WO2019117472A1 - 아날로그 계기판의 측정값 인식 시스템 및 방법 - Google Patents
아날로그 계기판의 측정값 인식 시스템 및 방법 Download PDFInfo
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- WO2019117472A1 WO2019117472A1 PCT/KR2018/013550 KR2018013550W WO2019117472A1 WO 2019117472 A1 WO2019117472 A1 WO 2019117472A1 KR 2018013550 W KR2018013550 W KR 2018013550W WO 2019117472 A1 WO2019117472 A1 WO 2019117472A1
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- WIPO (PCT)
- Prior art keywords
- interest
- region
- image
- instrument panel
- analog instrument
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/24—Aligning, centring, orientation detection or correction of the image
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Definitions
- the present invention relates to a technique for recognizing the measure of the analog dashboard.
- This problem can be solved by shooting a remote analogue instrument panel, collecting the image of the instrument panel, and performing image processing on the collected image to recognize the measured values displayed by the analog instrument panel.
- the region of interest in the analog dashboard image is designated as the region of interest.
- the region of interest is designated by designating the position of 20 pixels in the image. It is inconvenient for the user to be initially set up. Therefore, it is not intuitive to designate the position of a certain pixel, and there is a limitation that it is not suitable for a user who uses a device having a small screen such as a touch smartphone Respectively.
- a method for processing an image of an analog instrument panel comprising: transmitting an image of an analog instrument panel to a user terminal to request a region of interest; Storing the area of interest corresponding to the analog instrument panel, and when the recognition of the analog instrument panel is requested, analyzing the area of interest among the entire images of the analog instrument panel, Is extracted.
- the method of recognizing the measurement value may include: analyzing the entire image to redetermine a region of interest when the measured values included in the region of interest can not be extracted; analyzing the redetermined region of interest, And extracting the measurement values included in the re-determined interest area.
- the redrawing of the ROI by analyzing the whole image detects a rectilinear component included in the whole image, and redraws the ROI by applying a morphology technique to the image area in the vicinity of the detected rectilinear component.
- the method of recognizing the measured value may include: requesting to re-input a pattern when the measured values included in the redetermined region of interest can not be extracted; and determining a region of interest determined based on the re- And storing the data corresponding to the instrument panel.
- the step of determining the ROI determines a polygonal area having the vertexes as the ROIs when the input pattern is a plurality of points. 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- the step of determining the ROI determines the ROI including the straight line as the ROI if the input pattern is a straight line.
- the step of determining the ROI determines the predetermined range as a ROI if the input pattern specifies a certain range.
- the step of determining whether it is necessary to take more of an analog instrument panel has a pixel of the first specific area threshold range exist determining that there is no need to take more of an analog instrument panel 20 and the specified area if in the pixel value is previously set in the image It is determined that the analog instrument panel needs to be additionally photographed when the value is not within the critical range.
- the method further includes transmitting the first image to a user terminal to request a region of interest, and determining a region of interest 25 of the first image based on the pattern input from the user terminal And the specific region is the determined region of interest.
- the step of determining the ROI determines a polygonal area having the vertexes as the ROI if the input pattern is a plurality of points.
- determining the region of interest is the case of the input pattern is a straight line 30 determines the region including the straight line as a region of interest. 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- the step of determining the ROI determines the predetermined range as a ROI if the input pattern specifies a certain range.
- generating the composite image determines an average value of pixel values of the initial image and the additional images, and generates a composite image having the determined average value as a pixel value.
- the present invention it is possible to determine the region of interest for recognizing the measured value of the analog instrument panel by a simple operation, and thus the user convenience can be improved as compared with the conventional method of inputting the direct coordinates
- a plurality of images for an analog instrument panel are acquired using a plurality of lights or cameras, and images obtained from the images that are out of the influence of illumination overshadow or shadow are used in combination, It is possible to increase the accuracy of the measurement result of the instrument panel.
- Figure 1 is a diagram illustrating an environment recognition system, or measurements that measure recognition system according to one embodiment of the implementation.
