CN116580076B - Device, method, apparatus and medium for acquiring particle graph containing model boundary - Google Patents
Device, method, apparatus and medium for acquiring particle graph containing model boundary Download PDFInfo
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06V10/77—Processing image or video features in feature spaces; using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]; Blind source separation
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Abstract
The application discloses equipment, a method, a device and a medium for acquiring a particle graph containing model boundaries, and relates to the technical field of background schlieren. In the device, through the double light sources and the double cameras, the particle plane is positioned on the focal plane of the first camera, the model is positioned on the focal plane of the second camera, and when the first light source, the second light source, the first camera and the second camera are controlled to be simultaneously opened, the boundary and the particle plane of the model are shot at the same time, so that the problem that the model boundary cannot be obtained at all times in the traditional background schlieren technology is solved, and the situation that errors occur in the background schlieren technology measurement due to shaking of the model boundary when the particle plane is shot firstly or a model boundary diagram is shot firstly is avoided as far as possible; the measurement of density variation of the flow field with the solid wall surface is realized. In addition, the application also provides a method, a device and a medium for acquiring the particle diagram containing the model boundary, and the effects are the same as above.
Description
Technical Field
The present application relates to the field of background schlieren technology, and in particular, to a device, a method, an apparatus, and a medium for acquiring a particle graph including a model boundary.
Background
In order to quantitatively measure the boundary layer space field, the advantages of the high-speed schlieren and particle image velocimetry technology are required to be combined, so that the background schlieren quantitative measurement technology is developed, and the density change in the flow field is quantitatively measured.
However, when the traditional background schlieren technology is used for measuring the boundary layer flow field with the solid wall, the particle plane is placed on the focal plane of the camera, and the model is arranged in the experimental bin, so that the particle plane and the boundary of the model are not in the same plane, and the boundary of the particle graph and the boundary of the model cannot be obtained at the same time. If the model may have jitter phenomenon during the experimental process, the inability to obtain the particle map and the boundary of the model at the same time may cause a large error in the background schlieren technique measurement.
Therefore, how to shoot the particle graph and the model boundary simultaneously by the background schlieren technology is a technical problem that needs to be solved by the person skilled in the art.
Disclosure of Invention
The application aims to provide equipment, a method, a device and a medium for acquiring a particle graph containing a model boundary, which are used for simultaneously shooting the particle graph and the model boundary through a background schlieren technology.
In order to solve the above technical problem, the present application provides an apparatus for acquiring a particle graph including a model boundary, including: the device comprises a first light source, a second light source, a first camera, a second camera, a reflecting mirror and a spectroscope;
The particle plane, the first light source, the reflector and the second light source are positioned on a first side of the model;
the spectroscope, the first camera and the second camera are positioned on a second side of the model;
the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on a focal plane of the first camera;
the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on a focal plane of the second camera;
the controller is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on; acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera; the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model.
Preferably, the method further comprises: a first lens and a second lens;
the first lens is positioned between the first light source and the particle plane and positioned in the transmission direction of the light beam emitted by the first light source;
The second lens is positioned between the second light source and the reflecting mirror and positioned in the transmission direction of the light beam emitted by the second light source.
Preferably, the method further comprises: a first optical filter and a second optical filter;
the first optical filter is positioned between the first camera and the spectroscope and positioned in the transmission direction of the light beam emitted by the first light source;
the second optical filter is located between the second camera and the spectroscope and located in the transmission direction of the light beam emitted by the second light source.
Preferably, the first camera and the second camera are disposed perpendicular to each other, and the angle of view of the first camera is the same as the angle of view of the second camera.
In order to solve the technical problem, the present application further provides a method for acquiring a particle map including a model boundary, which is applied to a device including a first light source, a second light source, a first camera, a second camera, a reflector, and a spectroscope, wherein a particle plane, the first light source, the reflector, and the second light source are located on a first side of the model; the spectroscope, the first camera and the second camera are positioned on a second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on a focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on a focal plane of the second camera; the method comprises the following steps:
Controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on;
acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera;
the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model.
