CN115281601A - Eye crack width measuring device and using method thereof - Google Patents
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Abstract
本发明提供一种眼裂宽度测量装置，包括：测量单元，配置为容纳并定位被测量者的头部；控制单元，配置为控制所述的测量单元的工作状态；所述的测量单元包括测量腔体，其内部设置有拍摄模块和指引灯模块，其中所述指引灯模块引导被测量者注视预设方向；拍摄模块获取待处理数据前包括参数标定步骤，所述的参数标定步骤用于获取待处理数据对应的单个像素与标定物实际尺寸之间的映射关系；控制单元控制拍摄模块拍摄被测量者面部以获得待处理数据；控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值。该装置提高了眼裂宽度的测量便捷性和测量精度。
The invention provides an eye cleft width measurement device, comprising: a measurement unit, configured to accommodate and position the head of a person to be measured; a control unit, configured to control the working state of the measurement unit; the measurement unit includes a measurement unit. A cavity, inside of which is provided a shooting module and a guide light module, wherein the guide light module guides the measured person to look at the preset direction; the shooting module includes a parameter calibration step before acquiring the data to be processed, and the parameter calibration step is used to obtain The mapping relationship between the single pixel corresponding to the data to be processed and the actual size of the calibration object; the control unit controls the shooting module to shoot the face of the measured person to obtain the data to be processed; the control unit divides the data to be processed to obtain the pupil center coordinates and upper Eyelid contour coordinates; and comparing the pupil center coordinates with the upper eyelid contour coordinates to obtain a measurement of cleft width. The device improves the measurement convenience and measurement accuracy of the eye cleft width.
Description
技术领域technical field
本发明涉及测量仪器技术领域，具体涉及一种眼裂宽度测量装置及其使用方法。The invention relates to the technical field of measuring instruments, in particular to a device for measuring the width of an eye fissure and a method for using the same.
背景技术Background technique
眼裂宽度是常见的眼部参数测量指标之一，该参数对医疗或科研均存在重要的意义。出于成本和操作便捷性的考量，当前常采用人工测量的方式获取被测者的眼裂宽度数据。具体方案如下:测量者将直尺放置在患者眼球前方，读取瞳孔中心到上眼睑边缘的距离，并将该距离作为眼裂宽度定量指标。实践中发现，上述测量方法因操作者个体间的操作习惯或使用经验的差异将导致测量结果缺乏稳定性。例如，操作者难以定位通孔中心、或难以保持每次测量时直尺的放置角度相等、或者难以保持每次读数时视线角度相等；上述各种操作习惯均会导致测量结果存在差异，测量结果的重复性差，进而无法长期准确的追踪被测者的眼裂宽度数据变化过程。The width of the eye fissure is one of the common ocular parameter measurement indicators, which is of great significance to medical treatment or scientific research. Due to the consideration of cost and operation convenience, manual measurement is often used to obtain the eye fissure width data of the subject. The specific scheme is as follows: the measurer places the ruler in front of the patient's eyeball, reads the distance from the center of the pupil to the edge of the upper eyelid, and uses this distance as a quantitative indicator of the width of the eye fissure. In practice, it has been found that the measurement results lack stability due to differences in operating habits or experience among individual operators in the above measurement methods. For example, it is difficult for the operator to locate the center of the through hole, or to keep the straightedge at the same angle for each measurement, or to keep the line of sight angles for each reading at the same angle; the above-mentioned various operating habits will lead to differences in the measurement results, and the measurement results The repeatability is poor, and thus it is impossible to accurately track the change process of the testee's eye fissure width data for a long time.
发明内容Contents of the invention
为了克服相关技术中设备存在的诸多问题中的至少一者，本发明提供了一种眼裂宽度测量装置及其使用方法。In order to overcome at least one of the problems of the devices in the related art, the present invention provides a device for measuring the width of an eye fissure and a method for using the same.
为实现上述目的，根据本发明实施例的一个方面，提供了一种眼裂宽度测量装置，包括：In order to achieve the above purpose, according to an aspect of the embodiments of the present invention, a device for measuring the width of an eye fissure is provided, including:
测量单元，配置为容纳并定位被测量者的头部；a measurement unit configured to receive and position the head of the person being measured;
控制单元，配置为控制所述的测量单元的工作状态；a control unit configured to control the working state of the measuring unit;
所述的测量单元包括测量腔体，其内部设置有拍摄模块和指引灯模块，其中The measurement unit includes a measurement cavity, and a photographing module and a guide light module are arranged inside it, wherein
所述指引灯模块引导被测量者注视预设方向；The guide light module guides the subject to look at a preset direction;
拍摄模块获取待处理数据前包括参数标定步骤，所述的参数标定步骤用于获取待处理数据对应的单个像素与标定物实际尺寸之间的映射关系；The photographing module includes a parameter calibration step before obtaining the data to be processed, and the parameter calibration step is used to obtain a mapping relationship between a single pixel corresponding to the data to be processed and the actual size of the calibration object;
控制单元控制拍摄模块拍摄被测量者面部以获得待处理数据；The control unit controls the photographing module to photograph the face of the subject to obtain the data to be processed;
控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值。The control unit divides the data to be processed to obtain the pupil center coordinates and the upper eyelid contour coordinates; and compares the pupil center coordinates with the upper eyelid contour coordinates to obtain the eye fissure width measurement value.
可选的，所述的测量腔体内还设置有额托模块和/或颌托模块，Optionally, a forehead rest module and/or a jaw rest module are also arranged in the measurement cavity,
基于拍摄模块获取的头部位置信息，所述的控制单元控制额托模块运动而调节头部的前后位置；和/或，所述的控制单元控制颌托模块运动而调节头部的上下位置。Based on the head position information acquired by the camera module, the control unit controls the movement of the forehead rest module to adjust the front and rear positions of the head; and/or, the control unit controls the movement of the jaw rest module to adjust the up and down position of the head.
