WO2022262133A1 - Method and device for detecting position of stain on transparent medium - Google Patents
Method and device for detecting position of stain on transparent medium Download PDFInfo
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- WO2022262133A1 WO2022262133A1 PCT/CN2021/118453 CN2021118453W WO2022262133A1 WO 2022262133 A1 WO2022262133 A1 WO 2022262133A1 CN 2021118453 W CN2021118453 W CN 2021118453W WO 2022262133 A1 WO2022262133 A1 WO 2022262133A1
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 30
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- 238000004140 cleaning Methods 0.000 description 4
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Definitions
- the invention relates to the technical field of stain detection, and relates to a stain position detection method and device for a transparent medium.
- the cleaning of transparent media is mainly done manually. Since the stains on the curtain wall glass cannot be obtained, it generally needs to be cleaned in all directions, regardless of whether it is dirty or not, resulting in labor waste and Increased labor intensity; since cleaning is mostly carried out in sunny weather, affected by reflected light and the cleaning staff cannot maintain their concentration all the time, there are stains on the glass that are difficult to observe with the naked eye or cannot be confirmed on the inside and outside of the glass, resulting in incomplete cleaning phenomenon occurs.
- the technical problem to be solved by the present invention is to provide a method and device for detecting the position of a stain on a transparent medium that greatly reduces the difficulty of determining the position of the stain on the inside and outside of the transparent medium, saves labor costs, and has high detection efficiency.
- a method and device for detecting the position of a stain on a transparent medium comprising:
- the incident angle of the light source and the surface of the transparent medium to be detected form an included angle of 30°-60°.
- the light source is used to strobe and shoot each transparent medium to be detected from multiple angles to obtain multiple captured images, including:
- Multiple light sources with different set angles are used to irradiate the transparent medium to be detected, and the camera set on the same side as the light source is used to capture images of stains illuminated at different angles.
- Multiple light sources with different set angles are irradiated at different positions on the transparent medium to be detected, and the camera shoots images of the transparent medium at different positions on the same transparent medium to be detected at the same angle as the light source each time.
- the images of the transparent medium obtained by shooting at different positions are spliced to obtain the shooting image.
- a stain contour map is obtained by comparing multiple captured images, including:
- the light source is a visible light source
- the visible light emitted by the visible light source is polarized to obtain polarized light
- the polarized light irradiates the surface of the transparent medium to be detected at an angle of 30°-60°.
- the inclination angle ⁇ between the camera and the transparent medium to be detected is 20°-40°
- the angle ⁇ formed between the incident angle of the light source and the transparent medium to be detected is 30°-40°
- the angle ⁇ between light sources at different angles at this time is 30°-40°;
- the inclination angle ⁇ between the camera and the transparent medium to be detected is 60°-80°
- the angle ⁇ formed between the incident angle of the light source and the surface of the transparent medium to be detected is 50°-60°
- the angle ⁇ between light sources at different angles at this time is 50°-60°.
- the present invention also includes a stain position detection device on a transparent medium, including: a first acquisition module, used to obtain the overall profile of the transparent medium; a second acquisition module, used to use a light source outside the transparent medium to detect each transparent
- the medium is stroboscopically flashed and photographed to obtain multiple photographed images;
- the comparison module is used to compare the photographed multiple photographed images to obtain a stain contour map;
- the processing module is used to confirm that the stain is in the The position information on the transparent medium to be detected.
- the light source is an invisible light source
- the second acquisition module is a monochrome or color camera sensitive to the invisible light source.
- the present invention uses a light source on the outside of the transparent medium to strobe and shoot each transparent medium to be detected at multiple angles to obtain a plurality of photographed images, and highlights the stain forms on different photographed images, so as to obtain the position information of the stain, greatly It reduces the difficulty of determining whether stains are located on the inside and outside of the transparent medium, improves the detection accuracy, reduces the detection cost, and saves labor costs. Compared with the existing manual visual method, the detection efficiency and speed of the present invention are high.
- Fig. 1 is a schematic diagram of a method and device for detecting the position of a stain on a transparent medium according to the present invention.
- Fig. 2 is a schematic diagram of the detection of the present invention.
- a method for detecting the position of a stain on a transparent medium includes:
- the light source includes at least one invisible light source operative to emit invisible light outside the visible region of the electromagnetic spectrum.
- the invisible light is an infrared light source or an ultraviolet light source.
- the invisible light is an infrared light source with a wavelength range of 850nm-900nm.
- the transparent medium of the curtain wall generally has a coating that blocks ultraviolet rays, the present invention preferably uses an infrared light source , when the transparent medium of the curtain wall is an ordinary transparent medium, any one of the infrared light source or the ultraviolet light source can be used.
- the infrared light source can highlight the stain defects on the surface of the transparent medium of the curtain wall, realize the rapid detection of the surface of the transparent medium of the curtain wall, and reduce the amount of calculation.
- the incident angle of the light source and the surface of the transparent medium to be detected form an included angle of 30°-60°.
