Πλοήγηση ανά Θέμα "Image coding"
Αποτελέσματα 21-34 από 34
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On predicting bottlenecks in wavefront parallel video coding using deep neural networks
(2019)Video coding incurs high computational complexity particularly at the encoder side. For this reason, parallelism is used at the various encoding steps. One of the popular coarse grained parallelization tools offered by ... -
On the Evaluation of Coarse Grained Parallelism in AV1 Video Coding
(2018)Video compression is arguably one of the most time consuming tasks, especially at high resolutions. For this reason parallelization has been used at various levels: from coarse grained schemes that consider groups of blocks ... -
An optically-enabled chip-multiprocessor architecture using a single-level shared optical cache memory
(2016)We present an optical bus-based chip-multiprocessor architecture where the processing cores share an optical single-level cache implemented in a separate chip next to the Central-Processing-Unit (CPU) die. The interconnection ... -
Performance evaluation of batch encodings in HEVC using slice level parallelism
(2016)HEVC has emerged as the new video standard to replace H.264/AVC. Although the new standard is able to achieve significantly higher compression ratios compared to the older one, it entails high computational demands. To ... -
Power reduction in an H.264 encoder through algorithmic and logic transformations
(2006)The H.264 video coding standard can achieve considerably higher coding efficiency than previous video coding standards. The keys to this high coding efficiency are the two prediction modes (Intra & Inter) provided by H.264. ... -
Scalable 3D video streaming over P2P networks with playback length changeable chunk segmentation
(2015)3D video distribution over P2P networks has been thought as a promising way for 3D video entering home. The convergence of scalable 3D video coding and P2P streaming can provide diverse 3D experiences for heterogeneous ... -
Scheduling Video Transcoding Jobs in the Cloud
(2018)Video transcoding is the process of producing from an original (already encoded) input video sequence, multiple output sequences, each at potentially different bitrate, resolution and/or format. Transcoding is essential ... -
Shortening design time through multiplatform simulations with a portable OpenCL golden-model: The LDPC decoder case
(2012)Hardware designers and engineers typically need to explore a multi-parametric design space in order to find the best configuration for their designs using simulations that can take weeks to months to complete. For example, ... -
Slice-based parallelization in HEVC encoding: Realizing the potential through efficient load balancing
(2017)The new video coding standard HEVC (High Efficiency Video Coding) offers the desired compression performance in the era of HDTV and UHDTV, as it achieves nearly 50% bit rate saving compared to H.264/AVC. To leverage the ... -
SSIM-based error-resilient cross-layer optimization for wireless video streaming
(2016)The traditional Sum of Squared Error (SSE)-based cross-layer optimization has been shown to be an effective way to improve the quality of service for wireless video streaming. However, recent research works show that the ... -
Tile Based Wavefront Parallelism in HEVC
(2020)High Efficiency Video Coding (HEVC) was developed to tackle the 4K resolution era, achieving up to 50% more compression efficiency (for the same video quality) compared to its predecessor H.264/AVC. However, this performance ... -
Video-aware relay selection in single-carrier and OFDM wireless systems
(2014)In this paper we consider packetized video transmission in cooperative relay-based wireless networks. We propose algorithms for optimized relay selection that take into account the content of each specific video packet. ... -
Video-aware relay selection in single-carrier and OFDM wireless systems
(2016)In this paper we consider packetized video transmission in cooperative relay-based wireless networks. We propose algorithms for optimized relay selection that take into account the content of each specific video packet. ... -
Wavelet-based compression with ROI coding support for mobile access to DICOM images over heterogeneous radio networks
(2009)Most of the commercial medical image viewers do not provide scalability in image compression and/or region of interest (ROI) encoding/decoding. Furthermore, these viewers do not take into consideration the special requirements ...