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

1,039 篇 期刊文献
744 篇 会议
17 篇 学位论文
1 册 图书

馆藏范围

1,801 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

627 篇 医学
- 482 篇 基础医学(可授医学...
- 400 篇 临床医学
- 77 篇 医学技术（可授医学...
- 74 篇 特种医学
- 6 篇 公共卫生与预防医...
538 篇 工学
- 279 篇 计算机科学与技术...
- 263 篇 电气工程
- 108 篇 信息与通信工程
- 48 篇 软件工程
- 45 篇 控制科学与工程
- 35 篇 电子科学与技术（可...
- 15 篇 机械工程
- 14 篇 测绘科学与技术
- 10 篇 仪器科学与技术
- 10 篇 生物医学工程（可授...
- 9 篇 网络空间安全
374 篇 理学
- 250 篇 生物学
- 65 篇 物理学
- 13 篇 科学技术史(分学科...
- 12 篇 数学
- 9 篇 地球物理学
- 7 篇 化学
325 篇 教育学
- 323 篇 心理学(可授教育学...
51 篇 农学
- 8 篇 作物学
36 篇 哲学
- 32 篇 哲学
31 篇 管理学
- 22 篇 管理科学与工程(可...
- 11 篇 图书情报与档案管...
18 篇 文学
- 11 篇 外国语言文学
- 6 篇 新闻传播学
12 篇 法学
- 10 篇 社会学
4 篇 艺术学
2 篇 历史学
2 篇 军事学

主题

1,801 篇 predictive codin...
253 篇 image coding
158 篇 decoding
130 篇 predictive model...
110 篇 quantization
105 篇 speech coding
103 篇 bit rate
96 篇 encoding
94 篇 video compressio...
89 篇 video coding
86 篇 transform coding
63 篇 data compression
60 篇 image reconstruc...
59 篇 motion estimatio...
56 篇 active inference
56 篇 pixel
52 篇 vector quantizat...
48 篇 perception
48 篇 entropy
45 篇 linear predictiv...

机构

8 篇 school of electr...
8 篇 department of el...
8 篇 ucl inst neurol ...
8 篇 ucl wellcome tru...
7 篇 radboud univ nij...
7 篇 northeastern uni...
7 篇 ucl wellcome tru...
7 篇 univ calif santa...
7 篇 laureate inst br...
6 篇 bell laboratorie...
6 篇 kings coll londo...
5 篇 bell laboratorie...
5 篇 ucl inst cognit ...
5 篇 harvard med sch ...
5 篇 massachusetts ge...
4 篇 univ memphis ins...
4 篇 univ calif berke...
4 篇 univ sydney sch ...
4 篇 univ cambridge d...
4 篇 univ sussex sch ...

作者

25 篇 friston karl j.
12 篇 huber-fliflet na...
11 篇 friston karl
11 篇 sterzer philipp
11 篇 vuust peter
10 篇 tani jun
10 篇 zhao haozhen
10 篇 barrett lisa fel...
9 篇 zhang jianping
9 篇 pezzulo giovanni
8 篇 todd juanita
8 篇 corlett philip r...
8 篇 seth anil k.
7 篇 schroeger erich
7 篇 wagemans johan
7 篇 de lange floris ...
7 篇 tsakiris manos
7 篇 malmierca manuel...
7 篇 widmann andreas
7 篇 qin han

语言

1,731 篇 英文
48 篇 其他
15 篇 荷兰文
4 篇 中文
1 篇 德文
1 篇 波兰文
1 篇 葡萄牙文

检索条件"主题词=predictive coding"

共 1801 条记录，以下是321-330 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：

Gradient Difference-predictive coding Network (GD-PredNet): Reducing the Convergence Time for Future Frame Prediction with Infinitesimal Quality Trade-off

Gradient Difference-Predictive Coding Network (GD-PredNet): ...

