def append(self, f):
        list.append(self,f)
        ts = self
        if ts[0].area <= 0:
            return
        f.sizeRatio = float(ts[-1].area)/float(ts[0].area)
        f.vel = self.__pixelVelocity()
        f.rt_vel = self.__pixleVelocityRealTime()
        self.__setKalman()
        self.__predictKalman()
        self.__changeMeasure()
        self.__correctKalman()
        f.predict_pt = self.predict_pt
        f.state_pt = self.state_pt

    # Issue #256 - (Bug) Memory management issue due to too many number of images.
@persist
dataset/ETHPy150Open sightmachine/SimpleCV/SimpleCV/Tracking/TrackSet.py/TrackSet.append--crossover with--dataset/ETHPy150Open jeff1evesque/machine-learning/brain/cache/redis_query.py/Redis_Query.persist