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1. (WO2019067934) SYSTEM AND METHOD OF FEATURE DESCRIPTOR PROCESSING
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Pub. No.: WO/2019/067934 International Application No.: PCT/US2018/053481
Publication Date: 04.04.2019 International Filing Date: 28.09.2018
IPC:
G06K 9/46 (2006.01) ,G06K 9/00 (2006.01) ,G06T 1/20 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36
Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46
Extraction of features or characteristics of the image
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1
General purpose image data processing
20
Processor architectures; Processor configuration, e.g. pipelining
Applicants:
QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
GAN, Kim-Chyan; US
ZENG, Mao; US
PLONDKE, Erich; US
Agent:
TOLER, Jeffrey G.; US
MOORE, Jason L.; US
ROBERTSON, Jason E.; US
PAREKH, Aakash S.; US
Priority Data:
16/144,33127.09.2018US
62/564,74228.09.2017US
Title (EN) SYSTEM AND METHOD OF FEATURE DESCRIPTOR PROCESSING
(FR) SYSTÈME ET PROCÉDÉ DE TRAITEMENT DE DESCRIPTEUR DE CARACTÉRISTIQUE
Abstract:
(EN) A method of generating a feature descriptor includes determining a first output histogram of an input by processing a first group of pixels of the input to determine first contributions to bins of the first output histogram. The input image including gradient orientation values and gradient magnitude values of a portion of an image that is in a region of a detected feature. After processing the first group of pixels, the method includes determining a second output histogram of the input by processing a second group of pixels of the input to determine second contributions to bins of the second output histogram.
(FR) L'invention concerne un procédé de génération d'un descripteur de caractéristique consistant à déterminer un premier histogramme de sortie d'une entrée par traitement d'un premier groupe de pixels de l'entrée pour déterminer des premières contributions à des compartiments du premier histogramme de sortie. L'image d'entrée comprend des valeurs d'orientation de gradient et des valeurs d'amplitude de gradient d'une partie d'une image qui se trouve dans une région d'une caractéristique détectée. Après le traitement du premier groupe de pixels, le procédé consiste à déterminer un second histogramme de sortie de l'entrée par traitement d'un second groupe de pixels de l'entrée pour déterminer des secondes contributions à des compartiments du second histogramme de sortie.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)