The disruptive power of cloud computing is altering the gaming industry. Real-time gaming is now feasible because to advancements in streaming algorithms, further blurring the lines between the digital and physical wo...
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The production and consumption of video content has become a staple in the current day and age. With the rise of virtual reality (VR), users are now looking for immersive, interactive experiences which combine the cla...
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ISBN:
(纸本)9798400704123
The production and consumption of video content has become a staple in the current day and age. With the rise of virtual reality (VR), users are now looking for immersive, interactive experiences which combine the classic video applications, such as conferencing or digital concerts, with newer technologies. By going beyond 2D video into a 360 degree experience the first step was made. However, a 360 degree video offers only rotational movement, making interaction with the environment difficult. Fully immersive 3D content formats, such as light fields and volumetric video, aspire to go further by enabling six degrees-of-freedom (6DoF), allowing both rotational and positional freedom. Nevertheless, the adoption of immersive video capturing and rendering methods has been hindered by their substantial bandwidth and computational requirements, rendering them in most cases impractical for low latency applications. Several efforts have been made to alleviate these problems by introducing specialized compressionalgorithms and by utilizing existing 2D adaptation methods to adapt the quality based on the user's available bandwidth. However, even though these methods improve the quality of experience (QoE) and bandwidth limitations, they still suffer from high latency which makes real-time interaction unfeasible. To address this issue, we present a novel, open source [32], one-to-many streaming architecture using point cloud-based volumetric video. To reduce the bandwidth requirements, we utilize the Draco codec to compress the point clouds before they are transmitted using WebRTC which ensures low latency, enabling the streaming of real-time 6DoF interactive volumetric video. Content is adapted by employing a multiple description coding (MDC) strategy which combines sampled point cloud descriptions based on the estimated bandwidth returned by the Google congestion control (GCC) algorithm. MDC encoding scales more easily to a larger number of users compared to performing indi
With the development of 5G and multimedia technologies, applications such as ultra-high-definition video, VR and High dynamic range video have become more popular. This has led to an increasing amount of video data, w...
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Data compression technology is one of the essential core technologies for remote measurement and control of future intelligent ships. The quality and volume of the compressed digitalvideo of shipborne radar should me...
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The disruptive power of cloud computing is altering the gaming industry. Real-time gaming is now feasible because to advancements in streaming algorithms, further blurring the lines between the digital and physical wo...
The disruptive power of cloud computing is altering the gaming industry. Real-time gaming is now feasible because to advancements in streaming algorithms, further blurring the lines between the digital and physical worlds. Understanding the potential of Cloud computing to change the gaming industry is the emphasis which investigates the complicated relationship between numerous technologies. By using cutting-edge streaming protocols and techniques like Adaptive Bitrate Streaming (ABS), buffering, caching, and compression, users may have uninterrupted, high-quality gaming experiences. The study’s findings herald a new era of interactive entertainment and shed light on the transformative possibilities of these technologies. Asynchronous Bit-Rate (ABR) encoding, buffering, caching algorithms, videocompression standards, and streaming protocols are just few of the numerous digital components that work together to provide uninterrupted data transmission. The rapid progress of ABR algorithms has made it possible to dynamically alter video quality to maximize the user experience across a broad variety of network scenarios. Buffering and caching algorithms play crucial roles by proactively managing data flow and storage to avoid disruptions in the streaming experience.
Introducing digitalvideo technology into physical training to improve the scientificity and efficiency of physical training is a new research content. In actual tracking, the target is moving and sometimes interfered...
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ISBN:
(纸本)9781665400718
Introducing digitalvideo technology into physical training to improve the scientificity and efficiency of physical training is a new research content. In actual tracking, the target is moving and sometimes interfered by the background, so the accuracy of tracking the target is greatly reduced. With the improvement of sports competition level, the past training mode that only relied on coaches' intuition has been powerless to improve the competition level. Because machine vision has better accuracy and memory than human eyes, it can quickly capture moving targets and record various motion data of targets. In order to accomplish this task better, it is necessary to use existing technologies and methods to separate the target from the background, and then extract the target name, so as to achieve efficient tracking and capture of moving targets. In this paper, the improved background update difference method is used to detect the moving target, and then the clustering extraction algorithm is used to track the moving target, so as to realize the tracking analysis of sports video.
The development of portable devices such as digital cameras and mobile phones led to higher amount of research being dedicated to image and video processing systems. In particular, video processing coding technique su...
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ISBN:
(数字)9781538692790
ISBN:
(纸本)9781538692790
The development of portable devices such as digital cameras and mobile phones led to higher amount of research being dedicated to image and video processing systems. In particular, video processing coding technique such as High Efficiency video Coding (HEVC) requires low power consumption for the multimedia applications, this leads to extensive development in low area and high speed algorithms. The log time Discrete Cosine Transform (DCT) is increasingly employed for compression standards, since it has remarkable energy compaction properties. Pipelined and MAC based DCT have been implemented in digital hardware to offer better compression at very low circuit complexity. In this paper, a Time division multiplexing (TDM) based DCT architecture is implemented using the concept of resource sharing principle which possess low computational complexity and high speed. This hardware implementation results in reduced area and increased speed compared to the conventional DCT architectures implemented in Field Programmable Gate Array (FPGA) devices.
This article is devoted to the actual problem-the formation of modern technologies for processing digital information messages and the development of a video data compression method with a controlled level of quality ...
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This article is devoted to the in-depth analysis of efficiency for videocompressionalgorithms during inter-frame coding and impairments that appearing during compression. The main purpose of studies is carrying out ...
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ISBN:
(纸本)9781538666111
This article is devoted to the in-depth analysis of efficiency for videocompressionalgorithms during inter-frame coding and impairments that appearing during compression. The main purpose of studies is carrying out analysis in direction of defining requirements for instant and long-term bit-rate for video services with different criticality to video processing taking into account number of factors, particularly from different variants of inter-coding implementation. Results of such studies are related to complement information for other studies results and availability of such results useful during definition of video bit-rate requirements for streaming applications. Studies are based on usage of modern simulation technologies that is also applied for prototyping of hardware encoding devices. This provides possibility of analysis of efficiency of video encoders on different video processing stages. As result of simulation, performance of the video algorithm was analyzed;possible ways of increasing its efficiency were proposed and bit-rate requirements are formulated. The obtained results can be used for resource planning for introduction of video services and also during scientific studies in direction of videocompressionalgorithms efficiency increasing.
The popularity of 3D applications has brought out new challenges in the creation, compression and transmission of 3D content due to the large size of 3D data and the limitation of transmission. Several compression sta...
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ISBN:
(数字)9781510620766
ISBN:
(纸本)9781510620766
The popularity of 3D applications has brought out new challenges in the creation, compression and transmission of 3D content due to the large size of 3D data and the limitation of transmission. Several compression standards, such as, Multiview-HEVC and 3D-HEVC have been proposed to compress the 3D content aiding by view synthesis technologies, among which the most commonly used algorithm is Depth-Image-Based-Rendering (DIBR), but the quality assessment of DIBR-synthesized view is very challenging owing to its new types of distortions induced by inaccurate depth map which the conventional 2D quality metrics may fail to assess. In this paper, we test the performance of existing objective metrics on free-viewpoint video with different depth coding algorithms. Results show that all the existing objective metrics perform not well on this database including the full-reference and the no-reference. There is certainly room for further improvement for the algorithms.
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