Shooting method, apparatus, and electronic device

Patent metadata

Field	Value
Publication number	US-11736795-B2
Application number	US-202017420207-A
Country	US
Kind code	B2
Filing date	Dec 3, 2020
Priority date	Jun 28, 2020
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A shooting method includes: obtaining a preview image collected by an image collection device; detecting a first relative distance and a first relative angle between a foreground of the preview image and the image collection device, and detecting a second relative distance and a second relative angle between a background of the preview image and the image collection device; determining a target shooting position of the image collection device based on the first relative distance, the first relative angle, the second relative distance and the second relative angle, wherein a picture obtained by shooting the foreground and the background at the target shooting position has a composition that matches with a set composition strategy; and displaying a prompt message about the target shooting position for prompting the image collection device to move to the target shooting position.

First claim

What is claimed is:

1. A shooting method, comprising:
obtaining a preview image collected by an image collection device;
detecting a first relative distance and a first relative angle between a foreground of the preview image and the image collection device, and detecting a second relative distance and a second relative angle between a background of the preview image and the image collection device;
determining a target shooting position of the image collection device based on the first relative distance, the first relative angle, the second relative distance and the second relative angle, wherein a picture obtained by shooting the foreground and the background at the target shooting position has a composition that matches with a set composition strategy, and the set composition strategy includes a composition about a relative position of the foreground to the background and a relative area of the foreground to the background; and
displaying a prompt message about the target shooting position for prompting the image collection device to move to the target shooting position.

2. The shooting method of claim 1 , wherein determining the target shooting position of the image collection device comprises:
determining positions of the foreground and the background in a three-dimensional coordinate system where the image collection device is located based on the first relative distance, the first relative angle, the second relative distance and the second relative angles;
determining a plurality of candidate positions in the three-dimensional coordinate system;
for the plurality of candidate positions, predicting a plurality of pictures obtained by shooting the foreground and the background at the plurality of candidate positions based on the positions of the foreground and the background in the three-dimensional coordinate system; and
determining the target shooting position from the plurality of candidate positions based on a matching degree between the composition of each of the plurality of pictures at the plurality of candidate positions and the set composition strategy.

3. The shooting method of claim 1 , wherein detecting the first relative distance, the first relative angle, the second relative distance and the second relative angle comprises:
determining a shaking degree of an attitude of the image collection device in a current period based on attitude information periodically collected by a sensor;
detecting the first relative distance, the first relative angle, the second relative distance and the second relative angle when the shaking degree of the attitude of the image collection device in the current period is less than a shaking threshold; and
recognizing a non-shooting behavior, and displaying the preview image when the shaking degree of the attitude of the image collection device in the current period is greater than or equal to the shaking threshold.

4. The shooting method of claim 1 , wherein obtaining the preview image collected by the image collection device comprises:
obtaining a pressing force of a shooting control in a shooting interface collected by a pressure element; and
obtaining the preview image collected by the image collection device when the pressing force falls within a target force interval.

5. The shooting method of claim 4 , wherein after detecting the pressing force of the shooting control in the shooting interface, the method further comprises: controlling the image collection device to shoot when the pressing force is greater than an upper limit of the target force interval.

6. The shooting method of claim 1 , wherein the prompt message comprises at least one of a direction arrow and a rotation angle.

7. A shooting apparatus, comprising:
one or more processors; and
a memory storing instructions executable by the one or more processors;
wherein the one or more processors are configured to:
obtain a preview image collected by an image collection device;
detect a first relative distance and a first relative angle between a foreground of the preview image and the image collection device, and detect a second relative distance and a second relative angle between a background of the preview image and the image collection device;
determine a target shooting position of the image collection device based on the first relative distance, first relative angle, the second relative distances and the relative angles, wherein a picture obtained by shooting the foreground and the background at the target shooting position has a composition that matches with a set composition strategy and the set composition strategy includes a composition about a relative position of the foreground to the background and a relative area of the foreground to the background; and
display a prompt message about the target shooting position for prompting the image collection device to move to the target shooting position.

8. The shooting apparatus of claim 7 , wherein the one or more processors are further configured to:
determine positions of the foreground and the background in a three-dimensional coordinate system where the image collection device is located based on the first relative distances, the first relative angle, the second relative distance and the second relative angle;
determine a plurality of candidate positions in the three-dimensional coordinate system;
for the plurality of candidate positions, predict a plurality of pictures obtained by shooting the foreground and the background at the plurality of candidate positions based on the positions of the foreground and the background in the three-dimensional coordinate system; and
determine the target shooting position from the plurality of candidate positions based on a matching degree between the composition of each of the plurality of pictures at the plurality of candidate positions and the set composition strategy.

9. The shooting apparatus of claim 7 , wherein the one or more processors are further configured to:
determine a shaking degree of an attitude of the image collection device in a current period based on the attitude information periodically collected by the sensor;
detect the first relative distance and the first relative angle between the foreground of the preview image and the image collection device, and detect the second relative distance and the second relative angle between the background of the preview image and the image collection device when the shaking degree of the attitude of the image collection device in the current period is less than a shaking threshold; and
recognize a non-shooting behavior, and display the preview image when the shaking degree of the attitude of the image collection device in the current period is greater than or equal to the shaking threshold.

10. The shooting apparatus of claim 7 , wherein the one or more processors are further configured to:
obtain a pressing force of a shooting control in a shooting interface collected by a pressure element; and
obtain the preview image collected by the image collection device when the pressing force falls within a target force interval.

11. The shooting apparatus of claim 10 , wherein the one or more processors are further configured to:
control the image collection device to shoot when the pressing force is greater than an upper limit of the target force interval.

12. The shooting apparatus of claim 7 , wherein the prompt message comprises at least one of a direction arrow and a rotation angle.

13. An electronic device, comprising:
a first camera configured to collect a preview image, and a second camera configured to synchronously collect a depth map of the preview image;
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Assignees

• Baidu online network technology beijing co ltd

Inventors

• Li Longchun
• Li Weiguo

Classifications

• H04N23/635 Primary

  Region indicators; Field of view indicators · CPC title

• H04N23/632

  for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters · CPC title

• H04N23/634

  Warning indications · CPC title

• H04N23/64 Primary

  Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image · CPC title

• H04N23/6812

  based on additional sensors, e.g. acceleration sensors · CPC title