Distance parameter calculation method, dual camera module and electronic equipment

Abstract

The invention provides a distance parameter calculation method and a dual camera module and electronic equipment applying the method. The distance parameter calculation method is used to calculate the distance parameter related to the dual camera module based on the parallax value between the first image and the second image captured by the dual camera module, including: establishing a relationship between the distance parameter and the parallax value A relational expression, the relational expression is the sum of the product of at least two parallax terms and at least two corresponding coefficients, and the parallax term is the power of the parallax value; the subject is photographed with a dual camera module at at least two predetermined distances, and calculating at least two disparity values ​​of the object between the first image and the second image; and calculating at least two corresponding coefficients based on the at least two predetermined distances and the at least two disparity values, thereby determining The relational formula. Through the distance parameter calculation method, the dual camera module and the electronic device according to the present invention, fast ranging or fast focusing can be realized.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a distance parameter calculation method of a dual camera module, and a dual camera module and electronic equipment using the distance parameter calculation method. Background technique [0002] At present, more and more mobile phones are beginning to apply dual camera configurations. Dual cameras can provide more shooting possibilities without increasing the thickness of the module. [0003] Usually, in a dual-camera configuration, the two side-by-side cameras are not exactly the same. Generally, one is a wide-angle lens and the other is an optical zoom lens. For smartphone cameras, digital zoom is generally used to enlarge the middle part of the screenshot from the original imaging, and the picture quality drops significantly, while optical zoom can keep the clarity of the picture while zooming in on the viewfinder area, that is, lossless zoom. The dual-camera setup can better ...

AI Technical Summary

Problems solved by technology

[0006] However, due to the high requirements of the algorithm for the dual-camera configuration, there are still only a handful of algorithms with good effects that can be actually applied to mobile phones, and the correction in the early stage is relatively complicated.

In addition, due to the need to perform correction and other processing on the two captured images, the processing speed will be greatly reduced

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