特征提取是计算机视觉和图像处理中的一个概念。它指的是使用计算机提取图像信息,决定每个图像的点是否属于一个图像特征。特征提取的结果是把图像上的点分为不同的子集,这些子集往往属于孤立的点、连续的曲线或者连续的区域。特征的好坏对泛化性能有至关重要的影响。
... 次梯度下降(SUBGRADIENT DESCENT) 特征提取(FEATURE EXTRACTION) 核要领(KERNEL METHODS) ...
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故障特征提取 fault feature extraction ; fault feature
人脸特征提取 Facial Feature Extraction ; face feature extraction
局部特征提取 local feature extraction
形态特征提取 shape character abstraction ; extraction of shape feature ; extraction of morphological features
故障机理及其特征提取 Faults and Feature Extraction
特征提取. feature extraction
特征提取与选择 feature extraction and selection
非参数加权特征提取 NWFE
Feature extraction is the first step in digital image analysis.
特征提取则是要完成图像识别的首要任务。
参考来源 - 炮弹装药疵病自动识别技术In content -based image retrieval, feature extracting is of great importance.
在基于内容的图像检索中,图像特征提取是关键技术之一。
参考来源 - 基于彩色基元特征的图像检索Proposes a line structure features extraction and matching method.
4.提出了一种掌纹线结构特征提取及匹配算法。
参考来源 - 掌纹识别关键技术及算法的研究Feature extraction is a key technology for speech recognition.
特征提取是语音识别过程中关键的一环。
参考来源 - 噪声环境下语音特征提取前端处理及优化帧算法研究The algorithm on character extraction of the television sound is discussed,and a new method of extracting the characteristics of audio data based on the MPEG Audio Layer-1 is given. The hardware design of the system is also elaborated.
着重讨论了电视伴音信号的特征提取算法,给出了一种新的基于MPEG Audio Layer-1的音频数据特征的提取方法,并论述了该系统的硬件设计。
参考来源 - 基于MPEG Audio LayerThis article research work mainly has the following several points:1. In view of the tradition signal processing method which is not suitable for non-steady signals symptom extraction, wavelet packet analysis is adopted in rotating machinery fault symptom extraction.
本文的研究工作主要有如下几点:1.针对传统信号处理方法对旋转机械中非平稳信号的特征提取不足,研究基于小波包分析的旋转机械故障特征提取。
参考来源 - 基于小波分析的旋转机械故障诊断仪的研究与开发Therefore, the LPIRS consists of digital image collection and pre-procession, characters seperation, extracting characteristic and recognizing characters.
因此,车牌智能识别系统主要由图像采集与预处理、车牌区域定位、车牌字符分割、特征提取与字符识别等部分组成。
参考来源 - 高速公路收费系统的车牌智能识别系统At last, the insufficiencies of this system have been discussed. This system can be improved in the aspects of algorithm, characteristic separation and some related functions.
但本研究中在算法设计、特征提取和软件功能等方面也存在不足之处,有待进一步改进。
参考来源 - 细胞图像的分割与计数Image feature detection and subpixel location were basic task of photogrammetry and remote sensing. Through the survey of Image feature methods, a junction detection method based multi-feature was proposed.
在对现有图像特征提取算法研究基础上,提出了一种基于多特征复合的节点特征快速提取算法。
参考来源 - 基于卫星编队遥感图像的对地定位算法研究·2,447,543篇论文数据,部分数据来源于NoteExpress
特征提取是机械状态识别的重要内容。
Feature extraction is important to machine state identification.
特征提取是模式识别中的一个关键问题。
Feature extraction is one of the key problems in pattern recognition system.
路面不平度识别的关键之一是特征提取。
One key of road roughness recognition was feature extrication.
It means that it was isolated and characterized.
意思是,它被提取出来并被描述特征。
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