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1. (WO2016064045) STAND HEIGHT ESTIMATION SYSTEM AND METHOD BASED ON DIGITAL AERIAL PHOTOS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2016/064045 International Application No.: PCT/KR2015/002318
Publication Date: 28.04.2016 International Filing Date: 11.03.2015
IPC:
G06T 17/05 (2011.01) ,G01C 11/00 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
17
3D modelling for computer graphics
05
Geographic models
G PHYSICS
01
MEASURING; TESTING
C
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
11
Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
Applicants: KOREA FOREST RESEARCH INSTITUTE[KR/KR]; 57, Hoegi-ro, Dongdaemun-gu, Seoul 130-712, KR
Inventors: KIM, Kyoungmin; KR
KIM, Cheolmin; KR
MOON, Geunsoo; KR
Agent: PARK, Chonghan; KR
Priority Data:
10-2014-014187820.10.2014KR
Title (EN) STAND HEIGHT ESTIMATION SYSTEM AND METHOD BASED ON DIGITAL AERIAL PHOTOS
(FR) SYSTÈME ET PROCÉDÉ D'ESTIMATION DE HAUTEUR DOMINANTE SUR LA BASE DE PHOTOS AÉRIENNES NUMÉRIQUES
(KO) 디지털항공사진 기반의 임분고 추정 시스템 및 방법
Abstract:
(EN) The present invention relates to a stand height estimation system and method based on digital aerial photos, which enables a forest interpreter to extract and estimate stand height using aerial photos, which are the most familiar. A stand height estimation device according to the present invention generates an epipolar image from a digital aerial photo, calculates a digital surface model (DSM) from the generated epipolar image, converts the digital surface model into a point cloud and then reclassifies the point cloud to extract a digital terrain model (DTM), and generates a normalized digital surface model (nDSM) including height information of features including tree height by a differential operation of the digital surface model and the digital terrain model.
(FR) La présente invention concerne un système et un procédé d'estimation de hauteur dominante sur la base de photos aériennes numériques, qui permettent à un interpréteur forestier d'extraire et d'estimer la hauteur dominante au moyen de photos aériennes, ce qui est le plus fréquent. Un dispositif d'estimation de hauteur dominante selon la présente invention génère une image épipolaire à partir d'une photo aérienne numérique, calcule un modèle de surface numérique (DSM) à partir de l'image épipolaire générée, convertit le modèle de surface numérique en un nuage de points et reclassifie ensuite le nuage de points afin d'extraire une maquette de paysage numérique (DTM), et génère un modèle de surface numérique normalisé (nDSM) comprenant des informations de hauteur de caractéristiques comprenant une hauteur d'arbres par une opération différentielle du modèle de surface numérique et de la maquette de paysage numérique.
(KO) 본 발명은 디지털항공사진 기반의 임분고(林分高, stand height) 추정 시스템 및 방법에 관한 것으로, 임상 판독자가 가장 익숙한 디지털항공사진을 주요 자료원으로 이용하여 임분고를 추출하여 추정하기 위한 것이다. 본 발명에 따른 임분고 추정 장치가 디지털항공사진으로부터 에피폴라 영상을 생성하고, 생성한 에피롤라 영상으로부터 수치표면모델(DSM, Digital Surface Model)을 산출하고, 수치표면모델을 포인트 클라우드로 변환 후 재분류하여 수치지면모델(DTM, Digital Terrain Model)을 추출한 후, 수치표면모델과 수치지면모델의 차분 연산을 통해 수고(樹高)를 포함한 지형지물의 높이 정보를 포함하는 정규수치표면모델(nDSM, normalized Digital Surface Model)을 생성한다.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, 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: Korean (KO)
Filing Language: Korean (KO)