Preferably, after the first light source, the second light source, the first camera, and the second camera are controlled to be turned on synchronously, before the obtaining of the particle map obtained by the particle plane captured by the first camera and the boundary map of the model captured by the second camera, the method further includes:
acquiring a first current light intensity of the first light source and a second current light intensity of the second light source;
judging whether the first current light intensity and the second current light intensity both meet corresponding target light intensity or not;
if yes, entering a step of acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera;
if not, adjusting the first current light intensity or the second current light intensity to the target light intensity, and entering the step of judging whether the first current light intensity and the second current light intensity both meet the corresponding target light intensity.
Preferably, before said controlling said first light source, said second light source, said first camera, said second camera is turned on synchronously, said method further comprises:
controlling the second light source to be turned on;
adjusting the size of the aperture of the second camera so that the second camera is located at a position where the model is located at the focal plane of the second camera;
controlling the second camera to shoot the boundary of the model to obtain an initial model boundary diagram;
controlling the second light source and the second camera to be turned off;
correspondingly, before the fusing the particle map with the boundary map to obtain a particle map containing boundaries of the model, the method further comprises:
judging whether the boundary map is the boundary map of the model according to the initial model boundary map;
if yes, the step of fusing the particle graph with the boundary graph so as to acquire the particle graph containing the boundary of the model is entered;
if not, the first light source, the second light source, the first camera and the second camera are controlled to be turned off, and the step of controlling the first light source, the second light source, the first camera and the second camera to be turned on synchronously is returned.
In order to solve the technical problem, the application also provides a device for acquiring the particle map comprising the model boundary, which is applied to equipment comprising a first light source, a second light source, a first camera, a second camera, a reflecting mirror and a spectroscope, wherein a particle plane, the first light source, the reflecting mirror and the second light source are positioned on a first side of the model; the spectroscope, the first camera and the second camera are positioned on a second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on a focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on a focal plane of the second camera; the device comprises:
the control module is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on;
the acquisition module is used for acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera;
And the fusion module is used for fusing the particle plane and the boundary map so as to acquire the particle map containing the boundary of the model.
In order to solve the above technical problem, the present application further provides an apparatus for acquiring a particle graph including a model boundary, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the method for acquiring the particle diagram containing the model boundary when executing the computer program.
In order to solve the above-mentioned technical problem, the present application further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the above-mentioned method for acquiring a particle map containing model boundaries.
The application provides a device for acquiring a particle graph containing model boundaries, which comprises the following components: the device comprises a first light source, a second light source, a first camera, a second camera, a reflecting mirror and a spectroscope; the particle plane, the first light source, the reflecting mirror and the second light source are positioned on the first side of the model; the spectroscope, the first camera and the second camera are positioned on the second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on the focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on the focal plane of the second camera; the controller is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on; acquiring a particle graph obtained by a particle plane shot by a first camera and a boundary graph of a model shot by a second camera; the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model. In the device, through the double light sources and the double cameras, the particle plane is positioned on the focal plane of the first camera, the model is positioned on the focal plane of the second camera, and when the first light source, the second light source, the first camera and the second camera are controlled to be simultaneously opened, the boundary and the particle plane of the model are shot at the same time, so that the problem that the model boundary cannot be obtained at all times in the traditional background schlieren technology is solved, and the situation that errors occur in the background schlieren technology measurement due to shaking of the model boundary when the particle plane is shot firstly or a model boundary diagram is shot firstly is avoided as far as possible; the measurement of density variation of the flow field with the solid wall surface is realized.
In addition, the application also provides a method, a device and a computer readable storage medium for acquiring the particle map containing the model boundary, which have the same or corresponding technical characteristics as the above-mentioned equipment for acquiring the particle map containing the model boundary, and the effects are the same as the above.
Drawings
For a clearer description of embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a conventional background schlieren quantitative measurement technique experimental apparatus arrangement;
FIG. 2 is a schematic diagram of an apparatus for acquiring a particle map including model boundaries according to an embodiment of the present application;
FIG. 3 is a flowchart of a method for obtaining a particle map including model boundaries according to an embodiment of the present application;
FIG. 4 is a block diagram of an apparatus for acquiring a particle map including model boundaries according to an embodiment of the present application;
FIG. 5 is a block diagram of an apparatus for acquiring a particle map including model boundaries according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application.
