公开(公告)号：US20230162406A1

公开(公告)日：2023-05-25

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: G06T9/00 ,  G06T15/30 ,  H04N19/124

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.

公开(公告)号：US11562509B2

公开(公告)日：2023-01-24

申请号：US17224827

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: 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.

公开(公告)号：US11417076B2

公开(公告)日：2022-08-16

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: G06V10/22 ,  G06Q30/02 ,  H04N1/32 ,  G06V10/44 ,  G06V10/56

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：US20210407144A1

公开(公告)日：2021-12-30

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

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：US20210385303A1

公开(公告)日：2021-12-09

申请号：US17342249

申请日：2021-06-08

Applicant: QUALCOMM Incorporated

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

IPC: H04L29/06 ,  H04L12/801

Abstract: An example method of encoding a point cloud includes determining that residual values for all components except one component of an attribute of a point in the point cloud are equal to zero; based on the determination that the residual values for all components except the one component of the attribute are equal to zero, determining a value for the one component that is equal to a magnitude of a residual value of the one component of the attribute minus an offset; encoding the value of the one component; and signaling the encoded value in a bitstream.

公开(公告)号：US20210319595A1

公开(公告)日：2021-10-14

申请号：US17224674

申请日：2021-04-07

Applicant: QUALCOMM Incorporated

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

IPC: G06T9/20

Abstract: An example device for processing point cloud data includes a memory configured to store the point cloud data and one or more processors implemented in circuitry and coupled to the memory. The one or more processors are configured to count a number of edges of a cube of point cloud data comprising a vertex. The one or more processors are configured to set a variable based on a total of the counting. The one or more processors are also configured to process the point cloud data based on the variable.

公开(公告)号：US20240406228A1

公开(公告)日：2024-12-05

申请号：US18327829

申请日：2023-06-01

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Nikolai Konrad Leung ,  Louis Joseph Kerofsky

IPC: H04L65/1089 ,  H04L65/1101 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. For example, the described techniques provide for a first wearable device and a second wearable device to initiate media sessions with a user equipment (UE) and an end device. The wearable devices may each initiate a session flow by transmitting session description protocol (SDP) offer messages to the end device. In some examples, the wearable devices may transmit capability information to the UE, and the UE may transmit an SDP offer message to the end device. The end device may begin the session after receiving the one or more SDP offer messages by transmitting one or more SDP answer messages. The wearable devices may each transmit information about a user of the wearable devices. The end device may generate streams of media content, and the UE may cast the streams of media content to the wearable devices.

公开(公告)号：US20240221179A1

公开(公告)日：2024-07-04

申请号：US18523248

申请日：2023-11-29

Applicant: QUALCOMM Incorporated

Inventor： Louis Joseph Kerofsky ,  Bing Han ,  Kuan-Ting Shen

IPC: G06T7/20

CPC classification number: G06T7/20 ,  G06T3/18

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 image data comprising a first image frame and a second image frame; determining a global motion model corresponding to the first image frame and the second image frame; warping the first image frame based on the global motion model to determine a warped first image frame; and determining a local flow based on the warped first image frame and the second image frame. Other aspects and features are also claimed and described.

公开(公告)号：US11956470B2

公开(公告)日：2024-04-09

申请号：US17223780

申请日：2021-04-06

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/61 ,  H04N13/161 ,  H04N19/44

CPC classification number: H04N19/61 ,  H04N13/161 ,  H04N19/44

Abstract: A method for decoding point cloud data comprises, based on a comparison of a maximum difference value and a threshold, applying an inverse function to a set of one or more jointly coded values to recover (i) residual values for attribute values of a current point of point cloud data and (ii) a predictor index that indicates a predictor in a predictor list, wherein predictors in the predictor list are based on attribute values of one or more neighbor points; determining predicted attribute values based on the predictor index; and reconstructing the attribute values of the current point based on the residual values and the predicted attribute values.

公开(公告)号：US11941855B2

公开(公告)日：2024-03-26

申请号：US17224653

申请日：2021-04-07

Applicant: QUALCOMM Incorporated

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

IPC: G06T9/40 ,  G01S7/481 ,  G01S17/89 ,  G06T7/10 ,  G06T7/50 ,  H04N19/96

CPC classification number: G06T9/40 ,  G01S7/4817 ,  G01S17/89 ,  G06T7/10 ,  G06T7/50 ,  H04N19/96 ,  G06T2207/10028

Abstract: A device comprises one or more processors configured to: obtain a value for a first laser, the value for the first laser indicating a number of probes in an azimuth direction of the first laser; decode a syntax element for a second laser, wherein the syntax element for the second laser indicates a difference between the value for the first laser and a value for the second laser, the value for the second laser indicating a number of probes in the azimuth direction of the second laser; determine the value for the second laser indicating the number of probes in the azimuth direction of the second laser based on the first value and the indication of the difference between the value for the first laser and the value for the second laser; and decode a point based on the number of probes in the azimuth direction of the second laser.