Depth Camera Synchronization via Self-Adjusted Demodulation Clock

The patent implements feedback by having each depth camera measure its own distance to the host and use this information to automatically adjust its operation timing. The camera calculates a time compensation value based on its measured distance and applies this to synchronize its frame capture without requiring external trigger signals, thereby eliminating the trade-off between synchronization accuracy and frame rate.

Each depth camera performs self-synchronization by measuring its own distance to the host and independently calculating the appropriate time compensation. This self-service mechanism eliminates the need for centralized triggering by the host, allowing each camera to autonomously adjust its frame capture timing based on its specific position, thus maintaining high frame rates while achieving accurate synchronization.

The patent segments the light emission by assigning different time windows or time slots to each depth camera based on their positions relative to the host. Each camera operates in a designated time interval, preventing temporal overlap and thus eliminating interference between cameras while maintaining the ability to use different frequencies for improved depth measurement.

The system dynamically adjusts the emission timing and parameters of light sources based on the measured distances of individual cameras. By making the emission schedule adaptive rather than static, the system can optimize frequency and pulse width assignments for each camera without causing interference, thereby maintaining high measurement precision.