MX2016003738A - Metodo y dispositivo para extraer una caracteristica. - Google Patents

Metodo y dispositivo para extraer una caracteristica.

Info

Publication number
MX2016003738A
MX2016003738A MX2016003738A MX2016003738A MX2016003738A MX 2016003738 A MX2016003738 A MX 2016003738A MX 2016003738 A MX2016003738 A MX 2016003738A MX 2016003738 A MX2016003738 A MX 2016003738A MX 2016003738 A MX2016003738 A MX 2016003738A
Authority
MX
Mexico
Prior art keywords
image
frequency domain
feature extraction
feature
hog
Prior art date
Application number
MX2016003738A
Other languages
English (en)
Inventor
Tao Zhang
Zhijun Chen
Fei Long
Original Assignee
Xiaomi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiaomi Inc filed Critical Xiaomi Inc
Publication of MX2016003738A publication Critical patent/MX2016003738A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/50—Extraction of image or video features by performing operations within image blocks; by using histograms, e.g. histogram of oriented gradients [HoG]; by summing image-intensity values; Projection analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/10—Image enhancement or restoration using non-spatial domain filtering
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/431—Frequency domain transformation; Autocorrelation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20021—Dividing image into blocks, subimages or windows
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20048—Transform domain processing
    • G06T2207/20052—Discrete cosine transform [DCT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20048—Transform domain processing
    • G06T2207/20056—Discrete and fast Fourier transform, [DFT, FFT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30024—Cell structures in vitro; Tissue sections in vitro

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Analysis (AREA)

Abstract

En la descripción se proporciona un método y un dispositivo para extraer características, que pertenece al campo técnico del procesamiento de imágenes; el método para extraer características incluye: segmentar una imagen en una pluralidad de bloques, en donde cada bloque comprende una pluralidad de celdas; convertir cada celda de un dominio espacial a un dominio de frecuencia; y extraer una característica de histograma de gradientes orientados (HOG) de la imagen en el dominio de frecuencia; al extraer la característica HOG de la imagen en el dominio de frecuencia, se pueden resolver los problemas de la técnica relacionada de que la relación de detección y la precisión son relativamente bajas en el reconocimiento de patrón, debido al cálculo directo del dominio espacial de la imagen en el procedimiento de extracción de las características de HOG; y se pueden lograr los efectos de mejorar la relación de detección y la precisión en el reconocimiento de patrón por medio de la extracción de las características de HOG en el dominio de frecuencia.
MX2016003738A 2015-11-25 2015-12-29 Metodo y dispositivo para extraer una caracteristica. MX2016003738A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510827886.1A CN105654093B (zh) 2015-11-25 2015-11-25 特征提取方法及装置
PCT/CN2015/099310 WO2017088249A1 (zh) 2015-11-25 2015-12-29 特征提取方法及装置

Publications (1)

Publication Number Publication Date
MX2016003738A true MX2016003738A (es) 2018-06-22

Family

ID=56482145

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016003738A MX2016003738A (es) 2015-11-25 2015-12-29 Metodo y dispositivo para extraer una caracteristica.

Country Status (8)

Country Link
US (1) US10297015B2 (es)
EP (1) EP3173976A1 (es)
JP (1) JP6378453B2 (es)
KR (1) KR101754046B1 (es)
CN (1) CN105654093B (es)
MX (1) MX2016003738A (es)
RU (1) RU2632578C2 (es)
WO (1) WO2017088249A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105654093B (zh) 2015-11-25 2018-09-25 小米科技有限责任公司 特征提取方法及装置
CN107451583A (zh) * 2017-08-03 2017-12-08 四川长虹电器股份有限公司 票据图像特征提取的方法
CN107633226B (zh) * 2017-09-19 2021-12-24 北京师范大学珠海分校 一种人体动作跟踪特征处理方法
CN107832667A (zh) * 2017-10-11 2018-03-23 哈尔滨理工大学 一种基于深度学习的人脸识别方法
CN107516094A (zh) * 2017-10-12 2017-12-26 北京军秀咨询有限公司 一种基于人脸图像处理的人才测评方法
CN111243088A (zh) * 2020-01-08 2020-06-05 长春工程学院 工程地质勘察中的真三维航空遥感地质解译方法及系统

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JPH0757077A (ja) 1993-08-13 1995-03-03 Ricoh Co Ltd 画像処理装置
JPH1056570A (ja) * 1996-08-12 1998-02-24 Fuji Xerox Co Ltd 画像処理装置
US8625861B2 (en) * 2008-05-15 2014-01-07 International Business Machines Corporation Fingerprint representation using gradient histograms
KR101405410B1 (ko) * 2010-10-20 2014-06-24 고려대학교 산학협력단 객체 검출 장치 및 시스템
RU2461017C1 (ru) * 2011-04-15 2012-09-10 Государственное образовательное учреждение высшего профессионального образования "Военная академия войсковой противовоздушной обороны Вооруженных Сил Российской Федерации" имени Маршала Советского Союза А.М. Василевского Способ обнаружения точечных тепловых объектов на сложном атмосферном фоне
CN102254185B (zh) * 2011-07-21 2013-04-17 西安电子科技大学 基于对比度敏感函数的背景杂波量化方法
ITVI20120041A1 (it) * 2012-02-22 2013-08-23 St Microelectronics Srl Rilevazione di caratteristiche di un'immagine
SG11201501691VA (en) 2012-09-05 2015-04-29 Element Inc Biometric authentication in connection with camera-equipped devices
KR101407070B1 (ko) 2012-09-28 2014-06-12 한국전자통신연구원 영상기반 사람 검출을 위한 특징 추출 방법 및 장치
US20140169663A1 (en) * 2012-12-19 2014-06-19 Futurewei Technologies, Inc. System and Method for Video Detection and Tracking
TWI475495B (zh) 2013-02-04 2015-03-01 Wistron Corp 圖像的識別方法、電子裝置與電腦程式產品
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CN104268528B (zh) * 2014-09-28 2017-10-17 中智科创机器人有限公司 一种人群聚集区域检测方法和装置
CN104866865B (zh) * 2015-05-11 2018-03-16 西南交通大学 一种基于dhog和离散余弦变换的接触网平衡线故障检测方法
CN105046224A (zh) * 2015-07-16 2015-11-11 东华大学 基于分块自适应加权梯度方向直方图特征的人脸识别方法
CN105654093B (zh) * 2015-11-25 2018-09-25 小米科技有限责任公司 特征提取方法及装置

Also Published As

Publication number Publication date
JP2018504729A (ja) 2018-02-15
KR20170074214A (ko) 2017-06-29
EP3173976A1 (en) 2017-05-31
WO2017088249A1 (zh) 2017-06-01
RU2632578C2 (ru) 2017-10-06
KR101754046B1 (ko) 2017-07-04
CN105654093B (zh) 2018-09-25
JP6378453B2 (ja) 2018-08-22
CN105654093A (zh) 2016-06-08
US10297015B2 (en) 2019-05-21
RU2016110721A (ru) 2017-09-28
US20170148147A1 (en) 2017-05-25

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