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1. (WO2019009600) IMAGE DECODING METHOD AND APPARATUS USING PROJECTION-TYPE BASED QUANTISATION PARAMETERS IN IMAGE CODING SYSTEM FOR 360-DEGREE VIDEO
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Pub. No.: WO/2019/009600 International Application No.: PCT/KR2018/007542
Publication Date: 10.01.2019 International Filing Date: 04.07.2018
IPC:
H04N 19/597 (2014.01) ,H04N 19/124 (2014.01) ,H04N 19/70 (2014.01)
[IPC code unknown for H04N 19/597][IPC code unknown for H04N 19/124][IPC code unknown for H04N 19/70]
Applicants:
엘지전자 주식회사 LG ELECTRONICS INC. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero, Yeongdeungpo-gu Seoul 07336, KR
Inventors:
이령 LI, Ling; KR
임재현 LIM, Jaehyun; KR
Agent:
인비전 특허법인 ENVISION PATENT & LAW FIRM; 서울시 강남구 테헤란로 124, 5층 5F, 124, Teheran-ro Gangnam-gu Seoul 06234, KR
Priority Data:
62/528,45304.07.2017US
Title (EN) IMAGE DECODING METHOD AND APPARATUS USING PROJECTION-TYPE BASED QUANTISATION PARAMETERS IN IMAGE CODING SYSTEM FOR 360-DEGREE VIDEO
(FR) PROCÉDÉ ET APPAREIL DE DÉCODAGE D'IMAGE UTILISANT DES PARAMÈTRES DE QUANTIFICATION BASÉS SUR UN TYPE DE PROJECTION DANS UN SYSTÈME DE CODAGE D'IMAGE POUR UNE VIDÉO À 360 DEGRÉS
(KO) 360도 비디오에 대한 영상 코딩 시스템에서 프로젝션 타입 기반 양자화 파라미터를 사용한 영상 디코딩 방법 및 장치
Abstract:
(EN) An image decoding method that is performed by a decoding apparatus of the present invention comprises the steps of: receiving 360-degree video information; deriving a projection type of a projected picture based on the 360-degree video information; deriving a weight map of the projected picture based on the projection type; deriving quantisation processing units of the projected picture; deriving DAQP for the respective quantisation processing units based on the weight map; and decoding the respective quantisation processing units based on the DAQP.
(FR) La présente invention concerne un procédé de décodage d'image qui est exécuté par un appareil de décodage qui comprend les étapes consistant à : recevoir des informations vidéo à 360 degrés ; obtenir un type de projection d'une image projetée sur la base des informations vidéo à 360 degrés ; obtenir une carte de pondération de l'image projetée sur la base du type de projection ; obtenir des unités de traitement de quantification de l'image projetée ; obtenir des DAQP pour les unités de traitement de quantification respectives sur la base de la carte de pondération ; et décoder des unités de traitement de quantification respectives sur la base des DAQP.
(KO) 본 발명에 따른 디코딩 장치에 의하여 수행되는 영상 디코딩 방법은 360도 비디오 정보를 수신하는 단계, 상기 360 비디오 정보를 기반으로 프로젝션된 픽처의 프로젝션 타입을 도출하는 단계, 상기 프로젝션 타입을 기반으로 상기 프로젝션된 픽처의 가중치 맵을 도출하는 단계, 상기 프로젝션된 픽처의 양자화 처리 단위들을 도출하는 단계, 상기 가중치 맵을 기반으로 상기 양자화 처리 단위들 각각에 대한 DAQP를 도출하는 단계, 및 상기 DAQP를 기반으로 상기 각 양자화 처리 단위에 대한 디코딩을 수행하는 단계를 포함하는 것을 특징으로 한다.
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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)