1. A method of storing an object detected in a video clip in a multi-dimensional content database, the method comprising: generating a shape signature using multi-bit histogram bins reduced to single bit histogram bins in sectored rings around a keypoint of an object detected in a frame of the video clip; and storing data associated with the object in the video clip at a leaf node of the multi-dimensional content database having a plurality of leaf nodes, wherein the shape signature is used as an address to access the data associated with the object in the video clip from the leaf node.