The core of the application is to provide a device, a method, a device and a medium for acquiring a particle graph containing model boundaries, which are used for simultaneously shooting the particle graph and the model boundaries through background schlieren technology.
For the hypersonic boundary layer, the frequency of the second mode is very high, the growth rate is very high, the transition of the boundary layer is greatly influenced, and the second mode fundamental frequency resonance is considered to be the most probable transition path in the natural transition process. The second mode is a high-frequency acoustic mode, and is reflected back and forth between the sonic line and the wall surface, belongs to non-viscous instability, and is reflected back and forth between the sonic line and the wall surface, and disturbance is mainly concentrated near the near wall. In the experiment, a high-frequency pressure pulsation sensor is generally used for measuring the evolution of the second-mode disturbance, but the sensor belongs to contact point measurement and has low spatial resolution. The space field measurement mainly comprises a high-speed schlieren and a particle image velocimetry technology, wherein the high-speed schlieren can measure the boundary layer space field but cannot be quantitatively measured; the particle image velocimetry technology can realize quantitative measurement of flow field speed, but because trace particles are required to be added into the flow field in advance, interference can be brought to the flow field, so that measurement accuracy is affected, and the following performance problem of the trace particles in hypersonic flow is not solved well. In order to quantitatively measure the boundary layer space field, the advantages of the high-speed schlieren and particle image velocimetry technology are required to be combined, and then the background schlieren quantitative measurement technology is developed to quantitatively measure the density change in the flow field, so that the background schlieren test technology is suitable for hypersonic flow with relatively large density change.
Fig. 1 is a schematic diagram of an experimental device layout of a conventional background schlieren quantitative measurement technology. As shown in fig. 1, the device comprises a light source 1, a camera 2 and a model 3, and the main principle is that particles with random distribution are placed on one side of a measured flow field (the particles with random distribution can be called a particle plane 4 here), the particle plane 4 is illuminated by the light source 1, the camera 2 is arranged on the other side of the measured flow field, the camera 2 has a double-frame shooting capability, the particle plane 4 is shot, and an image shot on the particle plane 4 is called a particle graph. When the density of the measured flow field changes, as the light beam passes through the flow field, the light beam deflects, so that particles in the particle plane 4 are moved, an original image of the movement of the particle plane 4 is shot and recorded through the camera 2, after the image is shot, an image matching process is carried out on the original particle image by using a cross-correlation algorithm, and the principle of the cross-correlation algorithm is the same as that of a particle image velocimetry technology, so that the density change of the measured flow field can be quantitatively obtained.
However, the application of the conventional background schlieren technology to the measurement of boundary layer flow fields with solid walls still faces many unsolved problems, mainly including the following two challenges. Firstly, the density change of the boundary layer is smaller, so that the displacement of particles caused by light deflection is smaller, a macro magnifying lens is required to shoot the plane of the particles, and the macro magnifying lens is high in price; second, since the focal plane of the camera is a particle plane, and the model is installed in the experimental bin, the particle plane and the model boundary are not in the same plane, so that the model boundary cannot be obtained from time to time, and the fixed wall position of the lower boundary of the boundary layer cannot be judged. Because the model may have jitter phenomenon in the experimental process, the inability to determine the boundary position of the model from time to time may cause a great error in background schlieren technical measurement. In order to apply the traditional background schlieren technology to quantitatively measure the density change of the boundary layer, the particle plane and the model boundary need to be shot at the same time, and the problem that the model boundary cannot be obtained from time to time is solved.