- Multiple light sources with different set angles are used to irradiate the transparent medium to be detected, and the camera set on the same side as the light source is used to capture images of stains illuminated at different angles.
- Multiple light sources with different set angles are irradiated at different positions on the transparent medium to be detected, and the camera shoots images of the transparent medium at different positions on the same transparent medium to be detected at the same angle as the light source each time.
- the images of the transparent medium obtained by shooting at different positions are spliced to obtain the shooting image.
- the present invention can be aimed at large transparent medium products, and in the case that the camera needs to take pictures for many times, the transparent medium images obtained by shooting at multiple different positions are spliced to obtain the captured image, which can further improve the imaging quality of the image and avoid omissions
- the transparent medium detection part improves the detection accuracy.
- the inclination angle ⁇ between the camera and the transparent medium to be detected is 20°-40°
- the angle ⁇ formed between the incident angle of the light source and the transparent medium to be detected is 30°-40°
- the angle ⁇ between light sources at different angles at this time is 30°-40°;
- the inclination angle ⁇ between the camera and the transparent medium to be detected is 40°-60°, and the angle ⁇ formed between the incident angle of the light source and the transparent medium to be detected is 40°-50°, Then the angle ⁇ between light sources at different angles at this time is 40°-50°;
- the inclination angle ⁇ between the camera and the transparent medium to be detected is 60°-80°
- the angle ⁇ formed between the incident angle of the light source and the surface of the transparent medium to be detected is 50°-60°
- the angle ⁇ between light sources at different angles at this time is 50°-60°.
- the angle ⁇ between light sources at different angles is affected by the thickness of the transparent medium to be detected, the inclination angle ⁇ between the camera and the transparent medium to be detected, and the angle ⁇ formed between the incident angle of the light source and the surface of the transparent medium to be detected.
- the thicker the transparent medium the It will cause the area difference when the light source illuminates the stain to be smaller, and the captured image taken by the camera shows that the difference between the internal and external stain area is not obvious. It is necessary to increase the angle ⁇ between the light sources at different angles to increase the stain change in the captured image at different angles Obviously, the accuracy of stain position detection is improved.
- the present invention also includes a stain position detection device for transparent media
- the first acquisition module is used to obtain the building 3D model to obtain the overall profile of the transparent media of the curtain wall
- the second acquisition module is used to use a light source on the outside of the transparent media of the curtain wall Strobe and shoot each transparent medium to be detected from multiple angles to obtain multiple captured images
- the comparison module is used to compare the captured multiple captured images to obtain a stain contour map
- the processing module is used to capture images according to different The difference in the shape of the stain on the surface confirms the location information of the stain on the transparent medium to be detected.
- the light source is an invisible light source
- the second acquisition module is a monochrome or color camera sensitive to the invisible light source.
- the working principle of a transparent medium stain position detection device is to obtain the building 3D model through the first acquisition module to obtain the overall outline of the transparent medium of the curtain wall, especially the curved transparent medium of the transparent medium of the curtain wall, which can adopt the existing technology
- the total station in the system or import the architectural drawings into the bim model analyze the relative positional relationship between the light source and the camera and the transparent medium of each curtain wall in advance, reduce the correction time of the camera and light source, and ensure the accuracy of the detection, and then pass the second
- the acquisition module uses a light source on the outside of the transparent medium of the curtain wall to strobe each transparent medium to be detected from multiple angles, and shoots images of the light source at the same position at the same time and at different angles, and uses the comparison module to compare the multiple captured images obtained.
- the processing module confirms the position information of the stain on the transparent medium to be detected according to the difference in the shape of the stain on different captured images. That is, it is determined whether the stains on the surface of the transparent medium to be detected exist on the inner surface or the outer surface.
- the present invention provides a method and device that can more accurately detect the position of stains on the surface of transparent media.
- a light source is used on the outside of the transparent media of the curtain wall to strobe and shoot each transparent media to be detected from multiple angles to obtain multiple results.
- One captured image so that it can obtain multiple angle images of the stain on the transparent medium to be detected, and confirm the stain position according to the stain shape difference on different captured images, which greatly reduces the difficulty of stain position detection on the transparent medium and improves the surface of the transparent medium.
- the efficiency of stain detection reduces the cost of detection and saves labor costs.
- These computer program instructions can also be stored in a computer-readable memory capable of directing a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory generate instructions including instructions for the surface defect detection method of a transparent medium Manufactured products, the instruction method for detecting surface defects on transparent media implements the functions specified in one or more processes of the flow chart and/or one or more blocks of the block diagram.
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Abstract
A method and device for detecting the position of a stain (4, 5) on a transparent medium. A light source (2) is used on the outer side of the transparent medium (3) to perform strobing on and photograph each transparent medium (3) under detection from multiple angles to obtain a plurality of photographed images, and the forms of the stain (4, 5) on different photographed images are highlighted, so as to determine position information of the stain (4, 5). According to the device and method, the difficulty in determining whether the stain (4, 5) is located on the inner or outer side of the transparent medium (3) is greatly reduced, the detection precision is improved, the detection costs are lowered, the labor costs are lowered, and compared with existing manual visual modes, the detection efficiency is high, and the speed is high.
