公开(公告)号：US12131555B2

公开(公告)日：2024-10-29

申请号：US17686023

申请日：2022-03-03

Applicant: GM Global Technology Operations LLC

Inventor： Bo Yu ,  Ashok Yendluri ,  Lawrence Andrew Bush ,  Kevin Khoi Hoang ,  Donald K. Grimm ,  Fan Bai

IPC: G06V10/25 ,  B60W60/00 ,  G06F17/14 ,  G06V20/58 ,  G08G1/0967 ,  H04W4/46

CPC classification number: G06V20/584 ,  B60W60/001 ,  G06F17/142 ,  G06V10/25 ,  G08G1/096791 ,  H04W4/46 ,  B60W2556/40 ,  B60W2556/65

Abstract: A sequence of images and a vehicle location associated with each of the images is received at a traffic light ROI management system. At least one traffic light is detected in each image. A ECS traffic light ROI is defined for each image. The ECS traffic light ROI encloses the detected traffic lights. A visual feature template is generated for each image. The visual feature template is based on the ECS traffic light ROI for the image. Each visual feature template is mapped to the vehicle location associated with the image to a HD map. The HD map is transmitted to an autonomous vehicle to enable the autonomous vehicle to identify a real-time traffic light ROI in a real-time image based on a match between a first visual feature template and real-time visual features of the real-time image at the vehicle location associated with the first visual feature template.

公开(公告)号：US12111176B2

公开(公告)日：2024-10-08

申请号：US17821898

申请日：2022-08-24

Applicant: GM Global Technology Operations LLC

Inventor： Bo Yu ,  Joon Hwang ,  Gui Chen ,  Carl P. Darukhanavala ,  Vivek Vijaya Kumar ,  Shu Chen ,  Donald K. Grimm ,  Fan Bai

IPC: G01C21/30 ,  G01C21/00

CPC classification number: G01C21/3822 ,  G01C21/3841 ,  G01C21/3878

Abstract: A method includes receiving sensor data from a plurality of sensors of a plurality of vehicles. The sensor data includes vehicle GPS data and sensed lane line data of the roadway. The method further includes creating a plurality of multi-layer bitmaps for each of the plurality of vehicles using the sensor data, fusing the plurality of the multi-layer bitmaps of each of the plurality of vehicles to create a fused multi-layer bitmap, creating a plurality of multi-layer probability density bitmaps using the fused multi-layer bitmap, extracting lane line data from the plurality of multi-layer probability density bitmaps, and creating the high-definition (HD) map of the roadway using the multi-layer probability density bitmaps and the lane line data extracted from the plurality of multi-layer probability density bitmaps.

公开(公告)号：US20240304083A1

公开(公告)日：2024-09-12

申请号：US18179681

申请日：2023-03-07

Applicant: GM Global Technology Operations LLC

Inventor： Richard Gordon ,  Donald K. Grimm ,  Fan Bai

IPC: G08G1/01 ,  G08G1/0967

CPC classification number: G08G1/0145 ,  G08G1/0133 ,  G08G1/096725 ,  G08G1/096733

Abstract: A system and method of identifying and quantifying congestion within a traffic stream including obtaining telemetric data from a plurality of vehicles traveling within a plurality of normalized road segments, determining a property of each normalized road segment based on the telemetric data and a road profile for each road segment, determining a disruption score indicative of a level of disruption in a traffic flow within each road segment, mapping the road segments within a two-dimensional spatial-temporal grid of cells, wherein each cell represents a normalized road segment at a specified time, for each cell, determining if the traffic flow is congested, identifying a congested traffic stream including a plurality of contiguous cells that have congested traffic flow, quantifying the congested traffic stream, and providing an output signal.

