit rate coder, which tends to be plagued with ringing artifacts due to the abrupt truncation of high frequency wavelet coefficients at the Rol edges. In this paper, we briefly describe a novel minimum distortion transcoding technology to convert compressed JPEG images into compressed JPEG 2000 images. Experimental results indicate that the visual quality of resulting images is improved, while the time required to download them has been dramatically deceased. We expect that these new techniques can also be applied to computer vision, medical imaging, and e-commerce applications.

关键词： image coding transform coding wavelet transform image compression image recompression JPEG 2000 Region of Interest (ROI) coding scaling based method maxshift method bitplane-by-bitplane shift method

来源：评论

学校读者我要写书评

暂无评论

REGION-BASED EMBEDDED IMAGE CODING USING PARTIAL SUBBANDS MAXIMUM BITPLANES SHIFT

REGION-BASED EMBEDDED IMAGE CODING USING PARTIAL SUBBANDS MA...

引用

2006 International Conference on Machine Learning and Cybernetics(IEEE第五届机器学习与控制论坛)

作者： XIAN-ZHONG HAN LI-BAO ZHANG College of Information Science and Technology Agricultural University of Hebei Baoding 071001 Chi College of Information Science and Technology Beijing Normal University Beijing 100875 China

The Region of Interest (ROI) coding is an important application of region-based still image coding and can encode these significant regions with higher quality than others (background). In this paper, we present a new region-based image coding method called Partial Subbands Maximum Bitplanes Shift (PSMBShift). The new method applies different scaling strategies for the different frequency subbands of wavelet image. In low and mediate frequency subbands, the maxshift method recommended by JPEG2000 standard is used to scale all bitplanes of the ROI *** high frequency subbands, only the partial most significant bitplanes of the ROI coefficients are scaled and the other bitplanes of the ROI coefficients are obtained in original position. The experiments show that the PSMBShift method can not only combine the advantages of the two standard methods of JPEG2000, but also can control efficiently the quality between the ROIs and BG by adjusting scaling values of high frequency subbands.

关键词： Image compression region-based image coding region of interest bitplane shift maxshift method

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：