Description
本发明涉及污渍检测技术领域，涉及一种透明介质污渍位置检测方法及装置。The invention relates to the technical field of stain detection, and relates to a stain position detection method and device for a transparent medium.
目前对透明介质（玻璃、亚克力等）的清洁主要还是采用人工方式来完成的，由于无法获得幕墙玻璃上的污渍情况，一般需要进行全方位清洗，不管是否有脏都进行清洗，造成劳动力浪费和增强劳动强度；由于清洗多在晴朗天气进行，受到反射光且清洁人员精神无法一直保持集中的影响，使得玻璃上存在肉眼难以观察到的污渍或无法确认污渍位于其内外侧，而导致清洗不完全的现象发生。At present, the cleaning of transparent media (glass, acrylic, etc.) is mainly done manually. Since the stains on the curtain wall glass cannot be obtained, it generally needs to be cleaned in all directions, regardless of whether it is dirty or not, resulting in labor waste and Increased labor intensity; since cleaning is mostly carried out in sunny weather, affected by reflected light and the cleaning staff cannot maintain their concentration all the time, there are stains on the glass that are difficult to observe with the naked eye or cannot be confirmed on the inside and outside of the glass, resulting in incomplete cleaning phenomenon occurs.
本发明要解决的技术问题是提供一种大大降低了确定污渍位于透明介质内外侧的难度，节约了人工成本，检测效率高的透明介质污渍位置检测方法及装置。The technical problem to be solved by the present invention is to provide a method and device for detecting the position of a stain on a transparent medium that greatly reduces the difficulty of determining the position of the stain on the inside and outside of the transparent medium, saves labor costs, and has high detection efficiency.
为了解决上述技术问题，本发明解决其技术问题所采用的技术方案是：In order to solve the above technical problems, the technical solution adopted by the present invention to solve the technical problems is:
一种透明介质污渍位置检测方法及装置，包括：A method and device for detecting the position of a stain on a transparent medium, comprising:
在透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，将多个拍摄图像进行比较得到污渍轮廓图，根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。On the outside of the transparent medium, the light source is used to strobe each transparent medium to be detected from multiple angles and obtain multiple captured images, compare the multiple captured images to obtain the stain contour map, and confirm the stain according to the difference in the form of stains on different captured images The location information of the stain on the transparent medium to be detected.
进一步地，所述光源包括有至少一个不可见光光源，该至少一个不可见光光源被操作来发射电磁波频谱位于可见区域之外的不可见光。Further, the light source includes at least one invisible light source, and the at least one invisible light source is operated to emit invisible light whose electromagnetic spectrum is outside the visible region.
进一步地，所述光源的入射角度与待检测透明介质表面呈30°-60°夹角。Further, the incident angle of the light source and the surface of the transparent medium to be detected form an included angle of 30°-60°.
进一步地，采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，包括：Further, the light source is used to strobe and shoot each transparent medium to be detected from multiple angles to obtain multiple captured images, including:
采用多个不同设定角度的光源对待检测透明介质进行照射，通过与光源设置在剥离同一侧的相机捕获污渍在不同角度照射情况下的拍摄图像。Multiple light sources with different set angles are used to irradiate the transparent medium to be detected, and the camera set on the same side as the light source is used to capture images of stains illuminated at different angles.
进一步地，当拍摄图像需要由多张图像拼合时，包括：Further, when the captured image needs to be stitched together from multiple images, including:
通过多个不同设定角度的光源在待检测透明介质上不同位置进行照射，相机在同一个待检测透明介质上不同位置处每次以与光源所呈的相同角度拍摄透明介质图像，将多个不同位置的拍摄得到的透明介质图像进行拼接得到拍摄图像。Multiple light sources with different set angles are irradiated at different positions on the transparent medium to be detected, and the camera shoots images of the transparent medium at different positions on the same transparent medium to be detected at the same angle as the light source each time. The images of the transparent medium obtained by shooting at different positions are spliced to obtain the shooting image.
进一步地，将多个拍摄图像进行比较得到污渍轮廓图，包括：Further, a stain contour map is obtained by comparing multiple captured images, including:
将同时间同位置的不同拍摄图像上的污渍面积进行对比；当不同拍摄图像上出现污渍面积存在差异，则判断该污渍位于所述待检测透明介质的外表面；当不同拍摄图像上出现污渍面积未存在差异，则判断该污渍位于所述待检测透明介质的内表面。Compare the stain areas on different photographed images at the same time and at the same position; when there is a difference in the stain area on different photographed images, it is judged that the stain is located on the outer surface of the transparent medium to be detected; when the stain area appears on different photographed images If there is no difference, then it is judged that the stain is located on the inner surface of the transparent medium to be detected.
进一步地，所述光源为可见光光源，对可见光光源发出的可见光经过偏振处理得到偏振光，所述偏振光以30°-60°的角度照射所述待检测透明介质表面。Further, the light source is a visible light source, the visible light emitted by the visible light source is polarized to obtain polarized light, and the polarized light irradiates the surface of the transparent medium to be detected at an angle of 30°-60°.
