公开(公告)号：ES2754056T3

公开(公告)日：2020-04-15

申请号：ES14795710

申请日：2014-10-14

Applicant: QUALCOMM INC

Inventor： RAPAKA KRISHNAKANTH ,  WANG YE-KUI ,  CHEN JIANLE ,  HENDRY FNU

IPC: H04N19/597 ,  H04N19/30 ,  H04N19/44 ,  H04N19/70

Abstract: Un codificador de vídeo (20), que comprende: una unidad de memoria configurada para almacenar una o más imágenes de capa de referencia directa (410) de una o más imágenes actuales (405) en una secuencia (415), en el que la una o más imágenes actuales están asociadas con una capa actual (425), estando la capa actual asociada con una o más capas de referencia directa, y en el que una capa de referencia directa es una capa que puede usarse para la predicción entre capas de otra capa, tal como la capa actual; y un procesador (13) en comunicación con la unidad de memoria y configurado para: determinar que una imagen de capa de referencia directa de una o más imágenes de capa de referencia directa no está restringida para su uso, de modo que la imagen de capa de referencia directa se puede usar, en la predicción entre capas, cuando la imagen de la capa de referencia directa tiene un valor de identificación temporal menor que un umbral predeterminado basado en un valor de identificación temporal máximo asociado con la capa actual; determinar si todas las una o más imágenes de capa de referencia directa de una imagen actual que no están restringidas para uso en la predicción entre capas se incluyen en un conjunto de imágenes de referencia entre capas asociado con la imagen actual; y establecer un indicador asociado con la imagen actual a un primer valor basado en la determinación de que todas las imágenes de capa de referencia directa de la imagen actual que no están restringidas para su uso en la predicción entre capas se incluyen en el conjunto de imágenes de referencia entre capas asociado con la imagen actual; o establecer el indicador en un segundo valor basado en la determinación de que no todas las imágenes de capa de referencia directa de la imagen actual que no están restringidas para su uso en la predicción entre capas se incluyen en el conjunto de imágenes de referencia entre capas asociado con la imagen actual.

公开(公告)号：SG11201910399PA

公开(公告)日：2020-01-30

申请号：SG11201910399P

申请日：2018-06-22

Applicant: QUALCOMM INC

Inventor： CHUANG HSIAO-CHIANG ,  CHEN JIANLE ,  ZHANG KAI ,  LI XIANG ,  KARCZEWICZ MARTA ,  CHEN YI-WEN ,  CHIEN WEI-JUNG

IPC: H04N19/577 ,  H04N19/523 ,  H04N19/57 ,  H04N19/59

Abstract: A device for decoding video data is configured to perform interpolation filtering using an N-tap filter to generate an interpolated search space for a first block of video data; obtain a first predictive block in the interpolated search space; determine that a second block of video data is encoded using a bi-directional inter prediction mode and a bi-directional optical flow (BIO) process; perform an inter prediction process for the second block of video data using the bi-directional inter prediction mode to determine a second predictive block; perform the BIO process on the second predictive block to determine a BIO-refined version of the second predictive block, wherein a number of reference samples used for calculating intermediate values for BIO offsets is limited to a region of (W+N−1)×(H+N−1) integer samples, wherein W and H correspond to a width and height of the second block in integer samples.

公开(公告)号：SG11201907531XA

公开(公告)日：2019-10-30

申请号：SG11201907531X

申请日：2018-03-22

Applicant: QUALCOMM INC

Inventor： KARCZEWICZ MARTA ,  CHEN YI-WEN ,  CHIEN WEI-JUNG ,  CHUANG HSIAO-CHIANG ,  LI XIANG ,  CHEN JIANLE

IPC: H04N19/577

Abstract: ON N N O N O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT D IV o VIVID IID 1001111010110 X1101 Hs (10) International Publication Number WO 2018/175720 Al (51) International Patent Classification: HO4N 19/577 (2014.01) (21) International Application Number: PCT/US2018/023761 (22) International Filing Date: 22 March 2018 (22.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/475,177 22 March 2017 (22.03.2017) US 15/927,854 21 March 2018 (21.03.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: KARCZEWICZ, Marta; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHEN, Yi-Wen; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHIEN, Wei-Jung; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHUANG, Hsiao-Chiang; 5775 Morehouse Drive, San Diego, Califor- nia 92121-1714 (US). LI, Xiang; 10574 Gaylemont Lane, San Diego, California 92130 (US). CHEN, Jianle; 10756 Corte De Tiburon, San Diego, California 92130 (US). (74) Agent: HARDOON, David; Shumaker & Sieffert, P.A., 1625 Radio Drive, Suite 100, Woodbury, Minnesota 55125 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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. (54) Title: CONSTRAINING MOTION VECTOR INFORMATION DERIVED BY DECODER-SIDE MOTION VECTOR DERI- VATION GENERATE A PLURALITY OF DERIVED MOTION VECTORS USING DMVD L100 SELECT A FIRST DERIVED MOTION VECTOR AND A SECOND 102 DERIVED MOTION VECTOR FROM THE PLURALITY OF DERIVED MOTION VECTORS BASED ON A COST METRIC AND DETERMINING WHETHER A CONSTRAINT IS MET DECODE A CURRENT BLOCK USING THE SELECTED FIRST 104 DERIVED MOTION VECTOR AND THE SECOND DERIVED MOTION VECTOR FIG. 16 (57) : Techniques related to decoder-side motion vector derivation (DMVD) are described. For example, this disclosure de- scribes techniques related to applying one or more constraints to motion information, such as a motion vector (MV) derived by DMVD, and/or a MV difference between an initial MV and an MV derived by DMVD. When the constraint is applied to the DMVD, in certain examples, only the derived motion information which meets the constraint is regarded as valid motion information. Conditions may be placed on the constraints. [Continued on next page] WO 2018/175720 Al IMEDIMOMMIDIMANOMOMEIHOMMOVOIMIE (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))

