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Bounded irregular pyramid: a new structure for color image segmentation
2004
Pattern Recognition
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Hence, the size of the irregular pyramid is bounded. Segmentation is performed by rearranging the set of links among pyramid nodes. ...
This paper presents a new segmentation technique for color images. It relies on building an irregular pyramid into a regular one, presenting only nodes associated to homogeneous color regions. ...
Valid nodes are linked to homogeneous regions at the base. ...
doi:10.1016/j.patcog.2003.08.012
fatcat:uzhgtdmzmvfkdcpzcvvyningo4
Co-parent selection for fast region merging in pyramidal image segmentation
2010
2010 2nd International Conference on Image Processing Theory, Tools and Applications
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Our algorithm is fast (produces segmentations within seconds), results in the correct segmentation of elongated and large regions, very simple compared to plethora of existing algorithms, and appears competitive ...
In this paper, we also introduce the concept of a co-parent node for possible region merging at the end of each iteration. ...
We compared our co-parent link shifting (CPLS) algorithm to the link shifting (LS) segmentation algorithm proposed by [9] . ...
doi:10.1109/ipta.2010.5586811
dblp:conf/ipta/StojmenovicMN10
fatcat:bcufjzudvvccleil26hzw6rywm
Colour and texture based pyramidal image segmentation
2010
2010 International Conference on Audio, Language and Image Processing
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The input image size is no longer constrained as in [BHR], [SSN] and other similar regular pyramid based approaches due to a modification of the pyramid construction rule. ...
Our algorithm is fast (produces segmentations within seconds), results in the correct segmentation of elongated and large regions, very simple compared to plethora of existing algorithms, and appears competitive ...
shift variability and handling elongated objects. ...
doi:10.1109/icalip.2010.5685096
fatcat:7rpd337agrec3g4mdk5kahndcq
Pyramidal segmentation using higher-order local auto-correlations and its applications to Landsat forestry data
2010
2010 IEEE International Conference on Image Processing
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Recently, a link shifting based pyramidal segmentation method was proposed to resolve existing problems with elongated regions. ...
The goal of image segmentation is to partition an image into regions that are internally homogeneous and heterogeneous with respect to neighbouring regions. ...
Pyramidal segmentation Algorithm LS (Link Shifting) [7] is inspired by the regular pyramid linked approach (PLA) [3] . ...
doi:10.1109/icip.2010.5654101
dblp:conf/icip/StojmenovicKO10
fatcat:7tzbnnsdsfcgvarbapkke4ziy4
Pyramid segmentation algorithms revisited
2006
Pattern Recognition
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Segmentation algorithms based on regular and irregular pyramids are described, together with the data structures and decimation procedures which encode and manage the information in the pyramid. ...
The main goal of this work is to compare pyramidal structures proposed to solve segmentation tasks. ...
Bertolino for their unselfish help. Special thanks are due to Dr. J. M. Jolion for his aid to implement the colour irregular pyramid and provides us the source code of the algorithm proposed in Ref. ...
doi:10.1016/j.patcog.2006.02.017
fatcat:f744w7onubh6ppz43r23vz2bkm
Curvilinear Image Regions Detection: Applications to Mobile Robotics
2010
EURASIP Journal on Advances in Signal Processing
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This paper proposes a novel approach for visual features detection, which is based on the presence of objects whose shape can be modelled using cylinders or generalized cylinders. ...
Our detector reliably finds the same curvilinear regions under different viewing conditions. ...
Firstly, the original image is segmented into homogeneous colour regions using a pyramid algorithm based on the Bounded Irregular Pyramid (BIP) [6] . ...
doi:10.1155/2011/145232
fatcat:2g4aw74q7vf7bllumy7jebjm4a
A Review on Graph Based Segmentation
2012
International Journal of Image Graphics and Signal Processing
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The major four categorizations we have employed for the purpose of review are: graph cut based methods, interactive methods, minimum spanning tree based methods and pyramid based methods. ...
In addition, the review highlights the need for creating a database for benchmarking intensity based algorithms, and the need for further research in graph based segmentation for automated real time applications ...
However, these types of pyramid solve the problems associated with the regular pyramids such as shift variance and inability to segment elongated objects. ...
doi:10.5815/ijigsp.2012.05.01
fatcat:wwguetls4nf67b2xoiu4xlktuu
Generalization of shifted fovea multiresolution geometries applied to object detection
[chapter]
1997
Lecture Notes in Computer Science
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Besides, we introduce the multiresolution data structure to manipulate and process this type of foveal geometries, as well as the results obtained after applying hierarchical algorithms for segmentation ...
The concept is based on increasing the degrees of freedom and the related number of configuration parameters and the application of a new shifting algorithm which allows a higher number of fixation points ...
