WO2022135427A1 - 判断完整图标的方法及系统 - Google Patents
判断完整图标的方法及系统 Download PDFInfo
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Definitions
- the present invention relates to the technical field of image recognition, and in particular, to a method and system suitable for judging complete icons in a moving state.
- a mobile robot is a kind of intelligent robot that is programmed to the robot on a preset route, so that the robot can travel along the preset route according to the set rules.
- Patent document CN 111625003 A discloses a mobile robot toy and a method of using the same. According to the road section, moving on the bearing surface to search and read the instruction card to obtain the corresponding action instruction, and execute the action in any of the following ways; Execute actions according to a single instruction card; execute actions according to a combination of multiple instruction cards; execute actions according to a combination of instruction cards and road sections; - execute actions according to a combination of instruction cards and identification information on the bearing surface.
- the mobile robot can be controlled by simple and clear operation, which eliminates the complicated programming work and is convenient for children to use.
- this mobile robot has the following problems in practical implementation:
- the mobile robot recognizes the icon 1 of the instruction card while moving, which inevitably leads to a long time to recognize the image, and is affected by the speed of the mobile robot and the timing of image recognition.
- the time is about 100ms, and the premature recognition will cause the situation of missing the instruction card because only part of the icon 1 is within the recognition range 2 in the recognized image.
- the purpose of the present invention is to provide a method and system for judging a complete icon.
- Image acquisition step collect a frame of image, and divide the judgment area in the surrounding area of the image;
- Image scanning step scan and count the number of pixels of the corresponding color of the icon in the whole described image and the number of pixels of the corresponding color of the auxiliary mark of the judgment area;
- Judging step the number of pixels of the color corresponding to the icon in the image is less than or equal to the first threshold, or the number of pixels of the color corresponding to the auxiliary marks of one or more judgment areas in all judgment areas is less than or equal to the second threshold. In this case, it is determined that the icon of the image is incomplete; the number of pixels of the color corresponding to the icon in the image is greater than the first threshold, and the number of pixels of the color corresponding to the auxiliary mark of each determination area is greater than the second threshold. In this case, it is determined that the icon of the image is complete.
- the color of the auxiliary logo is different from the color of the icon.
- the determination area forms a closed-loop rectangular ring structure along the edge of the image
- the judging step includes:
- the icon has a first color
- the auxiliary logo has a second color
- the area of the second color or the inner envelope of the area of the second color surrounds the area of the first color
- a system for judging a complete icon provided according to the present invention includes:
- Image acquisition module collect a frame of image, and divide the judgment area in the surrounding area of the image;
- Image scanning module scan and count the number of pixels of the color corresponding to the icon in the entire described image and the number of pixels of the corresponding color of the auxiliary mark of the judgment area;
- the determination area forms a closed-loop annular structure along the edge of the image.
- the color of the auxiliary logo is different from the color of the icon.
- the determination area forms a closed-loop rectangular ring structure along the edge of the image
- the judging module includes:
- the other two It is determined whether there are straight lines in each determination area, and if the determination result is no, it is determined that the icon of the image is incomplete, and if the determination result is yes, the icon of the image is determined to be complete.
- the icon has a first color
- the auxiliary logo has a second color
- the area of the second color or the inner envelope of the area of the second color surrounds the area of the first color
- the judging module includes:
- the present invention has the following beneficial effects:
- the present invention can ensure that the recognition operation is performed when the image is complete under limited computing resources. For example, if the recognition operation is performed when the image is recognized but the image is not complete, when the trolley moves to the top of the image and the complete image can be collected at the next moment, the recognition operation for the incomplete image is still in progress, resulting in failure to Perform recognition operations on complete images in a timely manner;
- the present invention can complete the recognition operation at a relatively fast speed, and can improve the recognition efficiency while reducing the hardware configuration requirements.
- the moving speed of the mobile robot can be increased by one percentage compared with the traditional one. times.
- Fig. 2 is the schematic diagram of dividing the judgment area
- Fig. 3 is the working flow chart of embodiment 1;
- Fig. 5 is the schematic diagram that the icon is placed on the line
- a method for judging a complete icon includes:
- Image acquisition step collect a frame of image, and divide the judgment area in the surrounding area of the image.
- the judgment area forms a closed-loop annular structure along the edge of the image.
- the purpose is to ensure that there is no icon content in the edge part of the image, or to ensure that the icon content is minimal. It can be a rectangular structure as shown in Figure 2, which is divided into the first judgment area. 3.
