CN114271795B - Polishing device and operation method - Google Patents
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Abstract
本申请公开了一种打光装置及操作方法，包括：底座和打光调节机构；所述打光调节机构周向分布在所述底座上，所述打光调节机构的数量为至少三组；所述打光调节机构具备光束发射单元和驱动单元；所述驱动单元的驱动端与所述光束发射单元连接；启动所述驱动单元，带动所述光束发射单元运动，使所述光束发射单元发射的激光束照射在目标成像物体所需的照射位置；提高成像质量，且实现多方位光照可调的目的。
The present application discloses a lighting device and an operating method, comprising: a base and a lighting adjustment mechanism; the lighting adjustment mechanism is circumferentially distributed on the base, and the number of the lighting adjustment mechanism is at least three groups; the lighting adjustment mechanism has a light beam emitting unit and a driving unit; the driving end of the driving unit is connected to the light beam emitting unit; the driving unit is started to drive the light beam emitting unit to move, so that the laser beam emitted by the light beam emitting unit is irradiated at the irradiation position required for the target imaging object, thereby improving the imaging quality and achieving the purpose of multi-directional adjustable lighting.
Description
技术领域Technical Field
本公开一般涉及生物光学成像技术领域，具体涉及一种打光装置及操作方法。The present disclosure generally relates to the field of bio-optical imaging technology, and more particularly to a lighting device and an operating method.
背景技术Background Art
在活体小动物全身光声断层成像中，不同小动物体型尺寸和截面形状有差异，同一种动物躯干的不同断层位置差异也较大。In whole-body photoacoustic tomography of living small animals, different animals have different body sizes and cross-sectional shapes, and the positions of different slices in the trunk of the same animal also vary greatly.
目前，现有的系统只适用于某一固定角度进行照明，从而导致声聚焦层光声信号弱或表面信号过强、面外伪影严重等问题，严重影响图像的质量；因此，现有的照明结构亟待改进。At present, the existing system is only suitable for lighting at a fixed angle, which leads to problems such as weak photoacoustic signals in the acoustic focusing layer or excessively strong surface signals and serious out-of-plane artifacts, which seriously affect the quality of the image; therefore, the existing lighting structure needs to be improved urgently.
发明内容Summary of the invention
鉴于现有技术中的上述缺陷或不足，期望提供一种能够任意调节光照位置，使激光能量均匀分布在目标成像动物体内，结构简单且易于实现的打光装置及操作方法。In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a lighting device and an operating method that can arbitrarily adjust the lighting position so that the laser energy is evenly distributed in the body of the target imaging animal, and has a simple structure and is easy to implement.
第一方面，本申请提供一种打光装置，包括：底座和打光调节机构；In a first aspect, the present application provides a lighting device, comprising: a base and a lighting adjustment mechanism;
所述打光调节机构周向分布在所述底座上，所述打光调节机构的数量为至少三组；所述打光调节机构具备光束发射单元和驱动单元；所述驱动单元的驱动端与所述光束发射单元连接；The lighting adjustment mechanisms are circumferentially distributed on the base, and the number of the lighting adjustment mechanisms is at least three; the lighting adjustment mechanisms are provided with a light beam emitting unit and a driving unit; the driving end of the driving unit is connected to the light beam emitting unit;
启动所述驱动单元，带动所述光束发射单元运动，使所述光束发射单元发射的激光束照射在目标成像物体所需的照射位置。The driving unit is started to drive the light beam emitting unit to move, so that the laser beam emitted by the light beam emitting unit is irradiated at the required irradiation position of the target imaging object.
根据本申请实施例提供的技术方案，所述驱动单元包括：According to the technical solution provided in the embodiment of the present application, the driving unit includes:
定向组件，设置在所述底座上，且所述光束发射单元与所述定向组件滑动设置；A directional component is arranged on the base, and the light beam emitting unit is slidably arranged with the directional component;
驱动组件，设置在所述底座上；所述驱动组件的驱动端设有传动组件；所述传动组件与所述光束发射单元连接；A driving assembly is arranged on the base; a driving end of the driving assembly is provided with a transmission assembly; the transmission assembly is connected to the light beam emitting unit;
通过所述驱动组件带动所述传动组件运动，使得所述光束发射单元沿所述定向组件的设定方向运动，产生角位移或平移。The driving assembly drives the transmission assembly to move, so that the light beam emitting unit moves along the set direction of the directional assembly to generate angular displacement or translation.
根据本申请实施例提供的技术方案，所述光束发射单元的光轴发射方向与周向分布的打光调节机构所在中心轴线的夹角为锐角。According to the technical solution provided in the embodiment of the present application, the angle between the emission direction of the optical axis of the light beam emitting unit and the central axis of the circumferentially distributed lighting adjustment mechanism is an acute angle.