The algorithm is based on the Multiresolution Pixel Linking algorithm for pyramidal structures given by Butt and Rosenfeld [6] [7] . ...
doi:10.1007/3-540-63508-4_158
fatcat:x52jjfdngbepld4a55vd42wbei
Hierarchical Hough transform based on pyramidal architecture
1992
Eleventh Annual International Phoenix Conference on Computers and Communication [1992 Conference Proceedings]
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In this paper a hierarchical Hough Transform (HT) based on pyramidal architecture is described, being a main component of the low-to-medium spatial vision subsystem for a mobile robot. ...
The scheme is very well suited for parallelkation. ...
Nevatia and Babu [24] linked edge elements based on proximity and orientation and approximated the linked elements by piecewise linear segments. ...
doi:10.1109/pccc.1992.200515
fatcat:fahbn6wtc5guzhlot55p5h5abu
Alpha-tree segmentation of human anatomical photographic imagery
2019
Proceedings of the 2nd International Conference on Applications of Intelligent Systems - APPIS '19
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The manual segmentation of such images and the subsequent labelling of regions is a very laborious task. ...
We use a morphological tree-based segmentation method, known as the alpha-tree, together with a Humoment thresholding mechanism in order to extract segments from a number of structures. ...
We propose an algorithm that is based on the alpha-tree combined with Hu moments for the segmentation of such images. ...
doi:10.1145/3309772.3309776
dblp:conf/appis/TaboneWGGA19
fatcat:j3bkywltwbexzffnoqnqkkizg4
Forensic Textile Fibre Matching by Multiresolution Planning and Colour Space Pattern Recognition
1988
Procedings of the Alvey Vision Conference 1988
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It is based on a mult{resolution image format and incorporates progressive plan refinement. ...
Colour is a key element in the discrimination and matching of textile fibres for forensic purposes. ...
The goal has shifted to the recognition of specific objects or regions where colour is the primary discriminatory feature, the objects or regions being otherwise similar. ...
doi:10.5244/c.2.35
dblp:conf/bmvc/McEwenW88
fatcat:u7l5nasinjadxfxhenyzpjwaim
Traveling Theta Waves along the Entire Septotemporal Axis of the Hippocampus
2012
Neuron
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We recorded theta oscillations along the entire extent of the septotemporal axis of the hippocampal CA1 pyramidal layer. ...
The majority of concurrently recorded units were phase-locked to the local field theta at all dorsoventral segments. ...
Distances are measured from the septal end of the CA1 pyramidal region (0 mm). ...
doi:10.1016/j.neuron.2012.07.015
pmid:22884325
pmcid:PMC3427387
fatcat:eqchnkpyyvaihbgcazjmbypbga
Man-made objects cuing in satellite imagery
2009
Signal Processing, Sensor Fusion, and Target Recognition XVIII
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We present a multi-scale framework for man-made structures cuing in satellite image regions. The approach is based on a hierarchical image segmentation followed by structural analysis. ...
The presented framework can be used as pre-scanning tool for wide area monitoring to quickly guide the further analysis to regions of interest. ...
They can be created using such approaches as watershed based segmentation (Vincent et aI, 1991 ) , and Mean Shift that is a kernel based density estimation technique (Fukunaga et aI, 1975 We emphasize ...
doi:10.1117/12.819083
fatcat:nfxtbueiwvegdbd6djwulkplyy
Image Matching based on Curvilinear Regions
[chapter]
2007
Vision Systems: Segmentation and Pattern Recognition
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However, regular pyramids can suffer several problems (Bister et al., 1990) : nonconnectivity of the obtained receptive fields, shift variance, or incapability to segment elongated objects. ...
Image segmentation based on the Bounded Irregular Pyramid In our approach, image segmentation is employed to obtain a global set of image regions. ...
The first nine chapters on segmentation deal with advanced algorithms and models, and various applications of segmentation in robot path planning, human face tracking, etc. ...
doi:10.5772/4959
fatcat:dccmjusz6zdd3axc5wce7l43he
Conformational changes in Lassa virus L protein associated with promoter binding and RNA synthesis activity
[article]
2021
bioRxiv
pre-print
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In this configuration, the full C-terminal region of the L protein, including the putative cap-binding domain, is highly ordered. ...
The structural data are complemented by in vitro and cell-based studies testing a broad range of L protein mutants to probe functional relevance. ...
Acknowledgements We acknowledge the European Synchrotron Radiation Facility for provision of beam time on CM01 and we would like to thank Daouda A.K. Traore for assistance. ...
doi:10.1101/2021.06.24.449696
fatcat:fndb527tnnavzeyfq35jukri7u
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