In video compression, progressive coding plays an important role in terms of coding efficiency and error resilience and has been an attractive research topic since the standardization of H.264/AVC. In this paper, we propose a high-performance progressive coding scheme with the help of bi-level images. Different from progressive H.264/AVC and other video standards, we construct image epitomes as...

With the increasing number of processor cores available in modern computing architectures, task or data parallelism is required to maximally exploit the available hardware and achieve optimal processing speed. Current stateof-the-art data-parallel processing methods for decoding image and video bitstreams are limited in parallelism by dependencies introduced by the coding tools and the number o...

In lossless coding, compresssion and decompression of source data result in the exact recovery of the individual elements of the original source data. Lossless image / video coding is necessary in applications where no loss of pixel values is tolerable. Examples are medical imaging, remote sensing, in image/video archives and studio applications where tandemand trans-coding are used in editing,...

The H.266/Versatile Video Coding (VVC) standard poses a great challenge for encoder design due to its high computational complexity and long encoding time. In this paper, the fast partitioning decision of coding blocks is investigated reduce save time VVC intra-frame predictive coding. A algorithm based on gradient structure similarity directional features proposed. First, average four sub-codi...

HEVC achieves significant coding efficiency improvement which is the best choice of 3D content but at a cost of much higher computation complexity. We propose a prediction estimation based H.264 to HEVC intra transcoder which can reach the high speed up for CU splitting with minor loss of coding efficiency for Intra picture. Our proposed method uses not only the intra prediction mode, predictio...

For the purpose of reducing the complexity of depth intra coding, a fast intra prediction mode decision algorithm is proposed. First, the fast decision of depth modeling modes (DMMs) is obtained by using Laplace Operator detection method. Second by using the correlation between the wedgelet pattern and texture features, only the wedgelet patterns, which are related to the intra angle mode, is t...

this study intends to evaluate interchange series (2005), which are still fundamental coursebooks in the efl curriculum settings, in terms of learning objectives in bloom’s revised taxonomy (2001) to see which levels of bloom's revised taxonomy were more emphasized in these coursebooks. for this purpose, the contents of interchange textbooks were codified based on a coding scheme designed by th...

© 2011 Seyoon Jeong et al. 145 We present a novel video codec for supporting entertainment-quality video. It has new coding tools such as an intra prediction with offset, integer sine transform, and enhanced block-based adaptive loop filter. These tools are used adaptively in the processing of intra prediction, transform, and loop filtering. In our experiments, the proposed codec achieved an av...

Human action recognition in videos is one of the most challenging tasks in computer vision. One important issue is how to design discriminative features for representing spatial context and temporal dynamics. Here, we introduce a path signature feature to encode information from intra-frame and inter-frame contexts. A key step towards leveraging this feature is to construct the proper trajector...

1 We consider the semantics of predicate Kripke frames with equality (called I-frames, for short), which is equivalent to the semantics of Kripke sheaves (see [3]). Namely, a (predicate) Kripke frame is a pairM = (W,U) formed by a posetW with the least element 0W and a domain map U defined on W such that U(u)⊆U(v) for u≤v. An I-frame is a triple M = (W,U, I), in which (W,U) is a Kripke frame an...