公开(公告)号：US20240314358A1

公开(公告)日：2024-09-19

申请号：US18674330

申请日：2024-05-24

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Luong Pham Van ,  Bappaditya Ray ,  Louis Joseph Kerofsky ,  Geert Van der Auwera ,  Marta Karczewicz

IPC: H04N19/597 ,  H04N19/105 ,  H04N19/124 ,  H04N19/136 ,  H04N19/156 ,  H04N19/184 ,  H04N19/30

CPC classification number: H04N19/597 ,  H04N19/105 ,  H04N19/124 ,  H04N19/136 ,  H04N19/156 ,  H04N19/184 ,  H04N19/30

Abstract: A method of decoding point cloud data comprises obtaining a bitstream that is encoded to comply with one or more constraints and decoding the bitstream, wherein decoding the bitstream comprises: determining a residual value of a first component of an attribute of a point; generating a predicted value of a second component of the attribute of the point; and reconstructing the second component as a sum of the predicted value of the second component and a multiplication product of a scale factor for the second component and the residual value of the first component, wherein the constraints include a constraint that limits the first component of the attribute of the point, the residual value of the first component of the attribute of the point, the second component of the attribute, and the residual value of the second component of the attribute of the point to one or more predefined bitdepths.

公开(公告)号：US12026922B2

公开(公告)日：2024-07-02

申请号：US17355414

申请日：2021-06-23

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Bappaditya Ray ,  Geert Van der Auwera ,  Louis Joseph Kerofsky ,  Marta Karczewicz

IPC: G06T9/00 ,  G06T17/20

CPC classification number: G06T9/001 ,  G06T17/20

Abstract: An example method of encoding a point cloud includes determining one or more attribute parameters of an attribute of a point in the point cloud of a frame, wherein the one or more attribute parameters define how to determine or use a value of the attribute and are applicable to a plurality of points in the point cloud; and signaling, in a bitstream indicative of the point cloud, the one or more attribute parameters in a syntax structure that is specific to the frame.

公开(公告)号：US11818353B2

公开(公告)日：2023-11-14

申请号：US17742128

申请日：2022-05-11

Applicant: QUALCOMM Incorporated

Inventor： Louis Joseph Kerofsky ,  Dmytro Rusanovskyy ,  Marta Karczewicz

IPC: H04N19/126 ,  H04N19/176 ,  H04N19/18 ,  H04N19/70

CPC classification number: H04N19/126 ,  H04N19/176 ,  H04N19/18 ,  H04N19/70

Abstract: Techniques for performing inverse transform operations on high bit-depth video data are described. A video decoder may receive encoded video data encoded at a first bit-depth in an encoded video bitstream. The video decoder may determine one or more of a dequantization shift or a mid-transform shift based on information in the encoded video bitstream, and perform an inverse transform on the encoded video data at a second bit-depth using the dequantization shift and the mid-transform shift, wherein the second bit-depth is lower than the first bit-depth.

公开(公告)号：US11558643B2

公开(公告)日：2023-01-17

申请号：US17224877

申请日：2021-04-07

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Bappaditya Ray ,  Geert Van der Auwera ,  Louis Joseph Kerofsky ,  Marta Karczewicz

IPC: H04N19/124 ,  H04N19/186 ,  H04N19/70 ,  H04N19/174 ,  H04N19/597

Abstract: In some examples, a method of decoding a point cloud includes determining a first slice QP value for a first component of an attribute in a slice of point cloud data. The method also includes decoding a first delta QP value for the first component of the attribute for a region in the slice and determining a first region QP value for the first component of the attribute in the region from the first slice QP value and from the first delta QP value. The method further includes decoding a second delta QP value for the second component of the attribute for the region and determining a second region QP value for the second component of the attribute in the region from the second delta QP value. The method includes decoding the point cloud data based on the first and second region QP values.

公开(公告)号：US20220368911A1

公开(公告)日：2022-11-17

申请号：US17742128

申请日：2022-05-11

Applicant: QUALCOMM Incorporated

Inventor： Louis Joseph Kerofsky ,  Dmytro Rusanovskyy ,  Marta Karczewicz

IPC: H04N19/126 ,  H04N19/18 ,  H04N19/176 ,  H04N19/70

Abstract: Techniques for performing inverse transform operations on high bit-depth video data are described. A video decoder may receive encoded video data encoded at a first bit-depth in an encoded video bitstream. The video decoder may determine one or more of a dequantization shift or a mid-transform shift based on information in the encoded video bitstream, and perform an inverse transform on the encoded video data at a second bit-depth using the dequantization shift and the mid-transform shift, wherein the second bit-depth is lower than the first bit-depth.