- FIG. 2 is a diagram illustrating an exemplary method of photographing an analog instrument panel according to an embodiment of the present invention.
- FIG. 3 is a view for explaining a method 20 for the measurement value recognition system to recognize a measurement value of an analog instrument panel.
- FIG. 4 is a diagram illustrating a specific method by which a server determines a region of interest based on a pattern
- 5 is a view for explaining a method of extracting a measured value by the server
- Figure 6 is a view for a user terminal receiving the input pattern from a user, the described process of displaying a region of interest 25
- FIG. 7 is a view for explaining a method of recognizing a measurement value of an analog instrument panel using a predetermined region of interest determined by the measurement value recognition system.
- FIG. 8 is a view for explaining a method in which the measurement value recognition system recognizes the measured value of the analog instrument panel by re-determining the region of interest.
- Fig. 9 is a diagram for explaining a specific method of redetermining the region of interest. 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- 10 is a view for explaining another method by which the measurement value recognition system recognizes the measurement values of the analog instrument panel.
- FIG. 11 is a view for explaining a photographing apparatus.
- 12 is a view showing five images of an analog instrument panel photographed using cameras and illuminations.
- 13 is a view for explaining another method by which the measurement value recognition system recognizes the measurement value of the analog instrument panel.
- FIG. 14 is a view showing a method of combining a plurality of analog instrument panel images to generate a composite image
- Figure 15 is a view showing a method for specifying a plurality of regions of interest in a single analog instrument panel image
- FIG. 1 is a view for explaining an environment and a measurement value recognition system in which a measurement value recognition system according to an embodiment is implemented.
- FIG. 2 is a block diagram illustrating an exemplary method of shooting an image of an analog instrument panel according to an embodiment 25 drawing.
- the environment in which the measurement value recognition system is implemented includes a measurement instrument 100 and a measurement value recognition system 200)
- the measuring instrument 100 measures the pressure, the flow power voltage or the current, and outputs the measured value to the analog instrument panel built in the measuring instrument 100) .
- the instrument panel is photographed to generate an analog instrument panel image, and a portion of the generated image, which is set by the user, is analyzed to recognize the value (i.e., measurement value) indicated by the measurement instrument needle or gauge of the analog instrument panel.
- the measurement value recognition system 200 includes a photographing device 210, a server 220 and a user terminal 230, and the photographing device 210, the server 220 and the user terminal 230 are connected to a network Lt; / RTI >
- the photographing apparatus 210 photographs an analog instrument panel provided in the measuring instrument 100 around the measuring instrument 100. 2, the first photographing device 211, the second photographing device 212 and the third photographing device 213 are connected to the first measuring device 110, the second measuring device 120, And the third measuring equipment 130 to photograph the analog instrument panel in close proximity.
- the form of the analog instrument panel is not limited to any one form.
- the image captured by the photographing apparatus 210 by photographing the analog instrument panel is not limited to the photograph form but may include an image targeted to the analog instrument panel.
- the photographing apparatus 210 transmits the photographed analog instrument panel image to the server 220, and the server 220 transmits the received image to the user terminal 230.
- the user terminal 230 displays the received image to the user and the user inputs a pattern for setting the region of interest to the user terminal 230.
- the user terminal 230 refers to a device having a display unit such as a smart phone or a notebook computer that can visually display an image and an interface unit capable of receiving a pattern from a user. It is not limited.
- the user terminal 230 transmits the pattern information to the server 220 when the user inputs a certain amount of time. .
- the server 220 determines an area of interest in which to perform image processing of the analog instrument panel based on the pattern information. A specific method of determining the region of interest based on the pattern input by the server 220, I will explain in detail.
- the server 220 stores the determined area of interest corresponding to the analog instrument panel in correspondence with each other, 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- the image processing can be performed by applying the same area of interest.
- the server 220 extracts the measurement values included in the region of interest by analyzing the region of interest in the image of the analog instrument panel.
- the server 220 re-determines the ROIs and analyzes the redetermined ROIs to extract the measurement values included in the redetermined ROIs. The method by which the server 220 re-determines the region of interest will be described in detail later.