可选的，所述的控制单元分割所述的待处理数据之前还包括：Optionally, before dividing the data to be processed, the control unit further includes:
分析所述待处理数据并定位眼部区域，再将定位出的眼部区域对应的数据作为待处理数据。The data to be processed is analyzed and the eye area is located, and the data corresponding to the located eye area is used as the data to be processed.
可选的，若定位出的眼部区域对应的数据的噪声超过设定阈值时，则对待处理数据进行高斯滤波，并将滤波后的数据作为待处理数据。Optionally, if the noise of the data corresponding to the located eye region exceeds a set threshold, Gaussian filtering is performed on the data to be processed, and the filtered data is used as the data to be processed.
可选的，所述的控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标包括：Optionally, the step of dividing the data to be processed by the control unit to obtain the pupil center coordinates and the upper eyelid contour coordinates includes:
分割所述的待处理数据以将眼部区域、瞳孔与背景分离，并对瞳孔轮廓进行圆形拟合，将所述圆形对应的圆心坐标作为瞳孔中心坐标；以及Segmenting the data to be processed to separate the eye region, the pupil from the background, and performing circular fitting on the pupil contour, using the coordinates of the center of the circle corresponding to the circle as the coordinates of the center of the pupil; and
对眼部区域进行边缘检测并通过图像的梯度变换获得上眼睑轮廓坐标。Edge detection is performed on the eye region and the coordinates of the upper eyelid contour are obtained through the gradient transformation of the image.
可选的，所述的比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值包括：Optionally, the comparison of the coordinates of the pupil center and the coordinates of the upper eyelid contour to obtain the measured value of the eye fissure width includes:
以瞳孔中心A的横坐标XA为基准，在所述的上眼睑轮廓坐标中求得与所述横坐标XA相等的点B对应的纵坐标XB，并按下式计算眼裂宽度D：Taking the abscissa XA of the pupil center A as a reference, obtain the ordinate XB corresponding to the point B equal to the abscissa XA in the upper eyelid contour coordinates, and calculate the eye cleft width D according to the following formula:
D＝|(YA-YB)*K|D＝|(Y A -Y B )*K|
其中，YA和YB分别为瞳孔中心的纵坐标和B点的纵坐标；K为所述的映射关系。Wherein, Y A and Y B are the vertical coordinates of the center of the pupil and the vertical coordinates of point B respectively; K is the mapping relationship described above.
可选的，存储所述的眼裂宽度数据，并追踪被测量者的眼裂宽度数据变化趋势。Optionally, store the eye fissure width data, and track the change trend of the measured person's eye fissure width data.
根据本发明实施例的另一个方面，提供一种眼裂宽度测量装置的使用方法，所述的测量装置包括：According to another aspect of the embodiments of the present invention, a method for using a device for measuring the width of an eye fissure is provided, and the measuring device includes:
测量单元，配置为容纳并定位被测量者的头部；a measurement unit configured to receive and position the head of the person being measured;
控制单元，配置为控制所述的测量单元的工作状态；a control unit configured to control the working state of the measuring unit;
所述方法包括：The methods include:
拍摄模块参数标定，所述的参数标定用于获取待处理数据对应的单个像素与标定物实际尺寸之间的映射关系；Camera module parameter calibration, the parameter calibration is used to obtain the mapping relationship between a single pixel corresponding to the data to be processed and the actual size of the calibration object;
调整部分地置于测量腔体内的被测量者的头部位置，以使被测量者的面部正对拍摄模块；Adjusting the position of the head of the person being measured, who is partially placed in the measurement cavity, so that the face of the person being measured faces the camera module;
引导被测者看向点亮的指引灯模块后，控制单元控制拍摄模块拍摄被测量者面部以获得待处理数据；After guiding the subject to look at the lit guide light module, the control unit controls the shooting module to capture the face of the subject to obtain data to be processed;
控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值。The control unit divides the data to be processed to obtain the pupil center coordinates and the upper eyelid contour coordinates; and compares the pupil center coordinates with the upper eyelid contour coordinates to obtain the eye fissure width measurement value.
可选的，所述的控制单元分割所述的待处理数据之前还包括：分析所述待处理数据并定位眼部区域，再将定位出的眼部区域对应的数据作为待处理数据；若定位出的眼部区域对应的数据的噪声超过设定阈值时，则对待处理数据进行高斯滤波，并将滤波后的数据作为待处理数据。Optionally, before the control unit divides the data to be processed, it further includes: analyzing the data to be processed and locating the eye area, and then using the data corresponding to the located eye area as the data to be processed; When the noise of the data corresponding to the eye area exceeds the set threshold, Gaussian filtering is performed on the data to be processed, and the filtered data is used as the data to be processed.
可选的，控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值包括：Optionally, the control unit divides the data to be processed to obtain the pupil center coordinates and the upper eyelid contour coordinates; and comparing the pupil center coordinates and the upper eyelid contour coordinates to obtain the eye fissure width measurement includes:
分割所述的待处理数据以将眼部区域、瞳孔与背景分离，并对瞳孔轮廓进行圆形拟合，将所述圆形对应的圆心坐标作为瞳孔中心坐标；以及对眼部区域进行边缘检测并通过图像的梯度变换获得上眼睑轮廓坐标；Segmenting the data to be processed to separate the eye region, the pupil from the background, and performing circular fitting on the pupil contour, using the center coordinates corresponding to the circle as the pupil center coordinates; and performing edge detection on the eye region And obtain the upper eyelid contour coordinates through the gradient transformation of the image;
以瞳孔中心A的横坐标XA为基准，在所述的上眼睑轮廓坐标中求得与所述横坐标XA相等的点B对应的纵坐标XB，并按下式计算眼裂宽度D：Based on the abscissa X A of the center of the pupil A, obtain the ordinate X B corresponding to the point B equal to the abscissa X A in the upper eyelid contour coordinates, and calculate the eye cleft width D according to the following formula :
D＝|(YA-YB)*K|D＝|(Y A -Y B )*K|
其中，YA和YB分别为瞳孔中心的纵坐标和B点的纵坐标；K为所述的映射关系。Wherein, Y A and Y B are the vertical coordinates of the center of the pupil and the vertical coordinates of point B respectively; K is the mapping relationship described above.
