Results 41 to 50 of about 12,792 (207)
Perceptual Quality Study on Deep Learning based Image Compression
, 2019 Recently deep learning based image compression has made rapid advances with promising results based on objective quality metrics. However, a rigorous subjective quality evaluation on such compression schemes have rarely been reported.
Akyazi, Pinar +4 more
core +1 more source
ARCHANGEL: Tamper-proofing Video Archives using Temporal Content Hashes on the Blockchain [PDF]
, 2019 We present ARCHANGEL; a novel distributed ledger based system for assuring the long-term integrity of digital video archives. First, we describe a novel deep network architecture for computing compact temporal content hashes (TCHs) from audio-visual ...
Bell, Mark +10 more
core +2 more sources
Sensors, 2022 The paper proposes a novel post-filtering method based on convolutional neural networks (CNNs) for quality enhancement of RGB/grayscale images and video sequences. The lossy images are encoded using common image codecs, such as JPEG and JPEG2000.
Ionut Schiopu, Adrian Munteanu
doaj +1 more source
HEVC Based Mixed-Resolution Stereo Video Codec [PDF]
IEEE Access, 2018 This paper presents a High Efficiency Video Codec (HEVC) based spatial mixed-resolution stereo video codec. The proposed codec applies a frame interleaving algorithm to reorder the stereo video frames into a monoscopic video. The challenge for mixed-resolution video coding is to enable the codec to encode frames with different frame resolutions.
Bruhanth Mallik +2 more
openaire +2 more sources
LLM‐based keyword augmentation for title‐driven evidence selection: A practical approach
Journal of Forensic Sciences, EarlyView.Abstract Keyword‐based search is widely used in digital forensic investigations, yet its effectiveness depends strongly on investigator experience, leading to inconsistent results and missed evidence. While previous studies have explored machine learning and large language models (LLMs) to address this, practical deployment is often constrained by ...
Sanghyun Yoo, Doowon Jeong
wiley +1 more source
The disparity between optimal and practical Lagrangian multiplier estimation in video encoders
Frontiers in Signal Processing, 2023 With video streaming making up 80% of the global internet bandwidth, the need to deliver high-quality video at low bitrate, combined with the high complexity of modern codecs, has led to the idea of a per-clip optimisation approach in transcoding.
Daniel Joseph Ringis +3 more
doaj +1 more source
Image‐Based Spatio‐Temporal Interpolation for Split Rendering
Computer Graphics Forum, EarlyView.Abstract Low‐powered devices – such as small form factor head‐mounted displays (HMDs) – struggle to deliver a smooth and high‐quality viewing experience, due to their limited power and rendering capabilities. Cloud rendering attempts to solve the quality issue, but leads to prohibitive latency and bandwidth requirements, hindering use with HMDs over ...
M. Steiner +4 more
wiley +1 more source
DREFNet: Deep Residual Enhanced Feature GAN for VVC Compressed Video Quality Improvement
MathematicsIn recent years, the use of video content has experienced exponential growth. The rapid growth of video content has led to an increased reliance on various video codecs for efficient compression and transmission.
Tanni Das, Kiho Choi
doaj +1 more source
Objective Models for Performance Comparison of Compression Algorithms for 3DTV [PDF]
Radioengineering, 2019 Efficient video compression algorithms in advanced multimedia broadcasting systems are in high demand. In the last decades, different video compression tools have been developed which can influence the final Quality of Experience in different ways.
J. Kufa +4 more
doaj
Fixed-rate video codecs for wireless systems [PDF]
Proceedings of First International Workshop on Wireless Image/Video Communications, 2002 A comparative study of arbitrarily programmable, but fixed-rate videophone codecs using quarter common intermediate format (QCIF) video sequences scanned at 10 frames/s is offered. These codecs were designed to allow direct replacement of mobile radio voice codecs in second generation wireless systems, such as the Pan-European GSM, the American IS-54 ...
Streit, J, Hanzo, L
openaire +2 more sources