- the server 220 may re-enter the pattern to the user via the user terminal 230
- Figure 3 is a view for explaining a method of this measure recognition system recognizes the measured value of the analog instrument panel
- Figure 4 is a view for explaining a specific method that the server determines a region of interest on the basis of the pattern
- Figure 5 is a server, And a method of extracting measurement values
- the user terminal 230 transmits a first measurement value recognition request to the server 220 (00).
- Server 220 analyzes the received butanone measure recognition request to the user terminal 230 determines the recording device to request the images taken and sends the request to the recording ⁇ 101), determining a photographing apparatus (03).
- the server 220 includes a user terminal 230, the first measured value recognize the recording of a first recording apparatus (211) for collecting hayeotneun bar, the image for the first measured value recognition request ≪ / RTI > To this end, the server 220 may map and store a photographing device for collecting images for each measured value.
- a first recording apparatus 211
- RTI > the server 220 may map and store a photographing device for collecting images for each measured value.
- the first photographing apparatus 211 photographs an analog instrument panel (and 05), and transmits an image of the analog instrument panel to the server 220 (ratio 107).
- the server 220 transmits an image of the analog instrument panel to the user terminal 230 and requests the setting of the region of interest (and 09).
- the user terminal 230 displays an image (and 11)
- the server 220 determines the region of interest to perform the image processing of the analog instrument panel based on the pattern input at the user terminal 230 ).
- the server 220 may determine a polygonal area having vertexes as points of interest.
- the server 220 sets the point received by the first touch input as the upper left vertex and the point received by the other touch input as the lower right vertex 10 rectangle regions that contain can be determined as the region of interest.
- the server 220 may determine an area containing the straight line as the region of interest
- server 220 when the input pattern is a single straight line, server 220) when the can determine 15 a rectangular area to the straight line diagonally to the region of interest is manil the input pattern different two straight lines as shown in FIG. 4, the server 220) is 4; can be determined that the rectangular region of the straight line as the two diagonal regions of interest.
- the server 220 receives the analog instrument type information from the user through the user terminal 230 and additionally takes into account the received form information, Or to display all possible regions of interest 25 for a particular pattern and request the user to select an area of interest
- the server 220 may determine a range of interest as a region of interest.
- the non-interest area may be determined through the above embodiments and an area other than the un-interest area in the image may be determined as the area of interest.
- the server 220 may request the user to select whether the region designated via the user terminal 230 is for setting the ROI or for setting the ROI.
- the present invention it is possible to determine the region of interest for recognizing the measured value of the analog instrument panel through the simple operation performed by the user on the user terminal 230 , thereby improving user convenience compared to the conventional method of inputting the direct coordinates Also, as shown in FIG. 16 , it is also possible to simultaneously perform multiple recognizations through a method 10 for designating a plurality of ROIs
- the server 220 transmits the region of interest to the user terminal 230 ).
- the user terminal 230 sends an image processing request to enter a confirmation from the display on the analog instrument panel image displayed on the user terminal 230), the region of interest, and 21), user bateumyeonwa 23), the server 15 220) and 25).
- the server 220 Upon receipt of the request, the server 220 analyzes the region of interest from the entire image of the analog instrument panel and extracts the measurement values contained in the region of interest 27).
- the server 220 can extract an area corresponding to a region of interest from among the entire images of the analog 20 instrument panel as shown in FIG. 5, and performs a binarization process and a morphology operation technique on the extracted region The image processing operation is performed to recognize the measurement values included in the corresponding region.
- a method of recognizing specific information in an image by performing an image processing operation is well known in the art and will not be described in detail here.
- the server 220 may provide a derived measure to the user.
- server 220 the method of providing a measured value is not limited to any hanhyeongtae.
- the server 220 may send the recognized measurements directly to the user terminal 230, or may transmit measurements recognized by other devices that are not the user terminal 230, and that are set by the user.