引用

IEEE Southeastcon

作者： Sai Ranganath Mikkilineni Taylor D. Privat Michael Wayne Totaro Center for Advanced Computer Studies University of Louisiana at Lafayette Lafayette LA USA

Even though future frame prediction in videos is a relatively young unsupervised learning task, it has shown promise by accommodating the networks to effectively learn efficient internal representations in a visual hyperspace. predictive coding Network (PredNet) uses future frame predictions as a learning signal and has a legacy background of unconscious inference, free energy, and predictive coding model of the visual cortex; it is still a relatively young network compared to RNNs, CNNs, and so on. Although Rao and Ballard’s proposed predictive coding (PC) model is aimed at reducing the redundancy within the learned internal representations by a network, and Lotter et al.’s design of the PredNet might not be the ideal replication of the PC model, it still shows promise for learning better less-redundant internal representations than other networks. In this paper, we augment PredNet to enhance its performance in future frame prediction. Additionally, we introduce a new measure known as the gradient difference error (GDE) measure based on the gradient difference loss (GDL) function proposed by Mathieu et al. We do this to adapt the GDL function to the context of PredNet since it uses an implicit loss function besides the explicit loss used during training. Our experimental results show that PredNet, when using a combination of the L1 loss function with GDE or GDL, is faster to converge to the best performance while trading off minimal quality of the predictions within a given training window. In doing so, we transform PredNet into Gradient Difference-PredNet (GD-PredNet), and we aim to encourage increased research in predictive coding and PredNet.

关键词： Training Visualization Measurement uncertainty Transforms predictive coding predictive models Brain modeling

来源：评论

学校读者我要写书评

暂无评论

A speech coding algorithm based on predictive coding

A speech coding algorithm based on predictive coding

引用

Data Compression Conference (DCC)

作者： S. Kwong K.F. Man Department of Computer Science City University of Hong Kong Hong Kong China

Summary form only given. A compression algorithm for high quality speech signal using predictive coding techniques is developed. Code-excited linear predictive coding (CELPC) is one of the key techniques to compress speech signal to a bit-rate around 4.8 Kbps. However, due to the heavy computational requirement in the CELPC and speech signals usually can be divided into two portions: namely the based-band and the high-band frequency range. A hybrid CELPC and voice excited linear predictive coding (VELPC) scheme is developed for speech coding to reduce the complexity of the original CELPC. In the algorithm, a speech signal is firstly divided into two portions, the based-band and high-band respectively, in frequency domain, and then the low portion is coded with CELPC and the high-band portion is coded with VELPC. The test experiments showed this new coder can produce synthesized speech with good quality at a better bit rates than the original CELPC. When using the coding methods for the base-band and the high-band signal, we must decide how to divide the speech signal into two portions. In choosing the bandwidth of the base-band signal, there is a trade-off between the coding quality and the bit rate. In our experiment, the bandwidth of the base-band signal is chosen as one fourth of that of the original speech. Subjective evaluation experiments were conducted to test the performance of the hybrid CELPC and VELPC technique. For speech signal sampled at 8 kHz, a bit rate of 4.0 kbps can be achieved with frame intervals of 23 ms. The experimental results showed that the quality of the synthesized speech using hybrid coding technique at the bit rate of 4.0 kbps was almost the same as that of the CELPC at the bit rate of 4.8 kbps.

关键词： Speech coding Prediction algorithms predictive coding Bit rate Speech synthesis Linear predictive coding Testing Signal synthesis Bandwidth Compression algorithms

来源：评论

学校读者我要写书评

暂无评论

A HARDWARE-FRIENDLY ARCHITECTURE FOR ONBOARD RATE-CONTROLLED predictive coding OF HYPERSPECTRAL AND MULTISPECTRAL IMAGES

A HARDWARE-FRIENDLY ARCHITECTURE FOR ONBOARD RATE-CONTROLLED...

引用

IEEE International Conference on Image Processing

作者： Diego Valsesia Enrico Magli Politecnico di Torino Department of Electronics and Telecommunications

ISBN: (纸本)9781479957521

In this paper we propose an efficient architecture for onboard implementation of rate-controlled predictive lossy compression of hyperspectral and multispectral images. In particular, we consider the recent state-of-the-art rate control algorithm for onboard predictive compression [1], and propose an architecture addressing two fundamental aspects of its hardware implementation. Specifically, this architecture overcomes the serial nature of the algorithm, as well as the large memory requirements of the entropy coding stage, achieving a pipelined implementation suitable for high-throughput onboard implementation, at a negligible cost in terms of coding efficiency.

