MX360590B - Método y dispositivo para extracción de características. - Google Patents

Método y dispositivo para extracción de características.

Info

Publication number
MX360590B
MX360590B MX2016003767A MX2016003767A MX360590B MX 360590 B MX360590 B MX 360590B MX 2016003767 A MX2016003767 A MX 2016003767A MX 2016003767 A MX2016003767 A MX 2016003767A MX 360590 B MX360590 B MX 360590B
Authority
MX
Mexico
Prior art keywords
image
feature extraction
hog
feature
extracting
Prior art date
Application number
MX2016003767A
Other languages
English (en)
Other versions
MX2016003767A (es
Inventor
Zhang Tao
Chen Zhijun
Long Fei
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 MX2016003767A publication Critical patent/MX2016003767A/es
Publication of MX360590B publication Critical patent/MX360590B/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
    • G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
    • G06V10/462—Salient features, e.g. scale invariant feature transforms [SIFT]
    • G06V10/464—Salient features, e.g. scale invariant feature transforms [SIFT] using a plurality of salient features, e.g. bag-of-words [BoW] representations
    • 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
    • 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
    • G06V10/507—Summing image-intensity values; Histogram projection analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F18/00—Pattern recognition
    • G06F18/20—Analysing
    • G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
    • G06F18/213—Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods
    • G06F18/2136—Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods based on sparsity criteria, e.g. with an overcomplete basis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/77—Processing image or video features in feature spaces; using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]; Blind source separation
    • G06V10/7715—Feature extraction, e.g. by transforming the feature space, e.g. multi-dimensional scaling [MDS]; Mappings, e.g. subspace methods
    • 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
    • G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
    • G06V10/469—Contour-based spatial representations, e.g. vector-coding
    • G06V10/473—Contour-based spatial representations, e.g. vector-coding using gradient analysis
    • 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
    • G06V10/513—Sparse representations

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Evolutionary Computation (AREA)
  • Artificial Intelligence (AREA)
  • Data Mining & Analysis (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Databases & Information Systems (AREA)
  • Computing Systems (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Evolutionary Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Image Analysis (AREA)
  • Probability & Statistics with Applications (AREA)

Abstract

Un método y dispositivo para extracción de característica se proveen en la descripción, que pertenece al campo técnico de procesamiento de imagen. El método para extracción de característica puede comprender: dividir la imagen en varios bloques, cada bloque comprendiendo varias celdas; realizar descomposición de señal escasa para que cada celda obtenga un vector escaso correspondiente a cada celda; extraer la característica de Histograma de Gradiente Orientado (HOG) de la imagen de acuerdo con los vectores escasos. Al extraer la característica de HOG de la imagen descompuesta por señal escasa, se resuelve el problema de que la relación y exactitud de detección es relativamente baja en reconocimiento de patrón debido al cálculo directo del dominio de espacio de la imagen en el proceso de característica de extracción de HOG; se logra el efecto de que la relación y exactitud de detección es mejorada en reconocimiento de patrón al extraer la característica de HOG en el dominio de frecuencia. [Figura 1].
MX2016003767A 2015-11-25 2015-12-29 Método y dispositivo para extracción de características. MX360590B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510827753.4A CN105654092B (zh) 2015-11-25 2015-11-25 特征提取方法及装置
PCT/CN2015/099312 WO2017088250A1 (zh) 2015-11-25 2015-12-29 特征提取方法及装置

Publications (2)

Publication Number Publication Date
MX2016003767A MX2016003767A (es) 2017-07-31
MX360590B true MX360590B (es) 2018-11-08

Family

ID=56481853

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016003767A MX360590B (es) 2015-11-25 2015-12-29 Método y dispositivo para extracción de características.

Country Status (8)

Country Link
US (1) US10282637B2 (es)
EP (1) EP3173978A1 (es)
JP (1) JP2018507495A (es)
KR (1) KR101756605B1 (es)
CN (1) CN105654092B (es)
MX (1) MX360590B (es)
RU (1) RU2635267C2 (es)
WO (1) WO2017088250A1 (es)

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CN106408086A (zh) * 2016-09-12 2017-02-15 上海影城有限公司 用于图像优化的深度学习神经网络处理方法及系统
CN108460899A (zh) * 2017-02-20 2018-08-28 深圳怡化电脑股份有限公司 一种图像特征识别方法和装置
CN108182442B (zh) * 2017-12-29 2022-03-15 惠州华阳通用电子有限公司 一种图像特征提取方法
CN109522910B (zh) * 2018-12-25 2020-12-11 浙江商汤科技开发有限公司 关键点检测方法及装置、电子设备和存储介质
CN111167731B (zh) * 2019-10-23 2022-11-08 武汉库柏特科技有限公司 一种产品分拣方法、产品分拣系统和智能分拣机器人
CN111914741B (zh) * 2020-07-30 2024-04-19 云知声智能科技股份有限公司 房产证识别方法、装置和设备

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Also Published As

Publication number Publication date
RU2016110719A (ru) 2017-09-28
CN105654092B (zh) 2019-08-30
CN105654092A (zh) 2016-06-08
MX2016003767A (es) 2017-07-31
US10282637B2 (en) 2019-05-07
RU2635267C2 (ru) 2017-11-09
EP3173978A1 (en) 2017-05-31
JP2018507495A (ja) 2018-03-15
WO2017088250A1 (zh) 2017-06-01
KR101756605B1 (ko) 2017-07-10
KR20170074215A (ko) 2017-06-29
US20170147899A1 (en) 2017-05-25

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