Proceedings. IEEE International Conference on Multimedia and Expo
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On the segmentation of narrowly-spaced noisy audio signals
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 2 - Trang 281-284 vol.2
This paper proposes an efficient method of segmenting noisy audio signals using a linear binary Walsh transform, when the signal components are closely spaced and the time intervals between adjacent signal components are unknown. It is shown that the Walsh transform is appropriate for segmenting a noisy waveform. A subset of the Walsh functions is chosen to cover principally the noise subspace suc...... hiện toàn bộ
#Signal processing #Fourier transforms #Feature extraction #Noise measurement #Gaussian noise #Statistics #Computational modeling #Wavelet transforms #Frequency estimation #Frequency domain analysis
Author index
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 2 - Trang 617-625 - 2002
The author index contains an entry for each author and coauthor included in the proceedings record.
A novel motion estimation algorithm for arbitrarily shaped video coding
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 649-652 vol.1
In this paper, we present a fast motion estimation algorithm for arbitrarily shaped video coding in MPEG-4. This novel algorithm takes advantage of our new discovery about the close relation between the best matching block and its shape information-alpha plane. Without any additional padding computation, this new motion estimation algorithm computes the sum of absolute difference (SAD) between two...... hiện toàn bộ
#Motion estimation #Video coding #MPEG 4 Standard #Shape #Degradation #Gold #Computational modeling #Code standards #Computational complexity #Encoding
Context aware observation of human activities
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 909-912 vol.1
Interactive environments combine perception, action and communication to extend human-computer interaction. We believe that a fundamental challenge for interactive environments is developing models and methods for "context awareness". We present an ontology for context awareness for interactive environments. We show how the elements of this ontology correspond to the elements of a software archite...... hiện toàn bộ
#Context awareness #Humans #Ontologies #Context modeling #Computer architecture #Assembly #Software architecture #Switches #Computer vision #Predictive models
Design of a Dynamic SMIL player
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 2 - Trang 189-192 vol.2
Synchronized Multimedia Integration Language (SMIL) 2.0 has a support for user interactions with its declarative event timing and temporal hyperlinking model. However, complex Web applications require more control over multimedia presentations. This is achieved with a support for a scripting language. The result is Dynamic SMIL, a combination of SMIL and a scripting language. We present the design...... hiện toàn bộ
#XML #Java #Timing #Web sites #World Wide Web #Personal digital assistants #Transformer cores #Laboratories #Application software #Telecommunication control
MPEG-4 very low bit-rate video compression by adaptively utilizing sprite to short sequences
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 653-656 vol.1
In MPEG-4, a video sequence can be divided into foreground object and background objects that are independently encoded. Using sprites can dramatically compress the overall bit rate, but not all video sequences can be so encoded. This paper introduces MPEG-4 multimode coding; it offers automatic coding mode decision, video object generation and high compression efficiency. The source video sequenc...... hiện toàn bộ
#MPEG 4 Standard #Video compression #Sprites (computer) #Image coding #Video sequences #Cameras #Image quality #Bit rate #Image segmentation #Motion estimation
An MPEG-7 tool for compression and streaming of XML data
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 521-524 vol.1
In the course of work on the MPEG-7 standard, a binary format with special features for the encoding of XML data was required. These required key features are a high data compression ratio, provision for streaming, dynamic update of the document structure and fast random access of data entities in the compressed stream. To support these features, we propose a novel, schema-aware approach which exp...... hiện toàn bộ
#MPEG 7 Standard #XML #Streaming media #Filtering #Data compression #Decoding #Multimedia databases #Payloads #Signal processing #Encoding
Hierarchical modeling of a personalized face for realistic expression animation
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 457-460 vol.1
We present a system for creating a photorealistic 3D face model of a specific person with a hierarchical structure for dynamic facial expression animation. The facial modeling procedure starts from the individual facial measurements which provides a highly accurate facial geometry and color information. Based on the reconstructed facial mesh, a deformable multi-layer soft tissue model is developed...... hiện toàn bộ
#Facial animation #Deformable models #Skin #Solid modeling #Information geometry #Image reconstruction #Biological tissues #Muscles #Skull #Reflectivity
Surfing the Web on TV: the MHP approach
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 2 - Trang 285-288 vol.2
In last decade, we have seen the first steps to the end of passive television. Thanks to continuous advances in hardware and software, digital TV technology is now mature enough to enhance traditional TV sets (limited to content reproduction) with computing capability to run multimedia software integrating richer formats. A significant example of this progress is Internet access through television...... hiện toàn bộ
#Digital TV #Internet #Application software #Digital video broadcasting #Hardware #Multimedia computing #Multimedia communication #TV broadcasting #Streaming media #Multimedia systems
Gaussian mixture model for relevance feedback in image retrieval
Proceedings. IEEE International Conference on Multimedia and Expo - Tập 1 - Trang 229-232 vol.1
Relevance feedback (RF) has become a powerful technique in content-based image retrieval. Most RF methods assume that positive images follow the single Gaussian distribution, which is not sufficient to model the actual distribution of images due to the gap between the semantic concept and low-level features. In this paper, the Gaussian mixture model (GMM) is applied to represent the distribution o...... hiện toàn bộ
#Feedback #Image retrieval #Radio frequency #Asia #Content based retrieval #Gaussian distribution #Parameter estimation #Covariance matrix #Computer science #Data mining
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