def METHOD_NAME(self, frame):
    r = self.results
    r.pixelsum_nav[:] = np.sum(frame)
    r.pixelsum_sig[:] += frame
    r.pixelsum_nav_raw[self.meta.slice.get(nav_only=True)] = np.sum(frame)
    r.pixelsum_sig_raw[self.meta.slice.get(sig_only=True)] += frame