公开(公告)号：CA2875196A1

公开(公告)日：2013-12-27

申请号：CA2875196

申请日：2013-06-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU

IPC: H04N19/103 ,  H04N19/136 ,  H04N19/146

Abstract: Provided is an image encoding method that uses arithmetic encoding and that comprises the following: a first flag encoding step (S701) for arithmetically encoding a first flag (greater1_flag) indicating whether an absolute value of a processing-object coefficient included in the coefficient block of the processing object is greater than 1; and a second flag encoding step (S702) for arithmetically encoding a second flag (greater2_flag) indicating whether the absolute value of the processing-object coefficient is greater than 2. In the first flag encoding step and the second flag encoding step, it is determined whether there is a coefficient the absolute value of which exceeds a threshold in the coefficient block immediately prior to the coefficient block of the processing object (S711), and depending on the determination results, the context used in the arithmetic encoding of the first flag and the second flag is switched (S712).

公开(公告)号：AU2011250757B2

公开(公告)日：2012-09-06

申请号：AU2011250757

申请日：2011-11-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： LIM CHONG SOON ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI

IPC: H04M1/00

Abstract: A coding method of coding a first picture group and a second picture group that are interlaced and captured at different view points, said coding method comprising: 5 defining an access unit including a picture of the first picture group and a picture of the second picture group that corresponds to the picture of the first picture group; and coding each of the pictures included in the access unit, the access unit being defined in said 10 defining, wherein said defining includes: determining a unit of coding for determining whether the pictures included in the access unit are to be uniformly coded on a per-field basis or on a per-frame basis; and determining a field type for determining whether the pictures are to be 15 uniformly coded as top fields or bottom fields, when it is determined in said determining of a unit of coding that the pictures included in the access unit are to be coded on a per-field basis, said coding includes: coding the picture of the first picture group, using a predictive 20 picture generated from a picture of the first picture group; and coding the picture of the second picture group, using one of (i) a predictive picture generated from a picture of the second picture group and (ii) the predictive picture generated from the picture of the first 25 picture group, within the access unit including the picture of the second picture group, and in said coding, each of the pictures is coded for each access unit in a format determined in said determining of a unit of coding and in said determining of a field type. 2949123_1 (GHMatters) P84360.AU.1 11/11/11 Code view components in access unit Determine reference field-pic flag value S502 Field-pic-flag equal to ""? No 7t Y e s S56S508 Set "0" to reference bottom-field flag brI erfrnc Start processing on each view component in access S510 Start processing on each slice in view component S512 Set fieldpicjflag value in slice header of slice to S514 be equal to reference fieldpic flag value Fieldpicflag equal to ""? e No S520 Set bottomfieldflag value in St1 "O" t o bottom field flag slc haof slice to be equal to reference bottom field-flag value Code slice using field_pic-flag value and S526 bottom-field_flag value Next slice of view component available? S2 Nos Yes Next view component in access unit available?) S530 Nos End

公开(公告)号：AU2011241708B2

公开(公告)日：2015-09-24

申请号：AU2011241708

申请日：2011-04-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： DRUGEON VIRGINIE ,  SHIBAHARA YOUJI ,  NISHI TAKAHIRO ,  SASAI HISAO ,  TANIKAWA KYOKO

IPC: H04N19/11 ,  H04N19/593

Abstract: In a spatial prediction method which can reduce the complexity of spatial prediction, a horizontal gradient (Gy) and a vertical gradient (Gx) between pixels in an adjacent block which is adjacent to a block which is the subject of prediction are acquired, and thus an edge (E) which overlaps with the block which is the subject of prediction is detected (S10); the integer incline of the detected edge is calculated (S11); and for each pixel position in the block which is the subject of prediction, a fractional pixel position (450) which has the calculated integer incline, and is the intersection point between a line (430) which passes through the pixel position (440), and the boundary of the adjacent block is determined (S12); the pixel value of the pixel position (440) for each pixel position in the block which is the subject of prediction is predicted on the basis of a pixel value which has been interpolated by the fractional pixel position (450) determined for said pixel position (S13). The boundary with the adjacent block is the closest row or column to the block which is the subject of prediction, from among the plurality of pixel rows and columns included in the adjacent block.

公开(公告)号：SG11201500612PA

公开(公告)日：2015-04-29

申请号：SG11201500612P

申请日：2013-08-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU ,  TERADA KENGO

Abstract: An image decoding method of decoding, on a per-block basis, a coded image included in a bitstream, includes: performing arithmetic decoding on a current block to be decoded (S101); determining whether or not the current block is at the end of a slice(S103); determining, when it is determined that the current block is not at the end of the slice, whether or not the current block is at the end of a sub-stream which is a structural unit of the image that is different from the slice (S105); and performing arithmetic decoding on a sub-last bit and performing arithmetic decoding termination, when it is determined that the current block is at the end of the sub-stream (S106).

