A multifunctional floor mat

Abstract

This invention provides a multifunctional floor mat, comprising a mat body with multiple first-type markers containing parallel first-type line segments and at least one second-type marker containing second-type line segments. The second-type markers are used to mark the boundaries of a preset area, and the first-type line segments coincide with the second-type line segments, using the coincidence point to uniformly correct image distortion. A third-type marker is further added, with its center point precisely coinciding with the center point of the second-type marker, achieving efficient spatial reuse. Non-overlapping and overlapping areas are provided between the second-type and third-type markers; the non-overlapping areas are preferably white, creating multiple color contrasts with the overlapping areas and the mat surface. This design, combined with the center-coincidence characteristic, provides high-contrast boundary features for machine vision, robustly segments marker outlines, overcomes the limitation of blurred outlines in traditional markers under complex lighting conditions, and significantly improves the accuracy, reliability, and adaptability of automatic evaluation in various scenarios such as long jump and ball passing.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools for motion assessment based on machine vision, and in particular to a multifunctional floor mat. Background Technology

[0002] Traditional sports mats have limited functionality and cannot simultaneously meet the needs of various sports for precise area calibration and measurement. Especially when using fixed image acquisition equipment for automatic evaluation, image distortion can easily lead to boundary recognition errors. If different sports markers are set up independently, they take up a lot of space and lack coordination, affecting recognition efficiency. Markers with single colors or simple geometric shapes are difficult to recognize under complex lighting conditions, limiting evaluation accuracy and application scenarios. Utility Model Content

[0003] This utility model proposes a multifunctional floor mat, including a mat, on which multiple first-type marks and at least one second-type mark are provided. The first-type mark has a first-type line segment portion, and the multiple first-type line segment portions are arranged in parallel. The second-type mark can mark the boundary of a preset area, and the second-type mark has a second-type line segment portion, with the first-type line segment portion and the second-type line segment portion coinciding.

[0004] The mat has an equal number of first-type and second-type markings, and the multiple first-type line segments and multiple second-type line segments correspond and overlap one-to-one.

[0005] Among them, multiple first-type line segments are arranged at equal intervals.

[0006] The second type is identified as a rectangle, and the second type line segments belong to either the left or right side of the rectangle.

[0007] The mat has a third type of marking, the center point of which coincides with the center point of the second type of marking.

[0008] The mat has the same number of third-type markings as the second-type markings, and the center points of the second-type markings and the third-type markings are aligned.

[0009] Among them, there is a non-overlapping area between the second type of markings and the third type of markings on the mat, and there is an overlapping area between the second type of markings and the third type of markings on the mat, and there is a color difference between the non-overlapping area and the overlapping area.

[0010] Color difference is formed between the non-overlapping areas and the non-overlapping areas on the mat.

[0011] The second type is identified as a regular polygon.

[0012] The third type is identified as a regular polygon.

[0013] This multifunctional floor mat effectively eliminates image distortion, unifies and corrects boundaries, and improves recognition accuracy by aligning the first type of line segment of the first type of sign with the second type of line segment of the second type of sign. The center points of the second type of sign and the third type of sign are precisely aligned, making efficient use of space and providing positional references for different projects. Non-overlapping and overlapping areas with significant color differences are set between the second type of sign and the third type of sign. In particular, the white non-overlapping area is preferred to form a high-contrast boundary, enabling machine vision algorithms to quickly and robustly segment the sign outline, overcoming the problem of blurred outlines in traditional signs. Finally, through collaborative sign design and the application of multiple color differences, it breaks through technical limitations and significantly improves the recognition accuracy, reliability, and application flexibility in evaluation under multiple motion scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a multifunctional floor mat proposed in this utility model. Detailed Implementation

[0015] refer to Figure 1 This utility model proposes a multifunctional floor mat, including a mat 1. The mat 1 is provided with a plurality of first type marks 11 and at least one second type mark 12. The first type mark 11 has a first type line segment portion 111. The plurality of first type line segment portions 111 are arranged in parallel. The second type mark 12 can mark the boundary of a preset area 13. The second type mark 12 has a second type line segment portion 121. The first type line segment portion 111 and the second type line segment portion 121 overlap.

[0016] First, multiple first-type markers 11 are evenly arranged on the mat 1. Each first-type marker 11 has a first-type line segment portion 111. These first-type line segments 111 are arranged in parallel to form a reference line group. At the same time, at least one second-type marker 12 is arranged. The second-type marker 12 has a second-type line segment portion 121. The first-type line segment portion 111 and the second-type line segment portion 121 coincide at a specific position to ensure marker alignment. Next, the mat is placed in a flat area designated in a fixed location to avoid external interference. After the fixed image acquisition device is started, it acquires an image containing the mat. The device quickly identifies the first-type line segment portion 111 of the first-type marker 11 using a machine vision algorithm. The parallel arrangement of the first-type line segment portion 111 serves as a stable reference, helping to eliminate the effects of lens distortion during image acquisition. Subsequently, the algorithm processes the second-type marker 12. The second-type marker 12 directly marks the boundary of the preset area 13. Since the first-type line segment portion 111 and the second-type line segment portion 121 coincide, the entire image is uniformly corrected using the coincidence point, which improves the accuracy of boundary recognition. The corrected image data is used in different sports scenarios. For example, in long jump assessment, the first type of line segment 111 serves as a distance scale reference. The score is automatically calculated by measuring the relative position of the individual to the first type of line segment 111, without manual intervention. In ball-passing activities, the boundaries of the preset area 13 are clearly defined within a specific range. The algorithm monitors in real time whether individuals cross the boundary, ensuring compliance with regulations. The entire process, through overlapping label design, overcomes the boundary misjudgment problem caused by image distortion in traditional methods. It also overcomes the information gap in label uniformity correction that is often overlooked by those skilled in the art, enabling seamless multi-scenario integration. The simple mat structure also improves assessment efficiency and reliability.

[0017] The mat 1 has an equal number of first-type markings 11 and second-type markings 12, with multiple first-type line segments 111 and multiple second-type line segments 121 corresponding and overlapping one-to-one. Therefore, in scenarios similar to ball-passing activities, simultaneous evaluation of ball-passing by multiple people can be achieved.

[0018] In this configuration, multiple first-type line segments 111 are arranged at equal intervals. The second-type identifier 12 is a rectangle, and the second-type line segments 121 belong to either the left or right side of the rectangle.

[0019] The mat 1 has a third type of identifier 14, the center point of which coincides with the center point of the second type of identifier 12. The mat 1 also has the same number of third type identifiers 14 as the second type of identifiers 12, with each second type of identifier 12 and third type of identifier 14 having a corresponding center point. There are non-overlapping areas between the second type of identifiers 12 and the third type of identifiers 14 on the mat 1, and overlapping areas between the non-overlapping and overlapping areas. A color difference exists between the areas outside the non-overlapping areas on the mat 1. The second type of identifier 12 is a regular polygon. The third type of identifier 14 is a regular polygon.

[0020] Multiple regular polygonal second-type markers 12 are set on the mat 1 to mark the boundary of the preset area 13. Simultaneously, an equal number of regular polygonal third-type markers 14 are set, ensuring that the center point of each third-type marker 14 precisely coincides with the center point of its corresponding second-type marker 12. This center point coincidence design efficiently utilizes the space of the mat 1, providing independent and positionally related reference markers for different sports. Subsequently, overlapping and non-overlapping areas are designed between the second-type markers 12 and the third-type markers 14, creating a significant color difference contrast between the overlapping and non-overlapping areas. Simultaneously, a clear color difference is also created between the non-overlapping areas and their outer mat surface areas, with the non-overlapping areas preferably being white. This multi-color difference design, particularly utilizing the high contrast of the white non-overlapping areas, produces strong visual distinctions in the image. After a fixed image acquisition device captures an image of the mat, the machine vision algorithm first identifies the second-type markers 12 to determine the boundary of the preset area 13. Utilizing the strict coincidence of the center points of the third-type markers 14 and the second-type markers 12, the third-type markers 14 are directly located through coordinate mapping without the need for additional calculation of their center positions. Next, the algorithm focuses on analyzing the color difference boundary region between the second-type identifier 12 and the third-type identifier 14, especially the edges of the high-contrast white non-overlapping area. By accurately capturing these clear geometric edges formed by color differences, the algorithm can quickly and robustly segment the complete outlines of the second-type identifier 12 and the third-type identifier 14, overcoming the problem of blurred outlines in traditional single-color identifiers under complex lighting conditions. After determining the precise outline and position of the third-type identifier 14, this identifier can be used to mark specific areas or reference points for third-category sports other than long jump or ball passing. Finally, through the synergistic effect of center point coincidence and multiple color differences, not only can the flexibility of aesthetic design be amplified, but more importantly, it provides machine vision with layered and easily segmented image features, breaking the technical limitations of those skilled in the art who rely solely on a single identifier or ignore color differences to enhance the outline, thereby significantly improving the recognition accuracy and reliability of multi-type sports identifiers in complex application scenarios.

[0021] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A multi-functional floor mat, characterized by, The mat (1) includes a plurality of first type marks (11) and at least one second type mark (12). The first type mark (11) has a first type line segment (111) and the plurality of first type line segments (111) are arranged in parallel. The second type mark (12) can mark the boundary of a preset area (13) and has a second type line segment (121). The first type line segment (111) and the second type line segment (121) overlap.

2. The multi-functional floor mat of claim 1, wherein, The mat (1) has an equal number of first type markings (11) and second type markings (12), and multiple first type line segments (111) and multiple second type line segments (121) correspond to each other one by one.

3. The multi-functional floor mat of claim 2, wherein, Multiple first-type line segments (111) are arranged at equal intervals.

4. The multi-functional floor mat of claim 2, wherein, The second type of identifier (12) is a rectangle, and the second type of line segment (121) belongs to the left side or the right side of the rectangle.

5. The multi-functional floor mat of claim 1, wherein, The mat (1) is provided with a third type mark (14), the center point of which coincides with the center point of the second type mark (12).

6. The multi-functional floor mat of claim 2 or 5, wherein, The mat (1) has the same number of third type marks (14) as the second type marks (12), and the center points of the second type marks (12) and the third type marks (14) are aligned.

7. The multifunctional floor mat as described in claim 6, characterized in that, There is a non-overlapping area between the second type mark (12) and the third type mark (14) on the mat (1), and there is an overlapping area between the second type mark (12) and the third type mark (14) on the mat (1). There is a color difference between the non-overlapping area and the overlapping area.

8. The multifunctional floor mat as described in claim 7, characterized in that, A color difference is formed between the non-overlapping areas and the non-overlapping areas on the mat (1).

9. The multifunctional floor mat as described in claim 1, characterized in that, The second type of identifier (12) is a regular polygon.

10. The multifunctional floor mat as described in claim 5, characterized in that, The third type of identifier (14) is a regular polygon.

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