Sift refers to the straining action of a sifter or sieve. Sift or SIFT may also refer to: Scale-invariant feature transform, an algorithm in computer vision to detect and describe local features in images Selected-ion flow tube, a technique used for mass spectrometry Shanghai Institute of Foreign Trade, a public university in Shanghai, China Summary of Information on Film and Television, a database of the British Film Institute National Library Summer Institute for Future Teachers, a residential summer program at Eastern Connecticut State University SIFT (software), a digital forensics appliance See also Sieve (disambiguation), for the word "sift" Sifted (formerly VeriShip), an American logistics company