השוואת שיטות

	פילוח מופעים מפוקח-בקושי	סגמנטציה סמנטית מפוקחת באופן חלש
תחום	למידה עמוקה	למידה עמוקה
משפחה	Machine learning	Machine learning
שנת המקור	2015–2019	2014–2016
הוגה השיטה	Multiple contributors (e.g., Hsu et al., Khoreva et al.)	Multiple contributors; Class Activation Mapping (Zhou et al., 2016) is foundational
סוג	Weakly supervised deep learning for pixel-wise instance delineation	Pixel-level classification with image-level or coarse supervision
מקור מכונן	Hsu, C.-C., Hsu, K.-J., Tsai, C.-C., Lin, Y.-Y., & Chuang, Y.-Y. (2019). Weakly supervised instance segmentation using the bounding box tightness prior. Advances in Neural Information Processing Systems (NeurIPS), 32.	Zhou, B., Khosla, A., Lapedriza, A., Oliva, A., & Torralba, A. (2016). Learning Deep Features for Discriminative Localization. In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), pp. 2921–2929.
כינויים	WSIS, weakly-supervised mask prediction, weak-label instance segmentation, box-supervised instance segmentation	WSSS, weak-label segmentation, image-level supervised segmentation, weakly-labeled pixel classification
קשורות	6	4
תקציר	Weakly supervised instance segmentation trains deep networks to delineate individual object instances at pixel level using only cheap, incomplete annotations — such as bounding boxes, image-level labels, or point clicks — rather than costly full pixel-wise masks. It dramatically reduces annotation effort while still producing instance-level masks for each object in an image.	Weakly Supervised Semantic Segmentation (WSSS) trains pixel-level scene parsers using only cheap, coarse annotations — typically image-level class tags — instead of costly dense pixel masks. By generating proxy pseudo-labels from a classification network (via Class Activation Maps or similar localisation cues) and iteratively refining them, WSSS brings full-supervision accuracy within reach at a fraction of the annotation cost.