Image retrieval using unsupervised prompt learning and regional attention

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Bo-Jian Zhang, Guanghai Liu, Zuoyong Li

Published: 01 Jan 2024, Last Modified: 03 Nov 2025Expert Syst. Appl. 2024EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•An unsupervised prompt learning method is proposed to identify the target object.•Our method can capture important feature regions through four dimensions.•It can improve the diversity and discriminability of representation.•A general hybrid PCA-whitening (HPW) method is proposed to improve performance.