CN113834441A - Three-dimensional scanner capable of automatically capturing or enhancing light source - Google Patents
Three-dimensional scanner capable of automatically capturing or enhancing light source Download PDFInfo
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- CN113834441A CN113834441A CN202111113919.8A CN202111113919A CN113834441A CN 113834441 A CN113834441 A CN 113834441A CN 202111113919 A CN202111113919 A CN 202111113919A CN 113834441 A CN113834441 A CN 113834441A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- Image Input (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the technical field of scanning, in particular to a three-dimensional scanner capable of automatically capturing or enhancing a light source. The method comprises the following steps: an instruction acquisition module: the system comprises a data acquisition preprocessing module, an information feedback module, a logic judgment module and an execution module; the data acquisition preprocessing module comprises a light source adjusting subsystem; and the light source adjusting subsystem adjusts the light and shade and the exposure condition of the scanned object according to the scanning judgment of the scanner. This scheme utilization data's collection realizes gathering the judgement of scanning thing light and shade, then transmits colored information through the information feedback, carries out the judgement of light and shade and the spot of reflection of light through judging the module, then output signal. And meanwhile, the execution module performs adjustment on the light source subsystem according to the acquisition pretreatment of the data, so that the change of the light source is realized.
Description
Technical Field
The invention relates to the technical field of scanning, in particular to a three-dimensional scanner capable of automatically capturing or enhancing a light source.
Background
A three-dimensional scanner is a scientific instrument for detecting and analyzing the shape (geometric structure) and appearance data (such as color) of an object or an environment in the real world. The collected data is often used to perform three-dimensional reconstruction calculations to create a digital model of the actual object in the virtual world. These models have a wide range of applications, for example industrial design, flaw detection, reverse engineering, robot guidance, topographical measurements, medical information, biological information, criminal identification, digital cultural relic collections, film production, game creation materials, and the like.
The manufacture of the three-dimensional scanner does not depend on a single technology, and various reconstruction technologies have advantages and disadvantages, and the cost and the selling price are also divided into high and low. Without a general reconstruction technique, the apparatus and method are often limited by the surface characteristics of the object. For example, optical techniques do not readily handle shiny, specular or translucent surfaces, whereas laser techniques are not suitable for fragile or perishable surfaces.
And creating point clouds of the geometric surface of the object by the three-dimensional scanner, wherein the points can be used for interpolating the surface shape of the object, and the denser point clouds are subjected to inverse modeling. The internal light source is adjusted according to the judgment and the distinction of the scanned object and the light and shade and the judgment of the scanned scene. The prior patent number is CN104165600A entitled as a wireless handheld 3D laser scanning system, which utilizes a positioning and collecting method combining three-eye photography and three beams of laser to realize rapid positioning and accurate measurement of a target object; meanwhile, the self-adaptive background light source compensation is adopted, and the stable measurement light source environment is ensured. However, according to the scheme, the judgment and the processing are not carried out according to the brightness of the scanned object and whether the scanned object reflects light or exposes light, and light compensation is directly carried out, so that the point cloud which is easy to expose and is over exposed is not easy to show, and the subsequent printing is not facilitated.
Disclosure of Invention
The scheme aims to provide the three-dimensional scanner capable of automatically capturing or enhancing the light source so as to solve the problem of exposure and other light spots caused by direct light compensation according to the light and shade and reflection conditions of a scanned object.
In order to achieve the above object, the present invention provides a three-dimensional scanner for automatically capturing or enhancing a light source, comprising:
the acquisition instruction module is used for controlling the scanner to acquire a scanning acquisition instruction by the controller; simultaneously capturing a scanned object by the lens of the scanner;
the data acquisition preprocessing module is used for acquiring data and collecting physical information of a scanned object by the scanner according to the acquired scanning acquisition instruction; scanning the scanned object, and simultaneously carrying out information acquisition preprocessing according to the brightness and the light reflection condition of the scanned object;
the information feedback module is used for carrying out acquisition real-time feedback according to the acquired information of the scanned object;
the logic judgment module is used for judging through the fed back information and outputting an instruction by the processor;
the execution module collects the specific instruction output by the controller and carries out three-dimensional modeling by software;
the data acquisition preprocessing module comprises a light source adjusting subsystem; and the light source adjusting subsystem adjusts the light and shade and the exposure condition of the scanned object according to the scanning judgment of the scanner.
