23. A method to identify a match between a query object and stored object data, the method comprising: calculating a distance between signatures of a query object and signatures of stored object data in a database to generate a similarity score for signatures within the calculated distance, wherein a signature of an object is generated using weighted values on contours of the object within an identified region of interest; determining a unique information content value is high by analysis of a term frequency of the signatures of the query object within the calculated distance that indicates a number of similar signatures within the calculated distance is less than a specified value; and selecting signatures from the stored object data having similarity scores that exceed a threshold and a calculated high unique information content value for the query object and for the identified region of interest, wherein the selected unique signatures retain differentiating information for each of the stored object data in the database.
23. A method to identify a match between a query object and stored object data, the method comprising: calculating a distance between signatures of a query object and signatures of stored object data in a database to generate a similarity score for signatures within the calculated distance, wherein a signature of an object is generated using weighted values on contours of the object within an identified region of interest; determining a unique information content value is high by analysis of a term frequency of the signatures of the query object within the calculated distance that indicates a number of similar signatures within the calculated distance is less than a specified value; and selecting signatures from the stored object data having similarity scores that exceed a threshold and a calculated high unique information content value for the query object and for the identified region of interest, wherein the selected unique signatures retain differentiating information for each of the stored object data in the database. 24. The method of claim 23 further comprising: identifying candidate matching frames based on the selected unique signatures; and correlating changes in the unique signatures between the query object and the stored object data associated with the candidate matching frames as a factor in a sequence correlation score to identify a likely matching stored object data.