- 30 server 220 corresponds to the region of interest on the analog instrument panel 2019/117472 1 »(: 1 ⁇ ⁇ 2018/013550
- FIG. 6 is a diagram illustrating a process in which a user terminal receives a pattern from a user and displays a region of interest.
- the user terminal 230 displays the image received from the server 220 on the display.
- the user terminal 230 displays the pattern inputted by the user on the image, and can redisplay the region of interest determined by the server 220 on the image.
- the user may drag the region of interest to adjust the position of the region of interest displayed on the user terminal 230 and move the region of interest to a desired position, You can resize the edges and / or vertices by dragging them.
- FIG. 7 is a view for explaining a method of recognizing a measurement value of an analog instrument panel using a predetermined region of interest determined by the measurement value recognition system.
- the server 220 stores the region of interest (29) in the analog instrument panel and determines the start of measurement recognition (ratio 200). At this time, the determination of the measurement value start of the server 220 may be made in response to a request by the user terminal 230 as shown in FIG. 3, may be determined every predetermined time by the timer in the server 220, It is not limited.
- the server 220 determines a photographing apparatus to which the image photographing is to be requested 201, and transmits a photographing request to the determined photographing apparatus 2013).
- the determination of the photographing apparatus can be determined through a database in which the photographing apparatuses for collecting the images are mapped and stored according to the measured values, as described with reference to FIG.
- the first photographing device 211 photographs the analog camera 1 and ratios 205, and transmits an image of the analog camera to the server 220 again.
- the server 220 Upon receiving the re-captured image, the server 220 determines an area of interest 209 corresponding to the re-photographed image based on the database constructed in step 29, and analyzes the determined area of interest in the re-photographed image, And extracts the measurement values included in the region 211). 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- FIG. 8 will be described with reference to FIGS. 8 and 9.
- FIG. 8 is a view for explaining a method of recognizing a measurement value of an analog instrument panel by re-determining a region of interest by the measurement value recognition system
- FIG. 9 is a view for explaining a specific method of redetermining a region of interest.
- the image is re-crystallized region of interest.
- the server 220 detects a linear component included in the image 301) and applies a morphology technique to the image region in the vicinity of the detected linear component to re-determine the region of interest 303).
- the server 220 analyzes the re-determined region of interest in the image and extracts a measurement value included in the re-determined region of interest . If 8305 is not a measure recognized in step the server 220 may request the re-input patterns to the user via the user terminal 220, if the 25, the server 220 is based on the material input pattern Can be stored corresponding to the analog instrument panel
- 10 is a view for explaining another method by which the measurement value recognition system recognizes the measurement values of the analog instrument panel.
- the measurement value recognition system 200 is taken to an analog instrument panel 30 through the image pickup apparatus 210 and ⁇ 400), the image for the analog instrument panel 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- the measured value recognition system 200 receives pattern information input by the user on the image of the analog instrument panel displayed on the user terminal 230 ( 420).
- measure recognition system 200 determines that the 11 regions of interest based on the received pattern information 1 ⁇ 2 430). A detailed method of determining the region of interest based on the pattern information by the measurement recognition system 200 is described with reference to FIG. 4 , and detailed description thereof will be omitted.
- the measurement value recognition system 200 detects 10 straight line components included in the image of the analog instrument panel and determines a second region of interest by applying a morphology technique to the image region near the detected linear component 440.
- a specific method for the measurement value recognition system 200 to detect a linear component in an image and perform image processing in an area near a linear component to determine a region of interest has been described with reference to FIG. 9 , and a detailed description thereof will be omitted.
- measure recognition system 200 determines a final area of interest using a first region of interest task 2 region of interest 450).
- the measurement value recognition system 200 includes a first region of interest and the second determines the similarity of interest areas, designated directly by the user if the similarity determining more than a preset threshold value the first region of interest to a final area of interest 20
- the measured value recognition system 200 can re-request the pattern information to the user and re-determine the first region of interest based on the newly received pattern information.
- the measurement value recognition system 200 determines an area corresponding to the final area of interest in the image of the analog instrument panel and performs image processing 25 on the area to extract the measurement value 460).
