公开(公告)号：US20140177706A1

公开(公告)日：2014-06-26

申请号：US14085486

申请日：2013-11-20

Applicant: Samsung Electronics Co., LTD

Inventor： Felix C. Fernandes ,  Esmaeil Faramarzi ,  Muhammad Salman Asif ,  Zhan Ma

IPC: G06T3/40 ,  H04N19/124

CPC classification number: G06T3/4053 ,  G06T3/4092 ,  H04N19/463 ,  H04N19/59

Abstract: An image-encoding system that is configured to generate an output stream based on an input image is provided that includes an encoder and a metadata extractor. The encoder is configured to encode a low-resolution image to generate a quantized, low-resolution image. The low-resolution image is generated based on the input image. The metadata extractor is configured to extract super-resolution (SR) metadata from the input image. The output stream comprises the quantized, low-resolution image and the SR metadata. An image-decoding system is configured to receive the output stream. The image-decoding system includes a decoder and an SR processor. The decoder is configured to decode the quantized, low-resolution image to generate a decoded image. The super-resolution processor is configured to perform super-resolution on the decoded image based on the SR metadata to generate a super-resolved image.

Abstract translation: 提供了被配置为基于输入图像生成输出流的图像编码系统，其包括编码器和元数据提取器。 编码器被配置为对低分辨率图像进行编码以生成量化的低分辨率图像。 基于输入图像生成低分辨率图像。 元数据提取器被配置为从输入图像提取超分辨率（SR）元数据。 输出流包括量化的低分辨率图像和SR元数据。 图像解码系统被配置为接收输出流。 图像解码系统包括解码器和SR处理器。 解码器被配置为对量化的低分辨率图像进行解码以生成解码图像。 超分辨率处理器被配置为基于SR元数据在解码图像上执行超分辨率以生成超分辨图像。

公开(公告)号：US11373338B2

公开(公告)日：2022-06-28

申请号：US16732159

申请日：2019-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Esmaeil Faramarzi ,  Madhukar Budagavi

IPC: G06T9/00 ,  G06T3/40 ,  G06T5/00 ,  H04L65/60 ,  H04L65/80

Abstract: An encoding device and a method for point cloud encoding are disclosed. The method includes generating, for a 3D point cloud, an attribute frame and an occupancy map. The method also includes reducing a resolution of the frames over a number of sequential steps, until the frames are a predetermined size. After the frames are reduced to the predetermined size, the method includes increasing the resolution of the frames over the number of sequential steps while adding padding to modify at least some of the pixels in the attribute frame that do not represent points of the 3D point cloud. While the resolution of the attribute frame is incrementally increased, the method includes performing smoothing on the pixels in the attribute frame that do not represent the points of the 3D point cloud. The method additionally includes encoding the frames to generate a bitstream and then transmitting the bitstream.

公开(公告)号：US20220164994A1

公开(公告)日：2022-05-26

申请号：US17532859

申请日：2021-11-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rajan Laxman Joshi ,  Esmaeil Faramarzi ,  Madhukar Budagavi

IPC: G06T9/00 ,  G06T17/20

Abstract: An encoding device, a decoding device, and a method for mesh decoding are disclosed. The method for mesh decoding includes receiving a bitstream. The method also includes decoding a frame that includes pixels from the bitstream. A portion of the pixels of the frame represent geometric locations of vertices of a 3D mesh that are organized into overlapped patches The method further includes decoding connectivity information from the bitstream. Additionally, the method includes identifying triangles associated with the overlapped patches The triangles represented in an overlapped patch of the overlapped patches are allocated to a projection direction based on a normal vector associated with each of the triangles of the overlapped patch. The method also includes reconstructing the 3D mesh based on the connectivity information and the overlapped patches.

公开(公告)号：US20220030214A1

公开(公告)日：2022-01-27

申请号：US17381078

申请日：2021-07-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Indranil Sinharoy ,  Abhishek Sehgal ,  Nishith Tripathi ,  Madhukar Budagavi ,  Esmaeil Faramarzi

IPC: H04N13/282 ,  H04N13/178 ,  H04N13/139 ,  H04N13/167

Abstract: A method for generating content includes receiving information regarding electronic devices respectively capturing content associated with an event. The method also includes identifying, based on the received information, one or more parameters for the electronic devices to use in capturing the content, the one or more parameters identified to assist in generating multi-view content for the event from the captured content. The method further includes identifying, based on the received information, a common resolution for the electronic devices to use in capturing the content. Additionally, the method includes identifying, based on the received information, a common frame rate for the electronic devices to use in capturing the content. The method also includes sending information indicating the one or more parameters, the common resolution, and the common frame rate to the electronic devices.

