1. A system for detecting a motion, comprising: a parallel image generator configured to generate, in parallel, multi-resolution images, the generated multi-resolution images having at least one or more resolution levels; a characteristic dot extractor configured to extract a characteristic dot from at least one of the generated multi-resolution images; and a motion vector detector configured to detect a motion vector from a low-resolution image based on the extracted characteristic dot, and further configured to extend the detected motion vector of the low-resolution image to a high-resolution motion vector based on a result of the detection.