近年来,诞生了一种新的采样模式——压缩感知。
Recently, a new sampling theorem has been proposed-compressed sensing.
本文主要研究了压缩感知技术及其在宽带认知频谱感知中的应用。
This dissertation mainly studies the compressive sensing technology and its application in spectrum sensing for wideband cognitive radio.
根据压缩感知理论,用每帧的少量伪随机投影编码一个视频序列。
According to compressive sensing theory, encoding a video sequence into a few pseudo-random projections of each frame is reasonable due to the sparsity in the interested information.
分析表明此方法具有较高的正确判决概率,且具有压缩感知的优点。
The test results show that the proposed algorithm can achieve high probability of correct judgment with the advantages of compressive sensing.
实验表明,语音信号在基于模板匹配的近似KLT域的压缩感知性能较好。
Simulation results demonstrate that compressed speech signal sensing in the approximate KLT using template matching has good performance.
提出一种基于二维主成份分析(2dpca)和压缩感知的人脸识别方法。
A face recognition method based on 2d Principal Component Analysis (2dpca) and compressive sensing is introduced in this paper.
信号信息处理的新技术压缩感知,提供了认知无线电中宽带频谱检测的新方案。
Compressed sensing is a novel technology in signal information processing. It offers a new wide-band spectrum detection scheme in cognitive radio.
文中将压缩感知、协作频谱感知、数据融合方法结合在一起,提出了一种新型高效协作频谱感知方案。
Combining compressed sensing, cooperative spectrum sensing and data fusion together, this paper presents a new type of efficient cooperative spectrum sensing scheme based on compressed sensing theory.
基于数据降维和压缩感知的图像哈希理论与方法,国家自然科学基金(青年科学基金项目), 2014-2016,主持。
2014-2016, Image Hashing Theories and Methods Based on Data Dimensionality Reduction and Compressive Sensing, National Natural Science Foundation of China (NSFC), PI.
在压缩感知框架下运用正则化正交匹配追踪(ROMP)算法进行图像重构时,迭代次数取值不合适会严重降低重构图像的质量。
The unsuitable iterative number of the Regularized Orthogonal Matching Pursuit (ROMP) algorithm in the framework of Compressive Sensing (CS) may reduce the quality of image reconstruction greatly.
感知信息将被自动的收集、压缩和传输,用于对信息进行基于态势的维护。
Sensed information would be automatically collected, compressed, and forwarded for condition-based maintenance.
这种压缩器旨在利用对XML文档结构的感知,实现比一般文本压缩器更好的压缩比率。
This group of compressors is designed to take advantage of the awareness of the XML document structure to achieve better compression ratios over general text compressors.
根据其对XML文档结构的感知对XML压缩器进行分类的示意图。
Diagram of classification of XML compressors according to their awareness of the structure of XML documents.
然后,给出了一种可对上述三层感知器进行压缩的隐节点的压缩方法,它可以推广到三层以上的感知器和节点激发函数不同的情形。
Then, a method is presented to compress the number of hidden nodes, which can be extended to more than three layer perceptrons and to the case of using different activation functions.
实验表明,该方法简单、高效、安全性能好,且具有较好的不可感知性,对通常的图像处理及JPEG压缩等具有极好的稳健性。
Experimental results show that the proposed technique has good efficiency, security, imperceptibility, highly good robustness to common image processing operation and the JPEG lossy compression.
可感知的实现数据压缩的最佳方式是创建只能由移动客户端及其服务器理解的自定义语言。
The perceivable best way to achieve data compression is to create custom language that is understandable by the mobile client and its server only.
一种提高处理的语音的可理解性和感知质量的语音增强系统,包括频率转换器和频谱压缩器。
A speech enhancement system that improves the intelligibility and the perceived quality of processed speech includes a frequency transformer and a spectral compressor.
一种提高处理的语音的可理解性和感知质量的语音增强系统,包括频率转换器和频谱压缩器。
A speech enhancement system that improves the intelligibility and the perceived quality of processed speech includes a frequency transformer and a spectral compressor.
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