CISE Research Instrumentation

小行星9320317 该奖项用于购买高容量数字视频设备，这些设备将致力于支持计算机和信息科学与工程的研究。 该设备将用于几个研究项目，特别是包括：（1）非线性数字视频信号处理，（2）联合信源信道编码视频传输，（3）视频传输在高速计算机网络，和（4）传输网络协议的视频在多媒体应用。 数字视频将在消费类电子产品中发挥重要作用，它利用通信技术和计算机网络技术开辟了新的应用领域。 这项研究将实现几个目标。 首先，将开发新的非线性算法，用于高清晰度电视及其与现有视频系统的交互中所需的视频处理的滤波、插值、格式转换、多分辨率表示和预测。 由于已知线性信号处理技术会模糊图像和视频细节，从而抑制数字视频的主要目标--高分辨率，因此出现了对非线性信号处理的需求。 其次，联合信源信道编码方案将被开发用于鲁棒的视频传输。 数字传输系统在信号质量方面受到阈值效应的影响，而迎合最远用户的广播系统效率低下。 我们的目标是设计高效的视频传输方案，在性能上有一个优雅的降级。 第三，着重研究了数字视频在计算机网络上的接口和通信问题，特别是两个重要的问题：数据包丢失和缓冲区溢出和下溢。这两个问题都导致视频质量的下降。 这项研究将评估这种质量损失，并设计算法以最大限度地减少这种损失。最后，为了更有效地处理视频数据流，将开发与标准网络软件兼容的新的传输网络协议。 *** 视频设备，将专门用于支持资源 ~ $ $ $ G ? ? 倍 Helvetica符号 芝加哥 Times New Roman Arial 5罗马新R ZapfDingbats Palatino 希腊 GenMath 数学气象 MT Extra K " e@j 6 阿尔塞/特拉华州 马克·珀维斯

9320317 Arce This award is for the purchase of high capacity digital video equipment which will be dedicated to support research in computer and information sciences and engineering. The equipment will be used for several research projects, including in particular: (1) Nonlinear Digital Video Signal Processing, (2) Joint Source-Channel Coding for Video Transmission, (3) Video Transmission over High Speed Computer Networks, and (4) Transport Network Protocols for Video in Multi-media Applications. Digital video will be playing an important role in consumer electronics opening new application areas by exploiting the technologies of communications and computer networks. The research will accomplish several goals. Firstly, new nonlinear algorithms will be developed for the filtering, interpolation, format conversion, multi-resolution representation, and prediction of video processes needed in high-definition television and in its interaction with existing video systems. The need of nonlinear signal processing arises since linear signal processing techniques are known to blur image and video details inhibiting the main goal of digital video -- high resolution. Secondly, joint source channel coding schemes will be developed for robust video delivery. Digital transmission systems suffer from a threshold effect in signal quality, while broadcast systems that cater to the most distant user are inefficient. The goal is to design efficient video transmission schemes with a graceful degradation in performance. Thirdly, the work on the interface and communications aspects of digital video over computer networks wi ll be emphasized, in particular, the research focus will be on two important problems: packet loss and buffer overflows and underflows. Both these problems result in degradation of video quality. This research will assess this loss in quality and design algorithms to minimize this loss. Finally, in order to handle video data streams more efficiently, new transport network protocols which are compatible with standard network software will be developed. *** video equipment which will be dedicated to support res ~ $ $ $ G ? ? Times Symbol " Helvetica Chicago Times New Roman & Arial 5 Courier New R ZapfDingbats Palatino Greek GenMath MathMeteor MT Extra k " e@j 6 Arce/Delaware Mark Purvis Mark Purvis