# US 10,375,307 B2 · Method and electronic device for acquiring panoramic image

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- Number: US 10,375,307 B2
- Document ID: US10375307B2
- Status: Granted
- Kind: B2
- Application number: 15/815,036
- Filed: 2017-11-16
- Published: 2018-10-04
- Granted: 2019-08-06
- Earliest claimed: 2017-03-31
- Assignees: Lenovo (Beijing) Limited
- Applicants: Lenovo (Beijing) Co., Ltd.
- Inventors: Xiaoqing Liu
- Web page: https://patentgrep.com/patent/US10375307B2

## CPC

- H04N 23/698: for achieving an enlarged field of view, e.g. panoramic image capture
- G06T 1/0007: {Image acquisition}
- G06T 3/4038: Image mosaicing, e.g. composing plane images from plane sub-images
- H04N 23/63: by using electronic viewfinders
- G06T 2207/10004: Still image; Photographic image
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL

## Abstract

A method for acquiring a panoramic image includes controlling a display screen of an electronic device to display a viewfinder frame and a direction indicator that indicates a movement direction for the electronic device, acquiring and processing a first image to obtain a first progress indicator, arranging the first progress indicator on a first side of and close to the viewfinder frame, acquiring and processing a second image to obtain a second progress indicator, arranging the second progress indicator on the first side of and close to the viewfinder frame and moving the first progress indicator away from the viewfinder frame, acquiring and processing a third image to obtain a third progress indicator, and arranging the third progress indicator on the first side of and close to the viewfinder frame and arranging the first progress indicator on a second side of and away from the viewfinder frame.

## Claims

### Claim 1

A method comprising:
controlling a display screen of an electronic device to display a viewfinder frame and a direction indicator that indicates a movement direction for the electronic device to acquire a panoramic image;
acquiring a first image and processing the first image to obtain a first progress indicator;
arranging the first progress indicator on a first side of and close to the viewfinder frame;
acquiring a second image and processing the second image to obtain a second progress indicator;
arranging the second progress indicator on the first side of and close to the viewfinder frame and moving the first progress indicator away from the viewfinder frame;
acquiring a third image and processing the third image to obtain a third progress indicator; and
arranging the third progress indicator on the first side of and close to the viewfinder frame and arranging the first progress indicator on a second side of and away from the viewfinder frame, wherein the first side is opposite to the second side.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising:
acquiring a fourth image and processing the fourth image to obtain a fourth progress indicator; and
arranging the fourth progress indicator in the viewfinder frame and arranging the first progress indicator on the second side of and close to the viewfinder frame.

### Claim 3 (depends on 2)

The method according to claim 2, further comprising:
progressively stitching the images and saving the stitched images as the panoramic image while the images are being acquired.

### Claim 4 (depends on 2)

The method according to claim 2, further comprising:
stitching the images and saving the stitched images as the panoramic image after the fourth image is acquired.

### Claim 5 (depends on 1)

The method according to claim 1, further comprising, before arranging the first progress indicator on the second side of and away from the viewfinder frame:
determining whether a condition for arranging the first progress indicator on the second side of and away from the viewfinder frame is satisfied.

### Claim 6 (depends on 5)

The method according to claim 5, wherein determining whether the condition is satisfied includes:
obtaining a rotation angle of the electronic device; and
determining whether the condition is satisfied based on whether the rotation angle satisfies a preset condition.

### Claim 7 (depends on 5)

The method according to claim 5, wherein determining whether the condition is satisfied includes:
obtaining a similarity between the third image and the first image; and
determining whether the condition is satisfied based on whether the similarity satisfies a preset condition.

### Claim 8 (depends on 1)

The method according to claim 1, further comprising:
acquiring movement information of the electronic device;
based on the movement information, determining whether a movement of the electronic device is translational or rotational; and
in response to determining that the movement of the electronic device is translational, determining whether a condition for arranging the first progress indicator on the second side of and away from the viewfinder frame is satisfied.

### Claim 9

An electronic device comprising:
a camera;
a processor coupled to the camera; and
a display screen coupled to the processor,
wherein the processor:
controls the display screen to display a viewfinder frame and a direction indicator that indicates a movement direction for the electronic device to acquire a panoramic image;
acquires a first image and processes the first image to obtain a first progress indicator;
arranges the first progress indicator on a first side of and close to the viewfinder frame;
acquires a second image and processes the second image to obtain a second progress indicator;
arranges the second progress indicator on the first side of and close to the viewfinder frame and moves the first progress indicator away from the viewfinder frame;
acquires a third image and processes the third image to obtain a third progress indicator; and
arranges the third progress indicator on the first side of and close to the viewfinder frame and arranges the first progress indicator on a second side of and away from the viewfinder frame, wherein the first side is opposite to the second side.

### Claim 10 (depends on 9)

The electronic device according to claim 9, wherein the processor further:
acquires a fourth image and processes the fourth image to obtain a fourth progress indicator; and
arranges the fourth progress indicator in the viewfinder frame and arranges the first progress indicator on the second side of and close to the viewfinder frame.

### Claim 11 (depends on 10)

The electronic device according to claim 10, wherein the processor further:
progressively stitches the images and saves the stitched images as the panoramic image while the images are being acquired.

### Claim 12 (depends on 10)

The electronic device according to claim 10, wherein the processor further:
stitches the images and saves the stitched images as the panoramic image after the fourth image is acquired.

### Claim 13 (depends on 9)

The electronic device according to claim 9, wherein the processor further, before arranging the first progress indicator on the second side of and away from the viewfinder frame:
determines whether a condition for arranging the first progress indicator on the second side of and away from the viewfinder frame is satisfied.

### Claim 14 (depends on 13)

The electronic device according to claim 13, wherein the processor further:
obtains a rotation angle of the electronic device; and
determines whether the condition is satisfied based on whether the rotation angle satisfies a preset condition.

### Claim 15 (depends on 13)

The electronic device according to claim 13, wherein the processor further:
obtains a similarity between the third image and the first image; and
determines whether the condition is satisfied based on whether the similarity satisfies a preset condition.

### Claim 16 (depends on 9)

The electronic device according to claim 9, wherein the processor further:
acquires movement information of the electronic device;
based on the movement information, determines whether a movement of the electronic device is translational or rotational; and
in response to determining that the movement of the electronic device is translational, determines whether a condition for arranging the first progress indicator on the second side of and away from the viewfinder frame is satisfied.
