ataintheoriginalspaceaswellasreducestherequiredhashfunctions.uracy.Then,westudyaSphericalHashingimageretrievalalgorithmwhichconstructsmanyhyperspheretoprojecttheimagefeature,oprojectthehigh-paredwithhyperplane,urately.Meanwhile,weadopttheSphericalHashingHammingdistancetomeasurethesimilaritybetweenimages,plementswiththeSphericalHashingencodingmanner.uracyofthealgorithmbasedonhypersphereishigherthancurrenthyperplane-basedalgorithm.Furthermore,onthebasisoftheabovealgorithms,wedevelopaclient-serverimageretrievalsystembasedmobileplatform.Inthesystem,work.Thentheserversearchestheimageinthedatabaseandsendstheresultstotheclients.Thesystemfulfillsthefunctionofimageretrievalthroughtakingapicture.Keywords:Imageretrieval,doublebitencoding,SphericalHashing,AndroidTypeofDissertation:AppliedBasicResearch