CN216118851U - Panoramic image splicing and calibrating device - Google Patents
Panoramic image splicing and calibrating device Download PDFInfo
- Publication number
- CN216118851U CN216118851U CN202122609038.7U CN202122609038U CN216118851U CN 216118851 U CN216118851 U CN 216118851U CN 202122609038 U CN202122609038 U CN 202122609038U CN 216118851 U CN216118851 U CN 216118851U
- Authority
- CN
- China
- Prior art keywords
- calibration
- coding sequence
- feature coding
- support frame
- panoramic
- 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
Landscapes
- Studio Devices (AREA)
- Image Processing (AREA)
Abstract
The utility model discloses a panoramic image splicing calibration device which comprises a support frame, wherein two flat plate calibrators which are arranged in a bilateral symmetry mode are arranged on the support frame, each flat plate calibrator comprises a calibration plate which is rotatably connected to the support frame, a plurality of calibration areas which are distributed in a rectangular array mode are arranged on the calibration plate, and feature coding sequence dots protruding out of the front end face of the calibration plate are arranged in the calibration areas; the feature coding sequence circular points are arranged in an L shape and used for calibrating the angular point features in the image; the feature coding sequence circular points are arranged in a strip shape and used for calibrating linear features in the image; the feature coding sequence dots are irregular diagonal neighborhood feature coding sequence dots. The panoramic image splicing and calibrating device assists the panoramic camera to carry out scene panoramic shooting operation, and can realize accurate calibration of the position and the posture of a panoramic photo; by placing the calibrator device, the panoramic photo can be accurately spliced, and high-precision comparison reference is provided for an automatic splicing algorithm; and whole position can be dismantled, convenient to carry.
Description
Technical Field
The utility model relates to the technical field of panoramic image synthesis and splicing, in particular to a panoramic image splicing and calibrating device.
Background
The panoramic image has the advantages of rich details, wide information coverage and the like, and is suitable for being applied to the display and roaming of planning and construction of beautiful villages. Image splicing is a core link for panoramic image generation, registration and splicing of adjacent images are key points of a panoramic image generation technology, and the main methods comprise the following steps: a stitching method based on attitude data, an interactive stitching method and a feature-based stitching method. On the basis, a series of splicing technologies and algorithms for different types of images are formed. The image registration is the core part of the whole image splicing technology, and is directly related to the success rate and the running speed of an image splicing algorithm, and how to evaluate the accuracy of the registration algorithm is a standard for measuring the image splicing quality. However, due to the lack of uniform reference image contrast and the influence of the image stitching principle and the image acquisition mode, the advantages and disadvantages of different stitching algorithms cannot be directly judged, and the difference of image stitching cannot be accurately and quantitatively analyzed from the different stitching algorithms, so that the method is a difficult problem for evaluating the current image stitching algorithm. Accordingly, the utility model provides a panoramic image splicing and calibrating device.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects and technical problems in the prior art, the utility model provides the panoramic image splicing calibration device, the high-precision splicing of adjacent images can be carried out by using the calibration device, the problem that the panoramic image splicing technology has no limitation of reference image contrast analysis is solved, the accurate calibration of splicing reference images of different stations can be realized, meanwhile, by arranging the panoramic image splicing calibration device, the rapid calibration splicing of panoramic images at any position can be realized, an image reference is provided for the precision evaluation of different splicing algorithms, a quality analysis basis is provided for the splicing algorithms of the panoramic images, and meanwhile, all accessory device parts can be folded and detached, so that the panoramic image splicing calibration device is convenient to carry and is convenient for development and application in an experimental stage.
In order to solve the technical problem, the utility model aims to realize that: the utility model relates to a panoramic image splicing calibration device which comprises a support frame, wherein two flat plate calibrators which are bilaterally symmetrically arranged are arranged on the support frame, each flat plate calibrator comprises a calibration plate which is rotatably connected to the support frame, a plurality of calibration areas which are distributed in a rectangular array are arranged on the calibration plate, and a characteristic dot coding sequence which protrudes out of the front end surface of the calibration plate is arranged in each calibration area.
The utility model is further configured to: the feature coding sequence circular dots are arranged in an L shape and used for calibrating the feature of the angular points in the image.
The utility model is further configured to: the feature coding sequence circular dots are arranged in a strip shape and used for calibrating linear features in the image.
The utility model is further configured to: the feature coding sequence dots are irregular diagonal neighborhood feature coding sequence dots and are used for calibrating nonlinear features in the image.
The utility model is further configured to: the support frame is a telescopic support frame with the height adjustable from top to bottom.
In conclusion, the utility model has the following beneficial effects:
1. the panoramic camera is assisted to carry out scene panoramic shooting operation, so that the accurate calibration of the position and the posture of the panoramic photo can be realized;
2. by placing the calibrator device, the panoramic photo can be accurately spliced, and high-precision comparison reference is provided for an automatic splicing algorithm;
3. all the parts can be detached, and the carrying is convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
For a better understanding of the technical solutions of the present invention, the following preferred embodiments of the present invention are described in conjunction with the specific examples, but it should be understood that the descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent claims of the present invention. 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 invention.
The utility model will be further described with reference to the accompanying drawings and preferred embodiments.
Example 1
Referring to fig. 1, the panoramic image stitching calibration device according to the embodiment includes a support frame 1, two flat plate calibrators are arranged on the support frame 1 in a bilateral symmetry manner, each flat plate calibrator includes a calibration plate 2 rotatably connected to the support frame 1, a plurality of calibration areas arranged in a rectangular array are arranged on the calibration plate 2, and feature coding sequence dots 3 protruding out of the front end surface of the calibration plate 2 are arranged in the calibration areas.
