公开(公告)号：US20230023419A1

公开(公告)日：2023-01-26

申请号：US17937323

申请日：2022-09-30

Applicant: Amazon Technologies, Inc.

Inventor： Xiaohan Nie ,  Muhammad Raffay Hamid

IPC: G06T7/33 ,  G06T7/73 ,  G06V20/40 ,  G06V10/75 ,  G06K9/62 ,  H04N5/272

Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.

公开(公告)号：US12101529B1

公开(公告)日：2024-09-24

申请号：US17448039

申请日：2021-09-17

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Zaixi Shang ,  Sriram Sethuraman ,  Hai Wei ,  Xiaohan Nie

IPC: H04N7/10 ,  G06T5/70 ,  G06T7/11 ,  G06T7/194 ,  G06T11/00 ,  G06V10/22 ,  G06V20/40 ,  H04N21/44 ,  H04N21/488 ,  H04N21/81

CPC classification number: H04N21/44008 ,  G06T5/70 ,  G06T7/11 ,  G06T7/194 ,  G06T11/00 ,  G06V10/225 ,  G06V20/40 ,  H04N21/488 ,  H04N21/812 ,  G06T2207/10016 ,  G06T2207/30221

Abstract: Techniques are described for facilitating client-side augmented reality overlay of secondary content during live events. Regions for overlaying secondary content are identified along with attributes for each region. A client device may then used the attributes to overlay secondary content in each region prior to playback.

公开(公告)号：US11967161B2

公开(公告)日：2024-04-23

申请号：US16914189

申请日：2020-06-26

Applicant: Amazon Technologies, Inc.

Inventor： Hakan Boyraz ,  Baoyuan Liu ,  Xiaohan Nie ,  Sheng Chen

IPC: G06T7/73 ,  B60W60/00 ,  G05D1/00 ,  G05D1/02 ,  G06K9/00 ,  G06V10/80 ,  G06V20/10 ,  G06V20/58 ,  G06V20/64

CPC classification number: G06V20/64 ,  B60W60/00256 ,  G05D1/0094 ,  G05D1/024 ,  G05D1/0274 ,  G06T7/74 ,  G06V10/80 ,  G06V20/10 ,  G06V20/58 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/30261

Abstract: The present disclosure generally relates to a system of a delivery device for combining sensor data from various types of sensors to generate a map that enables the delivery device to navigate from a first location to a second location to deliver an item to the second location. The system obtains data from RGB, LIDAR, and depth sensors and combines this sensor data according to various algorithms to detect objects in an environment of the delivery device, generate point cloud and pose information associated with the detected objects, and generates object boundary data for the detected objects. The system further identifies object states for the detected object and generates the map for the environment based on the detected object, the generated object proposal data, the labeled point cloud data, and the object states. The generated map may be provided to other systems to navigate the delivery device.

公开(公告)号：US11748988B1

公开(公告)日：2023-09-05

申请号：US17236688

申请日：2021-04-21

Applicant: Amazon Technologies, Inc.

Inventor： Shixing Chen ,  Xiaohan Nie ,  David Jiatian Fan ,  Dongqing Zhang ,  Vimal Bhat ,  Muhammad Raffay Hamid

IPC: G06V20/40 ,  G06N20/00 ,  G06N5/04 ,  G06F16/73 ,  G06F16/78 ,  G11B27/34 ,  H04N5/14 ,  G11B27/036 ,  G06V10/75 ,  G06F18/22 ,  G06F18/214

CPC classification number: G06V20/46 ,  G06F16/73 ,  G06F16/78 ,  G06F18/214 ,  G06F18/22 ,  G06N5/04 ,  G06N20/00 ,  G06V10/751 ,  G06V20/49 ,  G11B27/036 ,  G11B27/34 ,  H04N5/147

Abstract: Techniques for automatic scene change detection in a video are described. As one example, a computer-implemented method includes extracting features of a query shot and its neighboring shots of a first set of shots without labels with a query model, determining a key shot of the neighboring shots which is most similar to the query shot based at least in part on the features of the query shot and its neighboring shots, extracting features of the key shot with a key model, training the query model into a trained query model based at least in part on a comparison of the features of the query shot and the features of the key shot, extracting features of a second set of shots with labels with the trained query model, and training a temporal model into a trained temporal model based at least in part on the features extracted from the second set of shots and the labels of the second set of shots.

公开(公告)号：US11468578B2

公开(公告)日：2022-10-11

申请号：US16948348

申请日：2020-09-14

Applicant: Amazon Technologies, Inc.

Inventor： Xiaohan Nie ,  Muhammad Raffay Hamid

IPC: G06T7/33 ,  G06T7/73 ,  G06V20/40 ,  G06V10/75 ,  G06K9/62 ,  H04N5/272 ,  H04N21/2187 ,  H04N21/234

Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.

公开(公告)号：US20220084222A1

公开(公告)日：2022-03-17

申请号：US16948348

申请日：2020-09-14

Applicant: Amazon Technologies, Inc.

Inventor： Xiaohan Nie ,  Muhammad Raffay Hamid

IPC: G06T7/33 ,  G06K9/00 ,  G06K9/62 ,  G06T7/73 ,  H04N5/272

Abstract: Methods and systems are described for registering a sports field to a video. Video of a live event may feature participants at a venue. A template of the venue, including virtual markings that represent real markings on the venue, may be obtained. A homographic transformation between an image plane and a ground plane may be determined by matching virtual markings to corresponding real markings captured in at least one frame of the video. The determined homographic transformation may be used in the automated analysis of sports statistics and in improving inserted annotations and visualizations.