Publications associées à Compression par dictionnaire

Dictionary Compression in Point Cloud Data Management

Nowadays, massive amounts of point cloud data can be collected thanks to advances in data acquisition and processing technologies such as dense image matching and airborne LiDAR scanning. With the increase in volume and precision, point cloud data offers a ...

ASSOC COMPUTING MACHINERY2019

Dictionary Compression in Point Cloud Data Management

Anastasia Ailamaki, Mirjana Pavlovic

Nowadays, massive amounts of point cloud data can be collected thanks to advances in data acquisition and processing technologies like dense image matching and airborne LiDAR (Light Detection and Ranging) scanning. With the increase in volume and precision ...

2017

Interleaving with Coroutines: A Practical Approach for Robust Index Joins

Anastasia Ailamaki, Georgios Psaropoulos

Index join performance is determined by the efficiency of the lookup operation on the involved index. Although database indexes are highly optimized to leverage processor caches, main memory accesses inevitably increase lookup runtime when the index outsiz ...

VLDB Endowment Inc.2017

Scalable Feature Extraction for Coarse-to-Fine JPEG2000 Image Classification

Pierre Vandergheynst, Christophe De Vleeschouwer, Benoît Macq

In this paper, we address the issues of analyzing and classifying JPEG 2000 code-streams. An original representation, called integral volume, is first proposed to compute local image features progressively from the compressed code-stream, on any spatial im ...

Institute of Electrical and Electronics Engineers2011

Low rate and flexible image coding with redundant representations

Pascal Frossard, Pierre Vandergheynst

New breakthroughs in image coding possibly rely in signal decomposition through non-separable basis functions. The work proposed in this paper provides an adaptive way of representing images as a sum of two-dimensional features. It presents a low bit-rate ...

2006

Image compression with learnt tree-structured dictionaries

Pierre Vandergheynst, Gianluca Monaci, Philippe Jost

In the present paper we propose a new framework for the construction of meaningful dictionaries for sparse representation of signals. The dictionary approach to coding and compression proves very attractive since decomposing a signal over a redundant set o ...

2004

Low rate and scalable image coding with redundant representations

Pascal Frossard, Pierre Vandergheynst

2003

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Compression par dictionnaire

Dictionary Compression in Point Cloud Data Management

Dictionary Compression in Point Cloud Data Management

Interleaving with Coroutines: A Practical Approach for Robust Index Joins

Scalable Feature Extraction for Coarse-to-Fine JPEG2000 Image Classification

Low bit-rate compression of omnidirectional images

Low rate and flexible image coding with redundant representations

Image compression with learnt tree-structured dictionaries

Low rate and scalable image coding with redundant representations

Graph Chatbot

Chattez avec Graph Search

Dictionary Compression in Point Cloud Data Management

Low bit-rate compression of omnidirectional images

Interleaving with Coroutines: A Practical Approach for Robust Index Joins

Dictionary Compression in Point Cloud Data Management

Scalable Feature Extraction for Coarse-to-Fine JPEG2000 Image Classification

Image compression with learnt tree-structured dictionaries

Low rate and flexible image coding with redundant representations

Low rate and scalable image coding with redundant representations