虚拟导演技术用于社交视频传播和活动直播制作

Rene Kaiser
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引用次数: 2

摘要

本文研究了虚拟导演技术的几个方面,即能够智能实时选择直播媒体流的软件。它解决了这个跨学科领域的几个研究问题,涉及如何构建通用的Virtual Director框架,以及如何对其行为进行建模和形式化,以在实时约束下实现具有许多并行用户的专业应用程序。已经建立了用于群组视频会议和现场直播的原型。该引擎执行电影原则,旨在增强用户体验。在群组视频会议中,虚拟导演旨在通过从多个可用流中进行选择来支持通信目标,即根据通信情况自动切换镜头。在事件广播中,它可以通过帧、动画和裁剪虚拟摄像机视图来实现个性化,就像从高分辨率全景中裁剪一样。虽然技术方法和框架已经在实验室实验中进行了评估,但涉及潜在用户和电影专业人员的进一步评估正在进行中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Virtual director technology for social video communication and live event broadcast production
This thesis investigates several aspects of Virtual Director technology, i.e. software capable of intelligent real-time selection of live media streams. It addresses several research questions in this interdisciplinary field with respect to how a generic Virtual Director framework can be constructed, and how its behavior can be modeled and formalized to realize professional applications with many parallel users within real-time constraints. Prototypes have been built for the applications of group videoconferencing and live event broadcast. The engine executes cinematic principles aiming to enhance the user experience. In group videoconferencing, a Virtual Director aims to support communication goals by selecting from multiple available streams, i.e. automating cuts between shots according to the communication situation. In event broadcast, it enables personalization by framing, animating and cutting virtual camera views as cropping from a high-resolution panorama. While the technical approach and framework has been evaluated in lab experiments, further evaluation involving potential users and cinematic professionals is ongoing.
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