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Image generation method of fish eye lens based on outer parameter correction

An image generation and eye camera technology, applied in the field of image processing, can solve problems such as the relative pose relationship cannot meet the needs of accurate camera alignment, misalignment and ghosting, etc., and achieves practical significance, high panoramic stitching accuracy, and calibration. The method of simple effect

Active Publication Date: 2017-07-14
CHENGDU TOPPLUSVISION TECH CO LTD
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Problems solved by technology

[0003] To generate a panoramic image, it is necessary to splicing the collected original images through several fisheye cameras. If splicing is to be realized, the precise internal parameters and external parameters of each fisheye camera must be obtained; However, due to the limitations of industrial manufacturing technology, the relative pose relationship between cameras cannot meet the accurate alignment requirements of the theoretical value of the pose relationship between cameras. Stitching of acquired video images will produce obvious misalignment and ghosting

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  • Image generation method of fish eye lens based on outer parameter correction
  • Image generation method of fish eye lens based on outer parameter correction
  • Image generation method of fish eye lens based on outer parameter correction

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Embodiment Construction

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0033] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0035] An image generation method based on a fisheye camera 200, providing at lea...

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Abstract

The invention provides an image generation method of fish eye lens based on outer parameter correction, and an original plane model used for imaging. The method comprises steps of carrying out view field spherical surface model establishing: establishing corresponding view field spherical surface model of each pair of fish eye lenses according to an initial inner parameter; carrying out outer parameter correction: determining the same second feature points to be in a homonymous group in a reference view field spherical surface model, calculating a deviation distance between second feature points in each homonymous group and correcting the initial outer parameter of each fish eye lens until the sum of the deviation distances of all homonymous groups is the smallest so as to obtain the corrected outer parameters; and carrying out panoramic imaging: according to the corrected inner parameters and the corrected outer parameters, projecting images acquired by each fish eye lens in the reference spherical surface model so as to obtain panoramic images.

Description

technical field [0001] The invention relates to an image processing method, in particular to an image generation method based on external parameter correction fisheye camera. Background technique [0002] Panoramic video is a low-cost virtual reality technology based on image stitching technology, and it is a research hotspot in the field of virtual reality and computer vision technology. Panoramic stitching technology, as a cheap and intuitive implementation method, has been widely used in many fields, such as VR / AR, video shooting, video surveillance, real estate, decoration design, tourist attractions, virtual campuses, street view services, etc. market demand. In order to shoot larger and more complete high-definition panoramic images, panoramic cameras are usually composed of more than two cameras to cover a full range of viewing angles. Most consist of fisheye cameras. [0003] To generate a panoramic image, it is necessary to stitch together the original images col...

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Application Information

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IPC IPC(8): G06T3/00G06T7/80
CPCG06T3/047
Inventor 晁志超周剑余兴张明磊
Owner CHENGDU TOPPLUSVISION TECH CO LTD
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