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Image mosaic processing method and device

A technology of image stitching and processing method, which is applied in the field of image processing, can solve problems such as stitching gaps, achieve the effects of small stitching gaps, uniform error dispersion, and improved stitching quality

Active Publication Date: 2016-10-19
SHENZHEN TENCENT COMP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to overcome the problem of easy stitching gaps caused by using the image features of images corresponding to a single scene point in the prior art for image stitching, and to provide a new image stitching processing method and device

Method used

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no. 1 example

[0020] figure 2 It is a schematic flowchart of the image mosaic processing method in the first embodiment of the present application. Such as figure 2 As shown, the image splicing processing method in this embodiment includes:

[0021] Step S11: Acquire images corresponding to a plurality of scene points. The images corresponding to each scene point include a reference image and an image to be stitched. The reference image and the image to be stitched are collected by image acquisition devices with different viewing directions, and The reference image and the image to be spliced ​​have an overlapping area.

[0022] In the embodiments of the present application, the images corresponding to the same scene point come from images collected by image acquisition devices (including cameras, image sensors, etc.) with different viewing directions on the same scene at the same shooting point. The shooting point refers to the shooting location of the image, that is, the geographic l...

no. 2 example

[0035] Figure 4 It is a schematic flowchart of the image mosaic processing method in the second embodiment of the present application. Such as Figure 4 As shown, the image splicing processing method in this embodiment includes:

[0036] Step S21: Acquire images corresponding to a plurality of scene points. The images corresponding to each scene point include a reference image and an image to be stitched. The reference image and the image to be stitched are collected by image acquisition devices with different viewing directions, and The reference image and the image to be spliced ​​have an overlapping area. This step is the same as the corresponding step in the first embodiment, and will not be repeated here.

[0037] Step S22: Extract matching interest points between the reference image corresponding to each scene point and the image to be stitched.

[0038] In this embodiment, step S22 may further include:

[0039] Step S221: Perform preprocessing on the reference ima...

no. 3 example

[0057] Figure 5 It is a schematic structural diagram of an image mosaic processing device in the third embodiment of the present application. Such as Figure 5 As shown, the image mosaic processing device 30 in this embodiment can implement the image mosaic processing method in the first embodiment of the present application, and the image mosaic processing device 30 can specifically include: an image acquisition module 31, a matching interest point extraction module 32, a matrix Calculation module 33 and image splicing module 34.

[0058] The image acquisition module 31 is used to acquire images corresponding to a plurality of scene points. The images corresponding to each scene point include a reference image and an image to be spliced. The reference image and the image to be spliced ​​are obtained by image acquisition devices with different viewing directions. acquisition, and the reference image and the image to be spliced ​​have an overlapping area. The matching inter...

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Abstract

The invention provides an image stitching processing method and device. The method comprises the following steps of: acquiring images which correspond to multiple scene points, wherein an image which corresponds to each scene point comprises a reference image and to-be-stitched images, the reference image and the to-be-stitched images are acquired by different image acquisition devices in the view direction, and the reference image and the to-be-stitched images have overlap areas; respectively extracting matching interest points between the reference image and the to-be-stitched images which correspond to each scene point; estimating rotation matrixes and offset matrixes among the different image acquisition devices in the view direction by utilizing the matching interest points which correspond to the scene points; and respectively stitching the images which correspond to all the scene points according to the rotation matrixes and the offset matrixes. According to the image stitching processing method and device provided by the invention, external references of the image acquisition devices are estimated by utilizing the matching interest points of the images which correspond to the scene points to stitch the images which correspond to all the scene points, and therefore, errors brought by the image acquisition devices can be more equally dispersed, and the stitching quality of the images is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to an image splicing processing method and device. Background technique [0002] With the progress and development of the Internet, electronic maps have become an Internet application that is closely related to people's lives. People's daily life and travel are gradually inseparable from electronic maps. However, the traditional two-dimensional electronic map can only represent information such as roads and buildings limitedly due to abstract symbolic representation and insufficient precision. For many users, the use of two-dimensional electronic maps is relatively obscure, and cannot meet people's needs for more accurate, detailed, and more usable maps. Panoramic maps have emerged as the times require. [0003] As a new electronic map service, panorama map has gradually become a hot spot for Internet map manufacturers. At present, most of the panoramic maps nee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50G06T3/40
Inventor 桂天宜
Owner SHENZHEN TENCENT COMP SYST CO LTD