Rapid self-calibration method for lens and electronic equipment thereof
An electronic device and self-calibration technology, applied in the image field, can solve problems such as unknown or uncontrollable camera motion parameters, and achieve the effect of simple technical solution, small calculation amount and high precision
Pending Publication Date: 2020-03-31
深圳市德赛微电子技术有限公司
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Its method is not suitable for occasions where the camera motion parameters are unknown or uncontrollable
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[0039] The preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, so as to define the protection scope of the present application more clearly.
[0040] in such as figure 1 In one embodiment shown, the present application provides a method for fast self-calibration of a vehicle-mounted lens, which is applied to an electronic device including at least two cameras, and the method includes:
[0041] 100. Obtain the image coordinates of the corner point pair (A, B) and the actual physical coordinates of the overlapping area of the images captured by the first camera and the second camera in the overlapping area according to the historical calibration results;
[0042] In one implementation of this embodiment,
[0043] According to the historical calibration results, the historical cal...
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The invention relates to a rapid self-calibration method for a lens. The method is applied to the electronic equipment with at least two cameras, and comprises the following steps: acquiring image coordinates of overlapped area corner pairs (A, B) and actual physical coordinates of the overlapped area corner pairs (A, B) of images acquired by a first camera and a second camera according to a historical calibration result; expanding the overlapping region to obtain a similar overlapping region, and dividing the similar overlapping region into a detection region and a matching region; performingoverlooking projection on the class overlapping region to obtain an overlooking projection region, and processing the overlooking projection region to generate a matching angular point sequence pair(C, D); according to the matching corner point sequence pair (C, D), obtaining a transformation relational expression of a detection region and a matching region; and according to the transformation relational expression, carrying out correction processing on the coincident region corner pairs (A, B). The rapid self-calibration method provided by the invention is simple and easy to implement, small in calculated amount and high in precision.
Description
technical field [0001] The present application relates to the field of image technology, in particular to a method for fast self-calibration of a lens and electronic equipment thereof. Background technique [0002] With the enrichment of mobile electronic functions, more and more visual files such as lenses appear in our lives. Due to the imperfect possibility of lens calibration on the production line, lens loosening and re-fixation caused by long-term use, and changes in the relative position of the lens due to different bearing pressures, etc., these scenarios require lens recalibration. In the prior art, lens calibration is mainly performed by the following methods: [0003] Solution 1, based on the calibration of a specific calibration field, the calibration of a specific site generally requires laying or brushing a specific calibration template or projecting it on a specific plane to complete the calibration of the lens in a specific site and a specific lighting envir...
Claims
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Login to View More IPC IPC(8): G06T7/80G06T5/00
CPCG06T7/80G06T2207/20164G06T2207/30256G06T2207/10004G06T5/80
Inventor 夏丽敏邢彦文张荃蒋芳
Owner 深圳市德赛微电子技术有限公司