In order to better understand the aspects of the present application, the present application will be described in further detail with reference to the accompanying drawings and detailed description. Fig. 2 is a schematic layout diagram of an apparatus for acquiring a particle map including model boundaries according to an embodiment of the present application, where, as shown in fig. 2, the apparatus includes: a first light source 110, a second light source 111, a first camera 210, a second camera 211, a reflecting mirror 5, a spectroscope 6;
the first light source 110, the mirror 5, the second light source 111 are located on a first side of the mould 3;
the spectroscope 6, the first camera 210 and the second camera 211 are positioned on the second side of the model 3;
the particle plane 4, the spectroscope 6 and the first camera 210 are positioned in the transmission direction of the light beam emitted by the first light source 110; the particle plane 4 is located at the focal plane of the first camera 210;
the reflecting mirror 5, the model 3, the spectroscope 6 and the second camera 211 are positioned in the transmission direction of the light beam emitted by the second light source 111; model 3 is located at the focal plane of the second camera 211;
the controller is used for controlling the first light source 110, the second light source 111, the first camera 210 and the second camera 211 to be synchronously turned on; acquiring a particle graph obtained by a particle plane 4 shot by a first camera 210 and a boundary graph of a model 3 shot by a second camera 211; the particle map is fused with the boundary map to obtain a particle map containing the boundaries of model 3.
The model in the apparatus for acquiring the particle map including the model boundary is not limited, and as in fig. 2, the model is of a cone structure. In this embodiment, the first light source irradiates the plane of the particles, and the particles are reflected and enter the spectroscope and then enter the first camera. The boundary of the model is irradiated by the second light source, and enters the second camera after passing through the spectroscope. The first light source and the second light source are not limited, as long as the wavelengths of the first light source and the second light source are different. Preferably, the first light source and the second light source are light sources with non-similar wavelengths. If the first light source is a green light source, the second light source is a red light source. The positions where the first light source and the second light source are placed are not limited, and are determined according to practical situations. In order to avoid the interference of the second light source with the light of the first light source reflected by the particle plane as much as possible, in this embodiment, the second light source is placed away from the particle plane, as in fig. 2, the second light source is located at the left side of the particle plane, instead of being located at a position below the light of the first light source reflected by the particle plane; in addition, in order to enable the second light source to illuminate the boundary of the model, the present embodiment places the second light source above the model, and then reflects the light beam emitted from the second light source to the boundary of the model by the mirror, and in order to avoid interference of the mirror with the light beam emitted from the first light source reflected by the particle plane, the present embodiment also places the mirror at a position deviated from the particle plane, as in fig. 2, the mirror is located on the right side of the particle plane.
The traditional experimental equipment of the background schlieren technology only comprises a single camera and a single light source, when a particle plane is positioned on the focal plane of the camera, the boundary of the model and the particle plane are not in the same plane, so that only a particle graph can be obtained, but a boundary graph of the model cannot be obtained; when the boundary of the model is positioned on the focal plane of the camera, the boundary of the model and the particle plane are not positioned on the same plane, so that only a boundary map of the model can be obtained, but a particle map cannot be obtained; if the particle graph is obtained first, and then the boundary graph of the model is obtained, the model may shake, which causes the boundary of the model to change, and brings great error to the background schlieren technical measurement. Specifically, if a boundary map of a model is obtained first, when a particle map is obtained, the boundary of the model that is obtained initially may have changed due to the shake of the model, so that measurement using the background schlieren technique brings about a large error.
Therefore, the embodiment of the application adopts a double camera and a double light source. The positions of the first camera and the second camera are not limited, and in order to avoid that the light beam emitted by the first light source enters the second camera or the light beam emitted by the second light source enters the first camera, the first camera and the second camera are preferably arranged perpendicular to each other. In order to achieve fusion of the particle graph and the boundary graph of the model, the angle of view of the first camera is the same as the angle of view of the second camera. The auxiliary operation of the calibration target disc can be used, so that the sizes of images shot by the view fields of the two cameras are identical; or shooting the particle plane at the same position by using the first camera and the second camera respectively, and when the particle plane shot by the first camera and the particle plane shot by the second camera are the same in size, indicating that the view angle of the first camera is the same as the view angle of the second camera. And before starting to control the operation of the first camera and the second camera, the aperture of the first camera and the aperture of the second camera are adjusted so that the first camera can shoot a clear particle figure and the second camera can shoot a clear boundary figure of the model.
