Method of dome camera for generating panoramic image, and dome camera

A spherical camera and panoramic image technology, which is applied in image communication, image signal generator, color TV parts, etc., can solve the problems of too high image requirements and the inability to splicing into 360 panoramic images, and achieve the effect of accurate images

Active Publication Date: 2016-06-01
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology

[0005] The invention provides a method for generating a panoramic image by a dome camera and a dome camera, which are used to sol...

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  • Method of dome camera for generating panoramic image, and dome camera
  • Method of dome camera for generating panoramic image, and dome camera
  • Method of dome camera for generating panoramic image, and dome camera

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Embodiment Construction

[0106] The method for generating a panoramic image by a dome camera proposed by the present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0107] A method for generating a panoramic image by a dome camera provided by the present invention, such as figure 1 shown, including:

[0108] Step 101, the dome camera performs multiple rotations according to the set rules, and collects the image of the current position every time a rotation is completed, wherein, the dome camera performs multiple rotations according to the set rules: the dome camera rotates at two vertical In the plane, the rotation direction and the rotation step are set, and multiple rotations are performed within the set angle range.

[0109] Specifically, every time the dome camera rotates, it pauses for a set time, and collects an image at its current position when it rotates, so that a clear image can be collected.

[0110] Step 102, according to t...

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Abstract

The invention discloses a method of a dome camera for generating a panoramic image and the dome camera. The method comprises steps of: rotating the dome camera according to a set rule for multiple times and acquiring an image of a current position in each time of rotation; acquiring a curved image of the image in a world coordinate system according to a mapping relation between an image coordinate system and the world coordinate system; acquiring a curved image of the image in a dome camera coordinate system according to a mapping relation between the world coordinate system and the dome camera coordinate system; acquiring a flat image of the image in a panoramic image coordinate system according to a mapping relation between the dome camera coordinate system and the panoramic image coordinate system; and splicing the panoramic image according to the flat image, corresponding to the image of the current position, in the panoramic image coordinate system. The method may splice multiple images acquired by the dome camera into a panoramic image according to the one-to-one corresponding coordinate relations among the coordinate systems, wherein the panoramic image can be a 360-degree panoramic image.

Description

technical field [0001] The invention relates to the technical field of video image processing, in particular to a method for generating a panoramic image by a dome camera and the dome camera. Background technique [0002] Panoramic image stitching refers to spatial registration and image fusion of a set of overlapping image sequences to form a panoramic image containing each image sequence. Panoramic image stitching includes three key steps: image and processing, image registration, and image fusion. Image registration is the core part of panoramic image stitching. Its purpose is to find a space transformation that makes digital image sequences mutually Coordinate points of overlapping parts can be aligned. After image registration, in order to ensure the balance of brightness and chromaticity between different images, image fusion processing is performed on the images obtained after image registration. [0003] The existing panoramic image stitching scheme is mainly based...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235H04N9/73H04N9/04
Inventor 周璐张兴明
Owner ZHEJIANG DAHUA TECH CO LTD
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