Sparse Volume Rendering using Hardware Ray Tracing and Block Walking

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1) 東京国際フォーラム(TIFF)のホールEでブース展示 13件
（2021年12月15日-16日 10:00-18:00/ 12月17日 10:00-16:00 JST）:
来場者は展示期間中、会場で実際に体験いただけます。

2) バーチャルプラットフォーム上でプレゼンテーション映像のオンデマンド配信 19件
（2021年12月6日-2022年3月11日）：
全発表者によるプレゼンテーション映像が、オンデマンド配信されます。

3) ライブデモンストレーションとQ＆Aセッション 19件
（2021年12月15日-17日）：
バーチャルプラットフォーム向けに、1件あたり60分のライブデモとQ&Aセッションがあります。スケジュールはこちらをご覧ください。
- 海外からの6件のライブセッションの様子は、TIFF会場ホールE内のリモートブースに生配信されます。
- TIFF会場ホールEにブース展示されている13件については、それぞれのセッション時間（1時間）のみ該当ブースをクローズします。
なお、本セッションの映像は、ライブ終了後にバーチャルプラットフォーム上でオンデマンド配信されます。

Description: This presents an approach consisting of a novel volume data structure, traversal algorithm, and density-encoding accelerating data visualization using ray-tracing hardware, improving average runtime under user-input defined access of volume.

Presenter(s):
Mehmet Oguz Derin, Morgenrot, Inc., Turkey
Takahiro Harada, Advanced Micro Devices, Inc. (AMD); Morgenrot, Inc., United States of America
Yusuke Takeda, Hokkaido University, Japan
Yasuhiro Iba, Hokkaido University, Japan

Oguz (Mehmet Oguz Derin, 𐱅𐰼𐰭𐰆𐰍𐰔) is a software data engineer working on processing and visualizing volumetric data at Morgenrot, Inc., and a W3C Invited Expert for GPU for the Web Working Group. His previous experience includes: translating a RISC-V course and textbook for Imagination Technologies, contributing a linguistic dataset for Universal Dependencies, building extensions in Unreal Engine Marketplace, freelancing for Virtual Reality startups, and developing indie mini-games for iOS and Android using Unity Engine and Unreal Engine.

Takahiro Harada is a researcher and the architect of a GPU global illumination renderer called Radeon ProRender at AMD. At the same time, he’s leading software development in Morgenrot, Inc. He developed Forward+ and GPU rigid body simulation solver, which is used as a base of the Bullet physics engine OpenCL implementation. Before joining AMD, he engaged in research and development on real-time physics simulation on PC and game consoles at Havok. Before coming to the industry, he was in academia as an assistant professor at the University of Tokyo, where he earned his Ph.D. in Engineering.

Yusuke Takeda is a postdoctoral fellow at the Department of Earth and Planetary Science, Hokkaido University. He also works as a researcher at The Hokkaido University Museum and The University Museum, The University of Tokyo. His current research interests are processing and visualization of large-size image sequence data acquired from various tomographic devices. He has also developed a multi-dimensional petrographic imaging system. His academic career started as a paleontologist focusing on ammonite fossils. He received his Ph.D. degree at the University of Tokyo in 2017.

Yasuhiro Iba is an associate professor at the Department of Earth and Planetary Sciences, Hokkaido University. His current research interest is the development of high-resolution tomography systems for paleobiology and astrobiology. He received his Ph.D. degree at the University of Tokyo in 2008.

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