根据本申请实施例提供的技术方案，所述定向组件为开设在所述底座上的沟槽、孔轴、导轨或滑道。According to the technical solution provided in the embodiment of the present application, the orientation component is a groove, a hole axis, a guide rail or a slideway provided on the base.
根据本申请实施例提供的技术方案，所述驱动组件为电动、气动或液压的可控驱动部件。According to the technical solution provided in the embodiment of the present application, the drive assembly is an electric, pneumatic or hydraulic controllable drive component.
根据本申请实施例提供的技术方案，所述传动组件为连杆传动，齿轮传动或链条传动的机械动力传力媒介。According to the technical solution provided in the embodiment of the present application, the transmission assembly is a mechanical power transmission medium of connecting rod transmission, gear transmission or chain transmission.
第二方面，本申请提供一种基于上述的打光装置的操作方法，包括以下步骤：In a second aspect, the present application provides an operating method based on the above-mentioned lighting device, comprising the following steps:
步骤S1，将目标成像物体置于超声换能器焦平面中心位置，控制打光调节机构，同步控制光束发射单元使其发射面向圆心或背心运动，将光束打到超声换能器焦平面两侧5毫米的位置；Step S1, placing the target imaging object at the center of the focal plane of the ultrasonic transducer, controlling the lighting adjustment mechanism, and synchronously controlling the light beam emitting unit to move the emitting surface toward the center of the circle or the back, and projecting the light beam to a position 5 mm on both sides of the focal plane of the ultrasonic transducer;
步骤S2,利用当前的光照分布进行初次成像，重建出目标成像物体的初步轮廓；Step S2, using the current illumination distribution to perform initial imaging and reconstruct the preliminary outline of the target imaging object;
步骤S3，将得到的目标成像物体的初步轮廓进行图像识别处理，并转化成离散的图形，进而转化为多个脉冲电信号，电信号的数量根据打光调节机构的数量变化而变化；Step S3, performing image recognition processing on the obtained preliminary outline of the target imaging object, and converting it into a discrete pattern, and then converting it into a plurality of pulse electrical signals, the number of which varies according to the number of the lighting adjustment mechanism;
步骤S4，继续调节所述打光调节机构，使每个光束发射单元所发出的激光束均辐射在目标成像物体所需的照射位置，且处于同一成像截面上。Step S4, continue to adjust the lighting adjustment mechanism so that the laser beams emitted by each beam emitting unit are radiated at the required irradiation position of the target imaging object and are located on the same imaging section.
综上所述，本技术方案具体地提供了打光装置的具体结构。本申请具体通过在底座上设置至少三组周向分布的打光调节机构，打光调节机构具备光束发射单元和驱动单，且驱动单元的驱动端与光束发射单元连接；通过启动驱动单元，带动光束发射单元运动，使光束发射单元发射的激光束照射在目标成像物体所需的照射位置，提高成像质量，且实现多方位光照可调的目的。In summary, the technical solution specifically provides a specific structure of the lighting device. The present application specifically sets at least three groups of circumferentially distributed lighting adjustment mechanisms on the base, and the lighting adjustment mechanism has a light beam emitting unit and a driving unit, and the driving end of the driving unit is connected to the light beam emitting unit; by starting the driving unit, the light beam emitting unit is driven to move, so that the laser beam emitted by the light beam emitting unit is irradiated at the required irradiation position of the target imaging object, thereby improving the imaging quality and achieving the purpose of multi-directional light adjustment.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更明显：Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
图1为打光装置的结构示意图。FIG. 1 is a schematic structural diagram of a lighting device.
图2为打光调节机构的结构示意图。FIG. 2 is a schematic structural diagram of a lighting adjustment mechanism.
图3为打光装置的结构示意图。FIG. 3 is a schematic structural diagram of a lighting device.
图4为打光调节机构的结构示意图。FIG. 4 is a schematic structural diagram of a lighting adjustment mechanism.
图中标号：1、底座；2、打光调节机构；3、光束发射单元；4、驱动单元；5、连杆；6、万向节联轴器；7、法兰；8、夹持部；9、旋转轴；10、定位孔；11、安装件。Numbers in the figure: 1. base; 2. lighting adjustment mechanism; 3. light beam emitting unit; 4. driving unit; 5. connecting rod; 6. universal joint coupling; 7. flange; 8. clamping part; 9. rotating shaft; 10. positioning hole; 11. mounting part.