- the second determination area 4, the third determination area 5 and the fourth determination area 6 (corresponding to the four areas a, b, c, and d in FIG. 3 ), of course, can also be a complete circle in other embodiments Rings, or complete, composed polygonal rings.
- noise filtering may be performed on the collected image, and interference factors in the image may be removed according to preset rules, and then the image scanning step is entered.
- the method of image denoising can use existing technologies, such as: filter based on spatial domain, wavelet threshold denoising based on wavelet domain, image denoising based on PDE, total variation (TV) image denoising, etc. The invention does not limit this.
- Image scanning step scan and count the number of pixels of the color corresponding to the icon in the entire image and the number of pixels of the color corresponding to the auxiliary mark of the determination area.
- the color corresponding to the icon is a black pixel
- the auxiliary sign corresponds to a white pixel, so as to ensure that the two colors are different for easy identification.
- the icons can be set to be the first color, the auxiliary signs to the second color, and the first color and the second color can be set.
- the color of the second color is different, and the area of the second color or the inner envelope of the area of the second color surrounds the area of the first color.
- the first color is not limited to only one color, but can also be a combination of various colors
- the second color is not limited to only one color, but can also be limited to a combination of various colors.
- the method of judging whether the icon is complete or not adopted by the present invention can not miss the icon when the trolley moves fast, can improve the recognition efficiency while reducing the hardware configuration requirements, and the moving speed of the trolley can be doubled.
- Image acquisition step collect a frame of image, and divide the judgment area in the surrounding area of the image.
- the judgment area forms a closed-loop annular structure along the edge of the image. The purpose is to ensure that there is no icon content in the edge part of the image, or to ensure that the icon content is minimal. It can be a rectangular structure as shown in Figure 2, which is divided into the first judgment area. 3.
- the second determination area 4, the third determination area 5, and the fourth determination area 6 may, of course, be a complete ring or a complete, combined polygon ring in other embodiments.
- Image scanning step scan and count the number of pixels of the color corresponding to the icon in the entire image and the number of pixels of the color corresponding to the auxiliary mark of the determination area.
- the color corresponding to the icon is a black pixel
- the auxiliary sign corresponds to a white pixel, so as to ensure that the two colors are different for easy identification.
- Judgment step the number of pixels of the color corresponding to the icon in the image is less than or equal to the first threshold and there are pixels of the color corresponding to the auxiliary marks of two judgment areas (corresponding to 4 and 6 in Figure 5) that are opposite to each other in a rectangle
- the number is less than or equal to the second threshold, it is determined that the icon of the image is incomplete; otherwise, it is determined whether there are straight lines in the other two determination areas (corresponding to 3 and 5 in Figure 5), and if the determination result is no, it is determined that The icon of the image is incomplete, and if the judgment result is yes, it is judged that the icon of the image is complete.
- the system provided by the present invention and its various devices can be implemented by logically programming the method steps. , modules, and units realize the same function in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, the system provided by the present invention and its various devices, modules and units can be regarded as a kind of hardware components, and the devices, modules and units included in it for realizing various functions can also be regarded as hardware components.
- the device, module and unit for realizing various functions can also be regarded as both a software module for realizing the method and a structure within a hardware component.
