Demonstration venue · read-only. Every page can be browsed; the buttons that would change it are switched off. Create an account to run TaxoReview on your own data. A simulation from public publication records: the people listed were not invited and did not agree to review.
? Tutorial for this page

Roberto Costantini

dblp:69/4386 · DBLP profile ↗
← Back
2ranked-venue papers
2as first author
0since 2021 · last 2008
—ORCID · unresolved

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 2 · 2 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer graphics and multimedia
1 paper
Visual content generation and editing · 77% Visualization and visual analytics · 23%

Topics — the 2 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Visual content generation and editing › texture synthesis
dynamic texture synthesis
0.112008
Higher Order SVD Analysis for Dynamic Texture Synthesis · IEEE Trans. Image Process. 2008
Visualization and visual analytics
dimensionality reduction
0.012008
Higher Order SVD Analysis for Dynamic Texture Synthesis · IEEE Trans. Image Process. 2008

Methods — techniques the papers use, named apart from their topics

tucker decomposition · 0.1system identification · 0.1singular value decomposition · 0.1
YearPublicationVenuePosition
2008 Higher Order SVD Analysis for Dynamic Texture Synthesis
abstract
Videos representing flames, water, smoke, etc., are often defined as dynamic textures: "textures" because they are characterized by the redundant repetition of a pattern and "dynamic" because this repetition is also in time and not only in space. Dynamic textures have been modeled as linear dynamic systems by unfolding the video frames into column vectors and describing their trajectory as time evolves. After the projection of the vectors onto a lower dimensional space by a singular value decomposition (SVD), the trajectory is modeled using system identification techniques. Synthesis is obtained by driving the system with random noise. In this paper, we show that the standard SVD can be replaced by a higher order SVD (HOSVD), originally known as Tucker decomposition. HOSVD decomposes the dynamic texture as a multidimensional signal (tensor) without unfolding the video frames on column vectors. This is a more natural and flexible decomposition, since it permits us to perform dimension reduction in the spatial, temporal, and chromatic domain, while standard SVD allows for temporal reduction only. We show that for a comparable synthesis quality, the HOSVD approach requires, on average, five times less parameters than the standard SVD approach. The analysis part is more expensive, but the synthesis has the same cost as existing algorithms. Our technique is, thus, well suited to dynamic texture synthesis on devices limited by memory and computational power, such as PDAs or mobile phones.
Roberto Costantini, Luciano Sbaiz, Sabine Süsstrunk
IEEE Trans. Image Process.1
2004 A measure for spatial dependence in natural stochastic textures
Roberto Costantini, Gloria Menegaz, Sabine Süsstrunk
ICIP1