Search Results for author: Amir Said

Found 12 papers, 0 papers with code

Low-Latency Neural Stereo Streaming

no code implementations26 Mar 2024 Qiqi Hou, Farzad Farhadzadeh, Amir Said, Guillaume Sautiere, Hoang Le

The rise of new video modalities like virtual reality or autonomous driving has increased the demand for efficient multi-view video compression methods, both in terms of rate-distortion (R-D) performance and in terms of delay and runtime.

Autonomous Driving Motion Compensation +1

Bitstream Organization for Parallel Entropy Coding on Neural Network-based Video Codecs

no code implementations1 Dec 2023 Amir Said, Hoang Le, Farzad Farhadzadeh

Video compression systems must support increasing bandwidth and data throughput at low cost and power, and can be limited by entropy coding bottlenecks.

Video Compression

New Filters for Image Interpolation and Resizing

no code implementations1 Dec 2023 Amir Said

We propose a new class of kernels to simplify the design of filters for image interpolation and resizing.

Differentiable bit-rate estimation for neural-based video codec enhancement

no code implementations24 Jan 2023 Amir Said, Manish Kumar Singh, Reza Pourreza

Neural networks (NN) can improve standard video compression by pre- and post-processing the encoded video.

Video Compression

Optimized learned entropy coding parameters for practical neural-based image and video compression

no code implementations20 Jan 2023 Amir Said, Reza Pourreza, Hoang Le

Neural-based image and video codecs are significantly more power-efficient when weights and activations are quantized to low-precision integers.

Quantization Video Compression

Boosting neural video codecs by exploiting hierarchical redundancy

no code implementations8 Aug 2022 Reza Pourreza, Hoang Le, Amir Said, Guillaume Sautiere, Auke Wiggers

In video compression, coding efficiency is improved by reusing pixels from previously decoded frames via motion and residual compensation.

Video Compression

MobileCodec: Neural Inter-frame Video Compression on Mobile Devices

no code implementations18 Jul 2022 Hoang Le, Liang Zhang, Amir Said, Guillaume Sautiere, Yang Yang, Pranav Shrestha, Fei Yin, Reza Pourreza, Auke Wiggers

Realizing the potential of neural video codecs on mobile devices is a big technological challenge due to the computational complexity of deep networks and the power-constrained mobile hardware.

Video Compression

Transform Network Architectures for Deep Learning based End-to-End Image/Video Coding in Subsampled Color Spaces

no code implementations27 Feb 2021 Hilmi E. Egilmez, Ankitesh K. Singh, Muhammed Coban, Marta Karczewicz, Yinhao Zhu, Yang Yang, Amir Said, Taco S. Cohen

Most of the existing deep learning based end-to-end image/video coding (DLEC) architectures are designed for non-subsampled RGB color format.

Progressive Neural Image Compression with Nested Quantization and Latent Ordering

no code implementations4 Feb 2021 Yadong Lu, Yinhao Zhu, Yang Yang, Amir Said, Taco S Cohen

We present PLONQ, a progressive neural image compression scheme which pushes the boundary of variable bitrate compression by allowing quality scalable coding with a single bitstream.

Image Compression Quantization

Parallelized Rate-Distortion Optimized Quantization Using Deep Learning

no code implementations11 Dec 2020 Dana Kianfar, Auke Wiggers, Amir Said, Reza Pourreza, Taco Cohen

We train two classes of neural networks, a fully-convolutional network and an auto-regressive network, and evaluate each as a post-quantization step designed to refine cheap quantization schemes such as scalar quantization (SQ).

Quantization Video Compression

Parametric Graph-based Separable Transforms for Video Coding

no code implementations16 Nov 2019 Hilmi E. Egilmez, Oguzhan Teke, Amir Said, Vadim Seregin, Marta Karczewicz

In many video coding systems, separable transforms (such as two-dimensional DCT-2) have been used to code block residual signals obtained after prediction.

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