本发明的技术方案至少具有如下优点或有益效果：The technical solution of the present invention has at least the following advantages or beneficial effects:
(1)被测者的头部的部分位于设备的空腔内，其基本封闭空腔的开口端部，从而减小或消除环境光线进入测量空腔；有效避免环境光线对测量者注意力的影响，提高了测量精度和效率。装置内仅设置有指引灯模块，避免因额外的补光灯的光线影响被测量者的注视方向，并且补光灯的光线强度会造成被测量者眼部的不适等问题，提高了被测者的测量体验。本发明的测量装置或方法能够精确定位被测量者的头部姿态，通过拍摄模块采集被测量者面部数据，自动的数据识别以获得眼裂宽度参数，从而提高了数据测量的准确性，并提高测量效率。(1) The part of the subject's head is located in the cavity of the device, which basically closes the opening end of the cavity, thereby reducing or eliminating the ambient light entering the measurement cavity; effectively avoiding the interference of ambient light on the measurer's attention Influence, improve measurement accuracy and efficiency. The device is only equipped with a guide light module to avoid the impact of the extra light on the gaze direction of the person being measured, and the light intensity of the light will cause discomfort to the eyes of the person being measured. measurement experience. The measurement device or method of the present invention can accurately locate the head posture of the subject, collect the facial data of the subject through the shooting module, and automatically identify the data to obtain the eye fissure width parameter, thereby improving the accuracy of data measurement and improving Measure efficiency.
(2)对采集到的数据进行眼部区域定位，定位出被测量者的脸部图像中的眼部区域，并将眼部区域作为后续流程的分析基础，能够有效减少数据处理量和处理的时间，提高眼裂宽度的测量分析速度。(2) Carry out eye region positioning on the collected data, locate the eye region in the face image of the person being measured, and use the eye region as the analysis basis for the follow-up process, which can effectively reduce the amount of data processing and processing time Time, improve the speed of measurement and analysis of eye fissure width.
(3)对定位出的眼部区域数据进行高斯滤波，去除图像噪声，提高数据的准确性，进而提高测量精度。(3) Gaussian filtering is performed on the located eye area data to remove image noise, improve data accuracy, and then improve measurement accuracy.
(4)所述测量装置能够调整被测量者的额部和颌部位置，使被测者保持正确的头部姿态，从而获得清晰的眼位画面，提高了测量的准确性。所述的测量装置能够存储被测量者的数据，并将所述的数据与被测量者的身份识别码关联，从而便于观察被测量者的眼裂宽度数据的变化过程。(4) The measuring device can adjust the position of the forehead and jaw of the subject to be measured, so that the subject can maintain a correct head posture, thereby obtaining a clear eye position picture and improving the accuracy of measurement. The measuring device can store the data of the measured person, and associate the data with the measured person's identification code, so as to facilitate the observation of the change process of the measured person's eye fissure width data.
附图说明Description of drawings
附图用于更好地理解本发明，不构成对本发明的不当限定。其中：The accompanying drawings are used to better understand the present invention, and do not constitute improper limitations to the present invention. in:
图1是根据本发明实施例的眼裂宽度测量装置主体结构的示意图；Fig. 1 is a schematic diagram of the main structure of an eye fissure width measuring device according to an embodiment of the present invention;
图2是根据本发明实施例的眼裂宽度测量装置工作状态的示意图；Fig. 2 is a schematic diagram of the working state of the eye fissure width measuring device according to an embodiment of the present invention;
图3是根据本发明实施例的眼裂宽度测量装置工作流程的示意图；3 is a schematic diagram of the working process of the eye fissure width measuring device according to an embodiment of the present invention;
图4是根据本发明实施例的眼裂宽度获取原理示意图；Fig. 4 is a schematic diagram of the principle of obtaining the width of an eye fissure according to an embodiment of the present invention;
图5-6是现有技术中的眼裂宽度测量装置的示意图。5-6 are schematic diagrams of eye fissure width measuring devices in the prior art.
具体实施方式Detailed ways
以下结合附图对本发明的示范性实施例做出说明，其中包括本发明实施例的各种细节以助于理解，应当将它们认为仅仅是示范性的。因此，本领域普通技术人员应当认识到，可以对这里描述的实施例做出各种改变和修改，而不会背离本发明的范围和精神。同样，为了清楚和简明，以下的描述中省略了对公知功能和结构的描述。Exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
为了解决背景技术中的至少一个问题，根据本发明实施例的一个方面提供了一种眼裂宽度测量装置。In order to solve at least one problem in the background art, an aspect of the embodiments of the present invention provides a device for measuring the width of an eye fissure.
