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Integrative Few-Shot Learning for Classification and Segmentation

2022-03-29CVPR 2022Code Available1· sign in to hype

Dahyun Kang, Minsu Cho

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Abstract

We introduce the integrative task of few-shot classification and segmentation (FS-CS) that aims to both classify and segment target objects in a query image when the target classes are given with a few examples. This task combines two conventional few-shot learning problems, few-shot classification and segmentation. FS-CS generalizes them to more realistic episodes with arbitrary image pairs, where each target class may or may not be present in the query. To address the task, we propose the integrative few-shot learning (iFSL) framework for FS-CS, which trains a learner to construct class-wise foreground maps for multi-label classification and pixel-wise segmentation. We also develop an effective iFSL model, attentive squeeze network (ASNet), that leverages deep semantic correlation and global self-attention to produce reliable foreground maps. In experiments, the proposed method shows promising performance on the FS-CS task and also achieves the state of the art on standard few-shot segmentation benchmarks.

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Benchmark Results

DatasetModelMetricClaimedVerifiedStatus
COCO-20i (1-shot)ASNetMean IoU43.1Unverified
COCO-20i (5-shot)ASNetMean IoU49.5Unverified
PASCAL-5i (1-Shot)ASNetMean IoU66.9Unverified
PASCAL-5i (5-Shot)ASNetMean IoU71.1Unverified

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