3D four-dimensional data acquisition method and device based on light field camera
A technology of light field camera and data acquisition, applied in the field of image processing, can solve the problems of personal information security hidden danger, deceived recognition system, etc.
Inactive Publication Date: 2018-08-31
天目爱视(北京)科技有限公司
View PDF6 Cites 9 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The current biometric data are all 2D data on the spatial plane. Taking the biometrics of the head and face as an example, the application of data related to the head and face stays in simple image applications, that is, it can only be viewed from a specific angle. Head and face data are processed, recognized and applied in other aspects; taking the biological characteristics of fingers as an example, the 2D method is mainly used to identify the characteristics of one or several fingers. 2D pictures, imitating 2D finger features, cheating some identification systems, and bringing great security risks to personal information security
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0060] In order to solve the above technical problems, an embodiment of the present invention provides a 3D four-dimensional data acquisition method based on a light field camera. Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0061] It should be noted that: 3D four-dimensional data in the present invention refers to the data formed by combining three-dimensional space data with time dimension data, and three-dimensional space combined with time dimension refers to: multiple sheets wit...
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
Login to View More Abstract
The invention provides a 3D four-dimensional data acquisition method and device based on a light field camera; the method comprises the following steps: receiving image data gathered by the light field camera on a present target object; carrying out multi-focus sampling for the image data and converting the data into image data of various preset image formats; preprocessing the image data of various preset image formats; fusing the preprocessed image data of various preset image formats into the image data of one preset image format, and processing the image data with the preset image format so as to obtain point cloud data; extracting characteristic point cloud information of the target object from the point cloud data, and carrying out characteristic point distance calibration accordingto the extracted characteristic point cloud information; synthesizing the point cloud data according to the calibrated distance obtained by characteristic point distance calibration, thus obtaining 3Dfour-dimensional model data of the target object. The method uses the light field camera for acquisition, thus obviously improving the acquisition efficiency.
Description
technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for collecting 3D four-dimensional data based on a light field camera. Background technique [0002] The current biometric data are all 2D data on the spatial plane. Taking the biometrics of the head and face as an example, the application of data related to the head and face stays in simple image applications, that is, it can only be viewed from a specific angle. Head and face data are processed, recognized and applied in other aspects; taking the biological characteristics of fingers as an example, the 2D method is mainly used to identify the characteristics of one or several fingers. 2D pictures, imitating 2D finger features, fooled some identification systems, and brought great security risks to personal information security. Therefore, it is necessary to collect 3D data on the biometric data. Contents of the invention [0003] In view of the ...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V20/46G06V20/40G06V20/10
Inventor 左忠斌左达宇夏伟韬
Owner 天目爱视(北京)科技有限公司