56 citations · 224 across the 17 of their papers we have counts for
6 papers · 1 filter
Cross-Color Channel Perceptually Adaptive Quantization for HEVC
Lee Prangnell, Miguel Hernández-Cabronero, Victor Sanchez
HEVC includes a Coding Unit (CU) level luminance-based perceptual quantization technique known as AdaptiveQP. AdaptiveQP perceptually adjusts the Quantization Parameter (QP) at the…
The Predictive Context Tree: Predicting Contexts and Interactions
Alasdair Thomason, Nathan Griffiths, Victor Sanchez
With a large proportion of people carrying location-aware smartphones, we have an unprecedented platform from which to understand individuals and predict their future actions. This…
Minimizing Compression Artifacts for High Resolutions with Adaptive Quantization Matrices for HEVC
Lee Prangnell, Victor Sanchez
Visual Display Units (VDUs), capable of displaying video data at High Definition (HD) and Ultra HD (UHD) resolutions, are frequently employed in a variety of technological domains.…
Color-Based Coding Unit Level Adaptive Quantization for HEVC
Lee Prangnell, Victor Sanchez
HEVC HM 16 includes a Coding Unit (CU) level perceptual quantization technique named AdaptiveQP. AdaptiveQP adjusts the Quantization Parameter (QP) at the CU level based on the spa…
Context Trees: Augmenting Geospatial Trajectories with Context
Alasdair Thomason, Nathan Griffiths, Victor Sanchez
Exposing latent knowledge in geospatial trajectories has the potential to provide a better understanding of the movements of individuals and groups. Motivated by such a desire, thi…
Adaptive Quantization Matrices for HD and UHD Display Resolutions in Scalable HEVC
Lee Prangnell, Victor Sanchez
HEVC contains an option to enable custom quantization matrices, which are designed based on the Human Visual System and a 2D Contrast Sensitivity Function. Visual Display Units, ca…