Optimization of Color-based Foreground / Background Segmentation for Outdoor Scenes

Author(s):  
Louis St-Laurent ◽  
Donald Prévost ◽  
Xavier Maldague
2012 ◽  
Vol 3 (2) ◽  
pp. 253-255
Author(s):  
Raman Brar

Image segmentation plays a vital role in several medical imaging programs by assisting the delineation of physiological structures along with other parts. The objective of this research work is to segmentize human lung MRI (Medical resonance Imaging) images for early detection of cancer.Watershed Transform Technique is implemented as the Segmentation method in this work. Some comparative experiments using both directly applied watershed algorithm and after marking foreground and computed background segmentation methods show the improved lung segmentation accuracy in some image cases.


1999 ◽  
Author(s):  
Martin A. Fischler ◽  
Robert C. Bolles
Keyword(s):  

2021 ◽  
pp. 1-1
Author(s):  
Zhi Zeng ◽  
Ting Wang ◽  
Fulei Ma ◽  
Liang Zhang ◽  
Peiyi Shen ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sandro L. Wiesmann ◽  
Laurent Caplette ◽  
Verena Willenbockel ◽  
Frédéric Gosselin ◽  
Melissa L.-H. Võ

AbstractHuman observers can quickly and accurately categorize scenes. This remarkable ability is related to the usage of information at different spatial frequencies (SFs) following a coarse-to-fine pattern: Low SFs, conveying coarse layout information, are thought to be used earlier than high SFs, representing more fine-grained information. Alternatives to this pattern have rarely been considered. Here, we probed all possible SF usage strategies randomly with high resolution in both the SF and time dimensions at two categorization levels. We show that correct basic-level categorizations of indoor scenes are linked to the sampling of relatively high SFs, whereas correct outdoor scene categorizations are predicted by an early use of high SFs and a later use of low SFs (fine-to-coarse pattern of SF usage). Superordinate-level categorizations (indoor vs. outdoor scenes) rely on lower SFs early on, followed by a shift to higher SFs and a subsequent shift back to lower SFs in late stages. In summary, our results show no consistent pattern of SF usage across tasks and only partially replicate the diagnostic SFs found in previous studies. We therefore propose that SF sampling strategies of observers differ with varying stimulus and task characteristics, thus favouring the notion of flexible SF usage.


Author(s):  
Maryam Hamad ◽  
Caroline Conti ◽  
Ana Maria de Almeida ◽  
Paulo Nunes ◽  
Luis Ducla Soares

2006 ◽  
Author(s):  
Citrus ◽  
Fruit size ◽  
Machine vision ◽  
Watershed transform ◽  
Yield mapping

2016 ◽  
Vol 96 ◽  
pp. 762-771 ◽  
Author(s):  
Margarita Favorskaya ◽  
Anna Pyataeva ◽  
Aleksei Popov

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