具体实施方式DETAILED DESCRIPTION
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释相关发明，而非对该发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与发明相关的部分。The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
实施例1Example 1
请参考图1和图3所示的本申请提供的一种打光装置的结构示意图，包括：底座1和打光调节机构2；Please refer to FIG. 1 and FIG. 3 , which are schematic diagrams of a lighting device provided by the present application, including: a base 1 and a lighting adjustment mechanism 2;
所述打光调节机构2周向分布在所述底座1上，所述打光调节机构2的数量为至少三组；所述打光调节机构2具备光束发射单元3和驱动单元4；所述驱动单元4的驱动端与所述光束发射单元3连接；The lighting adjustment mechanism 2 is circumferentially distributed on the base 1, and the number of the lighting adjustment mechanism 2 is at least three groups; the lighting adjustment mechanism 2 comprises a light beam emitting unit 3 and a driving unit 4; the driving end of the driving unit 4 is connected to the light beam emitting unit 3;
启动所述驱动单元4，带动所述光束发射单元3运动，使所述光束发射单元3发射的激光束照射在目标成像物体所需的照射位置。The driving unit 4 is started to drive the light beam emitting unit 3 to move, so that the laser beam emitted by the light beam emitting unit 3 is irradiated at the required irradiation position of the target imaging object.
在本实施例中，底座1，作为本照明结构的基础承载部件；打光调节机构2，其数量为至少三组，打光调节机构2周向分布在底座1上，通过改变打光调节机构2面对目标成像物体的角度，提高光声图像质量；其中，打光调节机构2的数量可根据实际需要进行设定；In this embodiment, the base 1 is used as the basic bearing component of the lighting structure; the lighting adjustment mechanism 2 is at least three in number, and the lighting adjustment mechanism 2 is circumferentially distributed on the base 1, and the photoacoustic image quality is improved by changing the angle at which the lighting adjustment mechanism 2 faces the target imaging object; wherein the number of the lighting adjustment mechanism 2 can be set according to actual needs;
并且，打光调节机构2具备光束发射单元3和驱动单元4；Furthermore, the lighting adjustment mechanism 2 includes a light beam emitting unit 3 and a driving unit 4;
光束发射单元3，用于发射激光至目标成像物体上；此处，光束发射单元3的光轴发射方向与周向分布的打光调节机构2所在中心轴线的夹角为锐角。The light beam emitting unit 3 is used to emit laser light onto the target imaging object; here, the angle between the light axis emitting direction of the light beam emitting unit 3 and the central axis of the circumferentially distributed lighting adjustment mechanism 2 is an acute angle.
驱动单元4，其驱动端与光束发射单元3连接，通过启动驱动单元4，可带动光束发射单元3运动，使得光束发射单元3发射的激光束照射在目标成像物体所需的照射位置上；A driving unit 4, whose driving end is connected to the light beam emitting unit 3, can drive the light beam emitting unit 3 to move by starting the driving unit 4, so that the laser beam emitted by the light beam emitting unit 3 is irradiated at the irradiation position required for the target imaging object;
具体地，驱动单元4包括：定向组件以及驱动组件；Specifically, the driving unit 4 includes: a directional component and a driving component;
定向组件，设置在底座1上，且其与光束发射单元3滑动设置，用于为光束发射单元3提供设定的运动轨道；此处，定向组件的类型，例如为开设在底座1上的沟槽、孔轴、导轨或者滑道；The directional component is arranged on the base 1 and is slidably arranged with the light beam emitting unit 3 to provide a set motion track for the light beam emitting unit 3; the type of the directional component is, for example, a groove, a hole axis, a guide rail or a slideway provided on the base 1;
驱动组件，设置在底座1上，且驱动组件的驱动端设有传动组件，传动组件与光束发射单元3连接，通过启动驱动组件带动传动组件运动，使得光束发射单元3可沿定向组件的设定方向运动，使得光束发射单元3产生角位移或平移；此处，驱动组件的类型，例如为电动、气动或液压的可控驱动部件；传动组件的类型，例如为连杆传动，齿轮传动或链条传动的机械动力传力媒介；The driving assembly is arranged on the base 1, and the driving end of the driving assembly is provided with a transmission assembly, which is connected to the light beam emitting unit 3. By starting the driving assembly to drive the transmission assembly to move, the light beam emitting unit 3 can move along the set direction of the directional assembly, so that the light beam emitting unit 3 generates angular displacement or translation; here, the type of the driving assembly is, for example, an electric, pneumatic or hydraulic controllable driving component; the type of the transmission assembly is, for example, a mechanical power transmission medium of a connecting rod drive, a gear drive or a chain drive;