The first light source, the second light source, the first camera and the second camera are controlled by the controller to start working, the first camera shoots a particle plane, and the second camera shoots the boundary of the model, so that the boundary of the particle graph and the model can be obtained simultaneously. In practice, the controller may control the synchronizer to trigger the first light source, the second light source, the first camera and the second camera to start working at the same time. And fusing the particle graph shot by the first camera and the boundary graph of the model shot by the second camera to obtain the particle graph with clear model boundary.
The device for acquiring the particle graph containing the model boundary provided by the embodiment comprises: the device comprises a first light source, a second light source, a first camera, a second camera, a reflecting mirror and a spectroscope; the particle plane, the first light source, the reflecting mirror and the second light source are positioned on the first side of the model; the spectroscope, the first camera and the second camera are positioned on the second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on the focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on the focal plane of the second camera; the controller is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on; acquiring a particle graph obtained by a particle plane shot by a first camera and a boundary graph of a model shot by a second camera; the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model. In the device, through the double light sources and the double cameras, the particle plane is positioned on the focal plane of the first camera, the model is positioned on the focal plane of the second camera, and when the first light source, the second light source, the first camera and the second camera are controlled to be simultaneously opened, the boundary and the particle plane of the model are shot simultaneously, so that the problem that the boundary of the model cannot be obtained in real time in the traditional background schlieren technology is solved, and the situation that errors occur in the background schlieren technology measurement due to shaking of the boundary of the model when the particle plane is shot firstly or a boundary diagram of the model is shot firstly is avoided as far as possible; the measurement of density variation of the flow field with the solid wall surface is realized.
Based on the above embodiment, the light source may be a point light source, which irradiates a part of the particle or a small part of the boundary of the model, so in implementation, the apparatus for acquiring a particle map including the boundary of the model further includes: a first lens and a second lens;
the first lens is positioned between the first light source and the particle plane and positioned in the transmission direction of the light beam emitted by the first light source;
the second lens is positioned between the second light source and the reflecting mirror and is positioned in the transmission direction of the light beam emitted by the second light source.
In the apparatus for acquiring a particle map including a model boundary provided in this embodiment, a beam emitted by a first light source is expanded by a first lens, so that the number of particles irradiated by the first light source increases; the light beam emitted by the second light source is expanded by the second lens to form a sheet light, so that the boundary of a longer model can be photographed.
In the embodiment of the application, the first camera receives the light of the first light source, and the second camera receives the light of the second light source, but in reality, due to the existence of light of other wavelengths or interference between the light of the first light source and the light of the second light source in the environment, the first camera receives not only the light of the first light source, but possibly also the light of other wavelengths; the light received by the second camera is not only the light of the second light source, but may also receive light of other wavelengths, which causes interference to the shot particle graph or the boundary graph of the model. Thus, in practice, the preferred embodiment is that the apparatus for acquiring a particle map comprising model boundaries further comprises: a first optical filter and a second optical filter;
The first optical filter is positioned between the first camera and the spectroscope and positioned in the transmission direction of the light beam emitted by the first light source;
the second optical filter is positioned between the second camera and the spectroscope and positioned in the transmission direction of the light beam emitted by the second light source.
The first optical filter is added between the first camera and the spectroscope, and the second optical filter is added between the second camera and the spectroscope, so that the influence of ambient light on light received by the first camera and light received by the second camera can be reduced as much as possible.
The foregoing describes an apparatus for acquiring a particle map including a model boundary, and the present embodiment further provides a method for acquiring a particle map including a model boundary, which is applied to an apparatus including a first light source, a second light source, a first camera, a second camera, a mirror, and a spectroscope, where a particle plane, the first light source, the mirror, and the second light source are located on a first side of the model; the spectroscope, the first camera and the second camera are positioned on the second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on the focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on the focal plane of the second camera; fig. 3 is a flowchart of a method for obtaining a particle map including model boundaries according to an embodiment of the present application, where, as shown in fig. 3, the method includes:
S10: controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on;
s11: acquiring a particle graph obtained by a particle plane shot by a first camera and a boundary graph of a model shot by a second camera;
s12: the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model.
