公开(公告)号：US20210092376A1

公开(公告)日：2021-03-25

申请号：US17028492

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Alican Nalci ,  Hilmi Enes Egilmez ,  Yung-Hsuan Chao ,  Muhammed Zeyd Coban ,  Hongtao Wang ,  Marta Karczewicz

IPC: H04N19/119 ,  H04N19/46 ,  H04N19/176 ,  H04N19/103 ,  H04N19/18

Abstract: A video decoder may be configured to determine whether a block of video data is to be further partitioned based on the size of the block of video data and a lossless coding flag. A video decoder may decode a lossless coding flag for a block of video data, wherein the block of video data is in a picture that includes both lossy coded blocks and lossless coded blocks, determine that the lossless coding flag indicates a lossless coding mode for the block, and partition the block into sub-blocks based on a size of the block and the determination of the lossless coding mode.

公开(公告)号：US10904548B2

公开(公告)日：2021-01-26

申请号：US16704995

申请日：2019-12-05

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Muhammed Zeyd Coban

IPC: H04N19/44 ,  H04N19/70 ,  G06F17/18 ,  H04N19/13 ,  H04N19/176 ,  H04N19/46

Abstract: A video coder may be configured to determine a value for a zero parameter based on the Rice parameter, wherein the value for the zero parameter identifies a coded value that corresponds to a coefficient level of zero; receive a first coded value for a first coefficient of the second set of coefficients; and based on the value for the zero parameter and the first coded value for the first coefficient, determine a level for the first coefficient.

公开(公告)号：US20190253732A1

公开(公告)日：2019-08-15

申请号：US16271065

申请日：2019-02-08

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N19/597 ,  H04N19/593 ,  H04N19/176 ,  H04N19/105 ,  H04N5/232

Abstract: A video coder may determine reference samples based on a location of a current block of a current picture of the 360-degree video data and a packing arrangement that defines an arrangement of a plurality of regions in the current picture. The current picture is in a projected domain and each respective region of the plurality of regions is a respective face defined by a projection of 360-degree video data. The regions are arranged in the current picture according to the packing arrangement. Based on the location of the current block being at a border of the first region that is adjacent to the second region and there being a discontinuity at the border due to the packing arrangement, the reference samples are samples of the current picture that spatially neighbor the current block in a spherical domain and not in the projected domain.

公开(公告)号：US20190253622A1

公开(公告)日：2019-08-15

申请号：US16270275

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Fnu Hendry ,  Marta Karczewicz

IPC: H04N5/232 ,  H04N19/597 ,  H04N19/82

CPC classification number: H04N5/23238 ,  H04N19/597 ,  H04N19/82

Abstract: An example method includes, receiving an encoded picture of 360-degree video data, the encoded picture of 360-degree video data being arranged in packed faces obtained from a projection of a sphere of the 360-degree video data; decoding the picture of encoded 360-degree video data to obtain a reconstructed picture of 360-degree video data, the reconstructed picture of 360-degree video data being arranged in the packed faces; padding the reconstructed picture of 360-degree video data to generate a padded reconstructed picture of 360-degree video data; in-loop filtering the padded reconstructed picture of 360-degree video data to generate a padded and filtered reconstructed picture of 360-degree video data; and storing the padded and filtered reconstructed picture of 360-degree video data in a reference picture memory for use in predicting subsequent pictures of 360-degree video data.

公开(公告)号：US20190007679A1

公开(公告)日：2019-01-03

申请号：US16025729

申请日：2018-07-02

Applicant: QUALCOMM Incorporated

Inventor： Muhammed Zeyd Coban ,  Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N19/115 ,  H04N19/597 ,  H04N19/51 ,  H04N19/96 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/115 ,  G06T15/205 ,  H04N19/105 ,  H04N19/117 ,  H04N19/134 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51 ,  H04N19/563 ,  H04N19/597 ,  H04N19/85 ,  H04N19/88 ,  H04N19/96

Abstract: This disclosure describes techniques for generating reference frames packed with extended faces from a cubemap projection or adjusted cubemap projection of 360-degree video data. The reference frames packed with the extended faces may be used for inter-prediction of subsequent frames of 360-degree video data.

