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Video sequence image splicing method and device

A video sequence and image technology, applied in the field of video sequence image splicing methods and devices, can solve problems such as distortion, misaligned images, and difficulty in applying image splicing.

Active Publication Date: 2020-05-05
EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods of image stitching, such as feature extraction and influence fusion, are not precise enough, which can easily lead to ghosting, misalignment, and image distortion in the images generated after stitching, and are difficult to apply to this type of multi-directional image stitching.

Method used

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  • Video sequence image splicing method and device
  • Video sequence image splicing method and device

Examples

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no. 1 example

[0058] See figure 1 , shows a method flowchart of a video sequence image splicing method provided by the first embodiment of the present invention. Concrete described methods include:

[0059] Step S10: acquiring the first image and the second image;

[0060] Step S20: performing SIFT feature point detection on the first image to obtain a plurality of first feature points; performing SIFT feature point detection on the second image to obtain a plurality of second feature points;

[0061] Step S30: Based on the first feature point and the second feature point, determine the overlapping area when the first image and the second image are fused;

[0062] Step S40: Assigning weights to the first pixel and the second pixel at the overlapping position of each pixel in the overlapping area to obtain a first weight value and a second weight value; wherein, the first weight value and the second The sum of the weight values ​​is 1, the first pixel and the first weight value correspond...

no. 2 example

[0100] Based on the same inventive concept, the second embodiment of the present invention provides a video sequence image splicing device 300 . Figure 5 A block diagram of functional modules of a video sequence image splicing device 300 provided in the second embodiment of the present invention is shown.

[0101] The device 300 includes:

[0102] An acquisition module 301, configured to acquire a first image and a second image;

[0103] The feature point processing module 302 is configured to perform SIFT feature point detection on the first image to obtain a plurality of first feature points; perform SIFT feature point detection on the second image to obtain a plurality of second feature points;

[0104] An overlapping matching module 303, configured to determine an overlapping area when the first image and the second image are fused based on the first feature point and the second feature point;

[0105] A weight assignment module 304, configured to assign weights to the ...

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Abstract

The invention discloses a video sequence image splicing method and device, and the method comprises the steps: obtaining a first image and a second image; detecting SIFT feature points of the first image to obtain a plurality of first feature points, and detecting SIFT feature points of the second image to obtain a plurality of second feature points; determining an overlapping region when the first image and the second image are fused based on the first feature point and the second feature point; allocating weights to the first pixel and the second pixel at each pixel overlapping position in the overlapping region to obtain a first weight value and a second weight value; and splicing the first image and the second image at each pixel overlapping position based on the pixel value of the first pixel, the first weight value, the pixel value of the second pixel and the second weight value to obtain a spliced image. According to the invention, ghosting, ghosting, dislocation and the like are avoided, and image distortion after overlapping region fusion is also avoided.

Description

technical field [0001] The invention relates to the technical field of digital image processing and pattern recognition, in particular to a video sequence image splicing method and device. Background technique [0002] In the fields of video surveillance, virtual reality, surveying and mapping remote sensing, intelligent transportation, robot vision and other fields, it is necessary to expand the sensing range of the sensor, which not only improves the system's perception of the surrounding world, but also enhances the applicability of the system. However, the field of view of a single image of a small scene is limited, which can no longer meet the practical application requirements of modern community monitoring, virtual experience, aviation monitoring, and automatic control. Although fisheye lenses, wide-angle lenses, and special panoramic cameras can obtain wide-angle large-scene images, these devices are expensive, have severe distortion, and are complicated to use, so t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T7/33
CPCG06T3/4038G06T7/33Y02T10/40
Inventor 薛志东石强唐静卢璟祥曾喻江薛森原
Owner EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH
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