Search Results for author: Aline Roumy

Found 6 papers, 2 papers with code

Light-weight CNN-based VVC Inter Partitioning Acceleration

no code implementations17 Dec 2023 Yiqun Liu, Mohsen Abdoli, Thomas Guionnet, Christine Guillemot, Aline Roumy

Compared to the High Efficiency Video Coding (HEVC) standard, VVC offers about 50% compression efficiency gain, in terms of Bjontegaard Delta-Rate (BD-rate), at the cost of about 10x more encoder complexity.

CNN-based Prediction of Partition Path for VVC Fast Inter Partitioning Using Motion Fields

2 code implementations20 Oct 2023 Yiqun Liu, Marc Riviere, Thomas Guionnet, Aline Roumy, Christine Guillemot

Experiments show that the proposed method can achieve acceleration ranging from 16. 5% to 60. 2% under the RandomAccess Group Of Picture 32 (RAGOP32) configuration with a reasonable efficiency drop ranging from 0. 44% to 4. 59% in terms of BD-rate, which surpasses other state-of-the-art solutions.

Fine granularity access in interactive compression of 360-degree images based on rate-adaptive channel codes

no code implementations25 Jun 2020 Navid Mahmoudian Bidgoli, Thomas Maugey, Aline Roumy

This requires two characteristics: efficient compression of data, to lower the storage cost, and random access ability to extract part of the compressed stream requested by the user (for reducing the transmission rate).


Context-adaptive neural network based prediction for image compression

1 code implementation17 Jul 2018 Thierry Dumas, Aline Roumy, Christine Guillemot

Unlike the H. 265 intra prediction modes, which are each specialized in predicting a specific texture, the proposed PNNS can model a large set of complex textures.

Decoder Image Compression

Autoencoder based image compression: can the learning be quantization independent?

no code implementations23 Feb 2018 Thierry Dumas, Aline Roumy, Christine Guillemot

Usually, the rate-distortion performances of image compression are tuned by varying the quantization step size.

Image Compression Quantization

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