SSB subband echo canceller using low-order projection algorithm. - Shoji Makino; Josef Noebauer; Yoichi Haneda; Akira Nakagawa (ICASSP, 1996)

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 (ICASSP, 1997)

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 (ICASSP, 1999)

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 (ICASSP, 2000)

A study of an adaptive algorithm for stereo signals with a power difference. - Akira Nakagawa; Yoichi Haneda (ICASSP, 2002)

Dynamic impulse response model for nonlinear acoustic system and its application to acoustic echo canceller. - Shoichiro Saito; Akira Nakagawa; Yoichi Haneda (WASPAA, 2009)

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 (IWAENC, 2012)

Coefficient sign bit compression in video coding. - Jumpei Koyama; Akihiro Yamori; Kimihiko Kazui; Satoshi Shimada; Akira Nakagawa (PCS, 2012)

Enhancement on the motion vector derivation of HEVC for interlace format. - Satoshi Shimada; Jumpei Koyama; Akihiro Yamori; Kimihiko Kazui; Hidenobu Miyoshi; Akira Nakagawa (PCS, 2012)

High-Performance Video Codec for Super Hi-Vision. - Yoshiaki Shishikui; Kazuhisa Iguchi; Shinichi Sakaida; Kimihiko Kazui; Akira Nakagawa (Proc. IEEE, 2013)

Common Requirements for Carrier-Grade NATs (CGNs). - Simon Perreault; Ikuhei Yamagata; Shin Miyakawa; Akira Nakagawa; Hiroyuki Ashida (RFC, 2013)

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)

Quality estimation for Japanese Haiku poems using Neural Network. - Shinji Kikuchi; Keizo Kato; Junya Saito; Seiji Okura; Kentaro Murase; Takaya Yamamoto; Akira Nakagawa (SSCI, 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)

Speed-Up of Object Detection Neural Network with GPU. - Takuya Fukagai; Kyosuke Maeda; Satoshi Tanabe; Koichi Shirahata; Yasumoto Tomita; Atsushi Ike; Akira Nakagawa (ICIP, 2018)

Rate-Distortion Optimization Guided Autoencoder for Generative Approach with quantitatively measurable latent space. - Keizo Kato; Jing Zhou; Akira Nakagawa (CoRR, 2019)

Variable Rate Image Compression Method with Dead-zone Quantizer. - Jing Zhou; Akira Nakagawa; Keizo Kato; Sihan Wen; Kimihiko Kazui; Zhiming Tan (CVPR Workshops, 2020)

Rate-distortion optimization guided autoencoder for isometric embedding in Euclidean latent space. - Keizo Kato; Jing Zhou; Tomotake Sasaki; Akira Nakagawa (ICML, 2020)

Quantitative Understanding of VAE by Interpreting ELBO as Rate Distortion Cost of Transform Coding. - Akira Nakagawa; Keizo Kato (CoRR, 2020)

Symbolizing Visual Features for Pre-training with Unlabeled Images. - Yuichi Kamata; Moyuru Yamada; Keizo Kato; Akira Nakagawa; Takayuki Okatani (ACPR (2), 2021)

Quantitative Understanding of VAE as a Non-linearly Scaled Isometric Embedding. - Akira Nakagawa; Keizo Kato; Taiji Suzuki (ICML, 2021)

Toward Unlimited Self-Learning Monte Carlo with Annealing Process Using VAE's Implicit Isometricity. - Yuma Ichikawa; Akira Nakagawa; Hiromoto Masayuki; Yuhei Umeda (CoRR, 2022)

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 (MICCAI (1), 2023)

Improving Predicate Representation in Scene Graph Generation by Self-Supervised Learning. - So Hasegawa; Masayuki Hiromoto; Akira Nakagawa; Yuhei Umeda (WACV, 2023)

Analysis of the Echo Chamber Caused by Unexpected Opinions. - Akira Nakagawa; Yuichi Sei; Yasuyuki Tahara; Akihiko Ohsuga (ICICT, 2024)

Towards Generated Image Provenance Analysis via Conceptual-Similar-Guided-SLIP Retrieval. - Xiaojie Xia; Liuan Wang; Jun Sun 004; Akira Nakagawa (IEEE Signal Process. Lett., 2024)