High precision binocular structured light camera

Structured light projection: Firstly, the structured light is projected onto the target object through a projector. Structured light is typically emitted by infrared or visible light sources and is specially encoded or modulated, such as using gratings or speckle patterns. The projected structured light produces patterns of brightness, darkness, or distortion on the surface of the target object.

Binocular camera: While projecting structured light, binocular cameras (usually two cameras) simultaneously capture the target object. These two cameras are located within a certain distance, usually simulating the distance between human eyes. The camera will record the pattern of structured light projected onto the target object and the appearance of the target object.

Image acquisition: The camera will capture two images, namely the left eye image and the right eye image. In these two images, the structured light projection on the target object produces distortion or offset, which contains the depth information of the target object.

Image processing: By calculating the difference between the images captured by the left and right cameras, the depth information of the target object's surface can be inferred. By combining the patterns of structured light projection with the differences in binocular images, a three-dimensional point cloud model of the target object can be generated, which is a three-dimensional shape model composed of multiple points.

Measurement and reconstruction: Finally, using the obtained 3D point cloud model, the shape and size of the target object can be measured, analyzed, or reconstructed.