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

87 篇 会议
19 篇 期刊文献
1 篇 学位论文

馆藏范围

107 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

82 篇 工学
- 61 篇 计算机科学与技术...
- 30 篇 信息与通信工程
- 24 篇 电气工程
- 20 篇 软件工程
- 9 篇 电子科学与技术（可...
- 5 篇 仪器科学与技术
- 4 篇 光学工程
- 2 篇 控制科学与工程
- 2 篇 生物工程
- 1 篇 材料科学与工程（可...
- 1 篇 建筑学
- 1 篇 土木工程
- 1 篇 化学工程与技术
- 1 篇 交通运输工程
- 1 篇 生物医学工程（可授...
44 篇 医学
- 44 篇 临床医学
- 1 篇 医学技术（可授医学...
16 篇 理学
- 10 篇 物理学
- 5 篇 数学
- 2 篇 化学
- 2 篇 生物学
- 2 篇 统计学（可授理学、...
- 1 篇 系统科学
5 篇 管理学
- 3 篇 管理科学与工程(可...
- 2 篇 图书情报与档案管...
- 1 篇 工商管理

主题

13 篇 image processing
10 篇 image compressio...
8 篇 humans
5 篇 video coding
5 篇 image segmentati...
5 篇 video
5 篇 signal processin...
5 篇 image coding
5 篇 image analysis
5 篇 motion models
4 篇 motion estimatio...
4 篇 cameras
4 篇 visual communica...
4 篇 visual perceptio...
4 篇 signal processin...
4 篇 shape
3 篇 noise reduction
3 篇 scalable video c...
3 篇 data modeling
3 篇 image retrieval

机构

2 篇 univ elect sci &...
2 篇 school of electr...
2 篇 tottori universi...
2 篇 rensselaer polyt...
2 篇 hong kong univ s...
1 篇 elektrik ve elek...
1 篇 osaka univ grad ...
1 篇 asee
1 篇 univ granada dep...
1 篇 shaoguan univ de...
1 篇 western sydney u...
1 篇 electrical engin...
1 篇 univ calif santa...
1 篇 robotics society...
1 篇 korea adv inst s...
1 篇 university of ot...
1 篇 astar i2r
1 篇 univ washington ...
1 篇 univ sydney sch ...
1 篇 univ autonoma ba...

作者

3 篇 pearlman wa
2 篇 takeshi saitoh
2 篇 damian m. tan
2 篇 wu david
2 篇 chen chen
2 篇 tan damian m.
2 篇 kotera hiroaki
2 篇 zhu shuyuan
2 篇 david wu
2 篇 abhayaratne g. c...
2 篇 saito t
2 篇 ryosuke konishi
2 篇 canagarajah n
2 篇 bull d
2 篇 zeng bing
2 篇 hong ren wu
2 篇 ortega a
2 篇 wu hong ren
2 篇 meng xiandong
2 篇 yea s

语言

99 篇 英文
4 篇 其他
4 篇 中文

检索条件"任意字段=Conferenceon Visual Communications and Image Processing 2006"

共 107 条记录，以下是21-30 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：

Adaptive in-band motion compensated temporal filtering based on motion mismatch detection in the highpass subbands

Adaptive in-band motion compensated temporal filtering based...

引用

conferenceon visual communications and image processing 2006

作者： Gao, AY Canagarajah, N Bull, D Univ Bristol Image Commun Grp Ctr Commun Res Merchant Ventrues BldgWoodland Rd Bristol BS8 1UB Avon England

ISBN: (纸本)0819461172

This paper presents an adaptive in-band motion compensated temporal filtering (MCTF) scheme for 3-D wavelet based scalable video coding. The proposed scheme overcomes the problem of visual artifacts due to motion mismatch when motion information of the spatial lowpass subband is inaccurately applied to the highpass subbands in decoding high spatial resolution video. More specifically, the proposed scheme determines if the mismatch energy is beyond an acceptable threshold in the wavelet domain and then adaptively switches between using the motion information from the spatial lowpass and highpass subbands in the MCTF prediction step. As a result, the amount of motion overhead needs to be transmitted is minimized and a good trade-off. between motion information and texture is realized. Experimental results show that the proposed scheme greatly improves the quality of the decoded video at high spatial resolutions while achieving a high coding efficiency. Furthermore, the proposed adaptive scheme requires only modifications when performing MCTF in the highpass subbands, hence the original strength of in-band MCTF for decoding low spatial resolution video is well preserved.

