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Image quality assessment is an important part in image processing. With the stereoscopic video technology development and popularization, quality assessment of stereoscopic images play an important role in three-dimensional (3D) multimedia applications. But the stereoscopic images quality assessment (SIQA) is facing many new challenges, such as depth perception, virtual view synthesis and asymmetric...
3D-HEVC, as the extension of High Efficiency Video Coding standard, achieves a significant improvement in the coding efficiency of 3D videos, compared with the Multi-View Video Coding (MVC). However the improvement causes a great computational complexity. In this paper, a fast coding parameters decision algorithm is proposed to reduce the computational complexity. The process of the selection of Coding...
High Efficiency Video Coding (HEVC) achieves the most significant coding efficiency compared with all the existing video coding standards. However, the Intra encoding complexity is increased dramatically since the complex recursive search algorithm for the coding unit (CU) size decisions. In this paper, a fast CU size decision algorithm based on Support Vector Machines (SVM) is proposed to further...
High Efficiency Video Coding (HEVC) achieves themost significant coding efficiency compared with all the existingvideo coding standards. However, the Intra encoding complexityis increased dramatically since the complex recursive searchalgorithm for the coding unit (CU) size decisions. In this paper, afast CU size decision algorithm based on Support Vector Machines(SVM) is proposed to further alleviate...
An elastic registration algorithm based on fuzzy set is proposed in the paper. The fuzziness of medical images is shown in two aspects: (1) the intensity of the pixels in medical images is fuzzy. The same kind of tissue may has different intensity and the same intensity may correspond to different tissues in one image; (2) the space position of image pixel is fuzzy. In the paper, we applied the fuzzy...
MV-HEVC is a 3D extension of the High Efficiency Video Coding (HEVC) standard, which is developed to improve the coding efficiency of multi-view video. However, this improved efficiency leads to greater computational complexity. Recently, how to reduce the encoding time for multi-view coding is becoming a hot issue in real-time applications. In this paper, a fast coding unit (CU) decision algorithm...
Extraction of discriminate features which could represent the facial expression accurately plays a vital role in effective Facial Expression Recognition (FER). Although much progress has been made, selecting the discriminate features is still a challenging and interesting problem in the FER system. In this paper, we propose a new FER method, which uses the active shape mode (ASM) algorithm to landmark...
The latest video coding standard High Efficiency Video Coding (HEVC) is developed by Joint Collaborative Team on Video Coding(JCTVC). HEVC can achieve better compression performance than any other coding standards, which adopts the quadtree structured coding tree unit (CTU). In encoding process, the CTU is recursively split into four equally sized coding unit (CU)s. Along with the multiple sizes of...
This paper presents a novel variance weighted visual information fidelity (VVIF) method for full reference image quality assessment (IQA) based on the visual attention. IQA aims to use computational models to measure the image quality consistently with subjective evaluations. In psychophysiology, variance is a mechanism that can stand for the structure information of an image and then express visual...
In recent years, there has been an emerging demand for utilizing biometrics especially face recognition in access control of secured areas and other applications like identity validation. In this paper, we develop a real-world face recognition system includes face detection and alignment, feature extraction under wireless networks. The proposed facial information extraction and face recognition system...
To improve the coding efficiency of intra frame, a quad tree-based variable block size coding structure which is flexible to adapt to various texture characteristics of images and up to 35 intra prediction modes are adopted in the latest High Efficiency Video Coding (HEVC) standard. To further alleviate the encoder computation load, this paper proposes a fast intra mode decision algorithm based on...
With the development of communications and network technologies, video streaming service is becoming increasingly important. However, in the transmission of high compressed video, bit-stream is easily damaged by channel errors which will lead to the decline of the video sequence. Error concealment is an effective approach to reduce the influence in error-prone network and notably improve the video...
Currently, as demonstrated in numerous researches and studies of evaluating the three-dimension (3D) image quality, two-dimension (2D) image quality assessment methods cannot be directly applied to measure the quality of 3D image. With the increasing demands of end-users to the visual perception in 3D image, it is necessary and urgent to propose efficient 3D image quality assessment methods. In this...
With the increasing growth of multimedia applications over the networking in recent years, users have put forward much higher requirements for multimedia quality of experience (QoE) than before. The objective approaches of image quality assessment play an important role for the development of compression standards and various multimedia applications. Nowadays the quality assessment of 3D (stereoscopic)...
Automatic facial expression recognition has been drawn many attentions in both computer vision and artificial intelligence (AI) for the past decades. Although much progress has been made, facial expression recognition (FER) is still a challenging and interesting problem. In this paper, we propose a new FER system, which uses the active shape mode (ASM) algorithm to align the faces, then extracts local...
The latest High Efficiency Video Coding (HEVC) standard could achieve the highest coding efficiency compared with all existing video coding standards. However, the computational complexity is increased dramatically because all the possible combinations of the mode candidates are calculated in order to find the optimal rate distortion (RD) cost using Lagrange multiplier. In order to save the coding...
The college students are outstanding contemporary youth, and the universities are source of various social trend of thought. It is a big challenge for the college educational workers to cultivate the college students of healthy, upward characters. However, the traditional teaching methods cannot meet the requirements and get an expected result. To solve these problems, a cultural transmission platform...
In order to apply high quality video communi-cation in the mobile device with limited power and comm-unication bandwidth, especially in wireless communication, an efficient solution for video communication should be proposed. So, the latest video coding standard, H.264/AVC, is used for Video Codec in mobile terminals. However, the H.264/AVC standard is much more complex than previous video coding...
Video quality assessment (VQA) plays an important role in video processing applications, e.g., compression, archiving, restoration, transmission and enhancement. Based on the video content, we design an effective and efficient objective video quality metric. Up to now, many efforts have been made to develop the VQA that take advantages of the various characteristics of human visual system (HVS). Several...
As the growth of Internet, Cloud Computing, Mobile Network and Internet of Things is increasing rapidly, Big Data is becoming a hot-spot in recent years. Big Data Processing is involved in our daily life such as mobile devices, RFID and wireless sensors, which aims at dealing with billions of users' interactive data. At the same time, real-time processing is eagerly needed in integrated system. In...
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