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CERVI: collaborative editing of raster and vector images.

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Title: CERVI: collaborative editing of raster and vector images.
Authors: Bath, Ulrike1 (AUTHOR), Shekhar, Sumit1 (AUTHOR) sumit.shekhar@hpi.uni-potsdam.de, Egbert, Julian1 (AUTHOR), Schmidt, Julian1 (AUTHOR), Semmo, Amir2 (AUTHOR), Döllner, Jürgen1 (AUTHOR), Trapp, Matthias1 (AUTHOR)
Source: Visual Computer. Dec2022, Vol. 38 Issue 12, p4057-4070. 14p.
Subjects: Bit-mapped graphics, Editing, Synchronization, Image processing
Abstract: Various web-based image-editing tools and web-based collaborative tools exist in isolation. Research focusing to bridge the gap between these two domains is sparse. We respond to the above and develop prototype groupware for real-time collaborative editing of raster and vector images in a web browser. To better understand the requirements, we conduct a preliminary user study and establish communication and synchronization as key elements. The existing groupware for text documents or presentations handles the above through well-established techniques. However, those cannot be extended as it is for raster or vector graphics manipulation. To this end, we develop a document model that is maintained by a server and is delivered and synchronized to multiple clients. Our prototypical implementation is based on a scalable client–server architecture: using WebGL for interactive browser-based rendering and WebSocket connections to maintain synchronization. We evaluate our work qualitatively through a post-deployment user study for three different scenarios. For quantitative evaluation, we perform a thorough performance measure on both client and server side, thereby identifying design recommendations for future concurrent image-editing software(s). [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Various web-based image-editing tools and web-based collaborative tools exist in isolation. Research focusing to bridge the gap between these two domains is sparse. We respond to the above and develop prototype groupware for real-time collaborative editing of raster and vector images in a web browser. To better understand the requirements, we conduct a preliminary user study and establish communication and synchronization as key elements. The existing groupware for text documents or presentations handles the above through well-established techniques. However, those cannot be extended as it is for raster or vector graphics manipulation. To this end, we develop a document model that is maintained by a server and is delivered and synchronized to multiple clients. Our prototypical implementation is based on a scalable client–server architecture: using WebGL for interactive browser-based rendering and WebSocket connections to maintain synchronization. We evaluate our work qualitatively through a post-deployment user study for three different scenarios. For quantitative evaluation, we perform a thorough performance measure on both client and server side, thereby identifying design recommendations for future concurrent image-editing software(s). [ABSTRACT FROM AUTHOR]
ISSN:01782789
DOI:10.1007/s00371-022-02522-1