- Fig. 11 is a view for explaining a photographing apparatus
- Fig. 12 is a diagram showing images of an analog instrument panel photographed using cameras and illuminations.
- first measuring equipment 110 and the first photographing equipment 211 will be described, and description of the same contents as those of FIG. 1 to FIG. 10 will be omitted.
- the first photographing apparatus 211 is a photographing apparatus 2019/117472 1 »(: 1 ⁇ ⁇ 2018/013550
- a plurality of cameras and lights collects an initial image of the analog instrument panel using one of the plurality of cameras and at least one of the plurality of lights.
- the occurrence of illumination reflection in response to a subject has a negative effect on image recognition.
- the light directly reflects the numerical value of the measured value due to the reflection
- the possibility of malfunctioning in recognizing the numerical value due to the shape change of the numerical figure in the photograph is greatly increased.
- the degree of condensation reflected at one point of the object becomes worsened, and the case can be further added.
- the reflection is good because the material has a surface on which light reflection such as metal appears.
- the first photographing apparatus 211 can be implemented so as to photograph an analog instrument panel using cameras and lights having different angles.
- the first imaging device 211 may be implemented with a single camera and illuminations located in four directions, up and down and left and right, as shown in FIG. 11 ( 3) , It is possible to shoot an analog instrument panel using different illumination.
- the first imaging device 211 may be implemented with cameras positioned in a single illumination, front, and up, down, left, and right directions as shown in FIG. 11, You can shoot at different angles.
- the first photographing apparatus 211 may include a plurality of cameras and lights in the verb, and is not limited to any one of the forms shown in the drawings.
- 12 is a view showing images obtained when the first photographing apparatus 211 of FIG. 11 photographs an analog instrument panel using the respective illuminations, and FIG. 12 (the first photographing apparatus of FIG. 11 211 are images taken when the analog instrument panel is photographed using cameras located on the front, left, and right sides, respectively.
- the first photographing apparatus 211 transmits the collected image to the server 220, 2019/117472 1 »(: 1 ⁇ ⁇ 2018/013550
- the server 220 determines whether the additional image is required to be collected for the analog instrument panel based on the received pixel value of the original image, generates a composite image in which the first image and the additional image are combined when the additional image is collected, Recognizes the measurement values contained in the image.
- the method by which the server 220 recognizes the measured values through the above process will be described in detail with reference to FIG.
- FIG. 13 is a view for explaining another method of recognizing a measurement value of an analog instrument panel by the measurement value recognition system
- FIG. 14 is a diagram illustrating a method of combining a plurality of analog instrument panel images to generate a composite image.
- the server 220 determines a measurement value recognition start ratio 500). At this time, the determination of the measurement value start of the server 220 may be made by a request by the user terminal as shown in FIG. 3, may be determined every predetermined time by the timer in the server 220, .
- the server 220 transmits a photographing request to the first photographing apparatus 211 (state 01), and the first photographing apparatus 211 photographs the analog instrument panel 211 using at least one of the plurality of cameras and the plurality of lights, (Condition 03).
- the server 220 may transmit together the camera information and the lighting information corresponding to the camera and the illumination, respectively, so as to request the photographing of the analog instrument panel using the predetermined camera and illumination, 1 photographing apparatus 211 can photograph an analog instrument panel using cameras and lights respectively mapped to camera information and illumination information.
- the first photographing device 211 and the server 220 may map and store camera information and illumination information for each of a plurality of cameras and lights.
- the user can first determine in advance the camera and illumination to use to photograph the analog instrument panel.
- the first photographing apparatus 211 transmits the first image obtained by photographing the analog instrument panel to the server 220 (state 05).
- the server 220 Upon receiving the initial image from the first imaging device 211, the server 220 analyzes the pixel value of the original image and ratios 507) and determines whether it is necessary to further photograph the analog dashboard based on the pixel value of the original image ( Situation 09).
