JuxtaView - a tool for interactive visualization of large imagery on scalable tiled displays
JuxtaView - a tool for interactive visualization of large imagery on scalable tiled displays
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JuxtaView - 用于在可扩展平铺显示器上交互式可视化大型图像的工具
DOI：
10.1109/clustr.2004.1392640
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
B. Davis
中科院分区：
文献类型：
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作者：
N. K. Krishnaprasad;V. Vishwanath;S. Venkataraman;A. G. Rao;L. Renambot;J. Leigh;Andrew E. Johnson;B. Davis
它是一个基于集群的应用程序，用于在可伸缩的平铺显示器上观看超高分辨率图像。我们提出了一种新的并行计算和分布式存储方法，用于核外蒙太奇可视化，使用基于软件的网络级缓存系统LambdaRAM。该项目的最终目标是让用户能够交互式地浏览潜在的tb级分布式、空间参考图像数据，如来自电子显微镜、卫星和航空照片的数据。为了实现这一目标，我们描述了我们在局域网上实现的第一个原型，其中图像使用LambdaRAM分布在驱动平铺显示墙的PC集群的所有节点的内存上。LambdaRAM采用的主动预取方案有助于减少远程内存访问的延迟。我们将LambdaRAM与更传统的内存映射文件方法进行比较，以实现核外可视化。
JuxtaView is a cluster-based application for viewing ultra-high-resolution images on scalable tiled displays. We present in JuxtaView, a new parallel computing and distributed memory approach for out-of-core montage visualization, using LambdaRAM, a software-based network-level cache system. The ultimate goal of JuxtaView is to enable a user to interactively roam through potentially terabytes of distributed, spatially referenced image data such as those from electron microscopes, satellites and aerial photographs. In working towards this goal, we describe our first prototype implemented over a local area network, where the image is distributed using LambdaRAM, on the memory of all nodes of a PC cluster driving a tiled display wall. Aggressive prefetching schemes employed by LambdaRAM help to reduce latency involved in remote memory access. We compare LambdaRAM with a more traditional memory-mapped file approach for out-of-core visualization.