例如，如图1和图2所示，驱动组件的类型，例如为东方直线推杆五相步进电机，其型号，例如为DRL28PB1-03，LIMO，0.75A；此处，可通过螺栓将东方直线推杆五相步进电机安装在底座1上；For example, as shown in FIG. 1 and FIG. 2 , the type of the driving component is, for example, a five-phase stepper motor of an Oriental linear actuator, and its model is, for example, DRL28PB1-03, LIMO, 0.75A; here, the five-phase stepper motor of the Oriental linear actuator can be mounted on the base 1 by bolts;
传动组件的类型，例如为连杆传动，例如，包括：设置在上述的东方直线推杆五相步进电机的输出轴上的万向节联轴器6，以及与光束发射单元3一端连接的连杆5，且连杆5的自由端与万向节联轴器6连接；The type of transmission assembly, for example, is a connecting rod transmission, for example, including: a universal joint coupling 6 arranged on the output shaft of the above-mentioned Oriental linear actuator five-phase stepper motor, and a connecting rod 5 connected to one end of the light beam emitting unit 3, and the free end of the connecting rod 5 is connected to the universal joint coupling 6;
通过启动东方直线推杆五相步进电机，其输出轴带动万向节联轴器6转动，万向节联轴器6将转动力转换为直线运动力，再通过连杆5带动光束发射单元3移动，以实现对发射的激光的位置进行调整，直至激光辐射在目标成像物体的规定位置上。By starting the five-phase stepper motor of the Oriental linear actuator, its output shaft drives the universal joint coupling 6 to rotate, and the universal joint coupling 6 converts the rotational force into a linear motion force, and then drives the light beam emitting unit 3 to move through the connecting rod 5 to adjust the position of the emitted laser until the laser radiation is at the specified position of the target imaging object.
或者，例如，如图3和图4所示，安装件11，通过法兰7连接在底座1上，形成安装基座；Or, for example, as shown in FIG3 and FIG4 , the mounting member 11 is connected to the base 1 via the flange 7 to form a mounting base;
法兰7，将安装件11固接在底座1上，起到连接固定安装件11的作用；The flange 7 is used to fix the mounting member 11 to the base 1 and plays the role of connecting and fixing the mounting member 11;
夹持部8，设置在安装件11上，用于夹持光束发射单元3；A clamping portion 8, provided on the mounting member 11, for clamping the light beam emitting unit 3;
旋转轴9，将夹持部8一侧与安装件11活动连接，使得夹持部8能够绕旋转轴9转动，以调整光束发射单元3的位置；The rotating shaft 9 movably connects one side of the clamping part 8 with the mounting member 11, so that the clamping part 8 can rotate around the rotating shaft 9 to adjust the position of the light beam emitting unit 3;
定位孔10，设置在夹持部8上远离旋转轴9的一侧；A positioning hole 10 is provided on a side of the clamping portion 8 away from the rotating shaft 9;
通过夹持部8将光束发射单元3夹持固定住，将夹持部8绕旋转轴9转动，调整光束发射单元3的角度，再利用销轴将定位孔10固定，以将其调整好的状态固定，以实现对发射的激光的位置进行调整，直至激光辐射在目标成像物体的规定位置上。The light beam emitting unit 3 is clamped and fixed by the clamping part 8, and the clamping part 8 is rotated around the rotating axis 9 to adjust the angle of the light beam emitting unit 3, and then the positioning hole 10 is fixed by the pin shaft to fix it in the adjusted state, so as to adjust the position of the emitted laser until the laser radiates at the specified position of the target imaging object.
实施例三Embodiment 3
一种基于实施例1所述的打光装置的操作方法，包括以下步骤：An operating method of the lighting device according to embodiment 1 comprises the following steps:
步骤S1，将目标成像物体置于超声换能器焦平面中心位置，控制打光调节机构2，同步控制光束发射单元3使其发射面向圆心或背心运动，将光束打到超声换能器焦平面两侧5毫米的位置；Step S1, placing the target imaging object at the center of the focal plane of the ultrasonic transducer, controlling the lighting adjustment mechanism 2, and synchronously controlling the light beam emitting unit 3 to move the emitting surface toward the center of the circle or the back, and projecting the light beam to a position 5 mm on both sides of the focal plane of the ultrasonic transducer;
步骤S2,利用当前的光照分布进行初次成像，重建出目标成像物体的初步轮廓；Step S2, using the current illumination distribution to perform initial imaging and reconstruct the preliminary outline of the target imaging object;
步骤S3，将得到的目标成像物体的初步轮廓进行图像识别处理，并转化成离散的图形，进而转化为多个脉冲电信号，电信号的数量根据打光调节机构2的数量变化而变化；Step S3, performing image recognition processing on the obtained preliminary outline of the target imaging object, and converting it into a discrete pattern, and then converting it into a plurality of pulse electrical signals, the number of which varies according to the number of the lighting adjustment mechanism 2;
步骤S4，继续调节所述打光调节机构2，使每个光束发射单元3所发出的激光束均辐射在目标成像物体所需的照射位置，且处于同一成像截面上。Step S4, continue to adjust the lighting adjustment mechanism 2, so that the laser beams emitted by each beam emitting unit 3 are radiated at the required irradiation position of the target imaging object and are located on the same imaging section.
