A method and apparatus for improving matching performance and compression efficiency with escriptor code segment collision probanility optimization. The method include extracting a global descriptor from a query image with a plurality of segments, identifying segments with a desirable discriminating potential by analyzing data of the plurality of segments based on an available image database, creating a bitmask where the identified segments are active, and masking any segment of the plurality of segments of the global descriptor that are inactive according to the bitmask.
METHOD AND APPARATUS FOR IMPROVING MATCHING PERFORMANCE AND COMPRESSION EFFICIENCY WITH DESCRIPTOR CODE SEGMENT COLLISION PROBABILITY OPTIMIZATION