公开(公告)号：US11997282B2

公开(公告)日：2024-05-28

申请号：US17708004

申请日：2022-03-30

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Liang Zhao ,  Wenyi Su ,  Shizhen Zhou

IPC: H04N19/134 ,  G06F3/01 ,  H04N19/117 ,  H04N19/124 ,  H04N19/36

CPC classification number: H04N19/134 ,  G06F3/013 ,  H04N19/117 ,  H04N19/124 ,  H04N19/36

Abstract: An image processing method and apparatus for a mobile platform, a mobile platform, and a medium. The image processing method may include acquiring a current image to be encoded; acquiring an encoding quality evaluation parameter of an encoded historical image and a network state evaluation parameter of a wireless communication link, wherein the encoded historical image may be sent to a receiving end through the wireless communication link; and based on the encoding quality evaluation parameter and the network state evaluation parameter, determining whether to execute a target area image processing algorithm on the current image.

公开(公告)号：US11019356B2

公开(公告)日：2021-05-25

申请号：US16738253

申请日：2020-01-09

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Wenyi Su ,  Liang Zhao ,  Lei Zhu

IPC: H04N19/513 ,  H04N19/172 ,  H04N19/423 ,  H04N19/527 ,  H04N19/53

Abstract: Motion estimation method and motion estimation device are provided. The method includes: determining a global motion vector of a current frame relative to a current reference frame according to the current frame and the current reference frame; and performing motion estimation on a target frame according to the global motion vector.

公开(公告)号：US10911750B2

公开(公告)日：2021-02-02

申请号：US16457809

申请日：2019-06-28

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

Abstract: A computer-implemented method includes receiving a feedback message including feedback information from a receiver of image data, obtaining a current frame to be encoded, encoding the current frame based at least in part on the feedback information, and transmitting the encoded current frame to the receiver.

公开(公告)号：US11356672B2

公开(公告)日：2022-06-07

申请号：US15931155

申请日：2020-05-13

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Liang Zhao ,  Wenyi Su ,  Lei Zhu

IPC: H04N19/149 ,  H04N19/142

Abstract: A method for controlling video coding includes obtaining a target rate for an image data unit to be encoded using one or more coding parameters. The one or more coding parameters are determined based on the target rate and a rate control model associated with one or more model parameters. The method further includes determining the one or more model parameters associated with the rate control model based on an encoding of one or more reference image data units using one or more reference coding parameters, determining the one or more coding parameters for encoding the image data unit based on the target rate and the rate control model associated with the one or more determined model parameters, and using the one or more determined coding parameters to encode the image data unit.

公开(公告)号：US11134250B2

公开(公告)日：2021-09-28

申请号：US15930135

申请日：2020-05-12

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Liang Zhao ,  Wenyi Su ,  Lei Zhu

IPC: H04N7/12 ,  H04N19/149 ,  H04N19/115 ,  H04N19/172 ,  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：US20210168376A1

公开(公告)日：2021-06-03

申请号：US17171274

申请日：2021-02-09

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Lei ZHU ,  Wenjun Zhao ,  Wenyi Su ,  Liang Zhao

IPC: H04N19/167 ,  H04N19/176 ,  H04N19/124 ,  B64C39/02

Abstract: An unmanned aerial vehicle comprises a body coupled with a plurality of propulsion systems and an imaging device; an encoder that encodes video data generated by the imaging device, and a wireless communication system for transmitting the encoded video data. The encoder includes a region of interest (ROI) control module that determines, within an image frame of the video data, a first region and a second region, the ROI control module further setting a first limit indicating a maximum value of quantization parameters for encoding each macroblock within the first region, a second limit indicating a maximum size of the first region, and a third limit indicating a minimum size of the second region. The encoder further includes a ROI monitoring module coupled to the ROI control module that estimates a first image quality of the first region and a second image quality of a second region, and the ROI control module adjusts a size of the first region and the second region according to the first image quality and the second image quality. The present application also relates to an encoding method as embodied in the encoder.

公开(公告)号：US12301333B2

公开(公告)日：2025-05-13

申请号：US17648258

申请日：2022-01-18

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Shichao Kong ,  Xuke Wu ,  Liang Zhao ,  Hao Zheng

IPC: H04B7/185 ,  H04W56/00 ,  H04W74/08 ,  H04W74/0808 ,  H04W36/00

Abstract: A method for controlling a first unmanned vehicle system includes determining whether each of a plurality of working channels is occupied by one of one or more second unmanned vehicle systems to obtain states of the plurality of working channels, and outputting the states of the plurality of working channels via a control terminal of the first unmanned vehicle system. Each of the states includes an occupied state or an idle state.

公开(公告)号：US11190775B2

公开(公告)日：2021-11-30

申请号：US15931260

申请日：2020-05-13

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Liang Zhao ,  Wenyi Su ,  Lei Zhu

IPC: H04N19/149 ,  H04N19/115 ,  H04N19/126 ,  H04N19/172 ,  H04N19/17

Abstract: A method for supporting video coding includes obtaining an image frame including a plurality of coding block groups each including one or more coding blocks, using a first coding control model associated with a first coding block group in the image frame to estimate one or more first coding parameters, using a second coding control model associated with a second coding block group in the image frame to estimate one or more second coding parameters, determining one or more effective coding parameters based on an evaluation of the one or more first coding parameters and the one or more second coding parameters, and using the one or more effective coding parameters to encode the plurality of coding block groups in the image frame.