公开(公告)号：US20200286261A1

公开(公告)日：2020-09-10

申请号：US16810682

申请日：2020-03-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Esmaeil Faramarzi ,  Madhukar Budagavi ,  Rajan Laxman Joshi ,  Hossein Najaf-Zadeh ,  Indranil Sinharoy

IPC: G06T9/00 ,  G06T7/33

Abstract: An encoding device, a decoding device, and a method for mesh decoding are disclosed. The method for mesh decoding includes receiving a compressed bitstream. The method also includes separating, from the compressed bitstream, a first bitstream and a second bitstream. The method further includes decoding, from the second bitstream, connectivity information of a three dimensional (3D) mesh. The method additionally includes decoding, from the first bitstream, a first frame and a second frame that include patches. The patches included in the first frame represent vertex coordinates of the 3D mesh and the patches included in the second frame represent a vertex attribute of the 3D mesh. The method also includes reconstructing a point cloud based on the first and second frames. Additionally, the method also includes applying the connectivity information to the point cloud to reconstruct the 3D mesh.

公开(公告)号：US10535161B2

公开(公告)日：2020-01-14

申请号：US16182465

申请日：2018-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Madhukar Budagavi ,  Esmaeil Faramarzi ,  Rajan Joshi ,  Hossein Najaf-Zadeh

IPC: G06T9/00 ,  G06T17/20

Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into 2-D frames that represent a 3-D point cloud. Each of the 2-D frames including a set of patches, and each patch includes a cluster of points of the 3-D point cloud. The cluster of points corresponds to an attribute associated with the 3-D point cloud. One patch of the set of patches, the set of patches, and the 2-D frames correspond to respective access levels representing the 3-D point cloud. The method also includes identifying a first and a second flag. In response to identifying the first and the second flag, the method includes reading the metadata from the bitstream. The method further includes generating, based on metadata and using the sets of 2-D frames, the 3-D point cloud.

公开(公告)号：US10424083B2

公开(公告)日：2019-09-24

申请号：US16165817

申请日：2018-10-19

Applicant: Samsung Electronics Co., Ltd

Inventor： Indranil Sinharoy ,  Madhukar Budagavi ,  Youngkwon Lim ,  Hossein Najaf-Zadeh ,  Sungryeul Rhyu ,  Esmaeil Faramarzi

IPC: G06T9/00 ,  G06T15/04 ,  G06T7/73 ,  G06T5/00 ,  G06K9/62 ,  G06T17/20 ,  G06T5/50

Abstract: A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes decoding the compressed bitstream into a first set and second set of 2-D frames. The first set of 2-D frames include first set of regular patches representing geometry of a 3-D point cloud and the second set of 2-D frames include first set of regular patches representing texture of the 3-D point cloud. The method includes identifying in the first set of 2-D frames, a missed points patch representing geometry of points of the 3-D point cloud not included in the regular patches, and in the second set of 2-D frames a missed points patch that represents texture of the points of the 3-D point cloud not included in the regular patches. The method also includes generating, using the set of 2-D frames, the 3-D point cloud using the missed points patches.

公开(公告)号：US10165218B2

公开(公告)日：2018-12-25

申请号：US14332132

申请日：2014-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Felix Carlos Fernandes ,  Esmaeil Faramarzi ,  Xin Li ,  Anshuman Tewari ,  Youngkwon Lim ,  Sungoh Hwang

IPC: H04N5/57 ,  H04N9/64 ,  H04N21/234 ,  H04N21/235 ,  H04N21/236 ,  H04N21/414 ,  H04N21/431 ,  H04N21/434 ,  H04N21/435 ,  H04N21/442 ,  H04N21/658 ,  G09G3/34 ,  H04N9/68 ,  G09G3/3208 ,  H04N21/84

Abstract: A method includes identifying an optimal backlight value for at least one quality level of a first video segment. The method also includes transmitting data for the first video segment. The transmitted data for the first video segment includes a message containing a first set of display adaptation information. The first set of display adaptation information includes the optimal backlight value for the at least one quality level of the first video segment. The method further includes identifying a backlight value for the at least one quality level of a second video segment. The method also includes determining a maximum backlight value change threshold between successive video segments. In addition, the method includes applying temporal smoothing between the optimal backlight value and the backlight value based on the maximum backlight value change threshold.