关键词： in-band MCTF wavelet-domain motion mismatch visual artifacts motion-texture trade-off

来源：评论

学校读者我要写书评

暂无评论

Registration of aliased images for super-resolution imaging

Registration of aliased images for super-resolution imaging

引用

conferenceon visual communications and image processing 2006

作者： Vandewalle, P Sbaiz, L Süsstrunk, S Vetterli, M Ecole Polytech Fed Lausanne Sch Comp & Commun Sci CH-1015 Lausanne Switzerland Univ Calif Berkeley Dept Elect Engn & Comp Sci Berkeley CA 94720 USA

ISBN: (纸本)0819461172

Super-resolution imaging techniques reconstruct a high resolution image from a set of low resolution images that are taken from almost the same point of view. The problem can be subdivided into two main parts: an image registration part where the different input images are aligned with each other, and a reconstruction part, where the high resolution image is reconstructed from the aligned images. In this paper, we mainly consider the first step: image registration. We present three frequency domain methods to accurately align a set of undersampled images. First, we describe a registration method for images that have an aliasing-free part in their spectrum. The images are then registered using that aliasing-free part. Next, we present two subspace methods to register completely aliased images. Arbitrary undersampling factors are possible with these methods, but they have an increased computational complexity. In all three methods, we only consider planar shifts. We also show the results of these three alagorithms in simulations and practical experiments.

关键词： super-resolution imaging image registration aliasing undersampling

来源：评论

学校读者我要写书评

暂无评论

Video frame rate up conversion under inconsistent camera

Video frame rate up conversion under inconsistent camera

引用

conferenceon visual communications and image processing 2006

作者： Wang, JS Patel, N Grosky, W Wayne State Univ Dept Comp Sci Multimedia Informat Lab Detroit MI 48202 USA

ISBN: (纸本)0819461172

In this paper, we address the problem of video frame rate up conversion (FRC) in compressed domain. FRC is often recognized as video temporal interpolation. The problem is very challenging when targeted for a video sequence with an inconsistent camera and object motion. A novel compressed domain motion compensation scheme is presented and applied in this paper. The proposed algorithm uses MPEG-2 compressed motion vectors to undergo a cumulative spatiotemporal interpolation over a temporal sliding window of frames. An iterative rejection scheme based on the affine motion model is exploited to detect the global camera motion. Subsequently, the foreground object separation is performed by examining the temporal consistency of the output of iterative rejections. This consistency check process helps to conglomerate the resulting foreground macroblocks and weeds out the unqualified blocks, thus further refines the crude segmentation results. Finally, different strategies for compensating the camera motion and the object motion are applied to interpolate the new frames. Illustrative examples are provided to demonstrate the efficacy of the proposed approach. Experimental results are compared with the popular block based frame interpolation approach.

关键词： Video Cameras Motion estimation Motion models Video compression Video processing 3D modeling Detection and tracking algorithms Error analysis Digital video discs

来源：评论

学校读者我要写书评

暂无评论

Coupled nonlinear-diffusion color image sharpening based on the chromaticity-brightness model

Coupled nonlinear-diffusion color image sharpening based on ...

引用

conferenceon visual communications and image processing 2006

作者： Saito, T Nosaka, R Komatsu, T Kanagawa Univ High Tech Res Ctr Dept Elect Elect & Informat Engn 3-27-1 Rokkakubashi Yokohama Kanagawa 2218686 Japan

ISBN: (纸本)0819461172

Previously we have presented a selective image sharpening method based on the coupled nonlinear diffusion process composed of a nonlinear diffusion term, a fidelity term and an isotropic peaking term, and it can sharpen only blurred edges without increasing the noise visibility. Our previously presented prototypal color-image sharpening methods based on the coupled nonlinear-diffusion process have been formulated on the linear color models, namely, the channel-by-channel model and the 3D vectorial model. Our prototypal methods can sharpen blurred color step edges, but they do not necessarily enhance contrasts of signal variations in complex texture image regions so well as in simple step-edge regions. To remedy the drawback, this paper extends our coupled nonlinear-diffusion color-image sharpening method to the nonlinear non-flat color model, namely, the chromaticity-brightness model, which is known to be closely relating to human color perception. We modify our time-evolution PDE's for the non-flat space of the chromaticity vector and present its digital implementations. Through experimental simulations, we compare our new color-image sharpening method based on the chromaticity-brightness model with our prototypal color-image sharpening methods based on the linear color models.