The method for acquiring the particle map including the model boundary and the above-described device for acquiring the particle map including the model boundary provided in this embodiment have corresponding technical features, and the above-described embodiment of the device for acquiring the particle map including the model boundary has been described in detail, so that the embodiment of the method for acquiring the particle map including the model boundary will not be described herein, and has the same advantages as the above-described device for acquiring the particle map including the model boundary.
In order to obtain a clearer particle graph and a boundary graph of a model, in an implementation, after the first light source, the second light source, the first camera and the second camera are controlled to be synchronously turned on, before the particle graph obtained by the particle plane shot by the first camera and the boundary graph of the model shot by the second camera are obtained, the method for obtaining the particle graph containing the boundary of the model further comprises:
Acquiring a first current light intensity of a first light source and a second current light intensity of a second light source;
judging whether the first current light intensity and the second current light intensity both meet the corresponding target light intensity;
if yes, entering a step of acquiring a particle graph obtained by a particle plane shot by a first camera and a boundary graph of a model shot by a second camera;
if not, the first current light intensity or the second current light intensity is regulated to the target light intensity, and the step of judging whether the first current light intensity and the second current light intensity both meet the corresponding target light intensity is carried out.
The target light intensity is determined based on whether a sharp particle can be seen in the particle map or whether a sharp boundary of the model can be seen in the boundary map of the model. The target light intensity is not limited, and the target light intensity satisfied by the first current light intensity may be the same as or different from the target light intensity satisfied by the second current light intensity, and is determined according to the actual situation. When the first current light intensity or the second current light intensity does not meet the corresponding target light intensity, the first current light intensity or the second current light intensity is adjusted to the target light intensity, and then the boundary diagram of the particle diagram and the model is shot. If the first current light intensity is smaller than the target light intensity, increasing the first current light intensity to the target light intensity; when the first current light intensity is higher than the target light intensity, overexposure may occur, resulting in that a clear particle chart cannot be obtained, and thus, the first current light intensity is reduced to the target light intensity. The second current light intensity is also the same adjustment method.
In the method provided by the embodiment, under the condition that the first current light intensity and the second current light intensity do not meet the corresponding target light intensity, the first current light intensity and the second current light intensity are adjusted, so that a clearer particle graph and a clear boundary graph of a model can be obtained.
In order to make the obtained boundary of the model more accurate, the preferred embodiment is that, before controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on, the method for obtaining the particle map containing the boundary of the model further comprises:
controlling the second light source to be turned on;
adjusting the aperture of the second camera such that the second camera is located at a position where the model is located at the focal plane of the second camera;
controlling the boundary of the second camera shooting model to obtain an initial model boundary diagram;
controlling the second light source and the second camera to be turned off;
correspondingly, before fusing the particle map with the boundary map to obtain the particle map containing the boundary of the model, the method of obtaining the particle map containing the boundary of the model further comprises:
Judging whether the boundary diagram is a boundary diagram of the model according to the initial model boundary diagram;
if yes, a step of fusing the particle graph with the boundary graph so as to acquire the particle graph containing the boundary of the model is carried out;
if not, the first light source, the second light source, the first camera and the second camera are controlled to be turned off, and the step of controlling the first light source, the second light source, the first camera and the second camera to be turned on synchronously is returned.
The process before the first light source, the second light source, the first camera, and the second camera are controlled to be turned on synchronously may be regarded as a pre-recognition process of the model boundary. Notably, prior to pre-recognition of the model boundaries, it is ensured that the images captured by the two camera fields of view are the same size. When adjusting the aperture size of the second camera, it is necessary to ensure that the field of view of the lens of the second camera is unchanged, otherwise the boundary map of the model photographed by the second camera may not match the particle map photographed by the first camera.
The process of pre-identifying the boundary of the model provided by the embodiment enables the accuracy of the obtained boundary map of the model to be further determined when the particle map and the boundary map of the model are obtained at the same time.
In the above embodiments, the apparatus for acquiring the particle map including the model boundary and the method for acquiring the particle map including the model boundary are described, and the present application also provides the corresponding embodiments of the apparatus for acquiring the particle map including the model boundary. It should be noted that the present application describes an embodiment of the device portion from two angles, one based on the angle of the functional module and the other based on the angle of the hardware.
