Video quality enhancement methods are of great significance in reducing the artifacts decoded videos High Efficiency Coding (HEVC). However, existing mainly focus on improving natural sequences, not for screen content sequences that have drawn more attention than ever due to demands remote desktops and online meetings. Different from encoded by HEVC, Screen Content (SCC), an extension tool HEVC...

Finding faces in images is one of the most important tasks in computer vision, with applications in biometrics, surveillance, human-computer interaction, and other areas. In our earlier work, we demonstrated that it is possible to tell whether or not an image contains a face by only examining the HEVC syntax, without fully reconstructing the image. In the present work we move further in this di...

A large-capacity information hiding algorithm for HEVC is proposed. We modify the intra prediction modes in 4x4 luminance blocks to embed secret information. According to the probability distribution of the statistical optimal prediction mode and suboptimal prediction mode, we are establishing a mapping relationship between prediction modes and secret information. Modifying the intra prediction...

The High Efficiency Video Coding has a significant compression performance benefit versus previous standards. Thanks to the high efficiency prediction tools, blocks with all-zero quantized transform coefficients are quite common in HEVC. The computation load of transform and quantization can be remarkably reduced if the all-zero blocks can be detected prior to transform and quantization. Based ...

The depth map compression of 3D High-Efficiency Video Coding (3D-HEVC) inherits prediction structure adopted by HEVC and develops supplementary coding modes to better express image. These new combine with existing technology implement high efficiency, but lead an extremely huge increase in time. This article proposes a rapid method for 3D-HEVC. proposed scheme utilizes the Bayesian decision rul...

In this paper, we propose a fast sample adaptive offset (SAO) parameter estimation algorithm based on the block-based edge detection in High Efficiency Video Coding (HEVC) encoder. Instead of the exhaustive search to find the best SAO parameters among all massive combinations, the proposed algorithm decides the best edge offset by analyzing the input block’s edge characteristics in advance. Fro...

This paper proposes a novel high efficiency video coding (HEVC) Tile partitioning method for the parallel processing by analyzing the computing ability of asymmetric multicores. The proposed method (i) analyzes the computing ability of asymmetric multicores and (ii) makes the regression model of computational complexity per video resolutions. Finally, the model (iii) determines the optimal HEVC...

This paper proposes a simplified DC calculation method for simplified depth coding (SDC) mode of 3D High Efficiency Video Coding (3D-HEVC) to reduce the computational complexity. For the computational complexity reduction, the current reference software of 3D-HEVC employs reference samples sub-sampling method. However, accumulation, branch, and division operations are still utilized and these o...

Abstract—Motion estimation occupies the heaviest computation in HEVC (high efficiency video coding). Many fast algorithms such as TZS (test zone search) have been proposed to reduce the computation. Still the huge computation of the motion estimation is a critical issue in the implementation of HEVC video codec. In this paper, motion estimator architecture with optimized number of PEs (processi...