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Abstract
Description
Claims (10)
- 一种判断完整图标的方法,其特征在于,包括:图像采集步骤:采集一帧图像,在图像的周边区域划分判定区域;图像扫描步骤:扫描统计整个所述图像中图标所对应颜色的像素点数量以及判定区域的辅助标识所对应颜色的像素点数量;判断步骤:在所述图像中图标所对应颜色的像素点数量小于等于第一阈值,或者所有判定区域中有一或多个个判定区域的辅助标识所对应颜色的像素点数量小于等于第二阈值的情况下,判定所述图像的图标不完整;在所述图像中图标所对应颜色的像素点数量大于第一阈值,且每个判定区域的辅助标识所对应颜色的像素点数量大于第二阈值的情况下,判定所述图像的图标完整。
- 根据权利要求1所述的判断完整图标的方法,其特征在于,在判定所述图像的图标不完整的情况下,返回采集下一帧图像;在判定所述图像的图标完整的情况下,对图标进行图像识别。
- 根据权利要求1所述的判断完整图标的方法,其特征在于,所述辅助标识的颜色与所述图标的颜色不同。
- 根据权利要求1所述的判断完整图标的方法,其特征在于,所述判定区域沿所述图像的边缘构成闭环的矩形环状结构;所述判断步骤包括:在所述图像中图标所对应颜色的像素点数量小于等于第一阈值且存在互为矩形对边的两个判定区域的辅助标识所对应颜色的像素点数量小于等于第二阈值的情况下,判定所述图像的图标不完整;在所述图像中图标所对应颜色的像素点数量大于第一阈值且存在互为矩形对边的两个判定区域的辅助标识所对应颜色的像素点数量大于第二阈值的情况下,在另外两个判定区域中判断是否均存在直线,若判断结果为否,则判定所述图像的图标不完整,若判断结果为是则判定所述图像的图标完整。
- 根据权利要求1所述的判断完整图标的方法,其特征在于,所述图标具有第一颜色,所述辅助标识具有第二颜色,所述第二颜色的区域或所述第二颜色的区域的内包络将所述第一颜色的区域包围;所述判断步骤包括:在所述图像的边缘存在所述第一颜色的像素点,且所述第一颜色的像素点数量超过第三阈值的情况下,判定所述图像的图标不完整;在所述图像中存在第一颜色的像素点,且所述图像第一颜色的像素点数量不小于第一阈值,且所述图像的边缘的第二颜色的像素点数量超过第四阈值的情况下,判定所述图像的图标完整。
- 一种判断完整图标的系统,其特征在于,包括:图像采集模块:采集一帧图像,在图像的周边区域划分判定区域;图像扫描模块:扫描统计整个所述图像中图标所对应颜色的像素点数量以及判定区域的辅助标识所对应颜色的像素点数量;判断模块:在所述图像中图标所对应颜色的像素点数量小于等于第一阈值,或者所有判定区域中有一或多个个判定区域的辅助标识所对应颜色的像素点数量小于等于第二阈值的情况下,判定所述图像的图标不完整;在所述图像中图标所对应颜色的像素点数量大于第一阈值,且每个判定区域的辅助标识所对应颜色的像素点数量大于第二阈值的情况下,判定所述图像的图标完整。
- 根据权利要求6所述的判断完整图标的系统,其特征在于,在判定所述图像的图标不完整的情况下,采集下一帧图像;在判定所述图像的图标完整的情况下,对图标进行图像识别。
- 根据权利要求6所述的判断完整图标的系统,其特征在于,所述辅助标识的颜色与所述图标的颜色不同。
- 根据权利要求6所述的判断完整图标的系统,其特征在于,所述判定区域沿所述图像的边缘构成闭环的矩形环状结构;所述判断模块:在所述图像中图标所对应颜色的像素点数量小于等于第一阈值且存在互为矩形对边的两个判定区域的辅助标识所对应颜色的像素点数量小于等于第二阈值的情况下,判定所述图像的图标不完整;在所述图像中图标所对应颜色的像素点数量大于第一阈值且存在互为矩形对边的两个判定区域的辅助标识所对应颜色的像素点数量大于第二阈值的情况下,在另外两个判定区域中判断是否均存在直线,若判断结果为否,则判定所述图像的图标不完整,若判断结果为是则判定所述图像的图标完整。
- 根据权利要求6所述的判断完整图标的系统,其特征在于,所述图标具有第 一颜色,所述辅助标识具有第二颜色,所述第二颜色的区域或所述第二颜色的区域的内包络将所述第一颜色的区域包围;所述判断模块包括:在所述图像的边缘存在所述第一颜色的像素点,且所述第一颜色的像素点数量超过第三阈值的情况下,判定所述图像的图标不完整;在所述图像中存在第一颜色的像素点,且所述图像第一颜色的像素点数量不小于第一阈值,且所述图像的边缘的第二颜色的像素点数量超过第四阈值的情况下,判定所述图像的图标完整。
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CN113689446B (zh) * | 2021-09-10 | 2024-01-26 | 上海布鲁可积木科技有限公司 | 图像定位及分割的方法及系统 |
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2021
- 2021-12-22 WO PCT/CN2021/140259 patent/WO2022135427A1/zh active Application Filing
- 2021-12-22 KR KR1020237022023A patent/KR20230113373A/ko unknown
- 2021-12-22 US US18/268,630 patent/US20240046665A1/en active Pending
- 2021-12-22 EP EP21909423.2A patent/EP4261736A4/en active Pending
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KR20230113373A (ko) | 2023-07-28 |
CN112597893A (zh) | 2021-04-02 |
US20240046665A1 (en) | 2024-02-08 |
EP4261736A4 (en) | 2024-01-17 |
EP4261736A1 (en) | 2023-10-18 |
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