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1. (WO2019045544) METHOD AND DEVICE FOR PERFORMING TRANSFORM USING LAYERED GIVENS TRANSFORM
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Pub. No.: WO/2019/045544 International Application No.: PCT/KR2018/010230
Publication Date: 07.03.2019 International Filing Date: 03.09.2018
IPC:
H04N 19/60 (2014.01) ,H04N 19/14 (2014.01) ,H04N 19/70 (2014.01) ,H04N 19/119 (2014.01)
[IPC code unknown for H04N 19/60][IPC code unknown for H04N 19/14][IPC code unknown for H04N 19/70][IPC code unknown for H04N 19/119]
Applicants:
엘지전자 주식회사 LG ELECTRONICS INC. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero Yeongdeungpo-gu Seoul 07336, KR
Inventors:
구문모 KOO, Moonmo; KR
Agent:
특허법인 로얄 ROYAL PATENT & LAW OFFICE; 서울시 서초구 반포대로 104 서일빌딩 4층 FL. 4 SEOIL Bldg., 104, Banpo-daero, Seocho-gu, Seoul 06648, KR
Priority Data:
62/553,89503.09.2017US
Title (EN) METHOD AND DEVICE FOR PERFORMING TRANSFORM USING LAYERED GIVENS TRANSFORM
(FR) PROCÉDÉ ET DISPOSITIF SERVANT À RÉALISER UNE TRANSFORMÉE AU MOYEN D'UNE TRANSFORMÉE DE GIVENS EN COUCHES
(KO) 레이어드 기븐스 변환을 이용하여 변환을 수행하는 방법 및 장치
Abstract:
(EN) The present invention relates to a method for performing a transform by using a layered givens transform (LGT), the method including: a derivation step for deriving a plurality of rotation layers and at least one permutation layer, wherein the rotation layer includes a permutation matrix and a rotation matrix, and the rotation matrix includes at least one pairwise rotation matrix; a step for acquiring LGT coefficients by using the plurality of rotation layers and the at least one permutation layer; and a step for performing a transform by using the LGT coefficients, wherein the rotation layer can be derived on the basis of edge information specifying a pair to which the at least one pairwise rotation matrix is applied.
(FR) L'invention concerne un procédé permettant de réaliser une transformée au moyen d'une transformée de Givens en couches (LGT), ce procédé comprenant : une étape de calcul destinée à calculer une pluralité de couches de rotation et au moins une couche de permutation, la couche de rotation comprenant une matrice de permutation et une matrice de rotation, et la matrice de rotation comprenant au moins une matrice de rotation par paire; une étape d'acquisition de coefficients LGT au moyen de la pluralité de couches de rotation et de ladite couche de permutation au moins; et une étape de réalisation d'une transformée au moyen des coefficients LGT, la couche de rotation pouvant être calculée en fonction d'informations de bords spécifiant une paire à laquelle ladite matrice de rotation par paire au moins est appliquée.
(KO) 본 발명은, 레이어드 기븐스 변환 (Layered Givens Transform)을 이용하여 변환을 수행하는 방법에 있어서, 복수의 희전 레이어 (rotation layer) 및 적어도 하나의 순열 레이어 (permutation layer)를 유도하는 단계로서, 상기 회전 레이어는 순열 행렬 (permutation matrix) 및 회전 행렬 (rotation matrix)을 포함하고, 상기 회전 행렬은 적어도 하나의 쌍 회전 행렬 (pairwise rotation matrix)을 포함하는, 상기 유도 단계; 상기 복수의 회전 레이어 및 상기 적어도 하나의 순열 레이어를 이용하여 LGT 계수를 획득하는 단계; 및 상기 LGT 계수를 이용하여 변환을 수행하는 단계를 포함하되, 상기 회전 레이어는 상기 적어도 하나의 쌍 회전 행렬이 적용되는 쌍 (pair)을 지시하는 엣지 (edge) 정보에 기초하여 유도될 수 있다.
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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: Korean (KO)
Filing Language: Korean (KO)