公开(公告)号：US20240282008A1

公开(公告)日：2024-08-22

申请号：US18170060

申请日：2023-02-16

Applicant: GM Global Technology Operations LLC

Inventor： Chuan Li ,  Andrew W. Averhart ,  Fan Bai

IPC: G06T9/00 ,  G06T5/00 ,  G06V10/764

CPC classification number: G06T9/00 ,  G06T5/70 ,  G06V10/764 ,  G06V2201/07

Abstract: A system for object blurring in compressed videos includes sensors, human machine interfaces (HMIs), and control modules. Each control module has a processor, memory, and input/output (I/O) ports. The control modules communicate with the sensors and the HMIs via the I/O ports. The memory stores control logic that is executed by the processor. The control logic receives raw image data from the sensors, encodes the raw image data into compressed image data and stores the compressed image data in memory. The control logic parses and partially decodes the compressed image data to access raw independent video frames and performs post-processing algorithms on the raw independent video frames to generate post-processed independent video frames. The post-processed independent video frames are encoded and replace raw independent video frames in the compressed image data. The control logic transmits an output including the encoded post-processed independent and dependent video frames to the HMI.

公开(公告)号：US12061255B2

公开(公告)日：2024-08-13

申请号：US17511942

申请日：2021-10-27

Applicant: GM Global Technology Operations LLC

Inventor： Kamran Ali ,  Wende Zhang ,  Fan Bai

IPC: G01S13/931 ,  B60W50/00 ,  B60W60/00 ,  G01S13/89

CPC classification number: G01S13/931 ,  B60W50/00 ,  B60W60/001 ,  G01S13/89 ,  B60W2050/0088 ,  B60W2420/408

Abstract: A scan matching and radar pose estimator for determining a final radar pose for an autonomous vehicle includes an automated driving controller that is instructed to determine a hyper-local submap based on a predefined number of consecutive aggregated filtered data point cloud scans and associated pose estimates. The automated driving controller determines an initial estimated pose by aligning a latest aggregated filtered data point cloud scan with the most recent hyper-local submap based on an iterative closest point (ICP) alignment algorithm. The automated driving controller determines a pose graph based on the most recent hyper-local submap and neighboring radar point cloud scans, and executes a multi-view non-linear ICP algorithm to adjust initial estimated poses corresponding to the neighboring radar point cloud scans in a moving window fashion to determine a locally adjusted pose.

公开(公告)号：US20240233320A1

公开(公告)日：2024-07-11

申请号：US18150387

申请日：2023-01-05

Applicant: GM Global Technology Operations LLC

Inventor： Chuan Li ,  Fan Bai ,  Sushama K. Mithapally ,  Andrew W. Averhart

IPC: G06V10/75 ,  H04N19/146 ,  H04N19/517

CPC classification number: G06V10/751 ,  H04N19/146 ,  H04N19/517

Abstract: A method for video streaming includes receiving an input image from a camera. The input image includes a plurality of input grid areas. The method further includes receiving a template image. The method further includes comparing the matching error with a template-matching error threshold to determine whether the matching error is equal to or greater than the template-matching error threshold in order to identify unmatched grid areas of the input image. The plurality of input grid areas includes the unmatched grid areas and matched grid areas. The matching error of the matched grid areas is not equal to or greater than the template-matching error threshold. The method further includes transmitting the unmatched grid areas of the input image and identification information of the matched grid areas to the vehicle, thereby minimizing bandwidth consumption used during video streaming.

公开(公告)号：US12010461B2

公开(公告)日：2024-06-11

申请号：US17848867

申请日：2022-06-24

Applicant: GM Global Technology Operations LLC

Inventor： Esther Anderson ,  Jace C. Stokes ,  Fan Bai ,  Chuan Li ,  Mark T. Gaylord ,  Wende Zhang ,  Paul Andrew Justin

IPC: H04N7/18 ,  B60R1/22 ,  B60R11/00 ,  B60R11/04

CPC classification number: H04N7/181 ,  B60R1/22 ,  B60R2011/0078 ,  B60R11/04

Abstract: A multimedia system is provided for a scalable infotainment system of a motor vehicle. The scalable infotainment system includes a camera, which is releasably attached to the motor vehicle and supports camera software components for generating a media signal. The multimedia system includes a media player and a computer attached to the motor vehicle. The computer has a processor and a non-transitory computer readable storage medium, which stores player software components including multiple streaming protocols used by the media player to play a media stream. The processor is programmed to transmit to the camera a player setup signal including data associated with the player software components. The processor is further programmed to receive from the camera a media signal associated with a media stream generated by the camera by using a common one of the streaming protocols supported by the camera and the media player.

