CN215338208U - Image acquisition equipment suitable for three-dimensional size detects - Google Patents
Image acquisition equipment suitable for three-dimensional size detects Download PDFInfo
- Publication number
- CN215338208U CN215338208U CN202120781075.3U CN202120781075U CN215338208U CN 215338208 U CN215338208 U CN 215338208U CN 202120781075 U CN202120781075 U CN 202120781075U CN 215338208 U CN215338208 U CN 215338208U
- Authority
- CN
- China
- Prior art keywords
- plane
- laser
- image acquisition
- acquisition device
- dimensional size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application discloses image acquisition equipment suitable for three-dimensional size detects includes: the device comprises a plane image acquisition device, a laser emission device, a rotary platform, a driving device, an angle feedback device and a controller; the driving device is used for driving the rotating platform to rotate around a rotating axis, and the rotating axis is approximately parallel to a laser plane of the laser emitting device; the angle feedback device is used for converting the change of the rotating position of the rotating platform into an electric feedback signal; and the controller can control the plane image acquisition device according to the electric feedback signal output by the angle feedback device so as to enable the plane image acquisition device to acquire the patterns of the laser lines projected on the object by the laser surface of the laser emission device when the rotary platform is positioned at a plurality of preset rotating positions. The image acquisition equipment has the advantages that the structure is reasonable and reliable, and the three-dimensional detection can be realized.
Description
Technical Field
The application relates to an image acquisition device, in particular to an image acquisition device suitable for three-dimensional size detection.
Background
With the development of optical camera technology, more and more image acquisition schemes are used in industrial production lines for product detection. In the existing scheme, an optical camera is adopted to obtain an image in a moving scanning mode so as to realize detection of two-dimensional shapes and sizes, the defect of the scheme is that the camera needs translational motion for scanning, but the translational motion is often supported by a precise guide rail, and the space occupation of camera equipment is large due to the motion.
There is no image acquisition device that can realize three-dimensional detection without linear scanning.
Disclosure of Invention
An image acquisition apparatus adapted for three-dimensional inspection, comprising:
the plane image acquisition device is used for acquiring a plane image;
a laser emitting device for emitting a laser plane,
the plane image acquisition device and the laser emission device are fixed to the rotating platform so that an included angle between an imaging plane of the plane image acquisition device and a laser plane of the laser emission device is a preset angle;
the driving device is used for driving the rotating platform to rotate around a rotating axis, and the rotating axis is parallel to a laser plane of the laser emitting device;
the angle feedback device is used for converting the change of the rotating position of the rotating platform into an electric feedback signal;
and the controller can control the plane image acquisition device according to the electric feedback signal output by the angle feedback device so as to enable the plane image acquisition device to acquire the patterns of the laser lines projected on the object by the laser surface of the laser emission device when the rotary platform is positioned at a plurality of preset rotating positions.
Further, the laser emitting apparatus includes:
a laser generator for generating laser light;
the optical element at least comprises an arc-shaped light-emitting surface.
Further, the imaging plane of the plane image acquisition device is obliquely intersected with the laser plane of the laser emitting device.
Further, the rotation axis is parallel to an imaging plane of the planar image acquisition device.
Furthermore, the plane image acquisition device comprises a lens, and the optical axis of the lens is obliquely intersected with the laser surface of the laser emission device in front of the lens.
Further, the laser emitting device is arranged outside the visual angle range of the plane image acquisition device.
Further, the projection of the planar image acquisition device on a plane perpendicular to the rotation axis is different from the projection of the laser emitting device on the plane.
Further, a projection of the rotation axis of the rotation stage in a plane perpendicular to the rotation axis is located outside a projection of the planar image acquisition device in the plane.
Further, a projection of the rotation axis of the rotation stage in a plane perpendicular to the rotation axis is located outside a projection of the planar image acquisition device in the plane.
Further, the plane image acquisition device and the laser emission device are respectively arranged on two sides of the rotation axis of the rotating platform.