进一步地，还包括：Further, it also includes:
当待检测透明介质的厚度为5mm-7mm，相机与待检测透明介质的倾斜角度α为20°-40°，光源的入射角度与待检测透明介质所成角度β为30°-40°时，则此时不同角度光源之间的夹角θ为30°-40°；When the thickness of the transparent medium to be detected is 5mm-7mm, the inclination angle α between the camera and the transparent medium to be detected is 20°-40°, and the angle β formed between the incident angle of the light source and the transparent medium to be detected is 30°-40°, Then the angle θ between light sources at different angles at this time is 30°-40°;
当待检测透明介质的厚度为7mm-9mm，相机与待检测透明介质的倾斜角度α为40°-60°，光源的入射角度与待检测透明介质所成角度β为40°-50°时，则此时不同角度光源之间的夹角θ为40°-50°；When the thickness of the transparent medium to be detected is 7mm-9mm, the inclination angle α between the camera and the transparent medium to be detected is 40°-60°, and the angle β formed between the incident angle of the light source and the transparent medium to be detected is 40°-50°, Then the angle θ between light sources at different angles at this time is 40°-50°;
当待检测透明介质的厚度为9mm-10mm，相机与待检测透明介质的倾斜角度α为60°-80°，光源的入射角度与待检测透明介质表面所成角度β为50°-60°时，则此时不同角度光源之间的夹角θ为50°-60°。When the thickness of the transparent medium to be detected is 9mm-10mm, the inclination angle α between the camera and the transparent medium to be detected is 60°-80°, and the angle β formed between the incident angle of the light source and the surface of the transparent medium to be detected is 50°-60° , then the angle θ between light sources at different angles at this time is 50°-60°.
本发明还包括一种透明介质污渍位置检测装置，包括：第一获取模块，用于获得透明介质整体轮廓；第二获取模块，用于在透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像；对比模块，用于将拍摄得到的多个拍摄图像进行比较得到污渍轮廓图；处理模块，用于根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。The present invention also includes a stain position detection device on a transparent medium, including: a first acquisition module, used to obtain the overall profile of the transparent medium; a second acquisition module, used to use a light source outside the transparent medium to detect each transparent The medium is stroboscopically flashed and photographed to obtain multiple photographed images; the comparison module is used to compare the photographed multiple photographed images to obtain a stain contour map; the processing module is used to confirm that the stain is in the The position information on the transparent medium to be detected.
进一步地，所述光源为不可见光光源，所述第二获取模块为对不可见光源敏感的单色或者彩色相机。Further, the light source is an invisible light source, and the second acquisition module is a monochrome or color camera sensitive to the invisible light source.
本发明的有益效果：Beneficial effects of the present invention:
本发明通过在透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，将不同拍摄图像上的污渍形态突出显示，以此来污渍的位置信息，大大降低了确定污渍位于透明介质内外侧的难度，提高检测精度，降低了检测成本，节约了人工成本，同现有人工目视的方式相比，采用本发明的检测效率高，速度快。The present invention uses a light source on the outside of the transparent medium to strobe and shoot each transparent medium to be detected at multiple angles to obtain a plurality of photographed images, and highlights the stain forms on different photographed images, so as to obtain the position information of the stain, greatly It reduces the difficulty of determining whether stains are located on the inside and outside of the transparent medium, improves the detection accuracy, reduces the detection cost, and saves labor costs. Compared with the existing manual visual method, the detection efficiency and speed of the present invention are high.
图1是本发明的一种透明介质污渍位置检测方法及装置示意图。Fig. 1 is a schematic diagram of a method and device for detecting the position of a stain on a transparent medium according to the present invention.
图2是本发明的检测示意图。Fig. 2 is a schematic diagram of the detection of the present invention.
图3是本发明的透明介质污渍位置检测装置示意图。Fig. 3 is a schematic diagram of a stain position detection device for a transparent medium according to the present invention.
图中标号说明：1、相机；2、光源；3、待检测透明介质；4、外侧污渍；5、内侧污渍。Explanation of symbols in the figure: 1. camera; 2. light source; 3. transparent medium to be detected; 4. outer stain; 5. inner stain.
下面结合附图和具体实施例对本发明作进一步说明，以使本领域的技术人员可以更好地理解本发明并能予以实施，但所举实施例不作为对本发明的限定。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
参照图1-2所示，一种透明介质污渍位置检测方法，包括：Referring to Figure 1-2, a method for detecting the position of a stain on a transparent medium includes:
获得建筑3D模型以得到幕墙透明介质整体轮廓，在幕墙透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，将多个拍摄图像进行比较得到污渍轮廓图，根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。Obtain the 3D model of the building to obtain the overall outline of the transparent medium of the curtain wall, use a light source on the outside of the transparent medium of the curtain wall to strobe each transparent medium to be detected from multiple angles and shoot to obtain multiple captured images, and compare the multiple captured images to obtain the outline of the stain Fig. 1. According to the difference of stain morphology on different captured images, the position information of the stain on the transparent medium to be detected is confirmed.
