Method for realizing zooming through wide-angle photographing component and long-focus photographing component

Abstract

The invention provides a method for realizing zooming through a wide-angle photographing component and a long-focus photographing component. The method is applied to an electronic device provided with the wide-angle photographing component and the long-focus photographing component. The electronic device can control the photographing components and can respectively capture a wide-angle image and a long-focus image of the same scenic spot and can respectively perform exposure and white balance adjustment processing on the images so that the exposure and the white balance of the two images are enabled to be consistent; robust image matching operation is performed on the images so that the corresponding pixel points on the images are enabled to be mutually matched; and finally offset deformation is performed on the pixel points of the long-focus image according to the dense optical flow field of the offset of all the pixel points on the long-focus image acquired through the matching operation, and the pixel points are mutually matched with the corresponding pixel points on the wide-angle image and then the pixel points can be fused with the corresponding pixel values on the wide-angle image so that image deformation fusion processing can be completed, and accurate and clear optical zooming can be realized.

Description

technical field [0001] The invention relates to an image processing method, in particular to a method for realizing accurate and clear optical zoom by using a wide-angle camera component and a telephoto camera component. Background technique [0002] In recent years, with the rapid development of electronic technology, the camera function of smartphones has become more and more powerful, and it has gradually replaced the general camera. In order to create differentiation, major smartphone manufacturers are constantly improving their products. The camera specifications and functions of smartphones, such as: improving image quality, enhancing Selfie function, increasing aperture, enhancing optical image stabilization (OIS) function, accelerating focus speed, supporting manual professional mode, etc., these camera specifications and functions Although improvements have been generally implemented in various smart phones, the design of "dual cameras" is currently the most promising...

AI Technical Summary

Problems solved by technology

However, no matter what kind of dual-lens design mentioned above, it is impossible to achieve a precise and clear optical zoom mechanism

[0007] Taking the above-mentioned various smartphones with dual-lens design as an example, the real reason why they cannot achieve precise and clear optical zoom mechanism is that the dual-lens equipped on them is only a standard lens and a wide-angle lens with a large aperture. Therefore, , when trying to achieve optical zoom, the following problems often occur during the zooming process:

[0010] According to the above, based on the current development and history of dual-lens smartphones, the applications and designs of dual-lens are quite diverse and divergent, such as: improving 3D performance, increasing depth of field, tracking faces, super wide-angle, adding pixels, However, if the dual-lens design is only to make up for the shortcomings of the large aperture and wide-angle design of the single lens, but does not have a precise and clear optical zoom mechanism, it will be difficult to achieve the optical zoom function provided by professional-grade SLR cameras.

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