The application has the advantages that: the image acquisition equipment is reasonable and reliable in structure and can realize three-dimensional detection.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is an external view schematically illustrating an image capturing apparatus suitable for three-dimensional size detection according to an embodiment of the present application;
FIG. 2 is a schematic perspective view of the interior of the outer shell of the embodiment shown in FIG. 1;
FIG. 3 is a schematic top view of the embodiment of FIG. 1;
FIG. 4 is a schematic view of the front view mechanism of the embodiment shown in FIG. 1;
FIG. 5 is a schematic view of a viewing angle of the planar image capturing device and a laser plane of the laser emitting device when the embodiment shown in FIG. 1 is viewed from a top view;
FIG. 6 is a schematic view of the portion of FIG. 4 covering the area during rotation of the rotary platform;
fig. 7 is a schematic view of a laser plane of the laser transmitter in side view in the embodiment of fig. 1.
The meaning of the reference symbols in the figures:
the image-capturing device (200) is,
the housing 201 is provided with a plurality of slots,
the window (202) is provided with a window,
the plane-view collecting means 203 is provided with,
the control unit 204 is provided with a control unit,
the platform 205 is rotated in such a way that,
the laser emitting device 206 is provided with a laser emitting device,
an angle feedback device 207 is provided on the base,
a drive unit 208.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 7, an image pickup apparatus suitable for three-dimensional size detection includes: the device comprises a shell, a window, a plane image acquisition device, a laser emission device, a rotating platform, a driving device, an angle feedback device and a controller.
The housing serves to protect the internal components and devices, and the viewing window provides the field of view required for the scanned image while also providing protection to the interior of the housing.
The plane image acquisition device is used for acquiring a plane image; the laser emitting device is used for emitting a laser plane. Specifically, the laser emitting device includes: the laser generator is used for generating laser; the optical element at least comprises an arc-shaped light-emitting surface. The light-emitting surface can be a cylindrical side surface with an axis vertical to the laser surface or a part of the cylindrical side surface.
The rotating platform is used for bearing the planar image acquisition device and the laser emission device, and the planar image acquisition device and the laser emission device are fixed to the rotating platform so that an included angle between an imaging plane of the planar image acquisition device and a laser plane of the laser emission device is a preset angle. As an extension, the preset angle may be adjustable, i.e. manually adjustable, or may be automatically adjustable, and the angle may have a plurality of gears. The angle should be fixed and not adjustable when the rotary platform is rotated.
The drive device is used for driving the rotary platform to rotate around a rotation axis, and the rotation axis is parallel to the laser plane of the laser emitting device. Specifically, the driving device may be a brushless motor, and further, the driving device may be a stepping motor. The driving device can directly drive the rotating platform to rotate and also indirectly drive the rotating platform to rotate through the transmission mechanism.
The angle feedback device is used for converting the change of the rotating position of the rotating platform into an electric feedback signal. In particular, the angular feedback device may be an encoder, in particular a rotary encoder, which may convert the angular displacement into a varying electrical signal, i.e. an electrical feedback signal.
The controller can control the plane image acquisition device according to the electric feedback signal output by the angle feedback device so that the plane image acquisition device acquires the patterns of the laser lines projected by the laser surface of the laser emission device on the object when the rotary platform is at a plurality of preset rotating positions. Namely, when the rotary platform rotates to a specific position, the angle feedback device and the controller can trigger the plane image acquisition device to acquire an image.
The controller is electrically connected with at least the angle feedback device, the driving device and the plane image acquisition device.
In order to better realize the matching of the image acquisition and the laser plane, the rotation axis is parallel to the imaging plane of the plane image acquisition device. The plane image acquisition device comprises a lens, and the optical axis of the lens is obliquely intersected with the laser surface of the laser emission device in front of the lens. The laser emitting device is arranged outside the visual angle range of the plane image acquisition device. The design can maximize the image acquisition range to effectively cooperate with the laser plane to realize three-dimensional detection.
In addition, the projection of the planar image acquisition device onto a plane perpendicular to the axis of rotation is different from the projection of the laser emission device onto this plane. The projection of the rotation axis of the rotation stage in a plane perpendicular to the rotation axis is located outside the projection of the planar image acquisition arrangement in this plane. The projection of the rotation axis of the rotation stage in a plane perpendicular to the rotation axis is located outside the projection of the planar image acquisition arrangement in this plane. The plane image acquisition device and the laser emission device are respectively arranged on two sides of the rotation axis of the rotating platform.