关键词： Hyperspectral image coding Embedded systems predictive coding Rate control

来源：评论

学校读者我要写书评

暂无评论

Optimized predictive coding Of 5d Light Fields

Optimized Predictive Coding Of 5d Light Fields

引用

IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)

作者： Harini Priyadarshini Hariharan Thorsten Herfet Telecommunications Lab Saarland Informatics Campus Saarland University Saarbrücken Germany

ISBN: (数字)9781728157849

ISBN: (纸本)9781728157856

With the emergence of Light Field (LF) technology, the number of dimensions representing light has once again increased. 4D light fields captured with additional temporal information per ray or as assemblies of rays include the 5 th dimension, namely time and thus produce 5D light fields. This is very crucial when we have moving objects in the scene. In the recent years, research has paved way to several ideas on efficient 4D light field compression. However, techniques for compression and storage for higher dimensions is still an open challenge. In this paper we have introduced a low-complexity predictive coding of 5D light fields by automatic generation of per frame customized coding structure exploiting both spatial and temporal neighbors. Evaluations with HEVC codec shows an increase of more than 1.4 dB gain in quality.

关键词： Video coding Codecs predictive coding Light fields Encoding Gain Videos

来源：评论

学校读者我要写书评

暂无评论

A Switched predictive coding Method for Lossless Video coding

A Switched Predictive Coding Method for Lossless Video Codin...

引用

Indian Conference on Computer Vision, Graphics & Image Processing (ICVGIP)

作者： Anil Kumar Tiwari R V Raja Kumar LNM Institute of Information Technology Jaipur India Indian Institute of Technology Kharagpur Kharagpur India

This paper presents a switched predictive coding method for lossless compression of video. In the proposed method, a set of switched predictors is found by a training process that uses only a small number of successive frames of a video and then the trained predictors are used with a large number of the frames of the video. To find the predictors, the pixels of the successive frames are first classified based on an estimate of activity level in their neighbouring pixels and then LS based feedback type of predictors are estimated for all the pixels belonging to each of the classes. We propose a total of 21 classes, which are obtained by combining the seven slope bins of gradient adjusted predictor (GAP) and three classified temporal contexts. After collecting the predictors for pixels belonging to each of the 21 classes, the best predictor, in terms of minimum zero-order entropy, is chosen to represent the various classes. Simulation results show that the application of the set of the predictors results in competitive performance with the LOPT - one of the best methods in terms of achievable compression ratio. Our method and LOPT has same order of coding complexity while our decoder is computationally very simple as against high complexity of LOPT based decoder.

关键词： predictive coding Video coding Image coding Video compression Flyback transformers Decoding Feedback Amplitude estimation Motion estimation Computer vision

来源：评论

学校读者我要写书评

暂无评论

Multiplexed predictive coding of speech

Multiplexed predictive coding of speech

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： S.V. Andersen G. Kubin Department of Speech Music and Hearing KTH Royal Institute of Technology Stockholm Sweden Institute of Communications and Wave Propagation Graz University of Technology Graz Austria

We present a novel method for predictive coding with application to transmission of speech over packet-switched networks. Our method uses multiplexing to distribute a part of the information about a segment of each speech signal in several data packets while keeping the data packet rate and payload for that part of the information unchanged. We investigate three multiplexing schemes: a packet hopping, a Hadamard multiplexing, and an extension of the Hadamard multiplexing that exploits a nonlinear preprocessing and estimation method. We show by means of formal AB-preference tests that multiplexed predictive coding can lead to coders that are more robust to packet losses than scalar quantization and packet loss concealment according to the G.711 standard.

关键词： predictive coding Speech coding Propagation losses Payloads Quantization Robustness Protocols Signal processing Transmitters Degradation

来源：评论

学校读者我要写书评

暂无评论

Architecture of a digital pixel sensor array using 1-bit Hilbert predictive coding

Architecture of a digital pixel sensor array using 1-bit Hil...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： Milin Zhang Amine Bermak Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong China

