Systems and techniques are disclosed for driver assistance. A driver assistance apparatus executes a first plurality of operations for a first frame of stereo images acquired by a stereo camera, and then executes a second plurality of operations for a second frame of the stereo images. The driver assistance apparatus includes at least one processor configured to receive the first frame from the stereo camera and determine a first scheduling for the first plurality of operations in the first frame, execute the first plurality of operations according to the first scheduling, and measure execution times of the first plurality of operations according to the first scheduling. The at least one processor then receives the second frame from the stereo camera and determines a second scheduling for the second plurality of operations based on the measured execution times of the first plurality operations that were executed in the first frame.