The scheme has the beneficial effects that: this scheme utilization data's collection realizes gathering the judgement of scanning thing light and shade, then transmits colored information through the information feedback, carries out the judgement of light and shade and the spot of reflection of light through judging the module, then output signal. And meanwhile, the execution module performs adjustment on the light source subsystem according to the acquisition pretreatment of the data, so that the change of the light source is realized.
Further, the scanner lens capture comprises: focusing and angle adjustment. Accurate real-time focusing is realized, and the subsequent fuzzy phenomenon is prevented from affecting the scanning effect.
Further, the physical information includes: the size, shape and configuration of the scanned object. And obtaining the specific information of the scanned object.
Further, the pretreatment method comprises the following steps: and scanning the collection and the splicing of all point clouds. The point cloud graph formed by the countless points is obtained according to specific characteristics instead of specific model software obtained after scanning. And then, performing reverse modeling in three-dimensional modeling, collecting and splicing the scanned point clouds, and performing reverse modeling in modeling software to form a specific three-dimensional model.
Further, the data acquisition preprocessing module comprises a CCD camera for acquiring information of the brightness and the reflection of the scanned object; the light source conditioning subsystem includes: a light source; the light source is an LED lamp and is hinged inside the scanner; the execution module controls the light source to rotate.
Further, the light source adjustment subsystem includes:
the lens acquisition module acquires and collects the conditions of light and shade, shadow and light spots of a scanned object through the CCD camera;
the subsystem feedback module is used for acquiring and positioning the lens and transmitting the acquired information to the processor in real time;
the subsystem judging module is used for judging the conditions of light and shade, shadow and light spots by the processor, judging the light and shade positions of exposure in the positioned two-dimensional graph, transmitting specific exposure or shadow point positions in real time, positioning the specific positions in real time and transmitting the point positions to the subsystem execution module;
and the subsystem execution module judges through the processor. And specifically, positioning a specific position according to the two-dimensional picture, and executing adjustment of the LED lamp according to the scanned object.
Further, the subsystem execution module comprises a feedback signal and transmits the feedback signal to the lens acquisition module. And judging the adjusted two-dimensional graph again, and performing corresponding point location scanning again according to the previous condition.
Further, an identification subsystem is included in the data acquisition preprocessing module, and the identification subsystem includes:
the image processing submodule is used for carrying out gray scale or binarization processing on the two-dimensional graph of the scanned object;
the query submodule is used for querying all points with different colors in the processed picture and transmitting signals to the processor;
the logic judgment submodule judges whether a closed polygon is formed or not by the processor;
the screening submodule screens the specific positioning of the closed polygon and screens out the closed polygon inside the outline of the scanned object in the two-dimensional picture;
and determining a facula submodule, wherein the antecedent condition is to compare two-dimensional graphs of scanned objects at different angles in sequence under the condition that a light source for scanning irradiation and the full-color scanning lens are not moved.
Under the condition that a light source for scanning irradiation and a full-color scanning lens are not moved, the irradiation conditions are ensured to be the same. And judging whether the closed polygons in the sequential graphs are at the same position or not by adjusting the scanned objects, and judging as the light spots if the closed polygons are at the same position. The identification subsystem is used for judging the light spots, so that the scanning object can be better contrasted, and a better scanning process can be carried out.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a light source adjustment subsystem according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an identification subsystem according to an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
as shown in figure 1:
a three-dimensional scanner that automatically captures or enhances a light source, comprising:
the acquisition instruction module is used for controlling the scanner to acquire a scanning acquisition instruction by the controller; simultaneously capturing a scanned object by the lens of the scanner;
the scanning object is subjected to a scanning process, the scanning object is captured by the lens of the scanner through focusing and angle adjustment, accurate real-time focusing is achieved, and the subsequent fuzzy phenomenon is prevented from occurring, and the scanning effect is prevented from being influenced.
The data acquisition preprocessing module is used for acquiring data and collecting physical information of a scanned object according to the acquired moral scanning acquisition instruction by the scanner; scanning the scanned object, and simultaneously carrying out information acquisition preprocessing according to the brightness and the light reflection condition of the scanned object;
then, the physical information of the scanned object is judged through the lens and then scanned, and the method comprises the following steps: the size, shape and configuration of the scanned object. The characteristic information of the object is fully scanned.