公开(公告)号：MX2013014738A

公开(公告)日：2014-07-16

申请号：MX2013014738

申请日：2013-05-20

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  SHIBAHARA YOUJI ,  SASAI HISAO ,  TANIKAWA KYOKO ,  MATSUNOBU TORU ,  TERADA KENGO

IPC: H04N19/176

Abstract: Se describe un método de codificación de imágenes incluye: (S141) realizar un procesamiento de SAO de muestras en una señal Y, una señal Cb y una señal Cr las cuales están incluidas en un bloque objetivo; (S142) realizar una codificación aritmética en un primer indicador (sao_merge_left_flag) que señala si un parámetro de SAO, el cual indica detalles del procesamiento de SAO, del bloque objetivo es idéntico o no a un parámetro de SAO para el bloque adyacente izquierdo inmediatamente a la izquierda del bloque objetivo; y (S144) realizar una codificación aritmética en el parámetro de SAO para el bloque objetivo, cuando el parámetro de SAO para el bloque objetivo es diferente del parámetro de SAO para el bloque adyacente izquierdo (No en S143). En la codificación aritmética en el primer indicador, un contexto individual se utiliza para realizar la codificación aritmética en el primer indicador para la señal de luminancia, la señal de crominancia Cb y la señal de crominancia Cr.

公开(公告)号：AU2010202485A1

公开(公告)日：2010-08-05

申请号：AU2010202485

申请日：2010-01-19

Applicant: PANASONIC IP CORP AMERICA

Inventor： LIM CHONG SOON ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI

IPC: H04M1/00 ,  H04N13/00 ,  H04N19/00 ,  H04N19/102 ,  H04N19/136 ,  H04N19/146 ,  H04N19/169 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/597 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

Abstract: A coding method includes: defining an access unit (S502 to S508); and coding each of the pictures included in the access unit, for each access unit (S526). The defining (S502 to S508) includes: determining a unit of coding for determining whether the pictures included in the access unit are to be uniformly coded on a per-field basis or on a per-frame basis (S502); and determining a field type for determining whether the pictures are to be uniformly coded as top fields or bottom fields (S504 to S508) when it is determined that the pictures included in the access unit are to be coded on a per-field basis. In the coding (S526), each of the pictures is coded for each access unit in a format determined in the determining of a unit of coding (S526) and in the determining of a field type (S502 to S508).

公开(公告)号：CA2870989C

公开(公告)日：2018-11-20

申请号：CA2870989

申请日：2013-04-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： TOMA TADAMASA ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU ,  TERADA KENGO

IPC: H04N19/46 ,  H04N19/172 ,  H04N19/44

Abstract: An image encoding method of coding one or more units that are included in a picture, including: generating a first flag indicating whether or not a removal time of encoded data by a hypothetical decoder from a buffer for storing the encoded data is set per unit (S221); generating a second flag indicating whether an interval between removal times of the units is constant or arbitrary when the removal time is set per unit (S222); and generating an encoded bitstream including the encoded data, the first flag, and the second flag (S223).

公开(公告)号：BR112013014057A2

公开(公告)日：2016-09-13

申请号：BR112013014057

申请日：2011-12-28

Applicant: PANASONIC IP CORP AMERICA

Inventor： LIM CHONG SOON ,  SASAI HISAO ,  NAING SUE MON THET ,  NISHI TAKAHIRO ,  SUGIO TOSHIYASU ,  WAHADANIAH VIKTOR ,  JING XUAN ,  SHIBAHARA YOUJI

公开(公告)号：MX339141B

公开(公告)日：2016-05-13

申请号：MX2015008554

申请日：2012-06-22

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SASAI HISAO ,  TANIKAWA KYOKO ,  MATSUNOBU TORU

IPC: H04N19/103 ,  G06K9/36

Abstract: Un método de codificación de imágenes de acuerdo con una modalidad de la presente invención comprende un paso de control de contexto (S204) en el cual un contexto que se utiliza para un bloque que es procesado se determina de una pluralidad de contextos. En el paso de control de contexto (S204), si la clasificación de señal de un parámetro de control es un segundo tipo, el contexto se determina utilizando una condición por medio de la cual no se emplea el parámetro de control de un bloque superior (S207). El segundo tipo es "merge_flag", "refi_dx_l0" o "ref_idx_l1", "inter_pred_flag", "mvd_l0" o "mvd_l1"; "no_residual_data_flag"; "intra_chroma_pred_mode"; y "cbf luma", "cbf_cb" o "cbf_cr".

公开(公告)号：AU2012281918B2

公开(公告)日：2016-05-05

申请号：AU2012281918

申请日：2012-07-06

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU

IPC: H04N19/13

Abstract: An image decoding method related to one embodiment of the present invention comprises a context control step (S204) of determining the context to be used for a block to be processed, from among a plurality of contexts, and in this context control step (S204), when the signal type for a control parameter is a third type, the context is determined using a third condition that uses the depth of the hierarchy of a data unit belonging to the control parameter of the block to be processed and does not use the control parameter of an upper block (S213). The third type is one or more of "merge_flag," "ref_idx_l0" or "ref_idx_l1," "inter_pred_flag," "mvd_l0" or "mvd_l1," "intra_chroma_pred_mode," or "cbf_luma," "cbf_cb," or "cbf_cr."