公开(公告)号：US20240028127A1

公开(公告)日：2024-01-25

申请号：US18187634

申请日：2023-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Priyabrata Parida ,  Vutha Va ,  Anum Ali ,  Saifeng Ni ,  Boon Loong Ng

IPC: G06F3/01 ,  G01S7/41 ,  G06T7/246 ,  G06T7/521 ,  G06T7/55 ,  G06T7/174

CPC classification number: G06F3/017 ,  G01S7/415 ,  G06T7/246 ,  G06T7/521 ,  G06T7/55 ,  G06T7/174 ,  G06T2207/10028 ,  G06T2207/20021 ,  G06T2207/30196 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: A method includes obtaining a target distance and target velocity for each radar frame within a sliding input data window. Each radar frame within the data window includes extracted features. The method includes determining a dynamic threshold distance (dth) for a range of distances wherein performance of a gesture is valid. The method includes determining whether the target distance corresponding to a current radar frame satisfies a proximity condition based on the dth. The method includes in response to a determination the proximity condition is not satisfied, detecting a start of activity based on the extracted features. The method includes segmenting gesture frames from non-gesture frames in the data window, in response to at least one of: a determination the first proximity condition is satisfied, or a determination the current radar frame includes an end of the activity. The method includes discarding the non-gesture frames to modify the data window.

公开(公告)号：US20240370094A1

公开(公告)日：2024-11-07

申请号：US18508988

申请日：2023-11-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Priyabrata Parida ,  Vutha Va ,  Saifeng Ni ,  Anum Ali ,  Boon Loong Ng

IPC: G06F3/01 ,  G01S7/41 ,  G01S13/58 ,  G01S13/88

Abstract: An electronic device includes a transceiver configured to transmit and receive radar signals and a processor operatively coupled to the transceiver. The processor is configured to identify, based on the received radar signals, a plurality of radar frames related to an activity of a target. The processor is further configured to extract a plurality of features from the plurality of radar frames, compute burst attributes for the extracted features, predict a gesture based on the burst attributes, determine whether the predicted gesture is a valid gesture, and if the predicted gesture is a valid gesture, perform an action corresponding to the predicted gesture.

公开(公告)号：US20240361841A1

公开(公告)日：2024-10-31

申请号：US18607178

申请日：2024-03-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Saifeng Ni ,  Vutha Va ,  Priyabrata Parida ,  Boon Loong Ng

IPC: G06F3/01 ,  G01S13/88

CPC classification number: G06F3/017 ,  G01S13/88

Abstract: An electronic device includes a transceiver configured to transmit and receive radar signals, and a processor operatively coupled to the transceiver. The processor is configured to extract a plurality of feature vectors from a plurality of radar frames corresponding to the radar signals, identify an activity based on the plurality of feature vectors, and determine whether the identified activity corresponds with a non-gesture. The processor is further configured to, if the activity fails to correspond with a non-gesture, identify a gesture that corresponds with the activity, and perform an action corresponding with the identified gesture.

公开(公告)号：US11430168B2

公开(公告)日：2022-08-30

申请号：US16947628

申请日：2020-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ran Luo ,  Xiaohu Guo ,  Saifeng Ni

IPC: G06T13/40 ,  G06T19/00 ,  G06T13/80 ,  G02B27/01

Abstract: An electronic device for object rigging includes a processor. The processor is configured to obtain a 3D scan of an object. The processor is also configured to match a rigged parametric model to the 3D scan by minimizing a surface distance and 3D joint errors between the rigged parametric model and the 3D scan. The processor is further configured to identify a correspondence between the rigged parametric model and the 3D scan. Additionally, the processor is configured to transfer attributes of the rigged parametric model to the 3D scan based on the correspondence to generate a rigged 3D scan. The processor is also configured to apply animation motion to the rigged 3D scan. The rigged 3D scan with the applied animation motion is rendered on a display.

公开(公告)号：US20220101603A1

公开(公告)日：2022-03-31

申请号：US17486485

申请日：2021-09-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Saifeng Ni ,  Zhipeng Fan

IPC: G06T17/20 ,  G06N3/04 ,  G06T13/40 ,  G06T17/10 ,  G06T7/73

Abstract: An electronic device for object rigging includes a processor. The processor is configured to obtain a three-dimensional (3D) scan of an object. The processor is also configured to identify 3D coordinates associated with joints of the 3D scan. The processor is further configured to identify parameters associated with fitting a 3D parametric body model to the 3D scan based on the 3D coordinates of the joints. Additionally, the processor is configured to modify the parameters to reduce 3D joint errors between the 3D coordinates associated with the joints on the 3D scan and the 3D parametric body model. The processor is also configured to generate a rigged 3D scan based on the modified parameters, for performing an animated motion.