关键词： image sharpening de-blurring de-noising non-flat color model time-evolution PDE iterative algorithm

来源：评论

学校读者我要写书评

暂无评论

Space-time multiple description video coding

Space-time multiple description video coding

引用

conferenceon visual communications and image processing 2006

作者： Wang, D Canagarajah, N Bull, D Univ Bristol Image Commun Grp Ctr Commun Res Merchant Ventures BldgWoodland Rd Bristol BS8 1UB Avon England

ISBN: (纸本)0819461172

This paper develops a combined space-time multiple description video coding (ST-MDVC) scheme and corresponding error concealment methods in order to adapt to error prone packet networks, especially for multiple channels. It generates four descriptions, instead of two in most other MDVC schemes, with much lower redundancy than others. The three-loop slice group MDVC approach of [8] is used to achieve spatial description splitting. MDVC is very suitable for multiple channel environments, and especially able to maintain acceptable quality when some of these channels fail completely, i.e. in an on-off MDC environment, without experiencing any drifting problem. Our MDC scheme coupled with the proposed concealment approaches proved to be suitable not only for the on-off MDC environment case (data from one channel fully lost), but also for the case where only some packets are lost from one or more channels. Several steps to achieve high performance concealments are done with the received packets. Results show the promising performance with very low redundancy for both the balanced and unbalanced channel cases. Generating four descriptions make it more adapted to multi-path scenarios.

关键词： multiple description coding error concealment error resilience

来源：评论

学校读者我要写书评

暂无评论

On scalable lossless video coding based on sub-pixel accurate MCTF

On scalable lossless video coding based on sub-pixel accurat...

引用

conferenceon visual communications and image processing 2006

作者： Yea, S Pearlman, WA Rensselaer Polytech Inst Dept Elect Comp & Syst Engn Ctr Image Proc Res 110 8th St Troy NY 12180 USA

ISBN: (纸本)0819461172

We propose two approaches to scalable lossless coding of motion video. They achieve SNR-scalable bitstream up to lossless reconstruction based upon the subpixel-accurate MCTF-based wavelet video coding. The first approach is based upon a two-stage encoding strategy where a lossy reconstruction layer is augmented by a following residual layer in order to obtain (nearly) lossless reconstruction. The key advantages of our approach include an 'on-the-fly' determination of bit budget distribution between the lossy and the residual layers, freedom to use almost any progressive lossy video coding scheme as the first layer and an added feature of near-lossless compression. The second approach capitalizes on the fact that we can maintain the invertibility of MCTF with an arbitrary sub-pixel accuracy even in the presence of an extra truncation step for lossless reconstruction thanks to the lifting implementation. Experimental results show that the proposed schemes achieve compression ratios not obtainable by intra-frame coders such as Motion JPEG-2000 thanks to their inter-frame coding nature. Also they are shown to outperform the state-of-the-art non-scalable inter-frame coder H.264 (JM) lossless mode, with the added benefit of bitstream embeddedness.

关键词： lossless video compression MCTF lifting scheme scalable video coding sub-pixel accuracy

来源：评论

学校读者我要写书评

暂无评论

Disparity estimation using edge model for stereo video compression

Disparity estimation using edge model for stereo video compr...

引用

conferenceon visual communications and image processing 2006

作者： Kim, HJ Lee, YG Cho, KH Ra, JB Korea Adv Inst Sci & Technol Dept Elect Engn & Comp Sci 373-1 Guseong Dong Taejon 305701 South Korea

ISBN: (纸本)0819461172

Stereo video becomes an important issue with the developments of 3D display technologies. While a stereo system provides the perception of 3D depth, the amount of data for stereo video may be doubled compared to mono video. So an efficient stereo video coding technique is essential. Since the stereo video is taken from the same object in the two different views, most of objects in a stereo pair are translated only to the horizontal direction, while objects in subsequent frames of a mono video can be translated to an arbitrary direction, rotated, and zoomed. Hence, unlike in the mono video, the disparity in a stereo pair can be well estimated by a translational motion or disparity if the object boundary is exactly described. In this paper, we propose an efficient disparity estimation scheme based on a edge model describing object boundary in a block, and apply the estimated disparity to stereo video compression. In addition, a disparity regularization scheme, which is proper for the edge model, is proposed to reduce the bits required for coding the block motion vectors and disparity values. It has been found that the proposed algorithms significantly improve the coding efficiency of stereo video sequences.

关键词： disparity estimation stereo video coding stereo pair stereoscopic image

来源：评论

学校读者我要写书评

暂无评论

A wavelet-based two-stage near-lossless coder with L∞-error scalability

A wavelet-based two-stage near-lossless coder with L∞-error...

