3D Sensor System Parallel Linear Pattern Projection

The patent segments the projection task by dividing it into multiple linear patterns that are projected simultaneously. Instead of projecting one line at a time, the system projects multiple linear patterns in parallel, allowing multiple sets of three-dimensional points to be determined simultaneously, thereby significantly improving point-determining speed while maintaining relatively simple hardware through the use of standard projectors and cameras.

The patent implements a feedback mechanism where the system projects multiple linear patterns simultaneously, captures images with multiple cameras, extracts two-dimensional line sets, generates candidate three-dimensional point sets, and then verifies these candidates to select authentic points. This closed-loop process with verification and selection ensures that even when multiple patterns are projected simultaneously, the system can identify and correct mismatches, maintaining data accuracy while achieving high scanning speed.

The patent applies the principle of continuity by projecting multiple linear patterns simultaneously and capturing all necessary images in one synchronized operation. This allows the system to continuously acquire multiple sets of three-dimensional points without the sequential delays inherent in traditional single-pattern methods. The parallel projection and capture process eliminates idle time between pattern projections, significantly improving scanning efficiency and reducing the time required for point determination while maintaining hardware simplicity.