The embodiment provides a device for acquiring a particle diagram containing a model boundary, which is applied to equipment containing a first light source, a second light source, a first camera, a second camera, a reflecting mirror and a spectroscope, wherein a particle plane, the first light source, the reflecting mirror and the second light source are positioned on a first side of the model; the spectroscope, the first camera and the second camera are positioned on the second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on the focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located at the focal plane of the second camera. FIG. 4 is a block diagram of an apparatus for acquiring a particle map including model boundaries according to an embodiment of the present application. The embodiment is based on the angle of the functional module, and comprises:
The control module 10 is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on;
an obtaining module 11, configured to obtain a particle graph obtained from a particle plane captured by a first camera and a boundary graph of a model captured by a second camera;
a fusion module 12, configured to fuse the particle graph with the boundary graph so as to obtain a particle graph including the boundary of the model.
Since the embodiments of the apparatus portion and the embodiments of the method portion correspond to each other, the embodiments of the apparatus portion are referred to the description of the embodiments of the method portion, and are not repeated herein. And has the same advantageous effects as the above-mentioned method of acquiring a particle map containing model boundaries.
FIG. 5 is a block diagram of an apparatus for acquiring a particle map including model boundaries according to another embodiment of the present application. The apparatus for acquiring a particle map including model boundaries according to the present embodiment includes, based on hardware angles, as shown in fig. 5:
a memory 20 for storing a computer program;
a processor 21 for implementing the steps of the method of acquiring a particle map comprising model boundaries as mentioned in the above embodiments when executing a computer program.
Processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 may be implemented in hardware in at least one of a digital signal processor (Digital Signal Processor, DSP), a Field programmable gate array (Field-Programmable Gate Array, FPGA), a programmable logic array (Programmable Logic Array, PLA). The processor 21 may also comprise a main processor, which is a processor for processing data in an awake state, also called central processor (Central Processing Unit, CPU), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a graphics processor (Graphics Processing Unit, GPU) for taking care of rendering and drawing of content that the display screen is required to display. In some embodiments, the processor 21 may also include an artificial intelligence (Artificial Intelligence, AI) processor for processing computing operations related to machine learning.
Memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing a computer program 201, where the computer program, when loaded and executed by the processor 21, is capable of implementing the relevant steps of the method for acquiring a particle map containing model boundaries disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may further include an operating system 202, data 203, and the like, where the storage manner may be transient storage or permanent storage. The operating system 202 may include Windows, unix, linux, among others. The data 203 may include, but is not limited to, the data referred to above in relation to the method of acquiring a particle map containing model boundaries, and the like.
In some embodiments, the apparatus for acquiring the particle map including the model boundary may further include a display 22, an input/output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
It will be appreciated by those skilled in the art that the structure shown in fig. 5 is not limiting of the apparatus for acquiring a particle map containing model boundaries and may include more or fewer components than shown.
The device for acquiring the particle graph containing the model boundary provided by the embodiment of the application comprises a memory and a processor, wherein the processor can realize the following method when executing a program stored in the memory: the method for obtaining the particle diagram containing the model boundary has the same effect.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when executed by a processor, performs the steps as described in the method embodiments above.
It will be appreciated that the methods of the above embodiments, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored on a computer readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium for performing all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The computer readable storage medium provided by the application comprises the method for acquiring the particle map containing the model boundary, and the effects are the same as the above.
The device, the method, the device and the medium for acquiring the particle graph containing the model boundary provided by the application are described in detail above. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. An apparatus for acquiring a particle map containing model boundaries, comprising: the device comprises a first light source, a second light source, a first camera, a second camera, a reflecting mirror and a spectroscope;
the particle plane, the first light source, the reflector and the second light source are positioned on a first side of the model;
the spectroscope, the first camera and the second camera are positioned on a second side of the model;
the particle plane, the spectroscope and the first camera are all positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on a focal plane of the first camera;
the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on a focal plane of the second camera;
the controller is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on; acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera; the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model.
