…look at all parts of (something) carefully in order to detect some feature…
…scanning at a much slower rate than usual, so that the resulting signal has a much smaller bandwidth…
…a technique for narrowing the aspect ratio of a widescreen film to fit the squarer shape of a television screen by continuously selecting the most significant portion of the original picture, rather than just the middle portion…
…a CT scan of the torso, especially one obtained for health screening purposes…
