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Shape Measure for Identifying Perceptually Informative Parts of 3D Objects
2006
Third International Symposium on 3D Data Processing, Visualization, and Transmission (3DPVT'06)
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Using a part decomposition algorithm for digitized 3D objects, represented as triangle meshes, we apply our shape measure to transform the low level mesh representation into a perceptually informative ...
We propose a mathematical approach for quantifying shape complexity of 3D surfaces based on perceptual principles of visual saliency. ...
The higher magnitude of the shape measure corresponds to the most informative part of the object. ...
doi:10.1109/3dpvt.2006.127
dblp:conf/3dpvt/SukumarPGKA06
fatcat:4xqcoyx3azhwvfofjvdvnwquk4
Towards understanding what makes 3D objects appear simple or complex
2008
2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
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Towards the goal of understanding why the geometry of some 3D objects appear more complex than others, we conducted a psychophysical study and identified contributing attributes. ...
With that knowledge, we present a method of quantifying complexity and show that the informational aspect of Shannon's theory agrees with the human notion of shape complexity. ...
Acknowledgements The authors thank all the participants for their invaluable time in taking up our psychophysical survey and permitting us to publish the results. ...
doi:10.1109/cvprw.2008.4562975
dblp:conf/cvpr/SukumarPKA08
fatcat:ztiavyj4w5gmvew742n567xrpq
The visual perception of 3D shape
2004
Trends in Cognitive Sciences
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A fundamental problem for the visual perception of 3D shape is that patterns of optical stimulation are inherently ambiguous. ...
Indeed, were it not for our own perceptual experiences, it would be tempting to conclude that the visual perception of 3D shape is a mathematical impossibility, because the properties of optical stimulation ...
Acknowledgements The preparation of this manuscript was supported by grants from NIH (R01-Ey12432) and NSF (BCS-0079277). ...
doi:10.1016/j.tics.2004.01.006
pmid:15301751
fatcat:edq5rcn32jfandcacyxb2lx3h4
Natural Selection and Shape Perception
[chapter]
2013
Shape Perception in Human and Computer Vision
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Our visual world has three spatial dimensions, a temporal dimension, and contains 3D objects with shapes, colors, textures and motions. ...
In other words, they standardly assume that the language of our visual representations is the correct language for describing objective reality. ...
Acknowledgments For helpful discussions, we thank Jacob Feldman, Pete Foley, Brian Marion, Justin Mark, Darren Peshek, and Kyle Stevens. ...
doi:10.1007/978-1-4471-5195-1_12
fatcat:4zmaesr36nehhe73tljw4swdyu
Stereo viewing modulates three-dimensional shape processing during object recognition: A high-density ERP study
2018
Journal of Experimental Psychology: Human Perception and Performance
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The results show that image classification is modulated by stereo information about the local part, and global 3D spatial configuration of object shape. ...
The findings shed new light on the role of stereo information in the visual perception and recognition of 3D object shape. ...
The results show that image classification is modulated by stereo information about the local part, and global 3D spatial configuration of object shape. ...
doi:10.1037/xhp0000444
pmid:29022728
pmcid:PMC5896504
fatcat:5zeeqo4o6nh45fn6mx5ik4pv5u
Visual and tactile sensory systems share common features in object recognition
2021
eNeuro
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This study examined how 3D shape features of objects form two congruent and interchangeable visual and tactile perceptual spaces in healthy male and female participants. ...
We then extracted a series of 3D shape features to investigate how visual and tactile exploration can lead to the correct identification of the relationships between objects. ...
The Euclidean distance between the pairs 207 of objects for each shape feature was calculated to generate the computational dissimilarity measures. 208
3D shape features extraction and selection In line ...
doi:10.1523/eneuro.0101-21.2021
pmid:34544756
pmcid:PMC8493885
fatcat:r3g366gghzeermtwc5cnxxzsc4
Object feature validation using visual and haptic similarity ratings
2006
ACM Transactions on Applied Perception
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measures of object properties. ...
Two resolutions of 2D and 3D object data were used for these computations in order to test for scale dependencies. ...
For each object, we counted the number of vertices populating each sector, thereby creating a 3D shape histogram for that object. ...
doi:10.1145/1166087.1166093
fatcat:erf7trto5veuvoeyh4aaniwbzm
Early differential sensitivity of evoked-potentials to local and global shape during the perception of three-dimensional objects
2016
Neuropsychologia
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Event-related potentials (ERPs) were used to measure perceptual sensitivity to 3D shape differences in terms of local part structure and global shape configurationbased on predictions derived from hierarchical ...