在本实施例中，以十个光束发射单元3为例，In this embodiment, taking ten light beam emitting units 3 as an example,
步骤S1：将目标成像物体放置超声换能器焦平面中心位置，控制调节单元，同步控制光束发射单元使其发射面向圆心或背心运动，并且每个光束发射单元3的位置和伸缩量是相同的，将光束打到超声换能器焦平面两侧5毫米的位置；Step S1: Place the target imaging object at the center of the focal plane of the ultrasonic transducer, control the adjustment unit, and synchronously control the beam emitting unit to make its emitting surface move toward the center of the circle or the back, and the position and extension amount of each beam emitting unit 3 are the same, and the beam is shot to the position 5 mm on both sides of the focal plane of the ultrasonic transducer;
步骤S2：利用初始光照进行初次成像，得到断层成像，即目标成像物体的外形轮廓；Step S2: Performing initial imaging using initial illumination to obtain a tomographic image, that is, an outline of the target imaging object;
步骤S3：利用Sobel算子对得到的断层成像进行卷积模板处理，再进行高通滤波操作，得到整体图像的边缘；整体图像的边缘经阈值分割处理，提取强度最大值的边缘，此边缘形状即为目标成像物体的轮廓形状；Step S3: Using the Sobel operator to perform convolution template processing on the obtained tomographic image, and then performing a high-pass filtering operation to obtain the edge of the overall image; the edge of the overall image is processed by threshold segmentation to extract the edge with the maximum intensity, and the shape of this edge is the contour shape of the target imaging object;
找出上述得到的轮廓形状对应的外接正十边形，根据曲线上每个点到此外接正十边形的距离，得到外接正十边形邻边的长度和夹角，从而转化为一个适合与物体轮廓形状的十边形；Find the circumscribed regular decagon corresponding to the outline shape obtained above, and obtain the length and angle of the adjacent sides of the circumscribed regular decagon according to the distance from each point on the curve to the circumscribed regular decagon, so as to transform it into a decagon that fits the outline shape of the object;
上述得到的十边形与其初始的基准圆所对应的距离差，再转化为十个不同脉冲的电信号；且此距离差与脉冲数量、光束发射单元3移动距离均呈线性关系；The distance difference between the decagon obtained above and its initial reference circle is then converted into electrical signals of ten different pulses; and this distance difference is linearly related to the number of pulses and the moving distance of the light beam emitting unit 3;
步骤S4：利用驱动单元4对其相应的光束发射单元3进行调整，根据上述的不同距离对应不同的脉冲数量，控制光束发射单元3的移动距离；Step S4: using the driving unit 4 to adjust the corresponding light beam emitting unit 3, and controlling the moving distance of the light beam emitting unit 3 according to the different distances corresponding to the different pulse numbers;
利用驱动单元4的输出轴带动万向节联轴器6转动，再通过连杆5带动光束发射单元3移动，对所述光束发射单元3的位置的位置进行调整，The output shaft of the driving unit 4 is used to drive the universal joint coupling 6 to rotate, and then the connecting rod 5 is used to drive the light beam emitting unit 3 to move, so as to adjust the position of the light beam emitting unit 3.
或者，利用夹持部8将光束发射单元3夹持固定住，将夹持部8绕旋转轴9转动，调整光束发射单元3的角度，再利用销轴将定位孔10固定，从而调整所述光束发射单元3的位置，使得调整后的光斑均匀辐射在目标成像物体的所需位置上，且处于同一水平面上。Alternatively, the light beam emitting unit 3 is clamped and fixed by the clamping part 8, and the clamping part 8 is rotated around the rotating axis 9 to adjust the angle of the light beam emitting unit 3, and then the positioning hole 10 is fixed by a pin shaft, thereby adjusting the position of the light beam emitting unit 3 so that the adjusted light spot is evenly radiated at the desired position of the target imaging object and is on the same horizontal plane.
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本申请中所涉及的发明范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离所述发明构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.
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