Search Results for author: Jiro Katto

Found 21 papers, 7 papers with code

SCP: Spherical-Coordinate-based Learned Point Cloud Compression

no code implementations24 Aug 2023 Ao Luo, Linxin Song, Keisuke Nonaka, Kyohei Unno, Heming Sun, Masayuki Goto, Jiro Katto

In recent years, the task of learned point cloud compression has gained prominence.

Practical Commercial 5G Standalone (SA) Uplink Throughput Prediction

no code implementations23 Jul 2023 Kasidis Arunruangsirilert, Jiro Katto

While the 5G New Radio (NR) network promises a huge uplift of the uplink throughput, the improvement can only be seen when the User Equipment (UE) is connected to the high-frequency millimeter wave (mmWave) band.

4k 8k

Learned Image Compression with Mixed Transformer-CNN Architectures

2 code implementations CVPR 2023 Jinming Liu, Heming Sun, Jiro Katto

Most existing LIC methods are Convolutional Neural Networks-based (CNN-based) or Transformer-based, which have different advantages.

Image Compression

Multistage Spatial Context Models for Learned Image Compression

1 code implementation18 Feb 2023 Fangzheng Lin, Heming Sun, Jinming Liu, Jiro Katto

The proposed method features a comparable decoding speed to Checkerboard while reaching the RD performance of Autoregressive and even also outperforming Autoregressive.

Image Compression

Pensieve 5G: Implementation of RL-based ABR Algorithm for UHD 4K/8K Content Delivery on Commercial 5G SA/NR-DC Network

no code implementations29 Dec 2022 Kasidis Arunruangsirilert, Bo Wei, Hang Song, Jiro Katto

While the rollout of the fifth-generation mobile network (5G) is underway across the globe with the intention to deliver 4K/8K UHD videos, Augmented Reality (AR), and Virtual Reality (VR) content to the mass amounts of users, the coverage and throughput are still one of the most significant issues, especially in the rural areas, where only 5G in the low-frequency band are being deployed.

4k 8k

ABCAS: Adaptive Bound Control of spectral norm as Automatic Stabilizer

no code implementations12 Nov 2022 Shota Hirose, Shiori Maki, Naoki Wada, Heming Sun, Jiro Katto

Spectral Normalization is one of the best methods for stabilizing the training of Generative Adversarial Network.

Generative Adversarial Network

Semantic Segmentation in Learned Compressed Domain

no code implementations3 Sep 2022 Jinming Liu, Heming Sun, Jiro Katto

Most machine vision tasks (e. g., semantic segmentation) are based on images encoded and decoded by image compression algorithms (e. g., JPEG).

Image Compression Segmentation +1

Streaming-capable High-performance Architecture of Learned Image Compression Codecs

1 code implementation2 Aug 2022 Fangzheng Lin, Heming Sun, Jiro Katto

Learned image compression allows achieving state-of-the-art accuracy and compression ratios, but their relatively slow runtime performance limits their usage.

Image Compression Vocal Bursts Intensity Prediction

Memory-Efficient Learned Image Compression with Pruned Hyperprior Module

no code implementations21 Jun 2022 Ao Luo, Heming Sun, Jinming Liu, Jiro Katto

Learned Image Compression (LIC) gradually became more and more famous in these years.

Image Compression

Q-LIC: Quantizing Learned Image Compression with Channel Splitting

no code implementations28 May 2022 Heming Sun, Lu Yu, Jiro Katto

Learned image compression (LIC) has reached a comparable coding gain with traditional hand-crafted methods such as VVC intra.

Image Compression MS-SSIM +2

RSSI-CSI Measurement and Variation Mitigation with Commodity WiFi Device

no code implementations24 Mar 2022 Bo Wei, Hang Song, Jiro Katto, Takamaro Kikkawa

In this paper, the relationship between RSSI and CSI is studied in detail and the measurement variation of amplitude and phase information is investigated by extensive experiments.

End-to-End Learned Image Compression with Quantized Weights and Activations

no code implementations17 Nov 2021 Heming Sun, Lu Yu, Jiro Katto

To our best knowledge, this is the first work to give a complete analysis on the coding gain and the memory cost for a quantized LIC network, which validates the feasibility of the hardware implementation.

Image Compression MS-SSIM +2

Learned Video Compression with Residual Prediction and Loop Filter

1 code implementation19 Aug 2021 Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng, Yibo Fan

To reduce the complexity, a light ResNet structure is used as the backbone for both RP-Net and LF-Net.

Motion Compensation Video Compression

Fully Neural Network Mode Based Intra Prediction of Variable Block Size

1 code implementation5 Aug 2021 Heming Sun, Lu Yu, Jiro Katto

As far as we know, this is the first work to explore a fully NM based framework for intra prediction, and we reach a better coding gain with a lower complexity compared with the previous work.

regression

A QP-adaptive Mechanism for CNN-based Filter in Video Coding

no code implementations25 Oct 2020 Chao Liu, Heming Sun, Jiro Katto, Xiaoyang Zeng, Yibo Fan

Convolutional neural network (CNN)-based filters have achieved great success in video coding.

Quantization

Dual Learning-based Video Coding with Inception Dense Blocks

no code implementations22 Nov 2019 Chao Liu, Heming Sun, Junan Chen, Zhengxue Cheng, Masaru Takeuchi, Jiro Katto, Xiaoyang Zeng, Yibo Fan

This method is mainly composed of two parts: intra prediction and reconstruction filtering.

Learning Image and Video Compression through Spatial-Temporal Energy Compaction

no code implementations CVPR 2019 Zhengxue Cheng, Heming Sun, Masaru Takeuchi, Jiro Katto

Experimental results demonstrate that our proposed image compression outperforms the latest image compression standard with MS-SSIM quality metric, and provides higher performance compared with state-of-the-art learning compression methods at high bit rates, which benefits from our spatial energy compaction approach.

Image Compression MS-SSIM +2

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