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Smart phone photographing guiding method based on image matching

A smart phone and image technology, applied in image communication, color TV parts, TV system parts, etc., can solve problems such as difficulty in framing and achieve the effect of ensuring the best effect

Inactive Publication Date: 2012-11-28
北京知势技术服务有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides an image-matching-based smart phone camera guidance method, which can solve the existing problem of difficult viewing when using the rear camera of the mobile phone to take a single self-portrait

Method used

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  • Smart phone photographing guiding method based on image matching
  • Smart phone photographing guiding method based on image matching
  • Smart phone photographing guiding method based on image matching

Examples

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Embodiment Construction

[0027] See figure 1 , a kind of smart phone photo-guiding method based on image matching, it comprises with step:

[0028] (1) Add a sensing layer on the shooting interface of the mobile phone camera, open the mobile phone camera application, and draw a closed area X on the camera interface to show the approximate position of the subject in the final picture that the subject wants to be in , the boundary curve constituting the closed area X is recorded in the sensing layer, the absolute coordinates of the pixel point where the boundary curve is located is expressed as, the system should ensure that the area surrounded by the point row is closed, when there is a gap in the graph , the system can automatically complete according to the first-order derivative at the gap point;

[0029] (2) Open the mobile phone camera application, select the viewfinder range, take a dynamic image shooting of the subject, select the voice guidance mode or the flashlight flashing guidance mode and...

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Abstract

The invention provides a smart phone photographing guiding method based on image matching, which can solve the problem of difficulty in framing when one person carries out self-photographing by adopting a postpositional phone camera in the prior art. The smart phone photographing guiding method comprises the steps of: presetting a closed region X on a phone photographing interface before photographing, so as to be used for displaying an expected position (of a person to be photographed) on a final image; and then photographing a dynamic image of the person to be photographed by using a phone camera, carrying out image outline Y(i) extraction on each frame of the dynamic image by adopting a sobel operator, directly or indirectly guiding the camera to rotate or the person to be photographed to move according to the distance between the closed region X and the center point of an image outline Y(i) region of each frame and a position correlation between the closed region X and the image outline Y(i) through a voice prompt module or the flicker frequency of a flashlight until that the closed region X is basically coincident with the image outline Y(i), and extracting the fame of image as a final image to be stored.

Description

Technical field [0001] The invention relates to the technical field of smart phone applications, and specifically relates to an image matching-based photo-taking guidance method for a smart phone. Background technique [0002] Generally, in the process of shooting through the rear camera of a mobile phone, when it is necessary to shoot pictures from different angles or different viewing ranges, the photographer usually rotates the mobile phone camera lens or adjusts the focal length of the camera lens to adjust the shooting direction and viewing range in real time. Adjustment, but when shooting a single self-portrait, the photographer needs to first set the angle of the mobile phone camera and estimate the focal length, then fix the position of the mobile phone, and complete the shooting independently through the timing mode of the mobile phone camera. The disadvantage is that due to the shooting process, The user cannot see his / her position in the view frame in real time, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725H04N5/232H04M1/72439
Inventor 马建张科宋峥
Owner 北京知势技术服务有限公司
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