1. A note management system, the system comprising: a device, comprising a sensor configured to generate a first image comprising a first visual representation of a scene having a plurality of physical notes, each of the physical notes comprising a separate physical object having a general boundary and recognizable content thereon; and a processing unit comprising: a note recognition module configured to receive, from the sensor, first image data associated with the first image and process the first image data, automatically identify one or more marks associated with one or more of the plurality of physical notes in the first image, determine a location associated with the one or more marks, and use the location to control the sensor to generate a second image comprising a second visual representation of the scene, wherein the second image comprises a zoomed-in image of one or more notes of the plurality of physical notes, the note recognition module further configured to determine the general boundary of one of the plurality of physical notes from the visual representation, a note authentication module configured to authenticate the one of the plurality of physical notes, a note extraction module configured to extract, in response to determining that the one of the plurality of physical notes is authenticated, the recognizable content of the one of the plurality of physical notes from the visual representation based on the determined general boundary of the one of the plurality of physical notes, and a note labeling module configured to label a digital note representing the one of the plurality of physical notes with a category.