本发明通过在幕墙透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，将不同拍摄图像上的污渍形态突出显示，以此来污渍的位置信息，大大降低了确定污渍位于透明介质内外侧的难度，提高检测精度，降低了检测成本，节约了人工成本，同现有人工目视的方式相比，采用本发明的检测效率高，速度快。The present invention uses a light source on the outside of the transparent medium of the curtain wall to strobe and shoot each transparent medium to be detected at multiple angles to obtain multiple photographed images, and highlights the stains on different photographed images to obtain the location information of the stains. It greatly reduces the difficulty of determining whether stains are located on the inside and outside of the transparent medium, improves the detection accuracy, reduces the detection cost, and saves labor costs. Compared with the existing manual visual inspection method, the detection efficiency and speed of the present invention are high.
所述透明介质可以为PS (聚苯乙烯）、聚甲基丙烯酸甲酯（俗称有机玻璃）、甲丙烯酸甲酯（俗称亚克力）、PC （聚碳酸酯）、玻璃（二氧化硅为主要成分），本发明检测方法适用于是平面或者曲面且为透明的，在检查污渍的时候通过切换视角获得污渍位置情况。The transparent medium can be PS (polystyrene), polymethyl methacrylate (commonly known as plexiglass), methyl methacrylate (commonly known as acrylic), PC (polycarbonate), glass (silicon dioxide is the main component) , the detection method of the present invention is suitable for flat or curved surfaces and is transparent, and the position of the stain can be obtained by switching the viewing angle when inspecting the stain.
所述光源包括有至少一个不可见光光源，该至少一个不可见光光源被操作来发射电磁波频谱位于可见区域之外的不可见光。The light source includes at least one invisible light source operative to emit invisible light outside the visible region of the electromagnetic spectrum.
所述不可见光为红外光源或者紫外光源，较为优选的所述不可见光为红外光源，其波长范围为850nm-900nm，由于幕墙透明介质普遍存在镀膜隔绝紫外线的镀层，本发明较为优选的采用红外光源，当幕墙透明介质为普通透明介质时，采用红外光源或者紫外光源中的任意一个都可以。The invisible light is an infrared light source or an ultraviolet light source. Preferably, the invisible light is an infrared light source with a wavelength range of 850nm-900nm. Since the transparent medium of the curtain wall generally has a coating that blocks ultraviolet rays, the present invention preferably uses an infrared light source , when the transparent medium of the curtain wall is an ordinary transparent medium, any one of the infrared light source or the ultraviolet light source can be used.
红外光源可以突出幕墙透明介质表面的污渍缺陷，实现对幕墙透明介质表面的快速检测，减少运算量。The infrared light source can highlight the stain defects on the surface of the transparent medium of the curtain wall, realize the rapid detection of the surface of the transparent medium of the curtain wall, and reduce the amount of calculation.
所述光源的入射角度与待检测透明介质表面呈30°-60°夹角。The incident angle of the light source and the surface of the transparent medium to be detected form an included angle of 30°-60°.
采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，包括：The light source is used to strobe and shoot each transparent medium to be detected from multiple angles to obtain multiple captured images, including:
采用多个不同设定角度的光源对待检测透明介质进行照射，通过与光源设置在剥离同一侧的相机捕获污渍在不同角度照射情况下的拍摄图像。Multiple light sources with different set angles are used to irradiate the transparent medium to be detected, and the camera set on the same side as the light source is used to capture images of stains illuminated at different angles.
当拍摄图像需要由多张图像拼合时，包括：When the captured image needs to be stitched together from multiple images, including:
通过多个不同设定角度的光源在待检测透明介质上不同位置进行照射，相机在同一个待检测透明介质上不同位置处每次以与光源所呈的相同角度拍摄透明介质图像，将多个不同位置的拍摄得到的透明介质图像进行拼接得到拍摄图像。Multiple light sources with different set angles are irradiated at different positions on the transparent medium to be detected, and the camera shoots images of the transparent medium at different positions on the same transparent medium to be detected at the same angle as the light source each time. The images of the transparent medium obtained by shooting at different positions are spliced to obtain the shooting image.
本发明可针对较大透明介质产品，需要相机多次进行拍摄取像情况下，将多个不同位置的拍摄得到的透明介质图像进行拼接得到拍摄图像，可进一步提高了图像的成像质量，避免遗漏透明介质检测部分，提高检测精度。The present invention can be aimed at large transparent medium products, and in the case that the camera needs to take pictures for many times, the transparent medium images obtained by shooting at multiple different positions are spliced to obtain the captured image, which can further improve the imaging quality of the image and avoid omissions The transparent medium detection part improves the detection accuracy.
