A Panoramic Image Stitching Method Based on Optimal Seam Lines
An optimal stitching line, panoramic image technology, applied in the field of computer vision, can solve problems such as ghosting, errors, etc., to optimize the transition zone, improve the quality of stitching, and reduce damage to texture consistency.
Active Publication Date: 2022-03-01
南京乾联科技有限公司
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[0003] Purpose of the invention: In order to overcome the problems existing in the prior art, the present invention discloses a panoramic image stitching method based on optimal suture lines, which can effectively solve problems such as ghosting, errors, and visible stitching in image stitching, and improve Image stitching quality, so that the stitched panoramic image has a good visual effect
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[0052] The present invention will be further described below in conjunction with the accompanying drawings.
[0053] The invention discloses a panoramic image mosaic method based on an optimal suture line, such as figure 1 As shown, first input an image sequence with spatial overlapping regions, and preprocess each image in the image sequence to obtain the image to be spliced. The preprocessing mainly includes denoising, white balance, brightness correction, etc., and then every two images The images to be stitched with spatially overlapping regions perform the following operations:
[0054] Step S1, image registration: matching the two images to be stitched with spatially overlapping regions, and using a feature matching algorithm to obtain the mapping relationship between the matched feature points.
[0055] The feature matching algorithm can use ORB algorithm, SIFT algorithm, SURF algorithm, LBP algorithm.
[0056] After the image registration is completed, the two images...
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The invention discloses a panoramic image mosaic method based on an optimal suture line, belonging to the field of computer vision, comprising: using a feature matching algorithm to match images to be mosaiced with spatially overlapping regions; calculating a homography matrix, and performing Global homography transformation, projecting to the same plane, aligning overlapping areas; defining image energy functions based on color, gradient and similarity, and searching for an optimal suture line by minimizing image energy functions in overlapping areas based on dynamic programming; The images are spliced into a panoramic image according to the best seam line, which is expanded from the best seam line to both sides on the panoramic image, and the best fusion area is selected according to the gray feature function; the best fusion area is merged by using the image fusion algorithm to obtain The final panoramic image. The method of the invention effectively improves the quality of the panoramic image, and is suitable for practical application fields such as medical images, remote sensing images, and virtual reality.
Description
technical field [0001] The invention belongs to the field of computer vision, and in particular relates to a panoramic image splicing method based on an optimal suture line. Background technique [0002] Panoramic image stitching uses computer vision technology to perform misalignment correction and chromatic aberration fusion on an image sequence with spatially overlapping areas, and finally obtains a panoramic image containing the information of each image in the sequence. At present, there are few hardware devices for obtaining panoramic images, and only machines equipped with fisheye lenses can obtain images with wide viewing angles. Due to the limitations of hardware equipment, when large-view images are required, generally, image sequences with spatially overlapping regions are obtained by shooting images of the same scene from different perspectives, and then image stitching methods are used to generate panoramic images. Image stitching methods mainly include image p...
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IPC IPC(8): G06T3/40G06T3/00
CPCG06T3/4038G06T3/14
Inventor 张嘉超孟琳刘洋洋童莹黄云彬曹雪虹
Owner 南京乾联科技有限公司