ISBN: (纸本)9781424438273

In this paper, the architecture of a digital pixel sensor (DPS) array with an online 1-bit predictive coding algorithm using Hilbert scanning scheme is proposed. The architecture of the sensor array reduces by more than half the silicon area of the DPS by sampling and storing the differential values between the pixel and its prediction, featuring compressed dynamic range and hence requiring limited precision (only 1-bit signed value in the proposed architecture as compared to 8-bit unsigned full precision). Hilbert scanning is used to read-out the pixel's value, hence avoiding discontinuity in the read-out path, which is shown to improve the quality of the reconstructed image. The Hilbert scanning path is all carried out by hardware wire connection without increasing the circuit complexity of the sensor array. Reset pixels are inserted into scanning path to overcome the error accumulation problem inherent in predictive coding. System level simulation results show a PSNR of around 25dB can be reached while using the proposed 1-bit Hilbert predictive coding algorithm. VLSI implementation results illustrate a pixel level implementation featuring a pixel size reduction of 67% with a fill-factor of 40% compared with a standard PWM DPS architecture.

关键词： Sensor arrays predictive coding Prediction algorithms Pulse width modulation Silicon Sampling methods Image coding Dynamic range Pixel Image reconstruction

来源：评论

学校读者我要写书评

暂无评论

Multi-dimensional quantization applied to predictive coding of speech

Multi-dimensional quantization applied to predictive coding ...

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： T. Svendsen ELAB Trondheim Norway

The properties of several multi-dimensional quantizers (VQ, tree and trellis coders) have been investigated. The multi-dimensional quantizers yield a superior distortion performance for direct quantization of stationary sources. Incorporated in a predictive speech coding scheme, NFC, the use of multi-dimensional quantizers improves speech quality noticably. A subjective test indicate that NFC with trellis coding is a promising candidate for speech coding at 16 kbit/s.

关键词： predictive coding Speech coding Vector quantization Adaptive filters Sampling methods Speech processing Iterative methods Design methodology Minimization methods Stochastic processes

来源：评论

学校读者我要写书评

暂无评论

Transform predictive coding of wideband speech signals

Transform predictive coding of wideband speech signals

引用

International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Juin-Hwey Chen Dongmei Wang Speech Coding Research Department AT and T Bell Laboratories Inc. Murray Hill NJ USA AT&T Bell Laboratories Georgia Institute of Technology Atlanta GA USA

ISBN: (纸本)0780331923

This paper presents a novel wideband speech coding algorithm called transform predictive coding (TPC). The main emphasis is on low complexity. TPC uses short-term and long-term prediction to remove the redundancy in speech. The prediction residual is quantized in the frequency domain based on a calculated noise masking threshold. In its simplest form, the TPC coder uses only open-loop quantization and therefore has a low complexity. A 16 kb/s full-duplex, open-loop TPC coder takes only 22% of the CPU load on a 150 MHz SGI Indy workstation and about 34% on a 90 MHz Pentium PC. The speech quality of TPC is almost transparent at 32 kb/s, very good at 24 kb/s, and acceptable at 16 kb/s. In the second half of the paper, we report our recent progress in using closed-loop quantization techniques to improve TPC output speech quality.

关键词： predictive coding Wideband Speech coding Linear predictive coding Quantization Sampling methods Narrowband Workstations Speech processing Application software

来源：评论

学校读者我要写书评

暂无评论

A novel quantization scheme for predictive coding

A novel quantization scheme for predictive coding

引用

International Conference on Signal Processing Proceedings (ICSP)

作者： Tian-Hu Yu Department of Information Engineering Chinese University of Hong Kong New Territories Hong Kong China

ISBN: (纸本)0780329120

In existing predictive image coding systems, a prediction error is quantized based on the criterion to minimize the mean square value of the coding error. With this quantization scheme, the reduction of the coding error is restricted by the number of the quantization levels and the amplitude distribution of the prediction error, and it is hard to locate more coding errors in less visible areas. In this paper, we present a new quantization scheme to improve the performance of the predictive image coding technique. In the proposed predictive coding system, instead of the prediction error, a contrast measure is generated from a predicted value and the original value of the current image pixel, which is then quantized based on an intuitive concept. Thus, a desirable weighting function is introduced in the coding algorithm such that the coding error is adapted by the pixel intensity and its contrast measure.

关键词： Quantization predictive coding Image coding Pixel Statistics Pulse modulation Image resolution Autocorrelation Eyes Robustness

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181页 << < 29 30 31 32 33 34 35 36 37 38 > >>

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：