手法を比較

	セマンティックセグメンテーション	画像分類
分野	深層学習	深層学習
系統	Machine learning	Machine learning
提唱年	2015	2012 (deep CNN era); conceptual roots 1989 (LeCun)
提唱者	Long, J., Shelhamer, E., & Darrell, T.	Krizhevsky, A.; Sutskever, I.; Hinton, G. E.
種類	Dense prediction / pixel-wise classification	Supervised classification task
原典	Long, J., Shelhamer, E., & Darrell, T. (2015). Fully convolutional networks for semantic segmentation. In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), pp. 3431–3440.	Krizhevsky, A., Sutskever, I., & Hinton, G. E. (2012). ImageNet classification with deep convolutional neural networks. Advances in Neural Information Processing Systems (NeurIPS), 25, 1097–1105.
別名	pixel-wise classification, scene parsing, dense labeling, semantic scene segmentation	visual classification, image recognition, CNN-based classification, visual categorization
関連	5	5
概要	Semantic segmentation assigns a class label to every pixel in an image, producing a dense, category-annotated map of the scene. Unlike object detection, which draws bounding boxes, it delineates the exact spatial extent of each class, making it indispensable in medical imaging, autonomous driving, satellite analysis, and any task where precise region boundaries matter.	Image classification is the task of assigning a single semantic label to an entire image from a fixed set of categories. Modern approaches rely on deep convolutional neural networks (CNNs) or Vision Transformers (ViTs) trained end-to-end on large labeled datasets such as ImageNet, achieving superhuman accuracy on many benchmarks and underpinning applications from medical imaging to autonomous vehicles.