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Fisheye image conversion method and device

A conversion method, fisheye image technology, applied in the field of image processing, can solve the problems of inability to realize fisheye image conversion, low conversion efficiency, etc.

Active Publication Date: 2017-05-10
BEIJING IQIYI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the fisheye image needs to go through two conversion processes, which makes the conversion efficiency low and cannot realize the real-time conversion of the fisheye image.

Method used

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  • Fisheye image conversion method and device
  • Fisheye image conversion method and device

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Embodiment Construction

[0082] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with 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, rather than all 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 shall fall within the protection scope of the present invention.

[0083] See figure 1 , figure 1 It is a flowchart of a fisheye diagram conversion method provided by an embodiment of the present invention, including:

[0084] Step 101: Obtain a fisheye diagram to be converted.

[0085] An image taken with a fisheye lens can be called a fisheye image, which is a lens with a focal length of 16mm or shorter and an angle of view close to or equal to 180°. It is an extreme wide-angle lens, and "fisheye lens" i...

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Abstract

The embodiment of the invention provides a fisheye image conversion method and device. The method comprises: obtaining a fisheye image to be converted; converting the coordinates of each pixel in the fisheye image to the coordinates in a panorama, and establishing a mapping relation between the coordinates of each pixel in the fisheye image and the coordinates in the panorama; and according to the mapping relation, sampling the pixels corresponding to the coordinates in the panorama from the fisheye image, and converting the fisheye image to the panorama. The fisheye image conversion method and device do not need the steps of correcting the fisheye image to a planar graph without distortion and then converting the planar graph without distortion to the panorama to reduce the steps and links in the process, improve the conversion efficiency so as to realize the real-time conversion of the fisheye image obtained in real time.

Description

Technical field [0001] The invention relates to the technical field of image processing, in particular to a fisheye diagram conversion method and device. Background technique [0002] In recent years, with the rapid development of VR (Virtual Reality, virtual reality), various hardware and software applications for VR have emerged one after another. Among them, panoramic video VR has become a hot spot for technology research and development and product content innovation, and is widely used in virtual theaters. Panorama games, panorama education, panorama medical treatment, panorama tourism and many other fields have broad prospects and great economic value. [0003] At present, many camera equipment can only capture a small angle of view when shooting panoramic images, generally less than 120°. But in many cases, it is necessary to take a panoramic image with a larger angle of view, which requires a fisheye lens or equipment for shooting. [0004] However, when shooting with a fis...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/80
Inventor 诸加丹
Owner BEIJING IQIYI TECH CO LTD
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