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1. (WO2018044125) METHOD AND APPARATUS FOR PERFORMING TRANSFORMATION USING LAYERED GIVENS TRANSFORM
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/044125    International Application No.:    PCT/KR2017/009615
Publication Date: 08.03.2018 International Filing Date: 01.09.2017
IPC:
H04N 19/30 (2014.01), H04N 19/124 (2014.01), H04N 19/13 (2014.01)
Applicants: LG ELECTRONICS INC. [KR/KR]; 128, Yeoui-daero, Yeongdeungpo-gu, Seoul 07336 (KR)
Inventors: LI, Bohan; (US).
VOSOUGHI, Arash; (US).
GULERYUZ, Onur G.; (US)
Agent: ROYAL PATENT & LAW OFFICE; 1F., Dowon Bldg., 2072 Nambusunhwan-no, Gwanak-gu, Seoul 08806 (KR)
Priority Data:
62/382,759 01.09.2016 US
Title (EN) METHOD AND APPARATUS FOR PERFORMING TRANSFORMATION USING LAYERED GIVENS TRANSFORM
(FR) PROCÉDÉ ET APPAREIL POUR EFFECTUER UNE TRANSFORMATION À L'AIDE D'UNE TRANSFORMÉE DE GIVENS EN COUCHES
(KO) 레이어드 기븐스 변환을 이용하여 변환을 수행하는 방법 및 장치
Abstract: front page image
(EN)The present invention provides a method for performing transformation using a layered Givens transform (LGT), comprising the steps of: deriving at least one rotation layer and at least one permutation layer on the basis of a given transform matrix (H) and a given error parameter; acquiring a LGT coefficient on the basis of the rotation layer and the permutation layer; and quantizing and entropy-encoding the LGT coefficient, wherein the permutation layer comprises a permutation matrix obtained by permuting a row of an identity matrix.
(FR)La présente invention concerne un procédé de réalisation d'une transformation à l'aide d'une transformée de Givens en couches (LGT), comprenant les étapes consistant: à dériver au moins une couche de rotation et au moins une couche de permutation sur la base d'une matrice de transformée (H) donnée et un paramètre d'erreur donné ; à acquérir un coefficient LGT sur la base de la couche de rotation et de la couche de permutation ; et à quantifier et à coder par entropie le coefficient LGT, la couche de permutation comprenant une matrice de permutation obtenue par permutation d'une ligne d'une matrice d'identité.
(KO)본 발명은, 레이어드 기븐스 변환(Layered Givens Transform)을 이용하여 변환을 수행하는 방법에 있어서, 주어진 변환 행렬(H) 및 에러 파라미터(error parameter)에 기초하여 적어도 하나의 회전 레이어(rotation layer) 및 순열 레이어(permutation layer)를 유도하는 단계; 상기 회전 레이어 및 상기 순열 레이어에 기초하여 LGT(Layered Givens Transform) 계수를 획득하는 단계; 및 상기 LGT 계수에 대해 양자화 및 엔트로피 인코딩을 수행하는 단계를 포함하되, 상기 순열 레이어는 단위 행렬(identity matrix)의 행(row)을 치환함으로써 획득되는 순열 행렬을 포함하는 방법을 제공한다.
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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)