将多个拍摄图像进行比较得到污渍轮廓图，包括：Comparing multiple captured images to obtain stain contour maps, including:
将同时间同位置的不同拍摄图像上的污渍面积进行对比；当不同拍摄图像上出现污渍面积存在差异，则判断该污渍位于所述待检测透明介质的外表面；当不同拍摄图像上出现污渍面积未存在差异，则判断该污渍位于所述待检测透明介质的内表面。Compare the stain areas on different photographed images at the same time and at the same position; when there is a difference in the stain area on different photographed images, it is judged that the stain is located on the outer surface of the transparent medium to be detected; when the stain area appears on different photographed images If there is no difference, then it is judged that the stain is located on the inner surface of the transparent medium to be detected.
所述光源为可见光光源，对可见光光源发出的可见光经过偏振处理得到偏振光，所述偏振光以30°-60°的角度照射所述待检测透明介质表面。The light source is a visible light source, and the visible light emitted by the visible light source is polarized to obtain polarized light, and the polarized light irradiates the surface of the transparent medium to be detected at an angle of 30°-60°.
还包括：Also includes:
当待检测透明介质的厚度为5mm-7mm，相机与待检测透明介质的倾斜角度α为20°-40°，光源的入射角度与待检测透明介质所成角度β为30°-40°时，则此时不同角度光源之间的夹角θ为30°-40°；When the thickness of the transparent medium to be detected is 5mm-7mm, the inclination angle α between the camera and the transparent medium to be detected is 20°-40°, and the angle β formed between the incident angle of the light source and the transparent medium to be detected is 30°-40°, Then the angle θ between light sources at different angles at this time is 30°-40°;
当待检测透明介质的厚度为7mm-9mm，相机与待检测透明介质的倾斜角度α为40°-60°，光源的入射角度与待检测透明介质所成角度β为40°-50°时，则此时不同角度光源之间的夹角θ为40°-50°；When the thickness of the transparent medium to be detected is 7mm-9mm, the inclination angle α between the camera and the transparent medium to be detected is 40°-60°, and the angle β formed between the incident angle of the light source and the transparent medium to be detected is 40°-50°, Then the angle θ between light sources at different angles at this time is 40°-50°;
当待检测透明介质的厚度为9mm-10mm，相机与待检测透明介质的倾斜角度α为60°-80°，光源的入射角度与待检测透明介质表面所成角度β为50°-60°时，则此时不同角度光源之间的夹角θ为50°-60°。When the thickness of the transparent medium to be detected is 9mm-10mm, the inclination angle α between the camera and the transparent medium to be detected is 60°-80°, and the angle β formed between the incident angle of the light source and the surface of the transparent medium to be detected is 50°-60° , then the angle θ between light sources at different angles at this time is 50°-60°.
不同角度光源之间的夹角θ受待检测透明介质的厚度、相机与待检测透明介质的倾斜角度α以及光源的入射角度与待检测透明介质表面所成角度β影响，透明介质厚度越厚，则会导致影响光源照射污渍时的面积差异变小，相机所拍摄的拍摄图像显示内外污渍面积差异不明显，需要增加不同角度光源之间的夹角θ来增加不同角度的拍摄图像中的污渍变化明显，提高污渍位置检测的精度。The angle θ between light sources at different angles is affected by the thickness of the transparent medium to be detected, the inclination angle α between the camera and the transparent medium to be detected, and the angle β formed between the incident angle of the light source and the surface of the transparent medium to be detected. The thicker the transparent medium, the It will cause the area difference when the light source illuminates the stain to be smaller, and the captured image taken by the camera shows that the difference between the internal and external stain area is not obvious. It is necessary to increase the angle θ between the light sources at different angles to increase the stain change in the captured image at different angles Obviously, the accuracy of stain position detection is improved.
参阅图3，本发明还包括一种透明介质污渍位置检测装置，第一获取模块，用于获得建筑3D模型以得到幕墙透明介质整体轮廓；第二获取模块，用于在幕墙透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像；对比模块，用于将拍摄得到的多个拍摄图像进行比较得到污渍轮廓图；处理模块，用于根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。Referring to Fig. 3, the present invention also includes a stain position detection device for transparent media, the first acquisition module is used to obtain the building 3D model to obtain the overall profile of the transparent media of the curtain wall; the second acquisition module is used to use a light source on the outside of the transparent media of the curtain wall Strobe and shoot each transparent medium to be detected from multiple angles to obtain multiple captured images; the comparison module is used to compare the captured multiple captured images to obtain a stain contour map; the processing module is used to capture images according to different The difference in the shape of the stain on the surface confirms the location information of the stain on the transparent medium to be detected.
所述光源为不可见光光源，所述第二获取模块为对不可见光源敏感的单色或者彩色相机。The light source is an invisible light source, and the second acquisition module is a monochrome or color camera sensitive to the invisible light source.