公开(公告)号：SG11201907090WA

公开(公告)日：2019-09-27

申请号：SG11201907090W

申请日：2018-03-13

Applicant: QUALCOMM INC

Inventor： LI XIANG ,  CHEN YI-WEN ,  CHEN JIANLE ,  CHUANG HSIAO-CHIANG ,  CHIEN WEI-JUNG ,  SUN YU-CHEN ,  KARCZEWICZ MARTA

IPC: H04N19/44 ,  H04N19/54

Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 20 September 2018 (20.09.2018) WIP0 I PCT omit VIII °nolo VIII VIII 0111111 oimIE (10) International Publication Number WO 2018/169923 Al 1108 (51) International Patent Classification: H04N 19/44 (2014.01) H04N 19/54 (2014.01) (21) International Application Number: PCT/US2018/022129 (22) International Filing Date: 13 March 2018 (13.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/471,099 14 March 2017 (14.03.2017) US 15/918,789 12 March 2018 (12.03.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: LI, Xiang; 10574 Gaylemont Ln., San Diego, California 92130 (US). CHEN, Yi-Wen; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHEN, Jianle; 10756 Corte De Tiburon, San Diego, California 92121 (US). CHUANG, Hsiao-Chiang; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHIEN, Wei-Jung; 5775 Morehouse Drive, San Diego, Califor- nia 92121-1714 (US). SUN, Yu-Chen; 12519 NE 4th Pl., Bellevue, Washington 98005 (US). KARCZEWICZ, Marta; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: AUSTIN, Shelton W. et al.; Polsinelli LLP, 2049 Century Park East, Suite 2900, Los Angeles, CA 90067 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (54) Title: AFFINE MOTION INFORMATION DERIVATION REFERENCE AFFINElempucre AA'12 evegeria BLOCK OF REFERENCE PICTURE 111 0 1106 CURRENT AFFINE TEMPLATE ‘1104 t*j FIG.11B CURRENT BLOCK (CUR) 1102 00 O C (57) : Techniques and systems are provided for deriving one or more sets of affme motion parameters at a decoder. For example, the decoder can obtain video data from an encoded video bitstream. The video data includes at least a current picture and a reference picture. The decoder can determine a set of affine motion parameters for a current block of the current picture. The set of affme motion parameters can be used for performing motion compensation prediction for the current block. The set of affme motion parameters can be determined using a current affme template of the current block and a reference affme template of the reference picture. In some cases, an encoder can determine a set of affme motion parameters for a current block using a current affme template of the current block and a reference affme template of the reference picture, and can generate an encoded video bitstream that includes a syntax item indicating template matching based affme motion derivation mode is to be used by a decoder for the current block. The [Continued on next page] WO 2018/169923 Al MIDEDIMOMOIDEIREEMOMMIMEHOIMMOVOIMIE 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) encoded video bitstream may not include any affine motion parameters for determining the set of affine motion parameters.

公开(公告)号：ZA201608338B

公开(公告)日：2019-08-28

申请号：ZA201608338

申请日：2016-12-02

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN JIANLE ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

Abstract: A video coder decodes a coding unit (CU) of video data. In decoding the video data, the video coder determines that the CU was encoded using the color space conversion. The video coder determines the initial quantization parameter (QP), determines the final QP that is equal to a sum of the initial QP and a QP offset, and inverse quantizes, based on the final QP, a coefficient block, then reconstructs the CU based on the inverse quantized coefficient blocks.

