MX373497B - Método y dispositivo para extraer una característica. - Google Patents

Método y dispositivo para extraer una característica.

Info

Publication number
MX373497B
MX373497B MX2016003738A MX2016003738A MX373497B MX 373497 B MX373497 B MX 373497B MX 2016003738 A MX2016003738 A MX 2016003738A MX 2016003738 A MX2016003738 A MX 2016003738A MX 373497 B MX373497 B MX 373497B
Authority
MX
Mexico
Prior art keywords
image
feature
extracting
frequency domain
hog
Prior art date
Application number
MX2016003738A
Other languages
English (en)
Other versions
MX2016003738A (es
Inventor
Zhijun Chen
Fei Long
Tao Zhang
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
Publication of MX373497B publication Critical patent/MX373497B/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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 OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

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 Método y dispositivo para extraer una característica. MX373497B (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 (2)

Publication Number Publication Date
MX2016003738A MX2016003738A (es) 2018-06-22
MX373497B true MX373497B (es) 2020-04-27

Family

ID=56482145

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016003738A MX373497B (es) 2015-11-25 2015-12-29 Método y dispositivo para extraer una característica.

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) MX373497B (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
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ITVI20120041A1 (it) * 2012-02-22 2013-08-23 St Microelectronics Srl Rilevazione di caratteristiche di un'immagine
BR112015004867B1 (pt) 2012-09-05 2022-07-12 Element, Inc. Sistema de prevenção de mistificação de identidade
KR101407070B1 (ko) 2012-09-28 2014-06-12 한국전자통신연구원 영상기반 사람 검출을 위한 특징 추출 방법 및 장치
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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
RU2016110721A (ru) 2017-09-28
US10297015B2 (en) 2019-05-21
US20170148147A1 (en) 2017-05-25
JP2018504729A (ja) 2018-02-15
WO2017088249A1 (zh) 2017-06-01
JP6378453B2 (ja) 2018-08-22
CN105654093B (zh) 2018-09-25
KR101754046B1 (ko) 2017-07-04
KR20170074214A (ko) 2017-06-29
EP3173976A1 (en) 2017-05-31
CN105654093A (zh) 2016-06-08
RU2632578C2 (ru) 2017-10-06
MX2016003738A (es) 2018-06-22

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