The invention discloses a scene imagination retrieval method, device and
system, a storage medium and a program product, and the method comprises the following steps: S1, collecting an electroencephalogram
signal of a
human body when the
human body imagines a specific scene; s2, the electroencephalogram signals are preprocessed, and continuous electroencephalogram
signal fragments in a short time window are obtained; s3, encoding and fusing the electroencephalogram
signal segments to obtain high-dimensional feature vectors, and identifying and encoding retrieval targets in a retrieval target
library to obtain a plurality of target feature vectors; s4, performing cross-
modal projection on the high-dimensional
feature vector and the
multiple target feature vectors, and mapping the high-dimensional
feature vector and the
multiple target feature vectors to a unified
semantic space; s5, calculating the similarity between the high-dimensional
feature vector and the target feature vector; and S6, performing retrieval target classification based on the similarity, and outputting a
retrieval result in the retrieval category with the highest similarity according to the matching confidence. The problems that in retrieval in the prior art, retrieval operation is inconvenient, and implicit retrieval is lacked are solved.