公开(公告)号：ES2715555T3

公开(公告)日：2019-06-04

申请号：ES16708487

申请日：2016-01-27

Applicant: QUALCOMM INC

Inventor： CHEN JIANLE ,  LIU HONGBIN ,  CHEN YING ,  ZHANG LI ,  LI XIANG ,  ZHAO XIN ,  KARCZEWICZ MARTA

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/186 ,  H04N19/463

Abstract: Un procedimiento de codificación de datos de vídeo, el procedimiento que comprende: determinar (100), dentro de un codificador, una señal residual predicha de una componente de color objetivo de un bloque actual en función de uno o más parámetros de un modelo lineal y de una señal residual de una componente de color de origen del bloque actual; determinar (102), dentro del codificador, una señal residual restante para la componente de color objetivo en base a una señal residual de la componente de color objetivo y la señal residual predicha de la componente de color objetivo; codificar (104) los valores de la señal residual restante de la componente de color objetivo; y emitir (106) los valores de la señal residual restante codificados en un flujo de bits de vídeo, en el que determinar una señal residual predicha incluye determinar uno o más parámetros del modelo lineal, en el que la determinación de uno o más parámetros del modelo lineal incluye: (i) determinar un error de predicción en función de los valores de la muestra de referencia de una componente de color objetivo de referencia y los valores de la muestra de referencia de una componente de color de origen de referencia; y (ii) seleccionar valores de los uno o más parámetros del modelo lineal que minimizan el error de predicción, incluyendo la selección obtener uno de los parámetros del modelo lineal al restringir uno de los parámetros del modelo lineal para que esté cerca de un valor de parámetro predefinido, en el que los valores de la muestra de referencia de la componente de color objetivo de referencia y los valores de la muestra de referencia de la componente de color de origen de referencia son las componentes de color primera y segunda, respectivamente, de muestras adyacentes espaciales reconstruidas.

公开(公告)号：PH12019500417A1

公开(公告)日：2019-06-03

申请号：PH12019500417

申请日：2019-02-27

Applicant: QUALCOMM INC

Inventor： CHEN YI-WEN ,  CHIEN WEI-JUNG ,  ZHANG LI ,  SUN YU-CHEN ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N19/52 ,  H04N19/537

Abstract: A video decoder selects a source affine block. The source affine block is an affine-coded block that spatially neighbors a current block. Additionally, the video decoder extrapolates motion vectors of control points of the source affine block to determine motion vector predictors for control points of the current block. The video decoder inserts, into an affine motion vector predictor (MVP) set candidate list, an affine MVP set that includes the motion vector predictors for the control points of the current block. The video decoder also determines, based on an index signaled in a bitstream, a selected affine MVP set in the affine MVP set candidate list. The video decoder obtains, from the bitstream, motion vector differences (MVDs) that indicate differences between motion vectors of the control points of the current block and motion vector predictors in the selected affine MVP set.

公开(公告)号：HUE041798T2

公开(公告)日：2019-05-28

申请号：HUE14712483

申请日：2014-03-05

Applicant: QUALCOMM INC

Inventor： RAPAKA KRISHNAKANTH ,  LI XIANG ,  CHEN JIANLE ,  WANG YE-KUI ,  PU WEI

IPC: H04N19/17 ,  H04N19/33 ,  H04N19/50 ,  H04N19/70 ,  H04N19/82

公开(公告)号：AU2018205783A1

公开(公告)日：2019-05-23

申请号：AU2018205783

申请日：2018-01-04

Applicant: QUALCOMM INC

Inventor： CHEN YI-WEN ,  CHUANG HSIAO-CHIANG ,  LI XIANG ,  ZHANG LI ,  CHIEN WEI-JUNG ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/537 ,  H04N19/577

Abstract: For a bi-directional inter predicted block, a video decoder is configured, using a first MV, to locate a first predictive block in a first reference picture; using a second MV, locate a second predictive block in a second reference picture; for a first sub-block of the first predictive block, determine a first amount of bi-directional optical flow (BIO) motion; determine a first final predictive sub-block for the block of video data based on the first amount of BIO motion; for a second sub-block of the first predictive block, determine a second amount of BIO motion; determine a second final predictive sub-block for the block of video data based on the second amount of BIO motion; and based on the first final predictive sub-block and the second final predictive sub-block, determine a final predictive block for the block of video data.

公开(公告)号：SG11201901632QA

公开(公告)日：2019-04-29

申请号：SG11201901632Q

申请日：2017-10-05

Applicant: QUALCOMM INC

Inventor： CHEN YI-WEN ,  CHIEN WEI-JUNG ,  ZHANG LI ,  SUN YU-CHEN ,  CHEN JIANLE ,  KARCZEWICZ MARTA

IPC: H04N19/52 ,  H04N19/537

Abstract: A video decoder selects a source affine block. The source affine block is an affine-coded block that spatially neighbors a current block. Additionally, the video decoder extrapolates motion vectors of control points of the source affine block to determine motion vector predictors for control points of the current block. The video decoder inserts, into an affine motion vector predictor (MVP) set candidate list, an affine MVP set that includes the motion vector predictors for the control points of the current block. The video decoder also determines, based on an index signaled in a bitstream, a selected affine MVP set in the affine MVP set candidate list. The video decoder obtains, from the bitstream, motion vector differences (MVDs) that indicate differences between motion vectors of the control points of the current block and motion vector predictors in the selected affine MVP set.