preservation of 3 d objects of buildings

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Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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Durable Architectural Knowledge

PRESERVATION OF 3D OBJECTS OF BUILDINGS

Devinder Thapa, Luleå University of Technology

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CHALLENGES & GOALS

ChallengesHow to support the emerging lifecycle of digital data in the building & architecture

profession

GoalsTo develop sustainable methods and

practices for architects, building operators or urban planners

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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PARTNERS

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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WORK AREAS SUB- CHALLENGES

Geometric enrichment

Sematic enrichment

Long term preservation

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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GEOMETRIC ENRICHMENT

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

• Data synchronization: two different representations of the same building model can be synchronized using a semi-automated approach

• Difference analysis: deviations between as-planned and as-built state can be highlighted

• Semi-automated indexing: enhancing unstructured point clouds with higher level semantics

• Access copy generation: light-weight representations of gigabyte big point clouds allow easy handling including access via network and visualization on consumer hardware

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GEOMETRIC ENRICHMENT

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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SEMANTIC ENRICHMENT

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

• Architectural models (2D/3D) and BIM lack semantics, context and are ambiguous.

• Semantic context includes history, material, legal aspects,environment & surrounding infrastructureWeb of data yields lots of relevant information

• Semantic enrichment deals with enriching BIM with related contextual Web data & vocabularies

• Evolution of Web data is inherent problem (crawling and preservation)

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SEMANTIC ENRICHMENT INDEXING

Indexed point cloudDevinder Thapa, Luleå University of Technology

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SEMANTIC ENRICHMENT

Example: Social & Semantic Web enrichment

Devinder Thapa, Luleå University of Technology

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PRESERVATION

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

• Ensures that the information is available and useable for the designated community

It addresses the aspects of bit preservation, logical preservation and semantic preservation

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PRESERVATION

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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OUTCOME/RESULTS

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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PROTOTYPE

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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DURAARK WORKBENCH

Source (http://workbench.duraark.eu)Devinder Thapa, Luleå University of Technology

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DURAARK WORKBENCH

Source (http://workbench.duraark.eu)Devinder Thapa, Luleå University of Technology

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DATA SYNCHRONIZATION

BIM ModelDevinder Thapa, Luleå University of Technology

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DATA SYNCHRONIZATION

Point Cloud ScanDevinder Thapa, Luleå University of Technology

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DIFFERENCE ANALYSIS

Synchronized representationDevinder Thapa, Luleå University of Technology

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SEMI-AUTOMATED INDEXING

Unstructured point cloudDevinder Thapa, Luleå University of Technology

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SEMI-AUTOMATED INDEXING

Indexed point cloudDevinder Thapa, Luleå University of Technology

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SEMI-AUTOMATED INDEXING

Access copyDevinder Thapa, Luleå University of Technology

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SEMANTIC DIGITAL ARCHIVAL

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

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SEMANTIC DIGITAL ARCHIVAL

Devinder Thapa, Luleå University of Technology

Source: http://data-observatory.org/lod-profiles/profile-explorer/

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SEMANTIC DIGITAL OBSERVATORY

Source: http://data-observatory.org/lod-profiles/profile-explorer/

Devinder Thapa, Luleå University of Technology

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CONCLUSIONS/OUTLOOK

Durable Architectural KnowledgeDevinder Thapa, Luleå University of Technology

• First integrated prototype and DURAARK workbench (including prototypes for geometric enrichment, semantic enrichment, preservation/ingestion)=> D2.4

• Semantic enrichment services and initial Semantic Digital Archive and Semantic Observatory => D3.3

• Geometric enrichment and point cloud registration components=> (D4.1, D5.1)

• More on http://www.duraark.eu/deliverables and http://www.duraark.eu/publication

• Website: www.duraark.eu, Contact: contact@duraark.eu • Facebook: facebook.com/DURAARK, Twitter: twitter.com/duraark