# Background Noise Reduction of Attention Map for Weakly Supervised Semantic Segmentation

Source: [Background Noise Reduction of Attention Map for Weakly Supervised Semantic Segmentation](<https://www.sota2.com/research/paper/68fa72cf1e209131cea58a0e>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-26T02:34:49.549Z

Authors: Izumi Fujimori, Masaki Oono, Masami Shishibori

Published: 2024-04-04T11:53:37.000Z

## Abstract

In weakly-supervised semantic segmentation (WSSS) using only image-level class labels, a problem with CNN-based Class Activation Maps (CAM) is that they tend to activate the most discriminative local regions of objects. On the other hand, methods based on Transformers learn global features but suffer from the issue of background noise contamination. This paper focuses on addressing the issue of background noise in attention weights within the existing WSSS method based on Conformer, known as TransCAM. The proposed method successfully reduces background noise, leading to improved accuracy of pseudo labels. Experimental results demonstrate that our model achieves segmentation performance of 70.5% on the PASCAL VOC 2012 validation data, 71.1% on the test data, and 45.9% on MS COCO 2014 data, outperforming TransCAM in terms of segmentation performance.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2404.03394>)

[PDF](<https://arxiv.org/pdf/2404.03394.pdf>)