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A 3D measurement and acquisition device based on virtual matrix

A measurement device and acquisition device technology, which is applied in photo interpretation, image analysis, image enhancement, etc., and can solve problems such as low resolution, high camera requirements, and large camera matrix

Active Publication Date: 2019-12-31
天目爱视(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this increases the requirements and cost of the lens, and the camera shutter and ambient light requirements are higher when shooting with a telephoto lens
[0004] To sum up, the camera matrix composed of multiple cameras has a large volume, low resolution, and high requirements on the camera

Method used

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  • A 3D measurement and acquisition device based on virtual matrix
  • A 3D measurement and acquisition device based on virtual matrix
  • A 3D measurement and acquisition device based on virtual matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] To solve the above technical problems, an embodiment of the present invention provides a 3D information acquisition / measurement device. Such as figure 1 As shown, it specifically includes: a track 101, an image acquisition device 201, an image processing device 100, a mechanical movement device 102, the image acquisition device 201 is installed on the mechanical movement device 102, and the mechanical movement device 102 can move along the track 101 to enable image acquisition The collection area of ​​the device 201 is constantly changing, and multiple collection areas at different positions in space are formed on a period of time to form a collection matrix, but there is only one collection area at a certain time, so the collection matrix is ​​“virtual”. Since the image acquisition device 201 is usually composed of cameras, it is also called a virtual camera matrix. However, the image acquisition device 201 may also be a camera, a CCD, a CMOS, a camera, a mobile phone ...

Embodiment 2

[0083] In addition to the above-mentioned way of forming a virtual matrix through orbital motion, it can also be achieved through camera rotation.

[0084] Please refer to image 3 with Figure 4 , The 3D information acquisition device includes: an image acquisition device 201 for acquiring a set of images of the target through the relative movement of the acquisition area of ​​the image acquisition device 201 and the target; the acquisition area moving device 400 is used for driving the acquisition of the image acquisition device 201 The area and the target move relative to each other; the collection area moving device 400 is a rotating shaft device in a rotating device, so that the image collection device 201 rotates along a central axis;

[0085] The image acquisition device 201 is a camera. The camera is fixedly installed on the camera fixing frame on the rotating base. A rotating shaft is connected under the rotating base. The rotating shaft is controlled to rotate by the rotat...

Embodiment 3

[0091] The virtual matrix can be a one-dimensional matrix or a two-dimensional matrix. When forming a two-dimensional matrix, it can be achieved by setting multiple tracks (but not limited to this).

[0092] Please refer to Figure 5 , Specifically includes: a first track 1011, a second track 1012, a first image acquisition unit 2011, a second image acquisition unit 2012, and an image processing device 100. It also includes a servo motor, which can drive the first image acquisition unit 2011 and the second image acquisition unit 2012 to move on the corresponding first track 1011 and the second track 1012. When the above two collection units collect photos that can be used for 3D synthesis on the corresponding tracks, their positions are the matrix points. A two-dimensional matrix point arranged in space can be formed by two tracks, that is, a two-dimensional virtual matrix can be formed.

[0093] Of course, forming a two-dimensional matrix is ​​not limited to passing through two ...

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Abstract

The invention provides a measuring device based on a virtual matrix and a related device, wherein, the measuring device comprises an image acquisition device, which is used for providing an acquisition area and acquiring corresponding images; a collection-area move device, wherein the image acquisition device is used for driving the acquisition area of the image acquisition device to move to different positions to form other acquisition areas, so that a virtual image acquisition matrix composed of a plurality of acquisition areas is formed in a certain time space, and the image acquisition device obtains images of different directions of the target object from the plurality of acquisition areas; the image acquisition device is used for driving the acquisition areas of the image acquisitiondevice to move to different positions to form other acquisition areas; an image processing device that processes the image obtained by the virtual image acquisition matrix to obtain 3D information ofthe object; a measuring device measuring a geometric size of a target object according to 3D information of the target object. For the first time, the problem of low resolution of multi-camera matrixacquisition due to the camera volume is noticed and put forward. It is proposed that the resolution can reach pixel level by forming virtual camera matrix in a certain period of time to improve the acquisition resolution.

Description

Technical field [0001] The present invention relates to the technical field of 3D measurement of objects, in particular to the technical field of 3D acquisition and length measurement of geometric dimensions of a target object using pictures. Background technique [0002] At present, 3D acquisition / measurement equipment is mainly for a specific object. After the object is determined, multiple cameras are used to collect multiple photos of the object at the same time, thereby synthesizing 3D images of the object, and using 3D point cloud data to measure the length and contour of the object. [0003] However, the use of multiple cameras results in a huge volume of the entire device. In addition, due to the fixed size of the lens and body of the current camera, the distance between adjacent cameras has a limit value (determined by the geometric size of the camera). In this case, the collection interval of multiple cameras is relatively large, so that the final 3D point cloud or image...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/70G06T5/50G01C11/08
CPCG01C11/08G06T5/50G06T7/70G06T2207/10028G06T2207/20221
Inventor 左忠斌左达宇
Owner 天目爱视(北京)科技有限公司
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