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Using Watershed Transform for Vision-based Two-Hand Occlusion in an Interactive AR Environment.

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Title: Using Watershed Transform for Vision-based Two-Hand Occlusion in an Interactive AR Environment.
Authors: Peng Peng Leim1 pengpeng_leim89@hotmail.com, Guat Yew Tan1 gytan@cs.usm.my, Kah Pin Ng1 nkp10_mah017p@student.usm.my, Miin Huey Ang1 mathamh@cs.usm.my
Source: Annual International Conference on Information Technology & Applications. 2014, p190-194. 5p.
Subjects: Augmented reality, Interactive model (Communication), Interactive computer systems, Interaction design (Human-computer interaction), Virtual design, Virtual communications
Abstract: To achieve a natural interaction in augmented reality environment, we have suggested to use markerless vision-based two-handed gestures for the interaction; with an outstretched hand and a pointing hand used as virtual object registration plane and pointing device respectively. However, two-handed interaction always causes mutual occlusion which jeopardizes the hand gesture recognition. In this paper, we present a solution for two-hand occlusion by using watershed transform. The main idea is to start from a two-hand occlusion image in binary format, then form a grey-scale image based on the distance of each non-object pixel to object pixel. The watershed algorithm is applied to the negation of the grey scaled image to form watershed lines which separates the two hands. Fingertips are then identified and each hand is recognized based on number of fingertips on each hand. The outstretched hand is assumed to contain 5 fingertips and the pointing device contains less than 5 fingertips. An example of applying our result in hand and virtual object interaction is displayed at the end of the paper. [ABSTRACT FROM AUTHOR]
Copyright of Annual International Conference on Information Technology & Applications is the property of Global Science & Technology Forum and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Using Watershed Transform for Vision-based Two-Hand Occlusion in an Interactive AR Environment.
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  Data: <searchLink fieldCode="AR" term="%22Peng+Peng+Leim%22">Peng Peng Leim</searchLink><relatesTo>1</relatesTo><i> pengpeng_leim89@hotmail.com</i><br /><searchLink fieldCode="AR" term="%22Guat+Yew+Tan%22">Guat Yew Tan</searchLink><relatesTo>1</relatesTo><i> gytan@cs.usm.my</i><br /><searchLink fieldCode="AR" term="%22Kah+Pin+Ng%22">Kah Pin Ng</searchLink><relatesTo>1</relatesTo><i> nkp10_mah017p@student.usm.my</i><br /><searchLink fieldCode="AR" term="%22Miin+Huey+Ang%22">Miin Huey Ang</searchLink><relatesTo>1</relatesTo><i> mathamh@cs.usm.my</i>
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  Data: <searchLink fieldCode="JN" term="%22Annual+International+Conference+on+Information+Technology+%26+Applications%22">Annual International Conference on Information Technology & Applications</searchLink>. 2014, p190-194. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Augmented+reality%22">Augmented reality</searchLink><br /><searchLink fieldCode="DE" term="%22Interactive+model+%28Communication%29%22">Interactive model (Communication)</searchLink><br /><searchLink fieldCode="DE" term="%22Interactive+computer+systems%22">Interactive computer systems</searchLink><br /><searchLink fieldCode="DE" term="%22Interaction+design+%28Human-computer+interaction%29%22">Interaction design (Human-computer interaction)</searchLink><br /><searchLink fieldCode="DE" term="%22Virtual+design%22">Virtual design</searchLink><br /><searchLink fieldCode="DE" term="%22Virtual+communications%22">Virtual communications</searchLink>
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  Data: To achieve a natural interaction in augmented reality environment, we have suggested to use markerless vision-based two-handed gestures for the interaction; with an outstretched hand and a pointing hand used as virtual object registration plane and pointing device respectively. However, two-handed interaction always causes mutual occlusion which jeopardizes the hand gesture recognition. In this paper, we present a solution for two-hand occlusion by using watershed transform. The main idea is to start from a two-hand occlusion image in binary format, then form a grey-scale image based on the distance of each non-object pixel to object pixel. The watershed algorithm is applied to the negation of the grey scaled image to form watershed lines which separates the two hands. Fingertips are then identified and each hand is recognized based on number of fingertips on each hand. The outstretched hand is assumed to contain 5 fingertips and the pointing device contains less than 5 fingertips. An example of applying our result in hand and virtual object interaction is displayed at the end of the paper. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Annual International Conference on Information Technology & Applications is the property of Global Science & Technology Forum and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Code: eng
        Text: English
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        PageCount: 5
        StartPage: 190
    Subjects:
      – SubjectFull: Augmented reality
        Type: general
      – SubjectFull: Interactive model (Communication)
        Type: general
      – SubjectFull: Interactive computer systems
        Type: general
      – SubjectFull: Interaction design (Human-computer interaction)
        Type: general
      – SubjectFull: Virtual design
        Type: general
      – SubjectFull: Virtual communications
        Type: general
    Titles:
      – TitleFull: Using Watershed Transform for Vision-based Two-Hand Occlusion in an Interactive AR Environment.
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          Name:
            NameFull: Peng Peng Leim
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            NameFull: Guat Yew Tan
      – PersonEntity:
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            NameFull: Kah Pin Ng
      – PersonEntity:
          Name:
            NameFull: Miin Huey Ang
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          Dates:
            – D: 01
              M: 01
              Text: 2014
              Type: published
              Y: 2014
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            – TitleFull: Annual International Conference on Information Technology & Applications
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