公开(公告)号：US20240151805A1

公开(公告)日：2024-05-09

申请号：US18049911

申请日：2022-10-26

Applicant: GM Global Technology Operations LLC

Inventor： Jinzhu Chen ,  Zijun Han ,  Fan Bai ,  Aaron Adler ,  John Sergakis

IPC: G01S5/02 ,  G01S5/10 ,  H04B1/7163

CPC classification number: G01S5/021 ,  G01S5/10 ,  H04B1/7163

Abstract: Systems and methods of diagnosing sensor performance of an ultra wide band (UWB) sensor localization for a vehicle are provided. The method comprises receiving sensor signals from at least four UWB anchors and a UWB tag for a time period. The sensor signals represent anchor coordinates and real-time distances between the tag and each anchor. The method comprises aligning the sensor signals to define aligned data. The method comprises calculating a predicted location of the UWB tag based on the aligned data and a least square of error to define a first constructed matrix and a second constructed matrix. The method comprises determining a local error of each of the at least four UWB anchors based on the least square of error and comparing each local error with an error threshold to define a first threshold high. The method comprises determining an erratic anchor based on the first threshold high.

公开(公告)号：US11912298B2

公开(公告)日：2024-02-27

申请号：US17680682

申请日：2022-02-25

Applicant: GM Global Technology Operations LLC

Inventor： Chuan Li ,  Donald K. Grimm ,  Fan Bai

IPC: B60W60/00 ,  G01C21/34 ,  G01C21/36 ,  H04W4/46

CPC classification number: B60W60/001 ,  G01C21/3492 ,  G01C21/3691 ,  H04W4/46 ,  B60W2420/42 ,  B60W2554/4049

Abstract: An event scheduling system for collecting image data related to one or more events by one or more autonomous vehicles includes a centralized scheduling system in wireless communication with one or more autonomous vehicles. Each autonomous vehicle collects the image data related to the one or more events while following a unique travel schedule. The centralized scheduling system executes instructions to determine the unique travel schedule for a specific autonomous vehicle, where the unique travel schedule directs the specific autonomous vehicle to the specific location of the filtered event to collect the image data.

公开(公告)号：US11866052B2

公开(公告)日：2024-01-09

申请号：US17528367

申请日：2021-11-17

Applicant: GM Global Technology Operations LLC

Inventor： Halit Zengin ,  Joseph K. Moore ,  Carlos Eduardo Arreaza ,  Amin Abdossalami ,  Swee Meng Yong ,  Yassir E. Elrayah ,  Donald K. Grimm ,  Fan Bai ,  Jinzhu Chen

IPC: B60W40/068 ,  B60W40/13 ,  B60W10/18 ,  B60T8/1763 ,  H04W4/46

CPC classification number: B60W40/068 ,  B60T8/1763 ,  B60W10/18 ,  B60W40/13 ,  H04W4/46 ,  B60W2552/40 ,  B60W2555/20 ,  B60W2556/10 ,  B60W2556/65

Abstract: A distributed computing system for determining road surface traction capacity for roadways located in a common spatio-temporal zone includes a plurality of vehicles that each include a plurality of sensors and systems that collect and analyze a plurality of parameters related to road surface conditions in the common spatio-temporal zone. The distributed computing system also includes one or more central computers in wireless communication with each of the plurality of vehicles. The one or more central computers execute instructions to determine a road surface traction capacity value for the common spatio-temporal zone.