REAL3™ Time-of-Flight (ToF) image sensor with VGA system resolution The REAL3™ IRS2877C is a 3D Time-of-Flight (ToF) image sensor tailored for the consumer and industrial markets. It provides a HVGA pixel resolution (~153k pixels), optimized interface, and an excellent depth performance-to-power consumption ratio. Thanks to its unique pixel layout, efficient up-scaling to VGA (307k) depth maps is enabled.