Akira Nakagawa

According to our database, Akira Nakagawa authored at least 24 papers between 1996 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

Improving Predicate Representation in Scene Graph Generation by Self-Supervised Learning.

So Hasegawa, Masayuki Hiromoto, Akira Nakagawa, Yuhei Umeda

Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, 2023

An Auto-Encoder to Reconstruct Structure with Cryo-EM Images via Theoretically Guaranteed Isometric Latent Space, and Its Application for Automatically Computing the Conformational Pathway.

Kimihiro Yamazaki, Yuichiro Wada, Atsushi Tokuhisa, Mutsuyo Wada, Takashi Katoh, Yuhei Umeda, Yasushi Okuno, Akira Nakagawa

Proceedings of the Medical Image Computing and Computer Assisted Intervention - MICCAI 2023, 2023

2022

Toward Unlimited Self-Learning Monte Carlo with Annealing Process Using VAE's Implicit Isometricity.

Yuma Ichikawa, Akira Nakagawa, Hiromoto Masayuki, Yuhei Umeda

CoRR, 2022

2021

Quantitative Understanding of VAE as a Non-linearly Scaled Isometric Embedding.

Akira Nakagawa, Keizo Kato, Taiji Suzuki

Proceedings of the 38th International Conference on Machine Learning, 2021

Symbolizing Visual Features for Pre-training with Unlabeled Images.

Yuichi Kamata, Moyuru Yamada, Keizo Kato, Akira Nakagawa, Takayuki Okatani

Proceedings of the Pattern Recognition - 6th Asian Conference, 2021

2020

Quantitative Understanding of VAE by Interpreting ELBO as Rate Distortion Cost of Transform Coding.

Akira Nakagawa, Keizo Kato

CoRR, 2020

Rate-distortion optimization guided autoencoder for isometric embedding in Euclidean latent space.

Keizo Kato, Jing Zhou, Tomotake Sasaki, Akira Nakagawa

Proceedings of the 37th International Conference on Machine Learning, 2020

Variable Rate Image Compression Method with Dead-zone Quantizer.

Jing Zhou, Akira Nakagawa, Keizo Kato, Sihan Wen, Kimihiko Kazui, Zhiming Tan

Proceedings of the 2020 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2020

2019

Rate-Distortion Optimization Guided Autoencoder for Generative Approach with quantitatively measurable latent space.

Keizo Kato, Jing Zhou, Akira Nakagawa

CoRR, 2019

2018

Speed-Up of Object Detection Neural Network with GPU.

Takuya Fukagai, Kyosuke Maeda, Satoshi Tanabe, Koichi Shirahata, Yasumoto Tomita, Atsushi Ike, Akira Nakagawa

Proceedings of the 2018 IEEE International Conference on Image Processing, 2018

2016

Acoustic echo and noise canceller for personal hands-free video IP phone.

Masahiro Fukui, Suehiro Shimauchi, Yusuke Hioka, Akira Nakagawa, Yoichi Haneda

IEEE Trans. Consumer Electron., 2016

Quality estimation for Japanese Haiku poems using Neural Network.

Shinji Kikuchi, Keizo Kato, Junya Saito, Seiji Okura, Kentaro Murase, Takaya Yamamoto, Akira Nakagawa

Proceedings of the 2016 IEEE Symposium Series on Computational Intelligence, 2016

2014

Double-talk robust acoustic echo cancellation for CD-quality hands-free videoconferencing system.

Masahiro Fukui, Suehiro Shimauchi, Yusuke Hioka, Akira Nakagawa, Youichi Haneda

IEEE Trans. Consumer Electron., 2014

2013

Common Requirements for Carrier-Grade NATs (CGNs).

Simon Perreault, Ikuhei Yamagata, Shin Miyakawa, Akira Nakagawa, Hiroyuki Ashida

RFC, April, 2013

High-Performance Video Codec for Super Hi-Vision.

Yoshiaki Shishikui, Kazuhisa Iguchi, Shinichi Sakaida, Kimihiko Kazui, Akira Nakagawa

Proc. IEEE, 2013

2012

Enhancement on the motion vector derivation of HEVC for interlace format.

Satoshi Shimada, Jumpei Koyama, Akihiro Yamori, Kimihiko Kazui, Hidenobu Miyoshi, Akira Nakagawa

Proceedings of the 2012 Picture Coding Symposium, 2012

Coefficient sign bit compression in video coding.

Jumpei Koyama, Akihiro Yamori, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa

Proceedings of the 2012 Picture Coding Symposium, 2012

Echo Reduction Using Wiener Gains Considering Short-Time Correlation Between Echo and Near-End Speech.

Masahiro Fukui, Akira Nakagawa, Suehiro Shimauchi, Yoichi Haneda, Akitoshi Kataoka

Proceedings of the IWAENC 2012 - International Workshop on Acoustic Signal Enhancement, Proceedings, RWTH Aachen University, Germany, September 4th, 2012

2009

Dynamic impulse response model for nonlinear acoustic system and its application to acoustic echo canceller.

Shoichiro Saito, Akira Nakagawa, Yoichi Haneda

Proceedings of the IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2009

2002

A study of an adaptive algorithm for stereo signals with a power difference.

Akira Nakagawa, Yoichi Haneda

Proceedings of the IEEE International Conference on Acoustics, 2002

2000

Channel-number-compressed multi-channel acoustic echo canceller for high-presence teleconferencing system with large display.

Akira Nakagawa, Suehiro Shimauchi, Yoichi Haneda, Shigeaki Aoki, Shoji Makino

Proceedings of the IEEE International Conference on Acoustics, 2000

1999

A stereo echo canceller implemented using a stereo shaker and a duo-filter control system.

Suehiro Shimauchi, Shoji Makino, Yoichi Haneda, Akira Nakagawa, Sumitaka Sakauchi

Proceedings of the 1999 IEEE International Conference on Acoustics, 1999

1997

Subband stereo echo canceller using the projection algorithm with fast convergence to the true echo path.

Shoji Makino, Klaus Strauss, Suehiro Shimauchi, Yoichi Haneda, Akira Nakagawa

Proceedings of the 1997 IEEE International Conference on Acoustics, 1997

1996

SSB subband echo canceller using low-order projection algorithm.

Shoji Makino, Josef Noebauer, Yoichi Haneda, Akira Nakagawa

Proceedings of the 1996 IEEE International Conference on Acoustics, 1996