Furthermore, the feature coding sequence dots 3 are arranged in an L shape and used for calibrating the corner feature in the image.
Further, the feature code sequence dots 3 are arranged in a strip shape and used for calibrating linear features in the image.
Further, the feature coding sequence dots 3 are irregular diagonal neighborhood feature coding sequence dots and are used for calibrating nonlinear features in the image.
Furthermore, the support frame 1 is a telescopic support frame with adjustable vertical height.
In this embodiment, the panoramic image stitching calibration device is composed of a support frame 1 and flat plate calibrators arranged on the support frame 1 in bilateral symmetry, wherein each flat plate calibrator comprises a calibration plate 2 connected on the support frame 1 in a rotating manner and feature coding sequence dots 3 protruding out of the front end surface of the calibration plate 2.
All feature coding sequence dots 3 are arranged in different shapes in the corresponding calibration regions, wherein nine feature shapes are included.
The L-shaped characteristic sequence is one of nine characteristic forms, and is mainly used for calibrating corner point characteristics in an image;
the shape feature sequence is one of nine feature forms, and is mainly used for calibrating linear features in an image;
the irregular diagonal neighborhood feature coding sequence dots are also one of nine feature forms, and are mainly used for calibrating nonlinear features in an image.
And the flat plate calibrator can freely rotate along the horizontal direction, is convenient to fold and unfold, can stretch out and draw back in the height direction, is convenient to recycle and is convenient to ship.
The panoramic image splicing and calibrating device assists the panoramic camera to perform scene panoramic shooting operation, and can realize accurate calibration of the position and the posture of a panoramic photo; by placing the calibrator device, the panoramic photo can be accurately spliced, and high-precision comparison reference is provided for an automatic splicing algorithm; and whole position can be dismantled, convenient to carry, and overall function is perfect, and the practicality is strong.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship actually shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. Panoramic image concatenation calibration device, including the support frame, its characterized in that: the support frame is provided with two flat plate calibrators which are arranged in bilateral symmetry, each flat plate calibrator comprises a calibration plate which is rotatably connected to the support frame, a plurality of calibration areas which are distributed in a rectangular array are arranged on the calibration plate, and feature coding sequence dots which protrude out of the front end face of the calibration plate are arranged in the calibration areas.
2. The panoramic image stitching calibration device according to claim 1, characterized in that: the feature coding sequence circular dots are arranged in an L shape and used for calibrating the feature of the angular points in the image.
3. The panoramic image stitching calibration device according to claim 1, characterized in that: the feature coding sequence circular dots are arranged in a strip shape and used for calibrating linear features in the image.
4. The panoramic image stitching calibration device according to claim 1, characterized in that: the feature coding sequence dots are irregular diagonal neighborhood feature coding sequence dots and are used for calibrating nonlinear features in the image.
5. The panoramic image stitching calibration device according to any one of claims 1 to 4, characterized in that: the support frame is a telescopic support frame with the height adjustable from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122609038.7U CN216118851U (en) | 2021-10-28 | 2021-10-28 | Panoramic image splicing and calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122609038.7U CN216118851U (en) | 2021-10-28 | 2021-10-28 | Panoramic image splicing and calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216118851U true CN216118851U (en) | 2022-03-22 |
Family
ID=80710489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122609038.7U Active CN216118851U (en) | 2021-10-28 | 2021-10-28 | Panoramic image splicing and calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216118851U (en) |
-
2021
- 2021-10-28 CN CN202122609038.7U patent/CN216118851U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100583151C (en) | Double-camera calibrating method in three-dimensional scanning system | |
| CN102322816B (en) | Calibration target device and calibration method for three-dimensional ice-shaped digital image system | |
| CN102175221B (en) | Vehicle-mounted mobile photographic surveying system based on fisheye lens | |
| US8436904B2 (en) | Method and apparatus for calibrating video camera | |
| CN106123798B (en) | A kind of digital photography laser scanning device | |
| CN104299261B (en) | Three-dimensional imaging method and system for human body | |
| CN106091983B (en) | The complete scaling method of Vision Measuring System With Structured Light Stripe comprising scanning direction information | |
| CN102169573B (en) | Real-time distortion correction method and system of lens with high precision and wide field of view | |
| CN102156969B (en) | Processing method for correcting deviation of image | |
| CN104732482A (en) | Multi-resolution image stitching method based on control points | |
| CN106780630A (en) | Demarcate panel assembly, vehicle-mounted camera scaling method and device, system | |
| CN104729532B (en) | A kind of tight scaling method of panorama camera | |
| CN114445593B (en) | Bird's eye view semantic segmentation label generation method based on multi-frame semantic point cloud splicing | |
| CN103106662B (en) | Space straight line linear solution parabolic catadioptric camera intrinsic parameter | |
| CN105844587A (en) | Low-altitude unmanned aerial vehicle-borne hyperspectral remote-sensing-image automatic splicing method | |
| CN105096252A (en) | Manufacturing method of band-shaped omni-directional street scenery image map | |
| JP2004133905A (en) | Preview apparatus, electronic equipment, and image forming apparatus | |
| CN105118086A (en) | 3D point cloud data registering method and system in 3D-AOI device | |
| CN113222820B (en) | Pose information-assisted aerial remote sensing image stitching method | |
| US11082566B2 (en) | Multiple camera calibration chart | |
| CN114331924B (en) | Large workpiece multi-camera vision measurement method | |
| CN113793270A (en) | Aerial image geometric correction method based on unmanned aerial vehicle attitude information | |
| CN102402785A (en) | Camera self-calibration method based on quadratic curves | |
| CN216118851U (en) | Panoramic image splicing and calibrating device | |
| CN101783018A (en) | Method for calibrating camera by utilizing concentric circles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |