Improve image segmentation by identifying and relabeling out-of-candidate pixels with OCR

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Improve image segmentation by identifying and relabeling out-of-candidate pixels with OCR

Out-of-Candidate Rectification for Weakly Supervised Semantic Segmentation
arXiv paper abstract https://arxiv.org/abs/2211.12268
arXiv PDF paper https://arxiv.org/pdf/2211.12268.pdf

Weakly supervised semantic segmentation is typically inspired by class activation maps, which serve as pseudo masks with class-discriminative regions highlighted.

… existing methods still commonly suffer from the unsolicited Out-of-Candidate (OC) error predictions that not belongs to the label candidates, which could be avoidable since the contradiction with image-level class tags is easy to be detected.

… develop a group ranking-based Out-of-Candidate Rectification (OCR) mechanism in a plug-and-play fashion.

Firstly, … adaptively split the semantic categories into In-Candidate (IC) and OC groups for each OC pixel according to their prior annotation correlation and posterior prediction correlation.

Then, … derive a differentiable rectification loss to force OC pixels to shift to the IC group.

… OCR … can achieve remarkable performance gains on both Pascal VOC … and MS COCO … datasets with negligible extra training overhead …

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AI News Clips by Morris Lee: News to help your R&D

Written by AI News Clips by Morris Lee: News to help your R&D

A computer vision consultant in artificial intelligence and related hitech technologies 37+ years. Am innovator with 66+ patents and ready to help a firm's R&D.

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