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ICIP
2007
IEEE
14 years 11 months ago
Tomographic Approach for Parametric Estimation of Local Diffusive Sources and Application to Heat Diffusion
We consider localized instantaneous sources that reside in a 2D diffusive environment. Our goal is to reconstruct the induced field from the measurements obtained by distributed s...
Ivana Jovanovic, Luciano Sbaiz, Martin Vetterli
ICIP
2007
IEEE
14 years 11 months ago
High Dimension Lattice Vector Quantizer Design for Generalized Gaussian Distributions
LVQ is a simple but powerful tool for vector quantization and can be viewed as a vector generalization of uniform scalar quantization. Like VQ, LVQ is able to take into account sp...
Leonardo H. Fonteles, Marc Antonini
ICIP
2007
IEEE
14 years 11 months ago
Incremental Refinement of Computation for the Discrete Wavelet Transform
Yiannis Andreopoulos, Mihaela van der Schaar
ICIP
2007
IEEE
14 years 11 months ago
Phase PCA for Dynamic Texture Video Compression
Temporal or dynamic textures (DT's) are video sequences that are spatially repetitive and temporally stationary. DT's are temporal analogs of the well known spatial stil...
Bernard Ghanem, Narendra Ahuja
ICIP
2007
IEEE
14 years 11 months ago
Recovering Intrinsic Images using an Illumination Invariant Image
In this paper a method for the extraction of shading and reflectance intrinsic images from a single uncalibrated image is presented. It is based on the classification of the image...
Michela Farenzena, Andrea Fusiello
ICIP
2007
IEEE
14 years 11 months ago
Enlarged Block Sizes and Motion Search Ranges for High Definition Video Coding
A rate-distortion (R-D) model is derived to investigate the potential coding gain from the use of a larger macroblock size for high definition (HD) video coding in this work. Codin...
Yunyang Dai, Qi Zhang, Siwei Ma, C. C. Jay Kuo
ICIP
2007
IEEE
14 years 11 months ago
Blind Audiovisual Source Separation using Sparse Representations
In this work we present a method to jointly separate active audio and visual structures on a given mixture. Blind Audiovisual Source Separation is achieved exploiting the coherenc...
Anna Llagostera Casanovas, Gianluca Monaci, Pierre...
ICIP
2007
IEEE
14 years 11 months ago
Visual Correlates of Fixation Selection: A Look at the Spatial Frequency Domain
A representation for observing local image content is proposed for the purpose of considering the distinguishing characteristics of visual content that tends to draw a human obser...
Neil D. B. Bruce, Daniel P. Loach, John K. Tsotsos
ICIP
2007
IEEE
14 years 11 months ago
Video Segmentation and Semantics Extraction from the Fusion of Motion and Color Information
In recent years, digital multimedia technologies have evolved significantly, and are finding numerous applications, over the internet, and even over mobile networks. Thus, the vid...
Alexia Briassouli, Vasileios Mezaris, Ioannis Komp...
ICIP
2007
IEEE
14 years 11 months ago
Adaptive Hash-Based Side Information Exploitation for Efficient Wyner-Ziv Video Coding
Wyner-Ziv video coding is a lossy source coding paradigm where the video statistics are exploited, partially or totally at the decoder. The side information represents a noisy ver...
Fernando Pereira, João Ascenso