引用

conferenceon visual communications and image processing 2006

作者： Yea, S Pearlman, WA Rensselaer Polytech Inst Dept Elect Comp & Syst Engn Ctr Image Proc Res 110 8th St Troy NY 12180 USA

ISBN: (纸本)0819461172

We present a wavelet-based near-lossless coder with L-infinity-error scalability. The method presented consists of a wavelet-based lossy layer encoder followed by multiple stages of residual refinements for L-infinity-error scalability. We introduce a successive refinement scheme in L-infinity-error sense for residual layers reminiscent of popular set-partitioning algorithms for embedded coding. The initial near-lossless error bound is attained by our previously proposed two-stage scheme which determines the bit-rate for the lossy layer 'on-the-fly' without any iteration. The resulting residual which is defined by the difference between the original and the initial near-lossless reconstruction is then further refined in L-infinity-error sense up to lossless reconstruction. This scheme provides a combination of L-2-error embedded lossy reconstruction up to an automatically determined high-fidelity plus optional layers of scalable L-2-error. This may turn out to be particularly useful for scalable archival applications where the fidelity of reconstructions on the high-bit end needs to be strictly controlled.

关键词： near-lossless compression lossless compression lossy-to-lossless error-level embedding successive refinement

来源：评论

学校读者我要写书评

暂无评论

Aliasing reduction via frequency roll-off for scalable image/video coding

Aliasing reduction via frequency roll-off for scalable image...

引用

conferenceon visual communications and image processing 2006

作者： Wu, YJ Woods, JW Rensselaer Polytech Inst Ctr Image Proc Res Troy NY 12180 USA

ISBN: (纸本)0819461172

The extracted low resolution video from a motion compensated 3-D subband/wavelet scalable video coder is unnecessarily sharp and sometimes contains significant aliasing, compared to that by the MPEG4 lowpass filter. In this paper, we propose a content adaptive method for aliasing reduction in subband/wavelet scalable video coding. We try to make the low resolution frame (LL subband) visually similar to that of the MPEG4 decimation filter through frequency roll-off. Scaling of the subbands is introduced to make the variances of the subbands comparable in these two cases. Thanks to the embedded properties of the EZBC coder, we can achieve the needed scaling of energies in each subband by sub-bitplane shift in the extractor and coefficient scaling in the decoder. An analysis is presented for the relationship between sub-bitplane shift and scaling, which shows that our selected sub-bitplane shift works well for high to medium bitrates. Two different energy-matching structures, i.e. a dyadic decomposition and non-dyadic decomposition, are proposed. The first dyadic method has low complexity but low accuracy for energy matching, while the second non-dyadic method is more accurate for energy matching but has higher analysis/synthesis complexity. The first scheme introduces no PSNR loss for full resolution video, while the second one introduces a slight PSNR loss for full resolution. due to our omission of interband context modeling in this case. Both methods offer substantial PSNR gain for lower spatial resolution, as well as substantial reduction in visible aliasing.

关键词： scalable video coding aliasing reduction motion compensated temporal filtering frequency roll-off

来源：评论

学校读者我要写书评

暂无评论

A practical approach to super-resolution

A practical approach to super-resolution

引用

conferenceon visual communications and image processing 2006

作者： Farsiu, S Elad, M Milanfar, P Univ Calif Santa Cruz Dept Elect Engn Santa Cruz CA 95064 USA

ISBN: (纸本)0819461172

Theoretical and practical limitations usually constrain the achievable resolution of any imaging device. Super-Resolution (SR) methods are developed through the years to go beyond this limit by acquiring and fusing several low-resolution (LR) images of the same scene, producing a high-resolution (HR) image. The early works on SR, although occasionally mathematically optimal for particular models of data, and noise, produced poor results when applied to real images. In this paper, we discuss two of the main issues related to designing a practical SR system, namely reconstruction accuracy and computational efficiency. Reconstruction accuracy refers to the problem of designing a robust SR method applicable to images from different imaging systems. We study a ages from grayscale, color, or color filtered (CFA) cameras. general framework for optimal reconstruction of images The performance of our proposed method is boosted by using powerful priors and is robust to both measurement (e.g. CCD read out noise) and system noise (e.g. motion estimation error). Noting that the motion estimation is often considered a, bottleneck in terms of SR performance, we introduce the concept of "constrained motions" for enhancing the quality of super-resolved images. We show that using such constraints will enhance the quality of the motion estimation and therefore results in more accurate reconstruction of the HR images. We also justify some practical assumptions that greatly reduce the computational complexity and memory requirements of the proposed methods. We use efficient approximation of the Kalman Filter (KF) and adopt a dynamic point of view to the SR problem. Novel methods for addressing these issues are accompanied by experimental results on real data.

关键词： Lawrencium Motion estimation Motion models image processing image stacking image fusion Optical filters Cameras Data modeling Samarium

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11页 << < 1 2 3 4 5 6 7 8 9 10 > >>

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：