The information feedback module is used for carrying out acquisition real-time feedback according to the acquired information of the scanned object;
all information of the scanned object is fed back to the processor.
The logic judgment module is used for judging through the fed back information and outputting an instruction by the processor;
the execution module collects the specific instruction output by the controller and carries out three-dimensional modeling by software;
the point cloud graph formed by the countless points is obtained according to specific characteristics instead of specific model software obtained after scanning.
And then, performing reverse modeling in three-dimensional modeling, collecting and splicing scanned point clouds, and performing reverse modeling in modeling software (such as SolidWorks or NX) to form a specific three-dimensional model.
As shown in fig. 2:
the data acquisition preprocessing module comprises a light source adjusting subsystem; and the light source adjusting subsystem adjusts the light and shade and the exposure condition of the scanned object according to the scanning judgment of the scanner.
As shown in fig. 2:
the data acquisition preprocessing module comprises a CCD camera for acquiring information of the light and shade and the reflection condition of a scanned object; the light source conditioning subsystem includes: a light source; the light source is an LED lamp and is hinged inside the scanner; the execution module controls the light source to rotate.
A light source conditioning subsystem comprising:
the lens acquisition module acquires and collects the conditions of light and shade, shadow and light spots of a scanned object through the CCD camera;
the method specifically relates to forming a two-dimensional graph and judging information of a scanned object in the graph.
The subsystem feedback module is used for acquiring and positioning the lens and transmitting the acquired information to the processor in real time;
the subsystem judging module is used for judging the conditions of light and shade, shadow and light spots by the processor, judging the exposure or light and shade positions in the positioned two-dimensional graph, transmitting specific exposure or shadow point positions in real time, positioning the specific positions in real time and transmitting the point positions to the subsystem execution module;
and the subsystem execution module judges through the processor. And specifically, positioning a specific position according to the two-dimensional picture, and executing adjustment of the LED lamp according to the scanned object.
The subsystem execution module comprises a feedback signal and transmits the feedback signal to the lens acquisition module. And judging the adjusted two-dimensional graph again, and performing corresponding point location scanning again according to the previous condition.
For example, in a two-dimensional scanning picture, when scanning exposure is excessive, the condition of a light spot jaw occurs, when a processor judges a specific position, the subsystem execution module adjusts and rotates the LED lamp, so that the difference in angle is realized, meanwhile, the brightness of the LED lamp is reduced, and then the module acquired through the lens acquires a scanned object again, so that the condition of the light spot caused by direct contrast is reduced. The details of the scanning here can be enhanced.
For another example, if a shadow occurs in the two-dimensional scanning image, the point cloud of the subsequent scanning is influenced, the processor judges that the darkness of the corresponding positioning point is too low, a signal is transmitted to the subsystem execution module, the subsystem execution module adjusts the rotation of the LED lamp and enhances the brightness of the LED lamp, and the module acquired by the lens acquires the scanned object again to enhance the details of the scanning.
As shown in fig. 3:
for the condition that light spots appear in the scanning process, the data acquisition preprocessing module comprises an identification subsystem, and the identification subsystem comprises:
the image processing submodule is used for carrying out gray scale or binarization processing on the two-dimensional graph of the scanned object;
the query submodule is used for querying all points with different colors in the processed picture and transmitting signals to the processor;
the logic judgment submodule judges whether a closed polygon is formed or not by the processor;
the screening submodule screens the specific positioning of the closed polygon and screens out the closed polygon inside the outline of the scanned object in the two-dimensional picture;
and determining a facula submodule, wherein the antecedent condition is to compare two-dimensional graphs of scanned objects at different angles in sequence under the condition that a light source for scanning irradiation and the full-color scanning lens are not moved.
Under the condition that a light source for scanning irradiation and a full-color scanning lens are not moved, the irradiation conditions are ensured to be the same. And judging whether the closed polygons in the sequential graphs are at the same position or not by adjusting the scanned objects, and judging as the light spots if the closed polygons are at the same position.