The results suggest that the perception of 3D object shape involves parallel processing of information at local and global scales. ...
ERPs were used to measure online perceptual sensitivity to 3D shape differences in terms of local part structure and global shape configuration. ...
doi:10.1016/j.neuropsychologia.2016.07.006
pmid:27396674
fatcat:ybejtqb4gzbrximaxgwsbn7tfm
Visual mapping of body image disturbance in anorexia nervosa reveals objective markers of illness severity
2021
Scientific Reports
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Physical measurements of corresponding body parts, in cm, were collected for reference. ...
Several implicit measures were significantly associated with illness severity, suggesting potential utility for identifying objective BID markers. ...
Discussion The current study tested the feasibility of a novel digital tool for assessing multidimensional BID characteristics, including objective measurements of perceptual disturbance for body part ...
doi:10.1038/s41598-021-90739-w
pmid:34112818
fatcat:chqv3escengjdayurynvyietp4
Diagramming information structures using 3D perceptual primitives
2003
ACM Transactions on Computer-Human Interaction
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This is designed to specifically test the importance of using 3D shaded primitives. ...
Implications for the design of diagrams are discussed. ...
However, there may be ways of mapping information to 3D solid components that provides a better match to human perceptual mechanisms. ...
doi:10.1145/606658.606659
fatcat:hvqlyrxvzbhjxkcnyery2u2efi
Combining Shape and Color for Retrieval of 3D Models
2009
2009 Fifth International Joint Conference on INC, IMS and IDC
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Current research on the retrieval systems for 3D models focuses on using the shape of the models to facilitate search and retrieval. ...
The research involves the study and adoption of an existing 2D color-based similarity measure for 3D models. The analysis of the results is based on the precision and recall of both approaches. ...
For the models that have more than one color, it was observed that the colors were used to identify different parts of the model. ...
doi:10.1109/ncm.2009.140
dblp:conf/ncm/RuizCMH09
fatcat:tczz4vqbcne2viwp7hezegxpam
A similarity-based approach to perceptual feature validation
2005
Proceedings of the 2nd symposium on Appied perception in graphics and visualization - APGV '05
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Similarity measures for a set of three-dimensional (3D) objects varying in shape and texture were gathered from humans in two modalities (vision and touch) and derived from a set of standard 2D and 3D ...
measures of object properties. ...
, and Karin Bierig for helping to run the haptic experiments. ...
doi:10.1145/1080402.1080413
dblp:conf/apgv/CookeSWB05
fatcat:sj4jhdcmbva27aoxopd5sb5eua
3D Mesh decomposition using Reeb graphs
2009
Image and Vision Computing
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Decomposition of complex 3D objects into simpler sub-parts is a challenging research subject with relevant outcomes for several application contexts. ...
In this paper, an approach is proposed for decomposition of 3D objects based on Reeb-graphs. ...
The 3D Studio Max 1 software was used to allow users to easily identify relevant parts of 3D shapes. ...
doi:10.1016/j.imavis.2009.02.004
fatcat:vd7dbuablzfjxlw2wf6y32esqm
Visual spatial learning of complex object morphologies through the interaction with virtual and real-world data
2010
Design Studies
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Conceptual design relies on extensive manipulation of morphological properties of real or virtual objects.This study investigates the nature of the perceptual information that could be retrieved from different ...
The results reveal a considerable performance advantage of digital 3D model exploration compared with real-world 3D object manipulation in the expert population.The results are discussed in terms of the ...
They were informed that they would have to draw certain parts of the objects from memory, but not told which parts. ...
doi:10.1016/j.destud.2010.03.001
fatcat:xmfle666ovecxid2yt4ephb2uq
Effects of stereoscopic disparity on early ERP components during classification of three-dimensional objects
2018
Quarterly Journal of Experimental Psychology
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Effects of stereoscopic disparity on early ERP components during classification of three-dimensional objects. ...
Peer reviewed version Cyswllt i'r cyhoeddiad / Link to publication Dyfyniad o'r fersiwn a gyhoeddwyd / Citation for published version (APA): Pegna, A., Darque, A., Roberts, M., & Leek, C. (2018). ...
However, it remains less clear whether stereo 14 information modulates high-level perceptual processing of 3D object shape. 15 In principle, stereo disparity might facilitate perceptual analyses of ...
doi:10.1080/17470218.2017.1333129
pmid:28524772
fatcat:u7rb7wzljzg2vfwdkcxl7m2yhi
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