本申请提供的一种透明介质污渍位置检测装置的工作原理，是先通过第一获取模块获得建筑3D模型以得到幕墙透明介质整体轮廓，尤其是幕墙透明介质的曲面透明介质，可采用现有技术中的全站仪或者将建筑图纸导入bim模型中获得，提前分析出光源以及相机与各个幕墙透明介质之间的相对位置关系，减少相机以及光源的矫正时间，保证检测准确性，然后通过第二获取模块在幕墙透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪，拍摄同位置同时间且不同角度光源的拍摄图像，采用对比模块将拍摄得到的多个拍摄图像进行比较得到污渍轮廓图，处理模块根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。即确定待检测透明介质表面的污渍是都存在于其内表面还是外表面。The working principle of a transparent medium stain position detection device provided by this application is to obtain the building 3D model through the first acquisition module to obtain the overall outline of the transparent medium of the curtain wall, especially the curved transparent medium of the transparent medium of the curtain wall, which can adopt the existing technology The total station in the system or import the architectural drawings into the bim model, analyze the relative positional relationship between the light source and the camera and the transparent medium of each curtain wall in advance, reduce the correction time of the camera and light source, and ensure the accuracy of the detection, and then pass the second The acquisition module uses a light source on the outside of the transparent medium of the curtain wall to strobe each transparent medium to be detected from multiple angles, and shoots images of the light source at the same position at the same time and at different angles, and uses the comparison module to compare the multiple captured images obtained. Stain contour map, the processing module confirms the position information of the stain on the transparent medium to be detected according to the difference in the shape of the stain on different captured images. That is, it is determined whether the stains on the surface of the transparent medium to be detected exist on the inner surface or the outer surface.
综上所述，本发明提供一种能够更加精确的检测出透明介质表面污渍位置的方法及装置，在幕墙透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，使其能够获得污渍在待检测透明介质上多个角度的图像，根据不同拍摄图像上的污渍形态差异确认污渍位置，大大降低了透明介质污渍位置检测的难度，提高了透明介质表面污渍检测效率，降低了检测成本，节约了人工成本。To sum up, the present invention provides a method and device that can more accurately detect the position of stains on the surface of transparent media. A light source is used on the outside of the transparent media of the curtain wall to strobe and shoot each transparent media to be detected from multiple angles to obtain multiple results. One captured image, so that it can obtain multiple angle images of the stain on the transparent medium to be detected, and confirm the stain position according to the stain shape difference on different captured images, which greatly reduces the difficulty of stain position detection on the transparent medium and improves the surface of the transparent medium. The efficiency of stain detection reduces the cost of detection and saves labor costs.
可以理解的是，上述提供的方法实施例与上述的透明介质污渍位置检测方法实施例对应，相应的具体内容可以相互参考，在此不再赘述。It can be understood that the above-mentioned embodiment of the method corresponds to the above-mentioned embodiment of the method for detecting the position of a stain on a transparent medium, and the corresponding specific content can be referred to each other, and will not be repeated here.
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) having computer-usable program code embodied therein.
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的透明介质表面缺陷检测方法。The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, or a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a The method for detecting defects on the surface of a transparent medium is used to realize the functions specified in one or more processes of the flow chart and/or one or more blocks of the block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令透明介质表面缺陷检测方法的制造品，该指令透明介质表面缺陷检测方法实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions can also be stored in a computer-readable memory capable of directing a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory generate instructions including instructions for the surface defect detection method of a transparent medium Manufactured products, the instruction method for detecting surface defects on transparent media implements the functions specified in one or more processes of the flow chart and/or one or more blocks of the block diagram.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.
以上所述实施例仅是为充分说明本发明而所举的较佳的实施例，本发明的保护范围不限于此。本技术领域的技术人员在本发明基础上所作的等同替代或变换，均在本发明的保护范围之内。本发明的保护范围以权利要求书为准。The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be determined by the claims.
Claims (10)
- 一种透明介质污渍位置检测方法，其特征在于，包括：A method for detecting the position of a stain on a transparent medium, comprising:在透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，将多个拍摄图像进行比较得到污渍轮廓图，根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。On the outside of the transparent medium, the light source is used to strobe each transparent medium to be detected from multiple angles and obtain multiple captured images, compare the multiple captured images to obtain the stain contour map, and confirm the stain according to the difference in the form of stains on different captured images The location information of the stain on the transparent medium to be detected.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，所述光源包括有至少一个不可见光光源，该至少一个不可见光光源被操作来发射电磁波频谱位于可见区域之外的不可见光。The method for detecting the position of a stain on a transparent medium according to claim 1, wherein the light source includes at least one invisible light source, and the at least one invisible light source is operated to emit invisible light whose electromagnetic spectrum is outside the visible region.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，所述光源的入射角度与待检测透明介质表面呈30°-60°夹角。