公开(公告)号：US09807407B2

公开(公告)日：2017-10-31

申请号：US14557049

申请日：2014-12-01

Applicant: QUALCOMM Incorporated

Inventor： Siping Tao ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N19/433 ,  H04N19/58 ,  H04N19/423 ,  H04N19/573 ,  H04N19/164 ,  H04N19/172 ,  H04N19/577 ,  H04N19/154 ,  H04N19/105 ,  H04N19/152 ,  H04N19/51

CPC classification number: H04N19/433 ,  H04N19/105 ,  H04N19/152 ,  H04N19/164 ,  H04N19/172 ,  H04N19/423 ,  H04N19/51 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58

Abstract: Techniques are described where a device that includes a video decoder outputs information identifying a picture to a device that includes a video encoder. The video encoder may determine pictures that could have been used to inter-prediction encode the identified picture and/or pictures following the identified picture in coding order. The video encoder may inter-prediction encode a current picture based on one or more of the determined pictures and/or the identified picture.

公开(公告)号：US09654772B2

公开(公告)日：2017-05-16

申请号：US13744087

申请日：2013-01-17

Applicant: Qualcomm Incorporated

Inventor： Liwei Guo ,  Muhammed Zeyd Coban ,  Xianglin Wang ,  Marta Karczewicz

IPC: H04N7/12 ,  H04N19/50 ,  H03M7/40 ,  H04N19/13 ,  H04N19/60 ,  H04N19/91 ,  H04N19/21

CPC classification number: H04N19/50 ,  H03M7/4018 ,  H04N19/13 ,  H04N19/21 ,  H04N19/60 ,  H04N19/91

Abstract: Techniques for coding data, such as, e.g., video data, include coding a first syntax element, conforming to a particular type of syntax element, of a first slice of video data, conforming to a first slice type, using an initialization value set. The techniques further include coding a second syntax element, conforming to the same type of syntax element, of a second slice of video data, conforming to a second slice type, using the same initialization value set. In this example, the first slice type may be different from the second slice type. Also in this example, at least one of the first slice type and the second slice type may be a temporally predicted slice type. For example, the at least one of the first and second slice types may be a unidirectional inter-prediction (P) slice type, or a bi-directional inter-prediction (B) slice type.

公开(公告)号：US09264706B2

公开(公告)日：2016-02-16

申请号：US13828173

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Vadim Seregin ,  Xianglin Wang ,  Muhammed Zeyd Coban

IPC: H04N19/70 ,  H04N19/13 ,  H04N19/463 ,  H04N19/103 ,  H03M7/30

CPC classification number: H04N19/103 ,  H03M7/30 ,  H04N19/13 ,  H04N19/463 ,  H04N19/70

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。 该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，至少具有CABAC处理的旁路编码模式的参考索引值的另一个bin，并且对参考进行二值化 指数值

公开(公告)号：US09247258B2

公开(公告)日：2016-01-26

申请号：US13660635

申请日：2012-10-25

Applicant: Qualcomm Incorporated

Inventor： Muhammed Zeyd Coban ,  Ye-Kui Wang ,  Marta Karczewicz

IPC: H04N19/174 ,  H04N19/105 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/11

CPC classification number: H04N19/174 ,  H04N19/105 ,  H04N19/11 ,  H04N19/159 ,  H04N19/172 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70

Abstract: A video coder can control in-picture prediction across slice boundaries within a picture. In one example, a first syntax element can control if in-picture prediction across slice boundaries for slices of a picture. If in-picture prediction across slice boundaries is enabled for the picture, then a second syntax element can control, for an individual slices, if in-picture prediction across slice boundaries is enabled for the slice.

Abstract translation: 视频编码器可以控制图像内的切片边界的图像内预测。 在一个示例中，第一语法元素可以控制图片切片的切片边界中的图像内预测。 如果片段边界上的图像间预测被启用用于图像，则第二语法元素可以针对各个切片来控制切片边界上的图像间预测是否对切片启用。

公开(公告)号：US20130272377A1

公开(公告)日：2013-10-17

申请号：US13828173

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Marta KARCZEWICZ ,  Vadim SEREGIN ,  Xianglin WANG ,  Muhammed Zeyd Coban

IPC: H04N7/26 ,  H03M7/30

CPC classification number: H04N19/103 ,  H03M7/30 ,  H04N19/13 ,  H04N19/463 ,  H04N19/70

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。 该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，至少具有CABAC处理的旁路编码模式的参考索引值的另一个bin，并且对参考进行二值化 指数值