手法を比較

	多言語意味セグメンテーション	インスタンスセグメンテーション
分野	深層学習	深層学習
系統	Machine learning	Machine learning
提唱年	2019–2022	2017
提唱者	Various (building on Long et al. 2015 FCN; multilingual extensions c. 2019–2022)	He, K., Gkioxari, G., Dollar, P., Girshick, R.
種類	Pixel-wise classification with cross-lingual features	Pixel-level detection and mask prediction
原典	Chen, L.-C., Zhu, Y., Papandreou, G., Schroff, F., & Adam, H. (2018). Encoder-Decoder with Atrous Separable Convolution for Semantic Image Segmentation. In Proceedings of ECCV 2018.	He, K., Gkioxari, G., Dollar, P., & Girshick, R. (2017). Mask R-CNN. Proceedings of the IEEE International Conference on Computer Vision (ICCV), 2961–2969.
別名	cross-lingual semantic segmentation, multilingual scene parsing, multilingual pixel-wise classification, ML-SegNet	instance-level segmentation, object instance segmentation, mask prediction, panoptic instance segmentation
関連	3	4
概要	Multilingual semantic segmentation is a pixel-level scene parsing approach that assigns a semantic class label to every pixel in an image while incorporating cross-lingual capabilities — enabling a single model to recognise scene-text elements, annotations, or training signals drawn from multiple languages. It combines deep encoder-decoder architectures with multilingual language representations, making it applicable to documents, street signs, natural scene images, and medical imagery across diverse linguistic contexts.	Instance segmentation is a computer vision task that simultaneously detects every distinct object in an image and produces a precise pixel-level mask for each individual object instance. Unlike semantic segmentation, which labels every pixel with a class, instance segmentation distinguishes between separate objects of the same class, enabling fine-grained spatial understanding.