A5101519741- Video Coding and Compression Technologies
- Advanced Data Compression Techniques
- Image and Video Quality Assessment
- Multimedia Communication and Technology
- Advanced Vision and Imaging
- Advanced Image Processing Techniques
- Advanced Wireless Network Optimization
- Geotechnical and construction materials studies
- Photoacoustic and Ultrasonic Imaging
- Near-Field Optical Microscopy
- Error Correcting Code Techniques
- Advanced Fluorescence Microscopy Techniques
- Advanced Algorithms and Applications
- Image Processing Techniques and Applications
- Energy Efficient Wireless Sensor Networks
- Hygrothermal properties of building materials
- Interconnection Networks and Systems
- Phase-change materials and chalcogenides
- Mobile Ad Hoc Networks
- Image and Signal Denoising Methods
- Energy Harvesting in Wireless Networks
- Radar Systems and Signal Processing
- Anomaly Detection Techniques and Applications
- Wireless Signal Modulation Classification
- Therapeutic Uses of Natural Elements
China Electronics Technology Group Corporation
2024-2025
Menlo School
2023
Lanzhou University of Technology
2023
BC Platforms (Finland)
2022
Meta (United States)
2022
Xi'an Shiyou University
2019-2022
Jiangxi University of Science and Technology
2021
Intel (United Kingdom)
2017
Luoyang Normal University
2008-2011
University of Ottawa
2001-2007
Abstract Software radio technology has become one of the core technologies modern communication systems due to its high flexibility and reconfigurability. The rapid development artificial intelligence brought new solutions signal processing transmission quality software systems, especially in face complex electromagnetic environments, intelligent algorithms can improve performance system. Aiming at interference fading problems wireless signals this paper designs a deep learning-based...
In pervasive computing applications, computer embedded devices are used to perform control tasks and access the Internet or other information sources. However, most content of current sources was designed with desktop computers high-speed network connections in mind. They contain rich media data, which not suitable for those limited capabilities. Moreover, different user preference application scenarios, all data relevant critical application. Context-based adaptation is mainly concerned...
Accurate identification of ships is the key technology intelligent transportation in water. At same time, it also provides a judgment basis for water traffic safety control. This paper proposed detection method based on improved You Only Look Once version 3 (YOLOv3), which called Feature Attention, Enhancement YOLOv3 (AE-YOLOv3). The feature attention module was constructed by introducing mechanism, embedded Darknet-53 recalibration, extraction ability model complex navigable background. For...
In order to transmit pre-encoded digital video over heterogeneous networks, it is necessary employ transcoding techniques that convert streams into having different bit rates and quality. The specified problem referred as rate shaping or adaptation. this work, we propose a new control scheme for H.263+ based transcoding. proposed comprised of Frame-Layer allocation Macroblock-Layer control. At the frame layer, scene context statistics from incoming stream are utilized detect changes...
According to the latest UN statistics, more than 2 billion people in world still live various forms of earthen buildings, including some China. The variety earth-based constructional materials is significant among different regions, with each region influencing selection local earth construction materials. In this study, from four regions China were collected and sorted, 10 samples source, cube compressive strength tests performed analyze composition mechanical properties materials,...
In order to allow users use handheld devices accessing video information, such as downloading and playing files, there is a need downscale the compressed into lower spatial resolution transmission bit rate. this work, transcoding H.263 low spatial-resolution discussed realized. To reduce computation cost, motion vectors from incoming stream are resampled reused. We propose novel approach refine adaptively according of every frame or macroblock in frame. The proposed can improve quality...
The share of online video traffic in global carbon dioxide emissions is growing steadily. To comply with the demand for media, dedicated compression techniques are continuously optimized, but at expense increasingly higher computational demands and thus rising energy consumption encoder side. In order to find best trade-off between consumption, modeling encoding a wide range parameters crucial. We propose an time model SVT-AV1 based on empirical relations as well configurations. Furthermore,...
For video transmission over heterogeneous networks and devices, the compressed stream has to be converted into a lower bit rate or small spatial resolution. The operation of converting in format another also is called transcoding. specific transcoding issue mentioned here referred as adaptation shaping. We present novel allocation control algorithm for DCT domain Implementation results show that proposed can provide accurate better quality. Compared TMN-8, scheme generate more stable...
In this paper, we review several typical video transcoding architectures and major applications of transcoding. We identify issues involved in access streams through handheld devices wireless networks. To handle these issues, propose a gateway system for intelligently preencoded different user network connections. The main functions include frame size downscaling, rate conversion, bit adaptation, color etc. Based on this, design implement prototype the test it LAN.
In this work, we investigate the problem of bit rate adaptation transcoding for transmitting video over burst-error wireless channels. particular, consider a scenario consisting packet-based transmission with an automatic repeat request (ARQ) error control scheme. We first analyze buffering implications inserting transcoder at access point variable channel as target. derive conditions that both source encoder and buffers have to satisfy preventing decoder buffer from underflowing....
The rapid development of wireless technologies and computer-embedded devices make it possible for people to use portable accessing multimedia information service. In order bring service the various client while retaining ability go mobile, must be adapted, which is referred as media transcoding technology. this paper, some related issues are discussed. Media techniques classified from different perspectives. Then a general framework proposed explored. Video discussed major research focus....
In wireless sensor networks, one of the main design challenges is to save severely constrained energy resources and obtain a long system lifetime. Low cost sensors enables us initially deploy large number nodes in very high density. A potential approach solve lifetime problem schedule work alternatively by configuring some them low-energy, off-duty status. single network, assume two functionalities: sensing communication. Most previous addressed only kind redundancy: or communication alone....
This paper introduces a novel benchmark as part of the AIS 2024 Real-Time Image Super-Resolution (RTSR) Challenge, which aims to upscale compressed images from 540p 4K resolution (4x factor) in real-time on commercial GPUs. For this, we use diverse test set containing variety ranging digital art gaming and photography. The are using modern AVIF codec, instead JPEG. All proposed methods improve PSNR fidelity over Lanczos interpolation, process under 10ms. Out 160 participants, 25 teams...
Enabling high compression efficiency while keeping encoding energy consumption at a low level, requires prioritization of which videos need more sophisticated techniques. However, the effects vary highly based on content, and information how good video can be compressed is required. This measured by estimating encoded bitstream size prior to encoding. We identified errors between estimated motion vectors from Motion Search, an algorithm that predicts temporal changes in videos, correlates...
Video super-resolution (VSR) is a critical task for enhancing low-bitrate and low-resolution videos, particularly in streaming applications. While numerous solutions have been developed, they often suffer from high computational demands, resulting low frame rates (FPS) poor power efficiency, especially on mobile platforms. In this work, we compile different methods to address these challenges, the are end-to-end real-time video frameworks optimized both performance runtime. We also introduce...