为了便于理解方案，此处先对相关技术中的测量装置及其测量原理进行描述。如图5-6所示，相关技术中眼裂宽度常用尺子进行测量。具体的，测量者让被测量者放松，以第一眼位(即被测者正视前方)注视远处，且保持正常头位，测量者沿铅锤方向握持直尺并使直尺具有刻度的边缘靠近瞳孔中心，通过目测读取瞳孔中央位置至上眼睑边缘的距离以获得眼裂宽度数据。通常，人眼的眼裂宽度范围为3.5-5.5mm。目前的测量方法依赖测量者手部的熟练程度和读数的准确性，测量过程操作复杂，需要被测者高度配合测量者的操作指示，目测读数的误差较大造成眼裂宽度的测量误差较大。此外，不同的测量者的测量习惯不同，导致数据偏差较大，当被测者更换测量地点或更换测量人员后，将导致眼裂宽度的测量数据大幅度波动，数据的重复性差，无法长期精确的追踪眼裂宽度的变化过程。再者，上述的测量结果无法长期保存，易丢失部分或全部数据。In order to facilitate the understanding of the solution, the measurement device and its measurement principle in the related art are firstly described here. As shown in Figures 5-6, the width of the eye fissure is usually measured with a ruler in the related art. Specifically, the measurer makes the subject relax, stares at the distance with the first eye position (that is, the subject looks straight ahead), and keeps the normal head position, and the measurer holds the ruler along the plumb direction and makes the ruler have a scale The edge of the eyelid is close to the center of the pupil, and the distance from the center of the pupil to the edge of the upper eyelid is read visually to obtain the data of the width of the eye fissure. Typically, the width of the cleft in the human eye ranges from 3.5-5.5 mm. The current measurement method relies on the proficiency of the measurer's hand and the accuracy of the readings. The operation of the measurement process is complicated, and the subject needs to be highly cooperative with the measurer's operating instructions. The large error in the visual reading results in a large measurement error in the width of the eye fissure. . In addition, different measurers have different measurement habits, resulting in large data deviations. When the subject changes the measurement location or the measurement personnel, the measurement data of the eye fissure width will fluctuate greatly, the repeatability of the data is poor, and it cannot be accurate for a long time. The process of tracking the change of eye fissure width. Furthermore, the above-mentioned measurement results cannot be stored for a long time, and some or all of the data are easily lost.
为此，本发明的一个实施例提供一种新的测量装置，具体如图1和2所示。其包括测量单元，配置为容纳并定位被测量者的头部。由于人眼对光线较为敏感，因此，测量装置外部的光线变化会影响被测量者的注视方向，从而影响测量结果。为此，该实施例中的测量单元具有空腔结构，所述的空腔结构不仅用于安装测量元件，同时也用于容纳和定位被测者的头部。也即，被测者的头部部分位于所述空腔内，其基本封闭空腔的开口端部，从而减小或消除环境光线进入测量空腔；有效避免环境光线对测量者注意力的影响，提高了测量精度和效率。进一步，测量装置包括控制单元107，配置为控制所述的测量单元的工作状态。实践中，可以将控制单元与测量单元一体化设计以提高集成度；也可以将两者分体设置。采用分体式设计时，操作人员操作控制单元的同时可以方便观察被测量人员的头部姿态并控制设备的工作状态。示例性的，所述的控制单元可以包括显示器、键盘、主机等结构。所述的测量单元包括测量腔体104，其内部设置有拍摄模块103和指引灯模块105。所述的测量腔体104设置在固定底座106上，所述的拍摄模块正对被测量者的面部设置。所述的指引灯模块位于拍摄模块的下方。实践中，为了降低拍摄模块因光线不足而造成拍摄画面噪点过多的问题，可在所述的测量腔体内设置补光灯。但补光灯的光线会影响被测量者的注视方向，并且补光灯的光线强度会造成被测量者眼部的不适。因此，优选的实施例中不设置补光灯，而通过图像处理手段去除拍摄画面的噪声。所述指引灯模块引导被测量者注视预设方向。针对测量眼裂宽度的需求，本发明的一个实施例中所述的指引灯模块可针对左眼或右眼分别提供照明，在指引灯模块开启后，被测量者可根据指令调整眼球以注视指引灯模块的发光点，从而形成眼球正视前方的拍摄姿态。使用时，控制系统可发出语音提示，并亮起指引灯模块，所述的语音提示引导被测量者看向指引灯。进一步的，拍摄模块获取待处理数据前包括参数标定步骤，所述的参数标定步骤用于获取待处理数据对应的单个像素与标定物实际尺寸之间的映射关系。实践中，由于不同的拍摄模块的参数性能不同将导致单个像素所代表的实际物体的尺寸存在差异，或者拍摄模块相对于人眼的位置存在差异时，拍摄画面反映的物体的尺寸也不同。由于人眼的眼裂宽度数值较小，因此拍摄过程产生的误差将放大测量结果误差。如何消除拍摄过程的误差显得尤为重要。因此，在拍摄画面前，对拍摄模块进行标定以获得当前拍摄角度下拍摄的画面中每个像素所代表的实际尺寸显得尤为重要。本发明的一个实施例中采用几何相似法实现标定标定目的。该方法将被测物体平面与拍摄模块的光轴垂直设置，且被测物体和拍摄模块的成像面平行。优选的，所述的被测物体为一个已知尺寸的标定板。标定板安放完毕后，利用拍摄模块采集标定板画面，进而可以获得标定板像素个数N和实际尺寸D，最终换算出两者之间的比例系数K，比例系数K也被称之为标定系数。计算公式如下：To this end, an embodiment of the present invention provides a new measuring device, as shown in FIGS. 1 and 2 . It includes a measurement unit configured to accommodate and position the head of a person being measured. Since human eyes are more sensitive to light, changes in light outside the measuring device will affect the gaze direction of the person being measured, thereby affecting the measurement result. For this reason, the measuring unit in this embodiment has a cavity structure, which is not only used for installing the measuring element, but also used for accommodating and positioning the head of the person being measured. That is, the head part of the subject is located in the cavity, which basically closes the opening end of the cavity, thereby reducing or eliminating the ambient light entering the measurement cavity; effectively avoiding the impact of ambient light on the measurer's attention , improving the measurement accuracy and efficiency. Further, the measuring device includes a
实际使用中，为了方便操作者标定参数，可将标定板集成在所述的测量腔体内，并避开被测量者的面部。In actual use, in order to facilitate the operator to calibrate the parameters, the calibration plate can be integrated in the measurement cavity and avoid the face of the person being measured.
