Image recognition method and device

An image recognition device, the device comprising:

• one or more processors;
• and
• a storage device configured to store one or more programs, wherein
• the one or more programs, when executed by the one or more processors, cause the one or more processors to:
• obtain a target image, and extract at least one first visual feature of the target image, wherein the first visual feature comprises a global visual feature and/or a local visual feature;
• obtain at least one pending image according to the first visual feature of the target image, and extract a plurality of second visual features of the target image and the plurality of second visual features of the pending image, wherein the second visual feature is a local visual feature, wherein each second visual feature contains less amount of data than the first visual feature;
• for each pending image, form a plurality of visual feature pairs, wherein each visual feature pair comprises one of second visual features of the target image and a respective second visual feature of the pending image;
• and remove an unavailable visual feature pair from the plurality of visual feature pairs, to obtain at least one remaining feature pair;
• and
• determine an image similar to the target image from the at least one pending image, according to the at least one remaining feature pair obtained for each pending image.