Therefore, the effective range of the collected image cannot be swept by the device due to rotation when the device rotates, and the scanning effect cannot be achieved.
The image acquired by the plane image acquisition equipment at each rotating position is processed by a system, a three-dimensional point line profile (actually a discrete point profile) of a single laser plane can be obtained according to the image and the previously calibrated position relation, and then the three-dimensional point line profile is spliced according to the corresponding relation of the rotating positions and the corresponding coordinate system, so that the profile data of the detected object is obtained, and the measurement of the three-dimensional size is realized.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. An image acquisition apparatus adapted for three-dimensional inspection, comprising:
the plane image acquisition device is used for acquiring a plane image;
a laser emitting device for emitting a laser plane,
the method is characterized in that:
the image acquisition equipment suitable for three-dimensional size detection further comprises:
the plane image acquisition device and the laser emission device are fixed to the rotating platform so that an included angle between an imaging plane of the plane image acquisition device and a laser plane of the laser emission device is a preset angle;
the driving device is used for driving the rotating platform to rotate around a rotating axis, and the rotating axis is parallel to a laser plane of the laser emitting device;
the angle feedback device is used for converting the change of the rotating position of the rotating platform into an electric feedback signal;
and the controller can control the plane image acquisition device according to the electric feedback signal output by the angle feedback device so as to enable the plane image acquisition device to acquire the patterns of the laser lines projected on the object by the laser surface of the laser emission device when the rotary platform is positioned at a plurality of preset rotating positions.
2. The image capturing device suitable for three-dimensional size detection as set forth in claim 1, wherein:
the laser emitting device includes:
a laser generator for generating laser light;
the optical element at least comprises an arc-shaped light-emitting surface.
3. The image capturing device suitable for three-dimensional size detection according to claim 2, wherein:
and the imaging plane of the plane image acquisition device is obliquely intersected with the laser plane of the laser emission device.
4. The image capturing device suitable for three-dimensional size detection according to claim 3, wherein:
the rotation axis is parallel to an imaging plane of the planar image capture device.
5. The image capturing device suitable for three-dimensional size detection according to claim 4, wherein:
the plane image acquisition device comprises a lens, and the optical axis of the lens is obliquely intersected with the laser surface of the laser emission device in front of the lens.
6. The image capturing device suitable for three-dimensional size detection according to claim 5, wherein:
the laser emitting device is arranged outside the visual angle range of the plane image acquisition device.
7. The image capturing device suitable for three-dimensional size detection according to claim 6, wherein:
the projection of the plane image acquisition device on a plane perpendicular to the rotation axis is different from the projection of the laser emission device on the plane.
8. The image capturing device suitable for three-dimensional size detection according to claim 7, wherein:
the projection of the rotation axis of the rotation platform in a plane perpendicular to the rotation axis is located outside the projection of the planar image acquisition device in the plane.