The identification subsystem is used for judging the light spots, so that the scanning object can be better contrasted, and a better scanning process can be carried out.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A three-dimensional scanner for automatically capturing or enhancing a light source, comprising:
the acquisition instruction module is used for controlling the scanner to acquire a scanning acquisition instruction by the controller; simultaneously capturing a scanned object by the lens of the scanner;
the data acquisition preprocessing module is used for acquiring data and collecting physical information of a scanned object by the scanner according to the acquired scanning acquisition instruction; scanning the scanned object, and simultaneously carrying out information acquisition preprocessing according to the brightness and the light reflection condition of the scanned object;
the information feedback module is used for carrying out acquisition real-time feedback according to the acquired information of the scanned object;
the logic judgment module is used for judging through the fed back information and outputting an instruction by the processor;
the execution module collects the specific instruction output by the controller and carries out three-dimensional modeling by software;
the data acquisition preprocessing module comprises a light source adjusting subsystem; and the light source adjusting subsystem adjusts the light and shade and the exposure condition of the scanned object according to the scanning judgment of the scanner.
2. The three-dimensional scanner for automatically capturing or enhancing a light source according to claim 1, wherein the scanner lens capturing comprises: focusing and angle adjustment.
3. The three-dimensional scanner for automatically capturing or enhancing a light source of claim 1, wherein the physical information comprises: the size, shape and configuration of the scanned object.
4. The three-dimensional scanner for automatically capturing or enhancing a light source according to claim 1, wherein the preprocessing method comprises: and scanning the collection and the splicing of all point clouds.
5. The three-dimensional scanner capable of automatically capturing or enhancing the light source as claimed in claim 1, wherein the data acquisition preprocessing module comprises a CCD camera for acquiring information of the brightness and the reflection of the scanned object; the light source conditioning subsystem includes: a light source; the light source is an LED lamp and is hinged inside the scanner; the execution module controls the light source to rotate.
6. The three-dimensional scanner for automatically capturing or enhancing a light source of claim 5, wherein the light source adjustment subsystem comprises:
the lens acquisition module acquires and collects the conditions of light and shade, shadow and light spots of a scanned object through the CCD camera;
the subsystem feedback module is used for acquiring and positioning the lens and transmitting the acquired information to the processor in real time;
the subsystem judging module is used for judging the conditions of light and shade, shadow and light spots by the processor, judging the light and shade positions of exposure in the positioned two-dimensional graph, transmitting specific exposure or shadow point positions in real time, positioning the specific positions in real time and transmitting the point positions to the subsystem execution module;
the subsystem execution module is judged by the processor; and specifically, positioning a specific position according to the two-dimensional picture, and executing adjustment of the LED lamp according to the scanned object.
7. The three-dimensional scanner capable of automatically capturing or enhancing a light source according to claim 6, wherein the subsystem execution module comprises a feedback signal and transmits the feedback signal to the lens capture module.
8. The three-dimensional scanner with automatic capturing or enhancing light source of claim 1, wherein the data acquisition preprocessing module comprises an identification subsystem, and the identification subsystem comprises:
the image processing submodule is used for carrying out gray scale or binarization processing on the two-dimensional graph of the scanned object;
the query submodule is used for querying all points with different colors in the processed picture and transmitting signals to the processor;
the logic judgment submodule judges whether a closed polygon is formed or not by the processor;
the screening submodule screens the specific positioning of the closed polygon and screens out the closed polygon inside the outline of the scanned object in the two-dimensional picture;
and determining a facula submodule, wherein the antecedent condition is to compare two-dimensional graphs of scanned objects at different angles in sequence under the condition that a light source for scanning irradiation and the full-color scanning lens are not moved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111113919.8A CN113834441A (en) | 2021-09-23 | 2021-09-23 | Three-dimensional scanner capable of automatically capturing or enhancing light source |
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| CN202111113919.8A CN113834441A (en) | 2021-09-23 | 2021-09-23 | Three-dimensional scanner capable of automatically capturing or enhancing light source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114463407A (en) * | 2022-01-19 | 2022-05-10 | 西安交通大学口腔医院 | System for realizing oral cavity shaping simulation display by combining 3D image with feature fusion technology |
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2021
- 2021-09-23 CN CN202111113919.8A patent/CN113834441A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114463407A (en) * | 2022-01-19 | 2022-05-10 | 西安交通大学口腔医院 | System for realizing oral cavity shaping simulation display by combining 3D image with feature fusion technology |
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Application publication date: 20211224 |
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