The method for detecting the position of a stain on a transparent medium according to claim 1, wherein the incident angle of the light source and the surface of the transparent medium to be detected form an included angle of 30°-60°.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像，包括：The method for detecting the position of a stain on a transparent medium according to claim 1, wherein a light source is used to strobe and shoot each transparent medium to be detected from multiple angles to obtain a plurality of photographed images, including:采用多个不同设定角度的光源对待检测透明介质进行照射，通过与光源设置在剥离同一侧的相机捕获污渍在不同角度照射情况下的拍摄图像。Multiple light sources with different set angles are used to irradiate the transparent medium to be detected, and the camera set on the same side as the light source is used to capture images of stains illuminated at different angles.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，当拍摄图像需要由多张图像拼合时，包括：The method for detecting the position of a stain on a transparent medium according to claim 1, wherein when the captured image needs to be stitched together from multiple images, it includes:通过多个不同设定角度的光源在待检测透明介质上不同位置进行照射，相机在同一个待检测透明介质上不同位置处每次以与光源所呈的相同角度拍摄透明介质图像，将多个不同位置的拍摄得到的透明介质图像进行拼接得到拍摄图像。Multiple light sources with different set angles are irradiated at different positions on the transparent medium to be detected, and the camera shoots images of the transparent medium at different positions on the same transparent medium to be detected at the same angle as the light source each time. The images of the transparent medium obtained by shooting at different positions are spliced to obtain the shooting image.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，将多个拍摄图像进行比较得到污渍轮廓图，包括：The method for detecting the position of a stain on a transparent medium according to claim 1, wherein comparing a plurality of photographed images to obtain a stain contour map includes:将同时间同位置的不同拍摄图像上的污渍面积进行对比；当不同拍摄图像上出现污渍面积存在差异，则判断该污渍位于所述待检测透明介质的外表面；当不同拍摄图像上出现污渍面积未存在差异，则判断该污渍位于所述待检测透明介质的内表面。Compare the stain areas on different photographed images at the same time and at the same position; when there is a difference in the stain area on different photographed images, it is judged that the stain is located on the outer surface of the transparent medium to be detected; when the stain area appears on different photographed images If there is no difference, then it is judged that the stain is located on the inner surface of the transparent medium to be detected.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，所述光源为可见光光源，对可见光光源发出的可见光经过偏振处理得到偏振光，所述偏振光以30°-60°的角度照射所述待检测透明介质表面。The method for detecting the position of a stain on a transparent medium according to claim 1, wherein the light source is a visible light source, and the visible light emitted by the visible light source is polarized to obtain polarized light, and the polarized light is obtained at an angle of 30°-60° Irradiating the surface of the transparent medium to be detected.
- 如权利要求1所述的透明介质污渍位置检测方法，其特征在于，还包括：The method for detecting the position of a stain on a transparent medium according to claim 1, further comprising:当待检测透明介质的厚度为5mm-7mm，相机与待检测透明介质的倾斜角度α为20°-40°，光源的入射角度与待检测透明介质所成角度β为30°-40°时，则此时不同角度光源之间的夹角θ为30°-40°；When the thickness of the transparent medium to be detected is 5mm-7mm, the inclination angle α between the camera and the transparent medium to be detected is 20°-40°, and the angle β formed between the incident angle of the light source and the transparent medium to be detected is 30°-40°, Then the angle θ between light sources at different angles at this time is 30°-40°;当待检测透明介质的厚度为7mm-9mm，相机与待检测透明介质的倾斜角度α为40°-60°，光源的入射角度与待检测透明介质所成角度β为40°-50°时，则此时不同角度光源之间的夹角θ为40°-50°；When the thickness of the transparent medium to be detected is 7mm-9mm, the inclination angle α between the camera and the transparent medium to be detected is 40°-60°, and the angle β formed between the incident angle of the light source and the transparent medium to be detected is 40°-50°, Then the angle θ between light sources at different angles at this time is 40°-50°;当待检测透明介质的厚度为9mm-10mm，相机与待检测透明介质的倾斜角度α为60°-80°，光源的入射角度与待检测透明介质表面所成角度β为50°-60°时，则此时不同角度光源之间的夹角θ为50°-60°。When the thickness of the transparent medium to be detected is 9mm-10mm, the inclination angle α between the camera and the transparent medium to be detected is 60°-80°, and the angle β formed between the incident angle of the light source and the surface of the transparent medium to be detected is 50°-60° , then the angle θ between light sources at different angles at this time is 50°-60°.
- 一种透明介质污渍位置检测装置，其特征在于，包括：第一获取模块，用于获得透明介质整体轮廓；第二获取模块，用于在透明介质外侧采用光源以多角度对每个待检测透明介质进行频闪并拍摄获得多个拍摄图像；对比模块，用于将拍摄得到的多个拍摄图像进行比较得到污渍轮廓图；处理模块，用于根据不同拍摄图像上的污渍形态差异确认该污渍在待检测透明介质上的位置信息。A stain position detection device for a transparent medium, characterized in that it includes: a first acquisition module, used to obtain the overall profile of the transparent medium; a second acquisition module, used to use a light source on the outside of the transparent medium to detect each transparent The medium is stroboscopically flashed and photographed to obtain multiple photographed images; the comparison module is used to compare the photographed multiple photographed images to obtain a stain contour map; the processing module is used to confirm that the stain is in the The position information on the transparent medium to be detected.
- 如权利要求9所述的透明介质污渍位置检测装置，其特征在于，所述光源为不可见光光源，所述第二获取模块为对不可见光源敏感的单色或者彩色相机。The stain position detection device for transparent media according to claim 9, wherein the light source is an invisible light source, and the second acquisition module is a monochrome or color camera sensitive to the invisible light source.
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