| 摘要 |
PROBLEM TO BE SOLVED: To provide methods, apparatuses and systems to implement active feedback to electrically sense or monitor the illumination and shutter pulses and adjust them actively to maintain the desired phase relationship/difference between the pulses.SOLUTION: Phase adjustment circuitry 214 and 216 to maintain the desired phase difference can make the distance calculation more accurate, even when conditions of a time-of-flight camera 202 varies (e.g., temperature, aging, etc.). Active compensation can correct errors 'on-the-fly', eliminating detailed characterization and manual adjustment during operation.SELECTED DRAWING: Figure 2 |
