METHOD AND DEVICE FOR COMPRESSING LOCAL FEATURE DESCRIPTOR, AND STORAGE MEDIUM

摘要

A method for compressing a local feature descriptor is provided in an embodiment of the present invention. The method comprises: selecting from a target image one local feature descriptor or a plurality thereof; according to a preset codebook, carrying out multistage vector quantization on the selected local feature descriptor, and quantizing same as a feature codestream, said codestream comprising serial numbers of codewords obtained by means of the multistage vector quantization. A device for compressing a local feature descriptor and a storage medium are also provided in embodiments of the present invention.