2. The apparatus for acquiring a particle map containing model boundaries of claim 1, further comprising: a first lens and a second lens;
the first lens is positioned between the first light source and the particle plane and positioned in the transmission direction of the light beam emitted by the first light source;
the second lens is positioned between the second light source and the reflecting mirror and positioned in the transmission direction of the light beam emitted by the second light source.
3. The apparatus for acquiring a particle map containing model boundaries according to claim 1 or 2, further comprising: a first optical filter and a second optical filter;
the first optical filter is positioned between the first camera and the spectroscope and positioned in the transmission direction of the light beam emitted by the first light source;
the second optical filter is located between the second camera and the spectroscope and located in the transmission direction of the light beam emitted by the second light source.
4. The apparatus of claim 3, wherein the first camera and the second camera are positioned perpendicular to each other and the angle of view of the first camera is the same as the angle of view of the second camera.
5. A method for acquiring a particle map comprising a model boundary, characterized in that the method is applied to a device comprising a first light source, a second light source, a first camera, a second camera, a mirror, a spectroscope, the particle plane, the first light source, the mirror, the second light source being located on a first side of the model; the spectroscope, the first camera and the second camera are positioned on a second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on a focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on a focal plane of the second camera; the method comprises the following steps:
controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on;
acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera;
the particle map is fused with the boundary map to obtain a particle map containing the boundaries of the model.
6. The method of claim 5, wherein after said controlling said first light source, said second light source, said first camera, said second camera to be turned on simultaneously, said acquiring a particle map of said particle plane taken by said first camera and a boundary map of said model taken by said second camera further comprises:
acquiring a first current light intensity of the first light source and a second current light intensity of the second light source;
judging whether the first current light intensity and the second current light intensity both meet corresponding target light intensity or not;
if yes, entering a step of acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera;
if not, adjusting the first current light intensity or the second current light intensity to the target light intensity, and entering the step of judging whether the first current light intensity and the second current light intensity both meet the corresponding target light intensity.
7. The method of acquiring a particle map containing model boundaries of claim 6, wherein prior to said controlling said first light source, said second light source, said first camera, said second camera to be on simultaneously, said method further comprises:
Controlling the second light source to be turned on;
adjusting the size of the aperture of the second camera so that the second camera is located at a position where the model is located at the focal plane of the second camera;
controlling the second camera to shoot the boundary of the model to obtain an initial model boundary diagram;
controlling the second light source and the second camera to be turned off;
correspondingly, before the fusing the particle map with the boundary map to obtain a particle map containing boundaries of the model, the method further comprises:
judging whether the boundary map is the boundary map of the model according to the initial model boundary map;
if yes, the step of fusing the particle graph with the boundary graph so as to acquire the particle graph containing the boundary of the model is entered;
if not, the first light source, the second light source, the first camera and the second camera are controlled to be turned off, and the step of controlling the first light source, the second light source, the first camera and the second camera to be turned on synchronously is returned.
8. An apparatus for acquiring a particle map comprising a model boundary, characterized in that it is applied to a device comprising a first light source, a second light source, a first camera, a second camera, a mirror, a spectroscope, the particle plane, the first light source, the mirror, the second light source being located on a first side of the model; the spectroscope, the first camera and the second camera are positioned on a second side of the model; the particle plane, the spectroscope and the first camera are positioned in the transmission direction of the light beam emitted by the first light source; the particle plane is located on a focal plane of the first camera; the reflecting mirror, the model, the spectroscope and the second camera are positioned in the transmission direction of the light beam emitted by the second light source; the model is located on a focal plane of the second camera; the device comprises:
The control module is used for controlling the first light source, the second light source, the first camera and the second camera to be synchronously turned on;
the acquisition module is used for acquiring a particle graph obtained by the particle plane shot by the first camera and a boundary graph of the model shot by the second camera;
and the fusion module is used for fusing the particle graph with the boundary graph so as to acquire the particle graph containing the boundary of the model.
9. An apparatus for acquiring a particle map including model boundaries, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method of acquiring a particle map containing model boundaries as claimed in any one of claims 5 to 7 when executing said computer program.
10. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of acquiring a particle map comprising model boundaries according to any one of claims 5 to 7.
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