Video processing method, device, aircraft, and system

Patent metadata

Field	Value
Publication number	US-11385658-B2
Application number	US-202016747970-A
Country	US
Kind code	B2
Filing date	Jan 21, 2020
Priority date	Jul 31, 2017
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

A video processing method includes receiving a video to be edited including a target object and shot by a photographing device mounted at an aircraft, determining a first video frame from the video to be edited, determining a display area of the target object in the first video frame, and obtaining a target video including performing an adjustment processing on an image position of the target object in a second video frame of the video to be edited according to the display area. The image position of the target object in the second video frame after being adjusted is the same as an image position of the display area in the first video frame.

First claim

What is claimed is:

1. A video processing method comprising:
receiving a video to be edited including a target object and shot by a photographing device mounted at an aircraft;
determining a first video frame from the video to be edited and determining a display area of the target object in the first video frame; and
obtaining a target video, including performing an adjustment processing on an image position of the target object in a second video frame of the video to be edited according to the display area, the image position of the target object in the second video frame after being adjusted being the same as an image position of the display area in the first video frame, wherein performing the adjustment processing on the image position of the target object in the second video frame includes:
determining a size of the target object in the display area of the first video frame;
setting the size as a standard size;
performing a scaling processing on the target object in the second video frame according to the standard size, including performing the scaling processing on an entire image area of the second video frame; and
performing the adjustment processing on the image position of the target object after being scaled in the second video frame according to the display area.

2. The method of claim 1 , wherein determining the first video frame from the video to be edited includes:
obtaining a size of the target object in each video frame of the video to be edited; and
determining a video frame having a largest size of the target object as the first video frame.

3. The method of claim 1 , wherein determining the first video frame from the video to be edited includes:
determining a first one in a sequence of video frames in the video to be edited as the first video frame; or
determining a last one in the sequence of video frames in the video to be edited as the first video frame.

4. The method of claim 1 , further comprising, before receiving the video to be edited:
performing a frame-selection operation on the target object in a preview image shot by the photographing device to determine a target frame-selection region, the target object being located within the target frame-selection region.

5. The method of claim 4 , wherein the display area of the target object in the first video frame is determined according to a position of the target frame-selection region.

6. The method of claim 1 , further comprising, before receiving the video to be edited:
obtaining position information of a click operation on the target object in a preview image shot by the photographing device; and
determining a target frame-selection region according to the position information of the click operation, the target object being located within the target frame-selection region.

7. The method of claim 1 , wherein performing the scaling processing on the entire image area of the second video frame includes:
performing an enlargement processing on the entire image area of the second video frame according to the standard size; and
performing a clipping processing on the second video frame being enlarged, a size of the display area of the second video frame after being clipped being the same as a size of the display area of the first video frame.

8. The method of claim 1 , wherein obtaining the target video further includes:
after performing the adjustment processing on the image position of the target object in the second video frame, adjusting a time sequence of respective designated video frames in the video to be edited according to a preset adjustment rule; and
determining the video obtained after adjusting the time sequence as the target video.

9. The method of claim 8 , wherein adjusting the time sequence of the respective designated video frames in the video to be edited includes adjusting the respective designated video frames in the video to be edited in a reverse order according to a shooting time sequence.

10. The method of claim 9 , wherein adjusting the respective designated video frames in the video to be edited in the reverse order includes adjusting the respective designated video frames in the video to be edited in the reverse order according to the shooting time sequence in response to that the video to be edited is shot while the aircraft flies away from the target object.

11. The method of claim 1 , further comprising:
sending a flight control instruction to the aircraft, the flight control instruction being configured to control a flight of the aircraft.

12. The method of claim 11 , wherein the flight control instruction includes:
an instruction for controlling the aircraft to move in a direction away from the target object; or
an instruction for controlling the aircraft to move in a direction toward the target object.

13. A video processing method comprising:
receiving a flight control instruction indicating a flight mode of an aircraft and indicating a target object;
responding to the flight control instruction, controlling the aircraft to fly in the flight mode and controlling a photographing device mounted at the aircraft to shoot a video of the target object, an attitude of the photographing device being controlled to maintain a position of the target object unchanged in the video, and a flight trajectory of the aircraft being controlled to change a size of the target object in the video;
determining a first video frame from the video and determining a display area of the target object in the first video frame;
performing an adjustment processing on an image position of the target object in a second video frame of the video according to the display area, to obtain a target video, the image position of the target object in the second video frame after being adjusted being the same as an image position of the display area in the first video frame; and
returning the video shot by the photographing device in the flight mode;
wherein performing the adjustment processing on the image position of the target object in the second video frame includes:
determining the size of the target object in the display area of the first video frame;
setting the size as a standard size;
performing a scaling processing on the target object in the second video frame according to the standard size, including performing the scaling processing on an entire image area of the second video frame; and
performing the adjustment processing on the image position of the target object after being scaled in the second video frame according to the display area.

14. The method of claim 13 , wherein the flight control instruction includes:
an instruction for controlling the aircraft to move in a direction away from the target object; or
an instruction for controlling the aircraft to move in a direction toward the target object.

15. A video processing method comprising:
sending, by a video processing device, a flight control instruction to an aircraft, the flight control instruction indicating a flight mode of the aircraft;
responding to the flight control instruction, the aircraft flying in the flight mode and controlling a photographing device mounted at the aircraft to shoot a video of a target object, an attitude of the photographing device being controlled to maintain a position of the target object unchanged in the video, and a flight trajectory of the aircraft being controlled to change a size of the target object in the video;
returning, by the aircraft, the video to the video processing device;
receiving, by the video processing device, the video;
determining, by the video processing device, a firs

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Cheng Long
• Su guanhua

Classifications

• H04N23/66

  Remote control of cameras or camera parts, e.g. by remote control devices · CPC title

• H04N23/695

  Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects · CPC title

• H04N23/60 Primary

  Control of cameras or camera modules · CPC title

• G05D1/101 Primary

  specially adapted for aircraft · CPC title

• G11B27/031

  Electronic editing of digitised analogue information signals, e.g. audio or video signals · CPC title