1. A system for leveraging user gaze in a user monitoring subregion selection system, the system comprising: a first camera configured to capture an image of a scene; a sensor configured to obtain an image reflected from one of the user's eyes; a gaze estimation and scene mapping module configured to estimate a gaze direction of the user using the image captured by the sensor and to map the estimated gaze direction to the image of the scene based on a location of an object of interest within the scene; and scene subregion selection module configured to select a subregion of the image of the scene based on the mapped user gaze direction.