OVERFLOW CONTROL TECHNIQUES FOR IMAGE SIGNAL PROCESSING

Certain embodiments disclosed herein relate to an image signal processing system includes overflow control logic that detects an overflow condition when a destination unit when a sensor input queue and/or front-end processing unit receives back pressure from a downstream destination unit. In one embodiment, pixels of a current frame are dropped when an overflow condition occurs. The number of dropped pixels may be tracked using a counter. Upon recovery of the overflow condition, the remaining pixels of the frame are received and each dropped pixel may be replaced using a replacement pixel value.