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This paper presents a novel video stitching system for stitching multiple images with 4K and displaying them simultaneously. The key insight of the proposed system can be divided into two stages First, a image of super resolution, such as 16K/32K, and it can be divided evenly into 2×2 or 3×3…etc. Due to the parallelized GPU, we could decode these image simultaneously based on the DXT and JPEG compression...
Real-Time VQA (Video Quality Assessment) is very important for the tracking antenna system on an analog television in the decision making related to the direction of the antenna. This paper proposes VQA system based on FIS (Fuzzy Inference System) that works in real-time to process information from analog signals on AV-Out television. The VQA system can be said to work well if the output results show...
With the popularity of many massive online courses (MOOCs) and relevant platforms such as the Coursera, edX and Udemy, open learning and education will obviously become a very influential and significant sector in education all over the world, especially for developing countries like China and India with large population sizes and huge demands for tertiary education to develop the knowledge-based...
This paper presents a single-chip trinocular disparity estimation processor, capable of computing in real-time up to 2048×1080 resolution depth maps at 32fps with up to 256-pixel disparity range using two/three CMOS camera sensors. The most important feature of the presented design is that the chip is based on a trinocular adaptive window matching process that requires very limited on-chip memory,...
Converting audio signal to packet stream and propagating through wireless local area network (Wi-Fi technology) to loud speakers that may be located at different rooms will be a popular scenario of multimedia applications. Since the packets received by separate speakers varied with the transmission paths and environment to them, this made the playable contents different from one speaker to another...
The increased popularity of social media and mobile devices has radically changed the way people consume multimedia content online. As an example, users can experience the same event (e.g. a sports event or a concert) together using social media, even if they are not in the same physical location. Moreover, the introduction of the HTTP Adaptive Streaming principle has made it possible to deliver video...
In extremely connected and dynamic environments, such as data centers, SDN network devices can be exploited to simplify the management of network provisioning. However, they leverage on TCAMs to implement the flow tables, i.e., on size-limited memories that can be quickly filled up when fine-grained traffic control is required, eventually preventing the installation of new forwarding rules. In this...
Recently, the concept of adding multisensory media components to complement and extend user Quality of Experience (QoE) of traditional media has gained attention from both academia and industry. Research works stimulating additional senses like olfaction (sense of smell), haptic (sense of touch) and gustation (sense of taste) have emerged. In particular in theme parks, multisensory experiences that...
In recent years, small, inexpensive UAV - also known as drone - has made great progress, which brings privacy and security issues. Drone detection is one of the important methods to solve these problems. The main challenges of drone detection are: (1) A drone is very confusing with other flying objects such as a bird, (2) the low-flying UAV occlusion happens very frequent, and (3) the existing surveillance...
The FSM-SADF model of computation is especially suitable for analysing real-time applications with input-dependent behaviour such as different modes, variable execution times and scalable parallelism. Although FSM-SADF specifies which scenario transitions are possible, it does not specify how and when they are decided at runtime. Multiple actors of a scenario, e.g. video stream header parsing, may...
Recently, mobile broadcast services such as DMB, multimedia streaming services and IPTV, caused rapid increase of multimedia services sent over the Internet. It is important to define, measure and evaluate the elements related to the quality of providing the services over the Internet. In this paper, we propose multimedia quality measurement model that evaluates the quality of multimedia from consumers...
The previous work, suggests a portioned picturebroadcasting system where screens of small size are accumulated togenerate screen of bigger size through Ethernet network interfacethat helps in easy install & implementation of digitized displaydevices. The system makes use of Texas Instruments Da Vinciplatform, that is comprised of Da Vinci TMS320DM6646 dual coreCPU along an ARM9 core & C64+...
Many types of multimedia can be used to accommodate information for pervasive communication. Messages may be injected into them by information hiding techniques and extracted for various purposes. Such multimedia with messages embedded are called message-rich multimedia. A new method for creating message-rich videos is proposed in this study for people to exchange messages by display-and-imaging operations...
Nowadays, videos are mostly multiplexed with audios and wrapped in a multimedia container format. With speedy consumption of videos being a norm these days, authenticating video files (video + audio) becomes a challenging task. Conventional authentication schemes only focus on individual track such as audio or video. Therefore, in this work, we propose an authentication system where authentication...
In the era of distributed computing, different components of distributed application need to be synchronized. For instance, two users watching a football match at geographically distinct location require synchronous multimedia display on their screens for synchronous shared experience. Inter-destination Synchronization (IDS) mechanism is a fundamental requirement for synchronous shared experience...
According to the Convergence of a vehicle and IT, In-Vehicle-Network (IVN) is complicated and the multimedia data is increased. Ethernet guarantees Quality of Service (Qos) of the existing Control Area Network (CAN) communication and has a high bandwidth. As a result, the Ethernet is recently developed a new standard. IEEE 802.1 Audio Video Bridging (AVB) supports to handle priority and queuing for...
This paper proposes two methods for developing UAV based virtual reality (VR) systems: (1) using a head tracking system and (2) using a panoramic 360 degrees' field of view (FoV) camera array. The former can be used to achieve real-time virtual reality experiences for users. The latter can be used to generate off-line VR contents. This work focuses on developing three techniques: (1) head-camera synchronization,...
In this paper, an audiovisual quality assessment experiment was conducted on audiovisual clips collected using a PC-based videoconferencing application connected via a local IP network. The analyses of experimental results provided a better understanding of the influence of network impairments (packet loss, jitter, delay) on perceived audio and video qualities, as well as their interaction effect...
Synchronizing multimedia data such as audio and video with the 3D depth skeletal data of a patient performing therapy at home is a challenging task. This is because the media characteristics of video, audio, and skeletal stream data are different. To keep the rich session information and therapeutic semantics, the multiple media streams need to be synchronized temporally in two tiers. At the end of...
We present a camera array based plenoptic image acquisition system and re-focus algorithms for the plenoptic image data acquired using the system. In order to get time-synchronized images with a high resolution of up to 1920 by 1080, we integrated 25 industrial cameras with an external exposure synchronization devices. By using industrial cameras with precise time synchronization functionality, we...
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