Unlock instant, AI-driven research and patent intelligence for your innovation.

A Multi-View Data Acquisition Method Based on Compressive Sensing

A technology of data acquisition and compressed sensing, applied in image communication, electrical components, stereo systems, etc., can solve problems such as difficult data storage and transmission, high production costs, and complicated calibration procedures, so as to reduce system costs and improve maintainability properties, the effect of saving parallax information

Inactive Publication Date: 2017-04-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to improve the effect of three-dimensional display, it is necessary to obtain a large number of viewpoint data, that is, a large number of cameras are required, but a large number of cameras leads to a large system size, complex structure, poor maintainability, and high production costs
At the same time, the corresponding calibration procedure is complicated, and the large amount of data generated brings difficulties in storage and transmission.

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
  • A Multi-View Data Acquisition Method Based on Compressive Sensing
  • A Multi-View Data Acquisition Method Based on Compressive Sensing
  • A Multi-View Data Acquisition Method Based on Compressive Sensing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] The present invention will be further described below in conjunction with the accompanying drawings.

[0048] A multi-viewpoint data acquisition method based on compressed sensing, characterized in that it includes a sparse camera array, the sparse camera array includes T cameras, T=1, 2, 3...; the T cameras capture T*T The light field view; the T camera has a camera in each column in the T*T area, and a camera in each row;

[0049] The method includes the following steps:

[0050] Step 1) as in figure 1 As shown, the 5x5 camera array is reduced to such as figure 2 5 cameras in , these 5 cameras will capture a 5x5 light field view,

[0051] The vectorization of M (M=T) images captured by the sparse camera array can be expressed by the following mathematical formula:

[0052] I=ΦL (1)

[0053] In the formula:

[0054] I∈R m Images captured for a vectorized sparse camera array;

[0055] L∈R n The image captured by the vectorized complete camera array is also the...

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 a multi-viewpoint data collection method based on compressive sensing. The method is characterized in that a sparse camera array is involved and comprises T cameras, the T cameras capture T*T light field views, one camera is arranged in each column in a T*T region, and one camera is arranged in each line in the T*T region. Images captured by these cameras are vectorized, and after super redundant dictionary training is finished, original light field information can be restored by using some light fields collected by the sparse camera array. According to the method, the number of the cameras of a light field collection system is reduced, the system structure is simplified, the maintainability is improved, and the system cost is reduced.

Description

technical field [0001] The invention relates to the technical field of stereoscopic display, in particular to a method for collecting multi-viewpoint data based on compressed sensing. Background technique [0002] Stereoscopic display technology, especially multi-viewpoint 3D display technology needs to obtain stereoscopic effects by rendering multi-viewpoint data. The multi-viewpoint data collection based on camera array provides data required for rendering for 3D display, and the angular resolution and viewing angle of 3D display directly depend on the number and angle of cameras. The camera array has the advantages of high resolution and fast imaging time. [0003] Currently, light field acquisition equipment is mainly divided into two types: a single camera equipped with special optical devices and an array multi-camera. A single camera equipped with special optical devices can achieve the purpose of collecting images in multiple directions with only a single imaging s...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/02H04N13/00
Inventor 李伟沈春林
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS