Título: | ASPECTS ON VOLUME RENDERING OF SEISMIC DATA | ||||||||||||
Autor: |
ANDRE LUIS BARRETO GERHARDT |
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Colaborador(es): |
MARCELO GATTASS - Orientador LUIZ FERNANDO CAMPOS RAMOS MARTHA - Coorientador |
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Catalogação: | 23/ABR/2001 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1523&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1523&idi=2 [es] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1523&idi=4 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.1523 | ||||||||||||
Resumo: | |||||||||||||
Volume rendering is an emerging technique in the field of
seismic data visualization. Only recently commercial
software has been made available to the oil industry.
Volume rendering is particulary useful for understanding
structural and stratigrafhic features present in seismic
data in a more natural way than using the tradicional
method of interpreting over a set of 2D slices.
This work adresses several topics related to the nature of
seismic data and to how they interrelate with techniques
commonly used in volume redering.Special attention is given
to three topics: quantization of acquired seismic
amplitudes to 8-bit representations, segmentattion
techiniques to highlight seismic events and use of
illumination models.The quantatization effects are analyzed
by appying different color quantization algorithms adapted
to handle seiosmic amplitudes. Uniform quantization is
selected due to its simplicity and efficiency.
The segmentation of seismic events is studie theorecally
and verified experimentally.Several characteristics of
seismic data that prevent segmentation frombeing successful
are discussed.
The significance of shading obtained by applying common
illumination models is studie theoretically. The estimation
of normal vectors directly from amplitude values is shown
to be inadequate.
Finally, several basic requisites to be fulfilled by
seismic data volume visualization algorithms are
identified.
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