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A 720 panoramic deployment monitoring method based on opengl

A panorama and image technology, applied to the details of image stitching, image data processing, instruments, etc., can solve the problems of ineffective image stitching, poor experience, complex processing process, etc., to achieve high processing efficiency, simple steps, and strong sense of reality Effect

Active Publication Date: 2019-03-12
HAOYUN TECH CO LTD
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Problems solved by technology

[0003] Due to the relatively small overlapping areas of the double fisheye lens, using traditional algorithms to extract feature points may lead to sparse feature points that cannot be matched correctly, resulting in invalid image splicing; if two fisheye images are respectively mapped into hemispheres through a certain relationship mapping, Then an image is rotated 180 degrees and stitched together, the stitching part will have obvious gaps, and the experience will be very poor; the current 720-degree stitching method of double fisheye lens, the existing technology is to filter the pixels of the overlapping area after determining the position of the overlapping area , using the least squares method to fit the color deviation conversion parameters, and then perform color conversion to obtain a smooth transition effect at the splicing, but the processing process is complicated, the efficiency is low, and the processing effect is general

Method used

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  • A 720 panoramic deployment monitoring method based on opengl
  • A 720 panoramic deployment monitoring method based on opengl
  • A 720 panoramic deployment monitoring method based on opengl

Examples

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Embodiment 1

[0029] Example 1, such as figure 1 , figure 2 As shown, to create a mask image, first use a checkerboard to calibrate the camera and then obtain the internal parameters of the Pisces-eye lens. Assume that the internal parameters obtained by the left lens are The distortion parameter of the left lens is (k l1 k l2 k l3 k l4 ), where f lx , F ly Are the focal length scale factors on the U axis and V axis of the image, (C lx C ly ) Is the principal point coordinates of the image. Similarly, the internal reference of the right lens is The distortion parameter of the right lens is (k r1 k r2 k r3 k r4 ), according to multiple tests in the experiment, take As the weight of the image fusion part is more appropriate, it can be written as [α, β]. According to the projection model of the fisheye image, a polynomial method is used to calculate the projection function. The projection function is: r=theta+k 1 ·Theta 3 +k 2 ·Theta 5 +k·theta 7 +k 4 ·Theta 9 , Where theta is the inci...

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Abstract

The invention belongs to the technical field of video monitoring, in particular to a 720 panoramic deployment monitoring method based on opengl. Concretely comprising the following steps: a, creatinga mask image; B, establishing a mathematical model for calculating vertex coordinate and texture coordinates; C, image rendering and displaying; D, hot spot area addition and operation. The inventionachieves the effect of smooth transition by creating a mask map with alpha value of the same size as the original image to carry out the fusion of the splicing positions, and the steps are simpler, the processing efficiency is high, and the realistic feeling and the sense of presence of the picture are stronger.

Description

Technical field [0001] The present invention belongs to the technical field of video monitoring, and particularly relates to an opengl-based 720 panoramic unfolding monitoring method. Background technique [0002] Image splicing technology first performs automatic registration of a set of overlapping image sequences in space, and then interpolates and fuses them, and finally generates images with a wide viewing angle. Based on the technology of multi-channel video splicing, it is necessary to perform image preprocessing for each image, find feature points, then feature matching, and then perform operations such as image fusion, which requires more resources. In recent years, with the development of panoramic technology, the application of double fisheye wide-angle lens is more and more widely used in surveillance, which can achieve no dead angle surveillance. Through splicing technology, the realism and sense of scene of the picture are enhanced. [0003] Since the overlap area of...

Claims

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Application Information

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IPC IPC(8): G06T3/00G06T3/40G06T5/00G06T5/50G06T7/40G06T7/80G06T7/90
CPCG06T3/4038G06T5/50G06T7/40G06T7/80G06T7/90G06T2207/20221G06T2200/32G06T3/047G06T5/70
Inventor 王锦文
Owner HAOYUN TECH CO LTD
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