在完成标定后，即可通过控制单元控制拍摄模块拍摄被测量者面部以获得待处理数据。示例性的，所述的待处理数据可为拍摄模块采集的图像数据。进一步的，控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值。After the calibration is completed, the control unit can control the photographing module to photograph the face of the subject to obtain the data to be processed. Exemplarily, the data to be processed may be image data collected by the camera module. Further, the control unit divides the data to be processed to obtain the pupil center coordinates and the upper eyelid contour coordinates; and compares the pupil center coordinates with the upper eyelid contour coordinates to obtain the eye fissure width measurement value.
可选的，所述的测量腔体内还设置有额托模块101和/或颌托模块102，基于拍摄模块获取的头部位置信息，所述的控制单元控制额托模块运动而调节头部的前后位置；和/或，所述的控制单元控制颌托模块运动而调节头部的上下位置。一个实施例中，当被测者的头部放入测量腔体后，测量者可调整被测量的头部姿态以获得所需的拍摄角度。而通过拍摄模块实时采集被测量者的面部画面，并将画面传输至测量者的显示装置，测量者能够精准把握被测量者的头部姿态，当姿态不满足拍摄需求时，其可向控制单元发送指令以调整测量腔体内的额托模块和/或颌托模块。一个实施例中，所述的额托与水平移动平台连接，所述的控制单元与水平移动平台电连接以调节额托的前后位置；所述的颌托与竖直移动平台连接，所述的控制单元与竖直移动平台电连接以调节颌托的上下位置。通过对颌托和额托分别设置独立的移动平台能够控制被测者的头部位置，所述的移动平台与控制单元电连接，从而可在控制单元的指令控制下实时移动。Optionally, a
可选的，所述的控制单元分割所述的待处理数据之前还包括：分析所述待处理数据并定位眼部区域，再将定位出的眼部区域对应的数据作为待处理数据。由于拍摄模块通常用于采集被测量者的面部，而无法仅拍摄被测量者的眼部，或者，当需要同时测量被测量者的左眼和右眼时，通过拍摄模块拍摄被测量者的面部能够显著降低数据的采集量，提高采集效率。但面部数据会导致后续的数据处理量增加而导致测量效率降低。为此，一个实施例中对采集到的数据进行眼部区域定位，定位出被测量者的脸部图像中的眼部区域，并将眼部区域作为后续流程的分析基础，能够有效减少数据处理量和处理的时间，提高眼裂宽度的测量分析速度。一个实施例中，采用人脸图像识别方法识别出脸部特征(如眼睛，鼻子等)。Optionally, before dividing the data to be processed, the control unit further includes: analyzing the data to be processed and locating the eye area, and then using the data corresponding to the located eye area as the data to be processed. Since the shooting module is usually used to capture the face of the person being measured, it is impossible to only shoot the eyes of the person being measured, or, when the left and right eyes of the person being measured need to be measured at the same time, the face of the person being measured can be shot through the shooting module It can significantly reduce the amount of data collection and improve the collection efficiency. However, facial data will lead to an increase in subsequent data processing, resulting in a decrease in measurement efficiency. To this end, in one embodiment, the collected data is used to locate the eye region, locate the eye region in the face image of the person being measured, and use the eye region as the analysis basis for the subsequent process, which can effectively reduce data processing. The measurement and analysis speed of the eye fissure width is improved. In one embodiment, facial features (such as eyes, nose, etc.) are recognized using a face image recognition method.
可选的，若定位出的眼部区域对应的数据的噪声超过设定阈值时，则对待处理数据进行高斯滤波，并将滤波后的数据作为待处理数据。如前文所述，当不设置补光灯时，可发现定位出的眼部区域因图像采集过程中由于拍摄视场不够明亮、或亮度不够均匀等而产生高斯噪声。因此，为了提高数据的准确性，提高测量精度，本发明的一个实施例中对定位出的眼部区域数据进行高斯滤波，去除图像噪声。Optionally, if the noise of the data corresponding to the located eye region exceeds a set threshold, Gaussian filtering is performed on the data to be processed, and the filtered data is used as the data to be processed. As mentioned above, when the supplementary light is not set, it can be found that the positioned eye area produces Gaussian noise due to the insufficient brightness of the shooting field of view or insufficient uniform brightness during the image acquisition process. Therefore, in order to improve data accuracy and measurement accuracy, in one embodiment of the present invention, Gaussian filtering is performed on the located eye region data to remove image noise.
