منابع مشابه
Foveated video quality assessment
Most image and video compression algorithms that have been proposed to improve picture quality relative to compression efficiency have either been designed based on objective criteria such as signal-to-noise-ratio (SNR) or have been evaluated, post-design, against competing methods using an objective sample measure. However, existing quantitative design criteria and numerical measurements of im...
متن کاملFoveated Image and Video Coding
The human visual system (HVS) is highly space-variant in sampling, coding, processing, and understanding of visual information. The visual sensitivity is highest at the point of fixation and decreases dramatically with distance from the point of fixation. By taking advantage of this phenomenon, foveated image and video coding systems achieve increased compression efficiency by removing consider...
متن کاملFoveated video compression with optimal rate control
Previously, fovcated video compression algorithms have been proposed which, in certain applications, deliver high-quality video at reduced bit rates by seeking to match the nonuniform sampling of the human retina. We describe such a framework here where foveated video is created by a nonuniform filtering scheme that increases the compressibility of the video stream. We maximize a new foveal vis...
متن کاملMotion Estimation and Compensation for Foveated Video
Utilizing the nonuniform resolution property of the human visual system, foveated video can provide high visual quality relative to non-foveated video by allocating more bits to the central foveation area. In this paper, we present a motion estimation and compensation algorithm for foveated video and measure the performance using a new measure of visual delity termed foveal mean absolute distor...
متن کاملFoveated Stereo Video Compression for Visual Telepresence
This thesis focuses on the design of a foveated stereo video compression algorithm for visual telepresence applications. In a typical telepresence application, a user at the local site views real-time stereo video recorded and transmitted from a robotic camera platform located at a remote site. The robotic camera platform tracks the user’s head motion producing the sensation of being present at...
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ژورنال
عنوان ژورنال: IEEE Journal of Selected Topics in Signal Processing
سال: 2011
ISSN: 1932-4553,1941-0484
DOI: 10.1109/jstsp.2010.2065213