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Instantaneous foveated preview for progressive Monte Carlo rendering

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Computational Visual Media 2018年第3期4卷 267-276页

作者： Matias K. Koskela Kalle V. Immonen Timo T. Viitanen Pekka O. jaaskelainen Joonas I. Multanen Jarmo H. Takala Tampere University of Technology Tampere 33720Finland.

Progressive rendering, for example Monte Carlo rendering of 360° content for virtual reality headsets, is a time-consuming task. If the 3D artist notices an error while previewing the rendering, they must return to editing mode, make the required changes, and restart rendering. We propose the use of eye-tracking-based optimization to significantly speed up previewing of the artist＇s points of interest. The speed of the preview is further improved by sampling with a distribution that closely follows the experimentally measured visual acuity of the human eye, unlike the piecewise linear models used in previous work. In a comprehensive user study, the perceived eonvergence of our proposed method was 10 times faster than that of a conventional preview, and often appeared to be instantaneous. In addition, the participants rated the method to have only marginally more artifacts in areas where it had to start rendering from scratch, compared to conventional rendering methods that had already generated image content in those areas.

关键词： foveated rendering progressive renderingMonte Carlo rendering preview 360°content

维普期刊数据库

Optical　Associative　Memory　Based　on　Double　Phase　Conjugation　Using　Bi12TiO20　Photorefractive　Fi

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Chinese Journal of Lasers 1995年第3期B4卷 275-280页

作者： LIU Shutian(Department of Physics, Harbin Institute of Technology,Harbin 150001, China)Alexei A. Kamshilin, Victor V. Prokofiev, Timo jaaskelainen(University of Joensuu, Vaisala Laboratory, Department of Physics, P. O. Box 111, SF-80101, Joensuu, Finland) Univ of Joensuu Joensuu Finland

ＯｐｔｉｃａｌＡｓｓｏｃｉａｔｉｖｅＭｅｍｏｒｙＢａｓｅｄｏｎＤｏｕｂｌｅＰｈａｓｅＣｏｎｊｕｇａｔｉｏｎＵｓｉｎｇＢｉ＿（１２）ＴｉＯ＿（２０）ＰｈｏｔｏｒｅｆｒａｃｔｉｖｅＦｉｂｅｒ￥ＬＩＵＳｈｕｔｉａｎ（Ｄｅｐ... 详细信息

ＯｐｔｉｃａｌＡｓｓｏｃｉａｔｉｖｅＭｅｍｏｒｙＢａｓｅｄｏｎＤｏｕｂｌｅＰｈａｓｅＣｏｎｊｕｇａｔｉｏｎＵｓｉｎｇＢｉ＿（１２）ＴｉＯ＿（２０）ＰｈｏｔｏｒｅｆｒａｃｔｉｖｅＦｉｂｅｒ￥ＬＩＵＳｈｕｔｉａｎ（ＤｅｐａｒｔｍｅｎｔｏｆＰｈｙｓｉｃｓ，...

关键词： photorefractive fiber optical neural computing optical associative memory

Co-occurrence Matrix and Self-Organizing Map based query from spectral image database

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Co-occurrence Matrix and Self-Organizing Map based query fro...

20th Congress of the International Commission for Optics

作者： Oili Kohonen Markku Hauta-Kasari Jussi Parkkinen Timo jaaskelainen Department of Physics University of Joensuu Joensuu Finland Department of Computer Science University of Joensuu Joensuu Finland

A co-occurrence matrix and Self-Organizing Map (SOM) based technique for searching images from a spectral image database is proposed. At first the SOM is trained and the Best Matching Unit (BMU) histo

关键词： Spectral imaging Self-Organizing Map Best-Matching Unit Co-occurrence Matrix

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塞维利亚1992世界博览会,西班牙

世界建筑 1992年第5期 40-41页

作者： J.jaaskelainen P.Rouhiainen. J.Tirkkonen J.P.Viguier. J.F.Jodry N.Grimshaw J.Sondergaard. H.Rasmussen I.Makovecz 安藤忠雄 H.MuhIberger

1 芬兰馆设计 J. jaaskelainen, P. Rouhiainen, J. Tirkkonen 2 法国馆设计 J. P. Viguier, J. F. Jodry 3 英国馆设计 N. Grimshaw 4 丹麦馆设计 J. Sonder gaard, H. Rasmussen 5 匈牙利馆设计 I. Makovecz 6.7 日本馆设计安藤忠雄 8... 详细信息

1 芬兰馆设计 J. jaaskelainen, P. Rouhiainen, J. Tirkkonen 2 法国馆设计 J. P. Viguier, J. F. Jodry 3 英国馆设计 N. Grimshaw 4 丹麦馆设计 J. Sonder gaard, H. Rasmussen 5 匈牙利馆设计 I. Makovecz 6.7 日本馆设计安藤忠雄 8 步行道上,凉雾袭人

关键词：世界博览会日本馆塞维利亚安藤忠雄步行道