可选的，所述的控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标包括：分割所述的待处理数据以将眼部区域、瞳孔与背景分离，并对瞳孔轮廓进行圆形拟合，将所述圆形对应的圆心坐标作为瞳孔中心坐标；以及对眼部区域进行边缘检测并通过图像的梯度变换获得上眼睑轮廓坐标。为了从拍摄模块采集的数据中准确获得瞳孔中心坐标，以及眼睑的轮廓坐标，本发明的一个实施例中，对高斯滤波后的眼部区域的图像进行图像分割，将眼部区域以及瞳孔与背景进行分离处理，以将眼部区域在图像中单独显示出来，其他背景用白色进行掩盖，提取出整个眼部区域轮廓以及瞳孔的轮廓。进一步的，对分割后的图像进行霍夫圆变换，将图像中瞳孔拟合成一个圆，并且识别出圆心坐标，所述的圆心坐标即为瞳孔中心坐标。此外，为了获得眼睑的轮廓，一个实施例中再次对分割的图像进行边缘检测，通过图像的梯度变换，提取出人眼上眼睑的轮廓，并且将轮廓中包含的坐标点信息保存在寄存器中。Optionally, the control unit segmenting the data to be processed to obtain the pupil center coordinates and the upper eyelid contour coordinates includes: segmenting the data to be processed to separate the eye region, the pupil from the background, and the pupil contour Carry out circle fitting, and use the center coordinates of the circle as the pupil center coordinates; and perform edge detection on the eye area and obtain the upper eyelid contour coordinates through image gradient transformation. In order to accurately obtain the coordinates of the pupil center and the contour coordinates of the eyelids from the data collected by the camera module, in one embodiment of the present invention, the image of the eye region after Gaussian filtering is segmented, and the eye region and the pupil are separated from the background Separation processing is performed to display the eye area separately in the image, and other backgrounds are covered with white to extract the outline of the entire eye area and the outline of the pupil. Further, the Hough circle transformation is performed on the segmented image, the pupil in the image is fitted into a circle, and the coordinates of the center of the circle are identified, and the coordinates of the center of the circle are the coordinates of the center of the pupil. In addition, in order to obtain the contour of the eyelid, an embodiment performs edge detection on the segmented image again, extracts the contour of the upper eyelid of the human eye through gradient transformation of the image, and saves the coordinate point information contained in the contour in the register.
可选的，所述的比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值包括：以瞳孔中心A的横坐标XA为基准，在所述的上眼睑轮廓坐标中求得与所述横坐标XA相等的点B对应的纵坐标XB，并按下式计算眼裂宽度D：Optionally, the comparison of the coordinates of the center of the pupil and the coordinates of the upper eyelid contour to obtain the measured value of the width of the eye fissure includes: taking the abscissa X A of the pupil center A as a reference, and obtaining the same value in the coordinates of the upper eyelid contour The ordinate X B corresponding to the point B where the abscissa X A is equal, and the eye cleft width D is calculated according to the following formula:
D＝|(YA-YB)*K|D＝|(Y A -Y B )*K|
其中，YA和YB分别为瞳孔中心的纵坐标和B点的纵坐标；K为所述的映射关系。Wherein, Y A and Y B are the vertical coordinates of the center of the pupil and the vertical coordinates of point B respectively; K is the mapping relationship described above.
如图4所示，通过前文描述的处理步骤可以获得瞳孔的圆形轮廓曲线402以及其圆心坐标(即瞳孔的中心坐标)；进一步可获得眼睑的轮廓曲线401。实践中，眼裂宽度定义为瞳孔中心A距离上眼睑上对应点B的距离，所述的B点的横坐标与A点的横坐标相等。因此，计算眼裂宽度D时，仅需要计算A点与B点之间的纵坐标差值。As shown in FIG. 4 , the
可选的，存储所述的眼裂宽度数据，并追踪被测量者的眼裂宽度数据变化趋势。实践中，被测量者常会去不同的城市，或者同一城市不同的机构采集眼裂宽度数据，因此为了避免数据的丢失，或者减少被测量者保存数据的负担，本发明的一个实施例中所述的测量装置具有数据存储功能，其存储眼裂宽度数据，并可进一步将所述数据存放至服务器或者云端。所述的数据与被测量者的身份识别码关联，因此被测量者仅需要提供所述的识别码，即可查询出自己的历史测量数据。所述的识别码可为被测量者的身份证号码、社保编号或者手机号等。为此，所述的测量装置的底座上设置有卡槽；和/或多种类型的通信接口。所述的卡槽包括但不限于用于插入社会保障卡、身份证等。所述的卡槽与底座内的读卡模组电连接。相应的，通信接口包括但不限于网络接入口、USB接口等。可以理解的是，也可在设备底座上集成其它类型的I/O接口，所述的I/O接口可以用于连接包括键盘、鼠标等的输入部分；包括诸如阴极射线管(CRT)、液晶显示器(LCD)等以及扬声器等的输出部分；包括硬盘等的存储部分；以及包括诸如LAN卡、调制解调器等的网络接口卡的通信部分。通信部分经由诸如因特网的网络执行通信处理。驱动器也根据需要连接至I/O接口。可拆卸介质，诸如磁盘、光盘、磁光盘、半导体存储器等等，根据需要安装在驱动器上，以便于从其上读出的计算机程序根据需要被安装入存储部分。Optionally, store the eye fissure width data, and track the change trend of the measured person's eye fissure width data. In practice, the subject often goes to different cities, or different institutions in the same city to collect eye fissure width data, so in order to avoid data loss, or reduce the burden on the subject to save data, an embodiment of the present invention describes The measurement device has a data storage function, which stores the eye fissure width data, and can further store the data to a server or cloud. The data is associated with the identity code of the person being measured, so the person being measured can query his own historical measurement data only by providing the identification code. The identification code can be the ID number, social security number or mobile phone number of the person being measured. To this end, the base of the measuring device is provided with card slots; and/or various types of communication interfaces. The card slot includes but is not limited to inserting a social security card, an ID card, and the like. The card slot is electrically connected with the card reading module in the base. Correspondingly, the communication interface includes but is not limited to a network access port, a USB interface, and the like. It can be understood that other types of I/O interfaces can also be integrated on the device base, and the I/O interfaces can be used to connect input parts including keyboards, mice, etc.; An output section of a display (LCD) and the like and a speaker and the like; a storage section including a hard disk and the like; and a communication section including a network interface card such as a LAN card, a modem, and the like. The communication section performs communication processing via a network such as the Internet. Drives are also connected to the I/O interface as required. A removable medium, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is mounted on the drive as necessary so that a computer program read therefrom is installed into the storage section as necessary.