9. The image capturing device suitable for three-dimensional size detection according to claim 8, wherein:
the plane image acquisition device and the laser emission device are respectively arranged on two sides of the rotation axis of the rotating platform.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020102725449 | 2020-04-09 | ||
| CN202010272544 | 2020-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215338208U true CN215338208U (en) | 2021-12-28 |
Family
ID=76924989
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120781075.3U Active CN215338208U (en) | 2020-04-09 | 2021-04-09 | Image acquisition equipment suitable for three-dimensional size detects |
| CN202110384453.9A Pending CN113218325A (en) | 2020-04-09 | 2021-04-09 | Laser camera system suitable for three-dimensional size detection |
| CN202110387431.8A Pending CN113175892A (en) | 2020-04-09 | 2021-04-09 | Image acquisition equipment suitable for three-dimensional size detects |
| CN202110387441.1A Pending CN113175869A (en) | 2020-04-09 | 2021-04-09 | Size detection equipment suitable for large-scale flat plate type industrial parts |
| CN202120754555.0U Active CN215338167U (en) | 2020-04-09 | 2021-04-09 | Size detection equipment suitable for large-scale flat plate type industrial parts |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110384453.9A Pending CN113218325A (en) | 2020-04-09 | 2021-04-09 | Laser camera system suitable for three-dimensional size detection |
| CN202110387431.8A Pending CN113175892A (en) | 2020-04-09 | 2021-04-09 | Image acquisition equipment suitable for three-dimensional size detects |
| CN202110387441.1A Pending CN113175869A (en) | 2020-04-09 | 2021-04-09 | Size detection equipment suitable for large-scale flat plate type industrial parts |
| CN202120754555.0U Active CN215338167U (en) | 2020-04-09 | 2021-04-09 | Size detection equipment suitable for large-scale flat plate type industrial parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN215338208U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334199B (en) * | 2022-01-11 | 2024-07-23 | 西安热工研究院有限公司 | High-temperature gas cooled reactor fuel sphere surface integrity detection device based on laser ranging |
| CN117218244B (en) * | 2023-11-07 | 2024-02-13 | 武汉博润通文化科技股份有限公司 | Intelligent 3D animation model generation method based on image recognition |
-
2021
- 2021-04-09 CN CN202120781075.3U patent/CN215338208U/en active Active
- 2021-04-09 CN CN202110384453.9A patent/CN113218325A/en active Pending
- 2021-04-09 CN CN202110387431.8A patent/CN113175892A/en active Pending
- 2021-04-09 CN CN202110387441.1A patent/CN113175869A/en active Pending
- 2021-04-09 CN CN202120754555.0U patent/CN215338167U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113218325A (en) | 2021-08-06 |
| CN113175892A (en) | 2021-07-27 |
| CN215338167U (en) | 2021-12-28 |
| CN113175869A (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215338208U (en) | Image acquisition equipment suitable for three-dimensional size detects | |
| KR101708344B1 (en) | System for 3 dimensional scanning | |
| US20020113867A1 (en) | Stereoscopic image display apparatus for detecting viewpoint position and forming stereoscopic image while following up viewpoint position | |
| US10148937B2 (en) | Stereo image scanning device | |
| EP2596752A1 (en) | Medical imaging apparatus | |
| CN104079810A (en) | Three-dimensional panoramic scanning device and three-dimensional model generating method | |
| CN110608872A (en) | Optical detection equipment and detection method | |
| CN212752487U (en) | Optical anti-shake testing device | |
| CN104374374B (en) | 3D environment dubbing system and 3D panoramas display method for drafting based on active panoramic vision | |
| KR20170139402A (en) | System for 3 dimensional scanning and target device for calibration of line type laser | |
| CN208156197U (en) | Multi-thread rotary laser radar installations | |
| CN110830696A (en) | Calibration method of binocular vision measurement technology | |
| CN212032159U (en) | Remote two-dimensional code scanner of sweeping sign indicating number | |
| CN114697549A (en) | Image acquisition device and panoramic image acquisition method | |
| CN1766520A (en) | Position-detecting system | |
| CN1802561A (en) | Transmission imager | |
| CN107289875A (en) | Three-dimensional scanner | |
| CN218271962U (en) | Hyperspectral intelligent detection device | |
| CN106447666B (en) | A kind of detection device of panorama camera splicing effect | |
| WO2008108749A1 (en) | Desktop three-dimensional scanner | |
| CN115545054A (en) | Two-dimensional code scanning equipment performance testing method and device based on different field depths | |
| CN211375310U (en) | Simple three-dimensional imaging device based on line structured light | |
| CN217403381U (en) | Adjustable visual image system | |
| KR101904198B1 (en) | Camera stand indicating photo shoot area | |
| CN220545089U (en) | Panorama supervisory equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 1502, No.1, ningchuang technology center, Panhuo street, Yinzhou District, Ningbo City, Zhejiang Province, 315100 Patentee after: Yishi Technology (Ningbo) Co.,Ltd. Address before: Room 1502, No.1, ningchuang technology center, Panhuo street, Yinzhou District, Ningbo City, Zhejiang Province, 315100 Patentee before: Ningbo Yishi Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |