Ornament surface area rapid detection method and system based on image analysis technique
An image analysis and detection method technology, applied in measuring devices, instruments, and optical devices, etc., can solve the problems of low precision, poor accuracy, and high cost, and achieve a faster detection process, reduced workload, and high accuracy. Effect
Image
Examples
Embodiment 1
[0095] This embodiment selects the Creaform 3D Scan portable scanner, which has an accuracy of 0.1 mm and a measurement speed of 550,000 times / s. It can quickly and accurately reproduce the three-dimensional information of the object. It has the characteristics of lifelikeness and reproducibility. It can eliminate the shortcomings of traditional structured light imaging such as limited physical size, complicated acquisition, and high cost.
[0096] In order to illustrate the accuracy of the present invention's calculation, select a ring with a regular shape (such as Figure 6a and Figure 6b Shown) sample, utilize the present invention and traditional manual area measurement method to measure and calculate respectively, test data is compared.
[0097] Table 1: Manually measured ring size data (unit: mm)
[0098] diameter
width
16
3
[0099] According to the data in Table 1, the immersion area of the ring sample is calculated as:
[0100] S...
Embodiment 2
[0109] In this embodiment, the surface area of the more complicated necklace sample is detected, and the same calculation process as in Example 1 is adopted. The physical figure of the necklace sample is as follows Figure 7 shown.
[0110] Table 2: Manually measured life-size data (unit: mm)
[0111] necklace length
Necklace body width
buckle diameter
buckle thickness
nameplate length
Nameplate width
40
1
5
1
5
3
[0112] Necklace samples are more complicated than ring samples, and need to be decomposed to calculate the area. According to the shape of the necklace sample, it is roughly divided into three parts: the necklace body, which is approximately rectangular; the buckle, which is approximately circular; the nameplate, which is approximately rectangular. According to the manual test data in Table 2, we get:
[0113] 1. Necklace body area:
[0114] S 1 =2×(40×1)=80mm 2
[0115] 2. Buckle area:
[011...
Embodiment 3
[0125] In this embodiment, badge samples are selected, and the calculation process is the same as that in Example 1. Since the shape of the badge is irregular and the front surface has protrusions, the method of calculating the area by manual division is not only time-consuming and laborious, but also difficult to obtain accurate data. Using the present invention to measure and calculate the surface area, first use the Creaform 3D Scan portable scanner to align the simulated ornament. After a comprehensive scan, the effect after three-dimensional reconstruction is as follows: Figure 8a to Figure 8c shown.
[0126] Utilize the area calculation module of the present invention to measure and calculate the surface area, and the automatic calculation obtains that the surface area is 1,364.57 millimeters 2 , took 1 minute and 45 seconds, and successfully realized the 3D reconstruction and automatic calculation of the surface area of complex shape ornaments.
[0127] In this exam...
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Description
Claims
Application Information
- IPC
- G01B11/28
- Inventors
- 卫碧文; 杨荣静