1. An object recognition method comprising: generating an image based on an event flow of an object; generating, based on the generated image, a plurality of region of interest (ROI) images corresponding to a plurality of ROIs; inputting the plurality of ROI images to a plurality of recognizers, the recognizers being configured to extract features of the plurality of ROIs; generating a composite feature based on the features extracted by the plurality of recognizers; and recognizing the object based on the composite feature.