本发明实施例的第二方面提供一种眼裂宽度测量装置的使用方法。需要说明的是，该实施中提到的相同的结构或部件与第一方面的含义相同，且功能相同，此处不再进行具体细节分析。进一步的，该方法中的所述的测量装置包括：测量单元，配置为容纳并定位被测量者的头部；控制单元，配置为控制所述的测量单元的工作状态。所述方法包括：拍摄模块参数标定，所述的参数标定用于获取待处理数据对应的单个像素与标定物实际尺寸之间的映射关系；调整部分地置于测量腔体内的被测量者的头部位置，以使被测量者的面部正对拍摄模块；引导被测者看向点亮的指引灯模块后，控制单元控制拍摄模块拍摄被测量者面部以获得待处理数据；控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值。The second aspect of the embodiments of the present invention provides a method for using the device for measuring the width of an eye fissure. It should be noted that the same structure or component mentioned in this implementation has the same meaning and function as the first aspect, and no specific detailed analysis will be made here. Further, the measuring device in this method includes: a measuring unit configured to accommodate and position the head of the person being measured; a control unit configured to control the working state of the measuring unit. The method includes: parameter calibration of the shooting module, and the parameter calibration is used to obtain the mapping relationship between a single pixel corresponding to the data to be processed and the actual size of the calibration object; position, so that the face of the person being measured is facing the shooting module; after guiding the person to be measured to look at the lighted guide light module, the control unit controls the shooting module to shoot the face of the person being measured to obtain data to be processed; the control unit divides the To obtain the pupil center coordinates and upper eyelid contour coordinates; and compare the pupil center coordinates and upper eyelid contour coordinates to obtain the eye cleft width measurement value.
可选的，所述方法中，所述的控制单元分割所述的待处理数据之前还包括：分析所述待处理数据并定位眼部区域，再将定位出的眼部区域对应的数据作为待处理数据；若定位出的眼部区域对应的数据的噪声超过设定阈值时，则对待处理数据进行高斯滤波，并将滤波后的数据作为待处理数据。Optionally, in the method, before the control unit divides the data to be processed, it further includes: analyzing the data to be processed and locating the eye area, and then using the data corresponding to the located eye area as the data to be processed. Process the data; if the noise of the data corresponding to the located eye region exceeds the set threshold, Gaussian filtering is performed on the data to be processed, and the filtered data is used as the data to be processed.
可选的，所述方法中，控制单元分割所述的待处理数据以获得瞳孔中心坐标和上眼睑轮廓坐标；并比对瞳孔中心坐标和上眼睑轮廓坐标而获得眼裂宽度测量值包括：Optionally, in the method, the control unit divides the data to be processed to obtain the pupil center coordinates and the upper eyelid contour coordinates; and comparing the pupil center coordinates and the upper eyelid contour coordinates to obtain the eye fissure width measurement includes:
分割所述的待处理数据以将眼部区域、瞳孔与背景分离，并对瞳孔轮廓进行圆形拟合，将所述圆形对应的圆心坐标作为瞳孔中心坐标；以及对眼部区域进行边缘检测并通过图像的梯度变换获得上眼睑轮廓坐标；Segmenting the data to be processed to separate the eye region, the pupil from the background, and performing circular fitting on the pupil contour, using the center coordinates corresponding to the circle as the pupil center coordinates; and performing edge detection on the eye region And obtain the upper eyelid contour coordinates through the gradient transformation of the image;
以瞳孔中心A的横坐标XA为基准，在所述的上眼睑轮廓坐标中求得与所述横坐标XA相等的点B对应的纵坐标XB，并按下式计算眼裂宽度D：Taking the abscissa XA of the pupil center A as a reference, obtain the ordinate XB corresponding to the point B equal to the abscissa XA in the upper eyelid contour coordinates, and calculate the eye cleft width D according to the following formula:
D＝|(YA-YB)*K|D＝|(Y A -Y B )*K|
其中，YA和YB分别为瞳孔中心的纵坐标和B点的纵坐标；K为所述的映射关系。Wherein, YA and YB are the vertical coordinates of the center of the pupil and the vertical coordinates of point B respectively; K is the mapping relationship described above.