- the server 220 calculates the pixel value of each area existing in the original image 2019/117472 1 » (: 1 ⁇ ⁇ 2018/013550
- the server 220 divides the original image into a predetermined size and divides the original image into a plurality of regions and performs the process for each divided region.
- the pixel value is high in the area where the reflection is caused by the illumination, and the pixel value is low in the dark area where the measurement value is difficult to recognize even if the reflection is not 5.
- the server 220 determines whether or not the pixel value of the specific area is within the predetermined threshold range. To this end, the server 220 determines an average value of the pixels within each range, and if the determined average value falls within the threshold range 10 can be determined whether it exists
- the server 220 determines that it is unnecessary to further photograph an analog instrument panel when the pixel value of a specific area of the original image is within a predetermined threshold range.
- using can decide that it is necessary to take additional analog instrument panel using at least one of a camera having a camera with a different angle when using light, or 15 wherein the first image is taken with a light and a different angle
- a pixel value in a certain area is below the threshold range, it can be determined that it is necessary to shoot additional analog dashboards using lighting that illuminates that 20 range. Also, for example, if the pixel value of a specific area is above the threshold range, the range is not bright enough to recognize the measured value, so it is necessary to shoot additional analog dashboards using illumination that illuminates the other side of the range Can be determined.
- the server 220 is the first image of the user terminal 230 as described in the first to 10 degrees)
- the specific area is defined as the area corresponding to the area of interest in the original image.
- the server 220 when the server 220 receives an additional image from the first image capturing apparatus 211 , the first image and the additional image are combined to generate a composite image 5, Additional images can be collected until they are within range.
- the server 220 combines the original image with the additional image to generate a composite image 517).
- Server 220 when 15 was collected first, and price image to which are images taken using the light with the vertical and horizontal directions, by using the average pixel values of the image to create a composite image can also, server 220), when the collected first and additional images are, which are images taken using the illumination in the vertical direction, and using the average pixel values of the image can produce a composite image in addition, the server 220) If the collected first and additional images are, which are images taken using the illumination in the lateral direction 20, it is possible to generate a composite image by using the average pixel values of the image. in addition, the server 220) is added to the collected first and If the images are images taken using illuminations in the up, down, left, and right directions, the minimum pixel values of the images Use can be a synthetic image.
- the server 220 then performs image processing on the composite image to extract 25 measurements 519).
- the server 220 performs image processing on the original image to recognize the measurements 519 if the collection of additional images is not required, 521 ). In this case, the server 220 can provide the extracted measurement value to the user.
- a plurality of regions of interest can be designated in a single analog dashboard image using the above-described method.
- the analog dashboard image includes the first clock indicating the time in the analog format and the second clock indicating the time in the digital format
- the user can use the method described above , You can designate the clock 1 and clock 2 simultaneously in the single analog instrument panel image as the area of interest. 15, when the analog instrument panel image expresses the use amount information of 0 1 in two or more different forms, the user designates two or more different types as the interest area simultaneously by using the method described above can do..
Abstract
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KR1020180083175A KR20190070238A (ko) | 2017-12-12 | 2018-07-17 | 아날로그 계기판의 측정값 인식 시스템 및 방법 |
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Cited By (2)
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CN111931620A (zh) * | 2020-07-31 | 2020-11-13 | 北京奈伦机器人科技有限公司 | 仪表盘定位识别方法、装置、电子设备及存储介质 |
CN112085654A (zh) * | 2020-08-10 | 2020-12-15 | 国网上海市电力公司 | 一种可配置式模拟屏识别系统 |
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KR101183211B1 (ko) * | 2012-04-30 | 2012-09-14 | 주식회사 신아시스템 | 계량기 영상 정보의 세그멘테이션 처리장치 |
WO2017168473A1 (ja) * | 2016-03-28 | 2017-10-05 | パナソニックIpマネジメント株式会社 | 文字図形認識装置、文字図形認識方法、及び文字図形認識プログラム |
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CN111931620A (zh) * | 2020-07-31 | 2020-11-13 | 北京奈伦机器人科技有限公司 | 仪表盘定位识别方法、装置、电子设备及存储介质 |
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