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A bit-stream-level method for identifying encrypted JPEG 2000 images without having to decrypt them is described. It is well known that editing the scenes of the movie is often necessary. In the editing process, image identification plays an important role in finding a frame that should be re-encoded. Thus, identification of encrypted images is very useful in digital cinema because all frames in digital...
We propose a multipath routing protocol for mobile ad hoc networks (MANETs), which combines split multipath-dynamic source routing (SMP-DSR) and shortest multipath source routing (SMS) and changes those backup paths selection criteria. Our proposed scheme improves the transmission success rate and the energy consumption by considering two features. One of the feature is to construct the least hop...
A joint bitstream level identification and retrieval method for JPEG 2000 images is proposed in this paper. Although the main purpose is to identify a JPEG 2000 image, the proposed method simultaneously retrieves JPEG 2000 images from a certain query with the computation of similarity. The proposed method uses the number of zero bitplanes, which is obtained by parsing the header information without...
The goal of this paper is to cross-lingually analyze multilingual blogs collected with a topic keyword. The framework of collecting multilingual blogs with a topic keyword is designed as the blog feed retrieval procedure. Multilingual queries for retrieving blog feeds are created from Wikipedia entries. Finally, we cross-lingually and cross-culturally compare less well known facts and opinions that...
An architecture of cross-lingual concern analysis (CLCA) using multilingual blog articles, and its prototype system are described. As various people who are living in various countries use the Web, cross-lingual information retrieval (CLIR) plays an important role in the next generation search. In this paper, we propose a CLCA as one of CLIR applications for facilitating users to find concerns of...
We bring a new perspective on a vertical handover scheme, a user-centric seamless handover, toward a next generation network where heterogeneous network systems converge. The proposed scheme allows us to provide users with the optimal service quality for real-time applications in respective network systems, as well as sustaining on-going sessions. Firstly we propose SIP-based bi-casting technology...
We have ail-optically created various quantum degenerate gases of ytterbium (Yb) atoms. The laser spectroscopy of ultra-narrow intercombination transitions 1S0-3P0 and 1S0-3P2 has been performed to probe the quantum degenerate gases of Yb atoms.
This paper presents what is going on in Motion-JPEG2000 standardization and its target applications. In this paper, unique features of Motion-JPEG2000 is introduced from many perspectives such as application and market, comparison with other standards, requirements, compression performance compared with Motion JPEG and file format. Since Motion-JPEG2000 guarantees backward compatibility with JPEG-2000...
Model-based image coding applied to interpersonal communication achieves very low bit-rate image transmission. To accomplish it, accurate three-dimensional (3-D) motion estimation of a speaker is necessary. A new method of 3-D motion estimation is presented, consisting of two steps. In the first, facial contours and feature points of a speaker are extracted using filtering and snake algorithms. Five...
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