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Image cutting, splicing and outputting method based on sound source angle and face coordinate

An output method and image cropping technology, applied in the multimedia field, can solve problems such as high cost, insufficient direct switching of viewing angles, and time-consuming movement of the pan/tilt.

Pending Publication Date: 2022-03-22
GUANGZHOU LANGO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are existing technical solutions; one lens is used for tracking, optical zoom is used, and the pan / tilt is used; one lens is used for panorama, which provides the basis for tracking; but this technical solution is expensive and complex in structure; During the focusing process, it is easy to focus back and forth and affect the perception; it takes time to move the gimbal, and the switching angle of view is not direct enough; the angle of view cannot be switched in time for the meeting participants who are talking

Method used

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  • Image cutting, splicing and outputting method based on sound source angle and face coordinate

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The image cropping and splicing output method based on the sound source angle and the human face coordinates includes the following steps:

[0030] S101. Obtain image signal data information, and detect whether there is a sound source signal, and if there is no sound source signal, perform step S102;

[0031] Two or more cameras acquire image signal data information, and detect whether there is a sound source signal, and if there is no sound source signal, go to step S102.

[0032] S102. Perform face recognition on the image signal data information, and determine the coordinates of the face and the length and width of the face;

[0033] If there is no sound source signal, perform face recognition on the image signal data information, identify the face feature signal in the image signal, and determine the face coordinates and face length and width.

[0034] For example: the coordinates of the first face are (x'1, y'1), the length and width of the first face are x'1 and ...

Embodiment 2

[0040] The image cropping and splicing output method based on the sound source angle and the human face coordinates includes the following steps:

[0041] S201. Obtain image signal data information, and detect whether there is a sound source signal, and if there is a sound source signal, perform step S202;

[0042] Two or more cameras acquire image signal data information, and detect whether there is a sound source signal, and if there is a sound source signal, perform step S202.

[0043] S202. Perform sound source angle calculation processing on the sound source signal to determine the sound source angle;

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PUM

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Abstract

The invention discloses a sound source angle and face coordinate-based image cutting and splicing output method, which comprises the following steps of: acquiring image signal data information, detecting whether a sound source signal exists or not, and if the sound source signal exists, performing sound source angle calculation processing on the sound source signal to determine a sound source angle; the camera performs face recognition on the image signal data information according to the sound source angle, and determines the coordinates and the length and the width of a face emitting a sound source; matching the coordinates of the human face emitting the sound source with the coordinate area of the camera, and cutting, splicing and outputting according to the coordinates of the human face emitting the sound source and the width of the human face; by detecting whether a sound source signal exists or not, when the sound source signal does not exist, cutting, splicing and outputting are carried out according to the face coordinates and the face width; when a sound source signal exists, the camera sends out a face coordinate of a sound source according to a sound source angle, and the face coordinate and the face width are cut, spliced and output; and visual angle switching can be carried out on a person emitting a sound source in time.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a method for cutting and splicing images based on sound source angles and human face coordinates. Background technique [0002] At present, there are existing technical solutions; one lens is used for tracking, optical zoom is used, and the pan / tilt is used; one lens is used for panorama, which provides the basis for tracking; but this technical solution is expensive and complex in structure; During the focusing process, it is easy to focus back and forth and affect the perception; the movement of the gimbal takes time, and the switching angle of view is not direct enough; the angle of view cannot be switched in time for the meeting participants who are talking. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an image cropping and splicing output method based on the sound source angle and face coordin...

Claims

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Application Information

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IPC IPC(8): G06V40/16G06V10/22G06V10/32G06V10/75G06K9/62
CPCG06F18/22
Inventor 任威颜专蔡逸群
Owner GUANGZHOU LANGO ELECTRONICS TECH CO LTD