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This work presents a coding efficiency evaluation of the recently published first release of the video coding scheme of the Alliance for Open Media (AOM), so called AOM/AV1, in comparison to the video coding standards H.264/MPEG-AVC (Advanced Video Coding) and H.265/MPEG-HEVC (High-Efficiency Video Coding). As representatives of the two last-mentioned video coding standards, the corresponding reference...
This paper presents a complexity-aware adaptive spatial preprocessing scheme for the efficient scalable video coding (SVC) by employing an adaptive prefilter for each SVC layer. According to the presented scheme, a dynamic transition region is defined between the region of interest (ROI) and background within each video frame, and then various parameters of each prefilter (such as the standard deviation,...
This work presents a performance comparison of the two latest video coding standards H.264/MPEG-AVC and H.265/MPEG-HEVC (High-Efficiency Video Coding) as well as the recently published proprietary video coding scheme VP9. According to the experimental results, which were obtained for a whole test set of video sequences by using similar encoding configurations for all three examined representative...
In this work, a network-optimized live scalable video streaming scheme with adaptive preprocessing is presented, while showing significant improvements in visual quality. According to the proposed scheme, an adaptive pre-filter is applied prior to encoding each Scalable Video Coding (SVC) layer, while each pre-filter parameters are dynamically adjusted according to varying network conditions, such...
This paper overviews the most recent trends and research directions with regard to presenting Region-of-Interest (ROI) multimedia content by using Scalable Video Coding (SVC), which can be especially useful for online multimedia education services in the heterogeneous end-user environment. The advent of a plurality of cheaper and more powerful devices, having the ability to play, create, and transmit...
In this work, a novel live scalable video streaming scheme, with adaptive pre-processing (pre-filtering), is presented. The scheme employs Scalable Video Coding (SVC), which is an extension of the H.264/AVC. An adaptive pre-filter is provided for each SVC layer, while each pre-filter's parameters, such as the standard deviation and kernel matrix size, are dynamically adjusted according to the varying...
In this work, an ultra-fast live video-in-video (ViV) insertion scheme is presented, according to which a predefined video content, such as a video advertisement, can be inserted in real-time into a predefined location within a pre-encoded video stream. According to the proposed scheme, the video insertion process is performed in two steps. The first step includes the modification of a conventional...
We present a complexity-aware adaptive spatial preprocessing (pre-filtering) scheme for the efficient Region-of-Interest (ROI) Scalable Video Coding (SVC). According to the proposed approach, we adaptively vary various parameters of the SVC pre-filters, such as standard deviations, a number of filters for the dynamic pre-processing of a transition region between the ROI and background, etc., thereby...
We present a novel efficient complexity-aware adaptive bitrate control with dynamic Region-of-Interest pre-processing (pre-filtering) for the Scalable Video Coding (SVC), which is an extension of H.264/AVC. According to the proposed approach, we adaptively vary various parameters of the SVC pre-filters, such as standard deviations and a number of filters for the dynamic pre-processing of a transition...
We present an adaptive pre-processing (pre-filtering) method and system for the efficient Scalable Video Coding (SVC). Our adaptive SVC pre-filtering system enables to decrease motion activity, and in turn, enables to decrease quantization fluctuations within the background region of each layer of a SVC video sequence, which contains two or more layers. In turn, this enables to use smaller quantization...
In this work, we present a novel approach for providing an adaptive bit-rate control for the Region-of-Interest (ROI) Scalable Video Coding (SVC). Recently, much of the attention in the field of video adaptation has been directed to the SVC, which is the extension of the H.264/AVC standard. The need for the scalability mainly arises from the need for spatial formats, bit rates or power. To fulfill...
Regions-of-interest (ROI) coding is a desirable feature in future applications of Scalable Video Coding (SVC), which is the extension of the H.264/AVC standard. For those SVC applications, users at the decoder side usually wish to receive a high-quality decoded video stream, containing the desired ROI, which should be adaptively selected from the pre-encoded scalable bit-stream. In this work, we present...
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