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Photo shooting orientation positioning method and device

A positioning method and technology of a positioning device, applied in the field of image processing

Active Publication Date: 2017-07-18
HAINAN VOCATIONAL TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no practical technical means to determine the precise location of the sneak shot from the photos

Method used

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  • Photo shooting orientation positioning method and device
  • Photo shooting orientation positioning method and device
  • Photo shooting orientation positioning method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0054] According to an embodiment of the present invention, an embodiment of a short text classification method is provided. It should be noted that the step S shown in the flowchart of the accompanying drawing can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowchart, in some cases steps S shown or described may be performed in a different order than here.

[0055] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Take running on a computer terminal as an example, figure 1 It is a block diagram of the hardware structure of the computer terminal according to the short text classification method of the embodiment of the present invention. like figure 1 As shown, the computer terminal 100 may include one or more (only one is shown in the figure) processors 102 (the processors 102...

Embodiment 2

[0083] The present invention provides a photo shooting orientation positioning device, comprising:

[0084] The photo to be tested acquisition module is used to obtain the photo to be tested;

[0085] An identification module, configured to identify at least three reference objects in the photo to be tested, and the at least three reference objects are not coplanar;

[0086] A coordinate system establishment module, configured to establish a three-dimensional space coordinate system including the reference object;

[0087] A calibration module, configured to obtain at least three calibration photos including the reference object; obtain coordinate information of a shooting point corresponding to each calibration photo in the three-dimensional space coordinate system;

[0088] A mapping relationship establishment module, configured to establish a mapping relationship between the position of the reference object in the photo and the shooting point according to the calibration p...

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Abstract

The invention discloses a photo shooting orientation positioning method and device, and belongs to the image processing field; the method comprises the following steps: obtaining an to-be-tested photo; identifying at least 3 reference objects in the to-be-tested photo; building a three-dimension space coordinate system containing the reference objects; obtaining at least three calibration images containing the reference objects; obtaining the coordinate information of the shooting point corresponding to each calibration image in the three-dimension space coordinate system; building a mapping relation between the reference object position in the image and the shooting point according to the calibration images; obtaining the coordinates of the shooting point of the to-be-tested photo in the three-dimension space coordinate system according to the mapping relation, thus obtaining the shooting position according to the shooting photo. The positioning method is very suitable for criminal reconnoiter, security, military and entity building three dimensional modeling.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a method and device for locating a photo shooting orientation. Background technique [0002] Illegal candid shots in digital cinemas have harmfully affected the copyrights of film creators and the operations of work studios and theaters. There are different approaches to anti-piracy. Some of these protection schemes are annoying to the audience. Other protection schemes, such as those based on lasers, are dangerous to moviegoers, or their effectiveness is uncertain. In addition, candid photography also violates the privacy of the person being photographed. [0003] In fields such as criminal investigation, if the position of the person who took the sneak shot is located according to the photos taken secretly, it has positive significance for the detection of the case. [0004] At present, there is not yet a practical technical means that can determine the exact positio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/73
CPCG06T2207/10004
Inventor 何云王桃黄海英
Owner HAINAN VOCATIONAL TECHN COLLEGE
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