公开(公告)号：US20220329800A1

公开(公告)日：2022-10-13

申请号：US17658803

申请日：2022-04-11

Applicant: QUALCOMM Incorporated

Inventor： Bappaditya Ray ,  Muhammed Zeyd Coban ,  Louis Joseph Kerofsky ,  Vadim Seregin ,  Marta Karczewicz ,  Keming Cao

IPC: H04N19/12 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: An example device for decoding video data includes a memory configured to store video data; and one or more processors implemented in circuitry and configured to: determine a size of a current block of video data; determine an intra-prediction mode for the current block of video data; determine a mode group including the determined intra-prediction mode, the mode group being one of a plurality of mode groups, each including respective sets of intra-prediction modes; determine a set of available multiple transform selection (MTS) schemes for the current block according to the size and the intra-prediction mode for the current block; determine an MTS scheme from the set of available MTS schemes according to the determined mode group; apply transforms of the MTS scheme to a transform block of the current block to produce a residual block for the current block; and decode the current block using the residual block.

公开(公告)号：US20220067415A1

公开(公告)日：2022-03-03

申请号：US17301268

申请日：2021-03-30

Applicant: QUALCOMM Incorporated

Inventor： Louis Joseph Kerofsky ,  Michael Stefanick ,  Mikko Juhani Palatsi ,  Deepankar Katyal

IPC: G06K9/20 ,  G06K9/46 ,  H04N1/32 ,  G06Q30/02

Abstract: An example device for processing image data includes a memory configured to store an image; and one or more processors implemented in circuitry and configured to: process the image to identify a pilot signal in the image indicating a portion of the image, the pilot signal forming a boundary around the portion and having pixel values defined according to a mathematical relationship with pixel values within the portion such that the pilot signal is not perceptible to a human user and is detectable the device; determine the portion of the image using the pilot signal; and further process the portion to attempt to detect one or more contents of the portion without attempting to detect the one or more contents of the image in portions of the image outside the portion.

公开(公告)号：US20240221384A1

公开(公告)日：2024-07-04

申请号：US18507988

申请日：2023-11-13

Applicant: QUALCOMM Incorporated

Inventor： Louis Joseph Kerofsky ,  Senthil Kumar Yogamani ,  Madhumitha Sakthi

IPC: G06V20/56 ,  G06T3/60 ,  G06V10/74

CPC classification number: G06V20/56 ,  G06T3/60 ,  G06V10/761

Abstract: This disclosure provides systems, methods, and devices for vehicle driving assistance systems that support image processing. In a first aspect, a method of image processing includes receiving first and second image data from first and second cameras having different lens types. A first field of view of the second image data overlaps at least a portion of a second field of view of the first image data. The method further includes determining a point in space based on the first image data and the second image data and calculating a distance between the first camera and the point in space based on the lens type of the first camera and the lens type of the second camera. Other aspects and features are also claimed and described.

公开(公告)号：US11869220B2

公开(公告)日：2024-01-09

申请号：US17492095

申请日：2021-10-01

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Bappaditya Ray ,  Geert Van der Auwera ,  Louis Joseph Kerofsky ,  Marta Karczewicz

IPC: G06T9/00 ,  G06T9/40

CPC classification number: G06T9/001 ,  G06T9/40

Abstract: A G-PCC coder is configured to receive the point cloud data, determine a final quantization parameter (QP) value for the point cloud data as a function of a node QP offset multiplied by a geometry QP multiplier, and code the point cloud data using the final QP value to create an coded point cloud.

公开(公告)号：US11847801B2

公开(公告)日：2023-12-19

申请号：US18158135

申请日：2023-01-23

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Bappaditya Ray ,  Geert Van der Auwera ,  Louis Joseph Kerofsky ,  Marta Karczewicz

IPC: H04N19/124 ,  G06T9/00 ,  G06T15/30

CPC classification number: G06T9/001 ,  G06T15/30 ,  H04N19/124 ,  G06T9/00

Abstract: In some examples, a method of decoding a point cloud includes decoding an initial QP value from an attribute parameter set. The method also includes determining a first QP value for a first component of an attribute of point cloud data from the initial QP value. The method further includes determining a QP offset value for a second component of the attribute of the point cloud data and determining a second QP value for the second component of the attribute from the first QP value and from the QP offset value. The method includes decoding the point cloud data based on the first QP value and further based on the second QP value.