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。The above specific implementation methods do not constitute a limitation to the protection scope of the present invention. Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
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Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0380260A2 (en) * | 1989-01-23 | 1990-08-01 | Kowa Company Ltd. | Ophthalmic measurement apparatus |
| US20110077548A1 (en) * | 2004-04-01 | 2011-03-31 | Torch William C | Biosensors, communicators, and controllers monitoring eye movement and methods for using them |
| WO2013002332A1 (en) * | 2011-06-29 | 2013-01-03 | 株式会社ニデック | Eye axis length measurement device |
| US20130321769A1 (en) * | 2012-06-01 | 2013-12-05 | Canon Kabushiki Kaisha | Measurement apparatus, ophthalmologic imaging apparatus, control method, and storage medium |
| CN104661579A (en) * | 2012-07-25 | 2015-05-27 | 达瓦洛尔战略咨询和技术有限公司 | Apparatus for measuring the topography and thickness of the cornea and measuring method used |
| CN105433899A (en) * | 2015-11-30 | 2016-03-30 | 中国科学院苏州生物医学工程技术研究所 | Pupil detection device |
| CN109091104A (en) * | 2018-09-18 | 2018-12-28 | 宁波法里奥光学科技发展有限公司 | A kind of full-automatic integral formula optometry unit equipment and its optometry method |
| CN110251075A (en) * | 2019-07-29 | 2019-09-20 | 华中科技大学同济医学院附属同济医院 | A portable pupil diameter measuring instrument capable of stretching eyelids and its measuring method |
| CN110522407A (en) * | 2019-09-12 | 2019-12-03 | 肖逸青 | An objective dark adaptation function detection device and method |
| CN210612103U (en) * | 2019-06-18 | 2020-05-26 | 四川中科形美医院投资有限公司 | Eye data measuring and recording device |
| CN112384127A (en) * | 2018-07-27 | 2021-02-19 | 高雄医学大学 | Eyelid droop detection method and system |
| CN112568992A (en) * | 2020-12-04 | 2021-03-30 | 上海交通大学医学院附属第九人民医院 | Eyelid parameter measuring method, device, equipment and medium based on 3D scanning |
| CN112754427A (en) * | 2019-10-21 | 2021-05-07 | 西安市第四医院 | Head fixing part for fundus photography examination |
| CN112837805A (en) * | 2021-01-12 | 2021-05-25 | 浙江大学 | Extraction method of eyelid topological morphological features based on deep learning |
| CN113065398A (en) * | 2021-03-04 | 2021-07-02 | 武汉大学 | Method and system for monitoring nystagmus |
| CN113229776A (en) * | 2021-05-13 | 2021-08-10 | 重庆工程职业技术学院 | Binocular vision function tester |
| CN113342161A (en) * | 2021-05-27 | 2021-09-03 | 常州工学院 | Sight tracking method based on near-to-eye camera |
| CN113349732A (en) * | 2021-04-14 | 2021-09-07 | 朱波 | Strabismus identification system based on binocular detection |
| CN113907699A (en) * | 2021-11-12 | 2022-01-11 | 长沙安视康医疗科技有限公司 | A vision measuring device and control method thereof |
| CN215502937U (en) * | 2021-01-29 | 2022-01-14 | 上海市内分泌代谢病研究所 | Rotatable auxiliary bracket and ophthalmologic examination apparatus |
| CN114898341A (en) * | 2022-07-14 | 2022-08-12 | 苏州魔视智能科技有限公司 | Fatigue driving early warning method and device, electronic equipment and storage medium |
-
2022
- 2022-08-18 CN CN202210989500.7A patent/CN115281601B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0380260A2 (en) * | 1989-01-23 | 1990-08-01 | Kowa Company Ltd. | Ophthalmic measurement apparatus |
| US20110077548A1 (en) * | 2004-04-01 | 2011-03-31 | Torch William C | Biosensors, communicators, and controllers monitoring eye movement and methods for using them |
| WO2013002332A1 (en) * | 2011-06-29 | 2013-01-03 | 株式会社ニデック | Eye axis length measurement device |
| US20130321769A1 (en) * | 2012-06-01 | 2013-12-05 | Canon Kabushiki Kaisha | Measurement apparatus, ophthalmologic imaging apparatus, control method, and storage medium |
| CN104661579A (en) * | 2012-07-25 | 2015-05-27 | 达瓦洛尔战略咨询和技术有限公司 | Apparatus for measuring the topography and thickness of the cornea and measuring method used |
| CN105433899A (en) * | 2015-11-30 | 2016-03-30 | 中国科学院苏州生物医学工程技术研究所 | Pupil detection device |
| CN112384127A (en) * | 2018-07-27 | 2021-02-19 | 高雄医学大学 | Eyelid droop detection method and system |
| CN109091104A (en) * | 2018-09-18 | 2018-12-28 | 宁波法里奥光学科技发展有限公司 | A kind of full-automatic integral formula optometry unit equipment and its optometry method |
| CN210612103U (en) * | 2019-06-18 | 2020-05-26 | 四川中科形美医院投资有限公司 | Eye data measuring and recording device |
| CN110251075A (en) * | 2019-07-29 | 2019-09-20 | 华中科技大学同济医学院附属同济医院 | A portable pupil diameter measuring instrument capable of stretching eyelids and its measuring method |
| CN110522407A (en) * | 2019-09-12 | 2019-12-03 | 肖逸青 | An objective dark adaptation function detection device and method |
| CN112754427A (en) * | 2019-10-21 | 2021-05-07 | 西安市第四医院 | Head fixing part for fundus photography examination |
| CN112568992A (en) * | 2020-12-04 | 2021-03-30 | 上海交通大学医学院附属第九人民医院 | Eyelid parameter measuring method, device, equipment and medium based on 3D scanning |
| CN112837805A (en) * | 2021-01-12 | 2021-05-25 | 浙江大学 | Extraction method of eyelid topological morphological features based on deep learning |
| CN215502937U (en) * | 2021-01-29 | 2022-01-14 | 上海市内分泌代谢病研究所 | Rotatable auxiliary bracket and ophthalmologic examination apparatus |
| CN113065398A (en) * | 2021-03-04 | 2021-07-02 | 武汉大学 | Method and system for monitoring nystagmus |
| CN113349732A (en) * | 2021-04-14 | 2021-09-07 | 朱波 | Strabismus identification system based on binocular detection |
| CN113229776A (en) * | 2021-05-13 | 2021-08-10 | 重庆工程职业技术学院 | Binocular vision function tester |
| CN113342161A (en) * | 2021-05-27 | 2021-09-03 | 常州工学院 | Sight tracking method based on near-to-eye camera |
| CN113907699A (en) * | 2021-11-12 | 2022-01-11 | 长沙安视康医疗科技有限公司 | A vision measuring device and control method thereof |
| CN114898341A (en) * | 2022-07-14 | 2022-08-12 | 苏州魔视智能科技有限公司 | Fatigue driving early warning method and device, electronic equipment and storage medium |
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|---|---|
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