Image viewpoint transformation method based on single input image

A technology of input image and viewpoint transformation, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as poor effect, low applicability and efficiency

Inactive Publication Date: 2014-07-30
NANJING UNIV
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The significant disadvantage of this method is that it requires multiple input images or requires a lot of human interaction to accurately reconstruct the 3D s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image viewpoint transformation method based on single input image
  • Image viewpoint transformation method based on single input image
  • Image viewpoint transformation method based on single input image

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0137] Example

[0138] The hardware environment used for the test in this embodiment is: Intel Core i3-2100CPU 3.1GHz main frequency, 4G memory. The software environment is Microsoft Visual Studio software 2008 version, Matlab software 2012a version and Microsoft Windows7 operating system flagship version. For the specific process, see Figure 4 Examples of implementation.

[0139] In this example, the calculation and solution time varies from one hundred milliseconds to several hundred milliseconds according to the difference in grid density generated by the input image. Such as Figure 4 As shown, the method of the present invention first interacts with the input image. The bold solid line marks the implicit cuboid main structure obtained by the interaction, and the remaining dashed lines are the feature lines manually marked by the user and the designated image boundaries; On the one hand, the constrained Delaunay method is used to triangulate the image. On the other hand, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an image viewpoint transformation method based on a single input image. The method comprises the following steps: step one, interactively deducting a cube structure contained in an image and marking a typical line in the image; step two, reconstructing a three-dimensional scene through combination with the space characteristics of a cube object by use of the imaging principle of a pinhole camera, the three-dimensional scene being capable of completely simulating a real three-dimensional scene during viewpoint transformation; step three, under the condition that a focal length is not changed, through the viewpoint transformation, projecting the reconstructed three-dimensional scene to an image plane corresponding to a new viewpoint; step four, according to interaction constraints, performing Delaunay triangle gridding with constraints; step five, by taking a scene theme structure constraint obtained through reprojection in step three as deformation driving, solving a grid deformation energy equation formed in step four by use of a method for solving an energy equation; and step six, by use of a target grid obtained through solving, mapping grid textures corresponding to the target grid in an original image one by one to generate a target image.

Description

technical field [0001] The invention relates to an image viewpoint transformation method based on a single input image, which belongs to the field of computer image processing and multimedia information technology processing. Background technique [0002] With the improvement of digital camera hardware and the development of image editing software, people can more easily obtain high-quality images. However, the photos taken by a large number of photographers are often unnatural due to the selection of the angle of view. For example, a photographer may take a picture of a building that was originally perpendicular to the ground, making the shooting effect unnatural. How to correct such a tilted photo of the main structure has a very good application value. In this case, people began to study the problem of image viewpoint conversion. The traditional method is to first use multiple images of the same scene for registration, then perform 3D reconstruction, and then use the ex...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T17/00
Inventor 张贵平郭延文蓝自立汪粼波
Owner NANJING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap