High-precision micro-curved-surface complex beam optical detection method and system
A technology of optical detection and multiple beams, which is applied in image data processing, instruments, calculations, etc., can solve problems such as the inability to balance detection efficiency and detection accuracy, and achieve the effects of improving data accuracy, low cost, and high efficiency
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Embodiment 1
[0077] This embodiment provides a high-precision micro-curved surface complex beam optical detection method, such as figure 1 shown, including:
[0078] S1: emit a light beam to the object under test, and collect the beam reflection image during the rotation of the object under test;
[0079] S2: Preprocessing the beam reflection image to obtain a preprocessed image;
[0080] S3: Obtain the rotation direction of the measured object according to the preprocessed image;
[0081] S4: Calculate the surface normal vector of the measured object according to the preprocessed image and the rotation direction, and obtain the RGB image of the surface normal vector of the measured object;
[0082] S5: Process the surface normal vector RGB image to obtain the processed surface normal vector;
[0083] S6: Calculate the depth value of each point on the measured object according to the processed surface normal vector to form a depth map of the measured object;
[0084] S7: Reconstruct th...
Embodiment 2
[0087] This embodiment provides a high-precision micro-curved surface complex beam optical detection method, including:
[0088] S1: emit a light beam to the object under test, and collect the beam reflection image during the rotation of the object under test;
[0089] A fixed-position complex beam angle sensor is used to emit light beams to the measured object, and a fixed-position CMOS camera is used to capture the reflected image of the light beam during the rotation process of the measured object. Such as figure 2 Shown are the beam reflection images of the measured object rotated to different directions and angles.
[0090] When the traditional method collects the light beam reflection image of the measured object, it is necessary to use the light source to emit light beams from different directions to illuminate the measured object, and it is necessary to use the calibration sphere to calculate the approximate direction of the light source illumination, and then place ...
Embodiment 3
[0128] This embodiment provides a high-precision micro-curved surface complex beam optical detection system, such as Figure 9 shown, including:
[0129] An image acquisition module, configured to emit a light beam to the measured object, and collect the reflected image of the light beam during the rotation of the measured object;
[0130] The image preprocessing module is used to preprocess the light beam reflection image to obtain the preprocessed image;
[0131] The rotation direction calculation module obtains the rotation direction of the measured object according to the preprocessed image;
[0132] The normal vector calculation module calculates the surface normal vector of the measured object according to the preprocessed image and the rotation direction, and obtains the surface normal vector RGB image of the measured object;
[0133] The RGB image processing module processes the surface normal vector RGB image to obtain the processed surface normal vector;
[0134] ...
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