Data transmission security has become an extremely important field of research. Steganography is an art of hiding information in image, audio and video files in a way that would meet the security requirements in the form of overt or covert. In this study, we propose a new hybrid steganography technique for color images that hide secret messages in the frequency domain of a cover image's blu...

the video quality assessment must be adapted to the human visual system, which is why researchers have performed subjective viewing experiments in order to obtain the conditions of encoding of video systems to provide the best quality to the user. the objective of this study is to assess the video quality using image features extraction without using reference video. rmse values and processing ...

At a receiver terminal, true 3D video provides ability to watch views selected from a large number of available views. Such ability is needed for the forthcoming 3D video applications like free-view television, autostereoscopic displays etc. Delivery of many views through communication channels is a challenging problem that has to be solved in the near future. In this paper, we study delivery o...

Intelligent video surveillance has been developed rapidly and broadly in daily public security and various civil applications. To establish an effective and standard performance evaluation, an appropriate metric is very important. This survey summarizes the state-of-the-art of performance evaluation for intelligent video algorithms, especially focuses on the performance evaluation of motion det...

The paper presents the methodology for 3D video subjective quality evaluation. Described methodology was designed to compare different 3D video compression technologies without an influence of any particular displaying or rendering technology. In addition detailed step by step description of test session design and preparation is provided. Experimental results for state-of-the-art 3D encoders a...

Transmodality is the partitioning of an image into regions that are expected to present a better entropy using different coding schemes, depending on their structural density, at constant bandwidth. In this paper we present the transmodality of video stream. Our contribution is a transmoder module that includes various different optimized video codecs and implements the concept of transmodality...

In this paper, we propose a learning-based method to compose a video-story from a group of video clips that describe an activity or experience. We learn the coherence between video clips from real videos via the Recurrent Neural Network (RNN) that jointly incorporates the spatial-temporal semantics and motion dynamics to generate smooth and relevant compositions. We further rearrange the result...

Triggered by the challenging prerequisites of wireless capsule endoscopic video technology, this paper presents a novel distributed video coding (DVC) scheme, which employs an original hash-based side-information creation method at the decoder. In contrast to existing DVC schemes, the proposed codec generates high quality side-information at the decoder, even under the strenuous motion conditio...

This chapter describes and explains common as well as less common distortions in modern video coding, ranging from artifacts appearing in MPEG-2 Video, MPEG-4 Part 2, H.264 and VC-1 to scalable and multi-view video coding based distortions, including the proposals for next generation video coding (NVC). In addition to a discussion about avoiding these artifacts through encoder-side measures, a ...

This work focuses on considering motion towards improving video quality assessment algorithms. The improvement refers to improving computational video quality assessment algorithms in order to be in closer agreement with the subjective evaluation of video quality. We propose a motion saliency model that exploits motion features on spatial level and also an approach for consideration of global m...