公开(公告)号：US20230337232A1

公开(公告)日：2023-10-19

申请号：US18211207

申请日：2023-06-16

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Jie QIAN ,  Shaojun YAN ,  Lei ZHU

IPC: H04W72/1273 ,  H04W72/231 ,  H04W16/28

CPC classification number: H04W72/1273 ,  H04W72/231 ,  H04W16/28

Abstract: A system of an unmanned aerial vehicle (UAV) includes a first body of the UAV capable of flying, a second body detachably attached to the first body and capable of being a stabilizer, and a power supply system capable of powering the first body and the second body. The system further includes one or more sensors, at least one processor, and at least one storage medium storing instructions. When executed, the instructions in the at least one storage medium instruct the processor to receive sensor data from the one or more sensors.

公开(公告)号：US20200275103A1

公开(公告)日：2020-08-27

申请号：US15930135

申请日：2020-05-12

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Liang ZHAO ,  Wenyi SU ,  Lei ZHU

IPC: H04N19/149 ,  H04N19/172 ,  H04N19/115 ,  H04N19/196

Abstract: A method for controlling video coding including obtaining an image frame. The image frame includes a plurality of coding block groups each associated with a respective coding control model. The method further includes determining whether a coding block group is an initial coding block group or a subsequent coding block group of the image frame. If the coding block group is the initial coding block group, for an initial coding control model associated with the initial coding block group, values of one or more coding parameters are determined based on a bit allocation for the initial coding block group, and the initial coding block group is encoded using the initial coding control model with the determined values of the one or more coding parameters. If the coding block group is the subsequent coding block group, a bit allocation for the subsequent coding block group is updated based on the encoded initial coding block group.

公开(公告)号：US20200099968A1

公开(公告)日：2020-03-26

申请号：US16696601

申请日：2019-11-26

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Lei ZHU

IPC: H04N21/2343 ,  H04N21/2662 ,  H04N21/2383 ,  B64C39/02 ,  B64D47/08

Abstract: A video data processing method includes time down-sampling an image sequence to form multiple subsequences, separately encoding the multiple subsequences to form multiple encoded subsequences, and selecting frames to be transmitted according to sizes of respective frames in the multiple encoded subsequences and bandwidths of the multiple channels.

公开(公告)号：US20190320184A1

公开(公告)日：2019-10-17

申请号：US16455283

申请日：2019-06-27

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Lei ZHU ,  Ming GONG ,  Ning MA ,  Wei FAN ,  Hao CUI

IPC: H04N19/166 ,  H04N19/159 ,  H04N19/17

Abstract: An image processing method includes a transmitting terminal receiving a feedback message sent by a receiving terminal. The feedback message indicates a reception state of a received image frame sent by the transmitting terminal and received by the receiving terminal before the receiving terminal sends the feedback message. The method further includes acquiring a target image frame, encoding the target image frame according to a preset error correction mechanism to generate encoding data of the target image frame in response to the feedback message indicating a reception error, and sending the encoding data of the target image frame to the receiving terminal.

公开(公告)号：US20210160480A1

公开(公告)日：2021-05-27

申请号：US17164429

申请日：2021-02-01

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Liang ZHAO ,  Wenyi SU ,  Qingdong YU ,  Wei XIAO ,  Lei ZHU ,  Ming GONG ,  Ning MA ,  Wei FAN ,  Hao CUI

IPC: H04N19/103 ,  H04N19/164 ,  H04N19/172

Abstract: A computer-implemented method includes receiving a feedback message from a receiver of image data. The feedback message includes a reference frame identifier associated with a reference frame correctly received or decoded by the receiver. The method further includes determining a difference between the reference frame identifier and a current frame identifier. The current frame identifier is associated with a current frame to be encoded and the difference indicates a number of frames between the reference frame and the current frame. The method also includes encoding the current frame based at least in part on the difference.

公开(公告)号：US20210018938A1

公开(公告)日：2021-01-21

申请号：US17030022

申请日：2020-09-23

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Jie QIAN ,  Lei ZHU

IPC: G05D1/10 ,  H04L29/08 ,  G06T7/11 ,  G06K9/20 ,  H04N7/18 ,  G05D1/00 ,  G01S19/42 ,  G01C21/00 ,  G08G5/00

Abstract: A computation load distribution method includes determining a processing task associated with a mobile vehicle, and determining one or more processing resources for performing the processing task based at least partially on characteristics of the processing task. Determining the one or more processing resources includes determining whether to perform the processing task locally at the mobile vehicle and/or remotely at a remote terminal.

公开(公告)号：US20200319818A1

公开(公告)日：2020-10-08

申请号：US16909495

申请日：2020-06-23

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Qingdong YU ,  Lei ZHU ,  Xiaodong WANG

IPC: G06F3/06

Abstract: A system for supporting data processing and communication in a movable platform environment includes a memory buffer with a plurality of buffer blocks each configured to store one or more data frames, and a plurality of data processors including at least a first data processor and a second data processor. The first data processor operates to perform a write operation to write data into one of the buffer blocks in the memory buffer and provide a reference to the second data processor via a connection between the first data processor and the second data processor. The reference indicates a status or progress of the write operation performed by the first data processor. The second data processor operates to perform a read operation to read the data from the one of the buffer blocks in the memory buffer based on the reference.

公开(公告)号：US20200314682A1

公开(公告)日：2020-10-01

申请号：US16900343

申请日：2020-06-12

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Ying CHEN ,  Ning MA ,  Lei ZHU

IPC: H04W28/02 ,  H04N19/146 ,  H04N19/176 ,  H04L1/20 ,  H04W80/02 ,  B64C39/02

Abstract: A bit rate control method includes obtaining a first bit rate control target for a first preset time period and a second bit rate control target for a second preset time period, determining an encoding parameter according to the first bit rate control target and the second bit rate control target, and controlling an encoder to encode video source data using the encoding parameter to encode video source data. The first preset time period is equal to or longer than the second preset time period.

公开(公告)号：US20200280725A1

公开(公告)日：2020-09-03

申请号：US16877027

申请日：2020-05-18

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Lei ZHU

IPC: H04N19/159 ,  H04N19/124 ,  H04N19/91 ,  H04N19/61 ,  H04N19/30 ,  H04N19/176

Abstract: A method of encoding video data includes inter-coding a block of an image frame to generate an inter-coded block, reconstructing the inter-coded block to generate a reconstructed block, and intra-coding the reconstructed block to generate a double-coded block.

公开(公告)号：US20190283875A1

公开(公告)日：2019-09-19

申请号：US16433191

申请日：2019-06-06

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Lei ZHU ,  Ning MA ,  Ming GONG

IPC: B64C39/02 ,  H04N7/18 ,  H04N19/124

Abstract: A method for transmitting images includes obtaining image data of an image frame. The method also includes encoding the image data of the image frame to obtain first encoded image data. The method also includes determining a transmission delay of the first encoded image data. The method further includes re-encoding the image data of the image frame to obtain second encoded image data in response to determining that the transmission delay of the first encoded image data is not within a predetermined range.