Method for obtaining a picture and multi-camera system
AssigneeHuawei Technologies Co., Ltd.
InventorsOnay Urfalioglu, Giovanni Cordara
Life of this patent
Estimating the term…
Abstract
A method and a multi-camera system for obtaining pictures with improved image quality. At least two cameras are used for each capturing an image, and a fast shooting mode is employed. The fast shooting mode may work in a preprocessing mode, in which the captured image of highest sharpness is acquired as a final picture, or may work in a post processing mode, in which multiple captured images are acquired, and are then post-processed to obtain a final picture of high image quality. In both modes it may be automatically determined, whether to activate the fast shooting mode or not. The determination is based on a relative movement of the multi-camera system to an object of interest, or is based on a shooting behavior of the user.
Claims10
A method for obtaining a picture with a multi-camera system, the method comprising:
- detecting a fast shooting mode condition;
- capturing a first image with a first camera when the fast shooting mode condition is detected;
- capturing a second image with a second camera when the fast shooting mode condition is detected;
- evaluating a first sharpness of a first part of the first image;
- evaluating a second sharpness of a second part of the second image;
- setting a first exposure time for the first camera based on the first sharpness;
- setting a second exposure time for the second camera based on the second sharpness;
- capturing a third image with the first exposure time;
- capturing a fourth image with the second exposure time;
- and
- obtaining the picture based on the third image and the fourth image.
A multi-camera apparatus for obtaining a picture, the multi-camera apparatus comprising:
- a first camera;
- a second camera;
- a processor in communication with the first camera and the second camera;
- the processor configured to:
- detect a fast shooting mode condition;
- evaluate a first sharpness of a first part of a first image captured by the first camera when the fast shooting mode condition is detected;
- evaluate a second sharpness of a second part of a second image captured by the second camera when the fast shooting mode condition is detected;
- set a first exposure time for the first camera based on the first sharpness;
- set a second exposure time for the second camera based on the second sharpness;
- and
- obtain the picture based on a third image captured with the first exposure time and a fourth image captured with the second exposure time.
A non-transitory computer readable storage medium comprising program instructions that when executed by a processor of a multi-camera apparatus cause the multi-camera apparatus to:
- detect a fast shooting mode condition;
- evaluate a first sharpness of a first part of a first image captured by the first camera when the fast shooting mode condition is detected;
- evaluate a second sharpness of a second part of a second image captured by the second camera when the fast shooting mode condition is detected;
- set a first exposure time for the first camera based on the first sharpness;
- set a second exposure time for the second camera based on the second sharpness;
- and
- obtain the picture based on a third image captured with the first exposure time and a fourth image captured with the second exposure time.
Dependencies are inferred from the claim text.