Kazuaki Nakamura

49 papers A 1B 6Misc 1Journal 13Unranked 27
YearRankTypeTitle / Venue / Authors
2025 — conf
Access Control for Diffusion Models by Random Masking the Covariance of Initial Noise Distribution.
APSIPA
Temma Tanaka, Kazuaki Nakamura
2025 — conf
Defense Against Model Inversion Attacks Using a Dummy Recognition Model Trained with Synthetic Samples.
VISIGRAPP (2): VISAPP
Yuta Kotsuji, Kazuaki Nakamura
2025 — conf
Detoxification of Poisoned Recognition Models by Fine-Tuning with Out-of-Distribution Samples.
APSIPA
Junsuke Takano, Kazuaki Nakamura
2025 — conf
Detoxification of Unlabeled Dataset: Reducing Implicit Class Imbalance Using Pseudo-Jacobian of GAN's Generator.
MMM (1)
Kosei Suyama, Kazuaki Nakamura
2025 — conf
Evaluating Homography Error for Accurate Multi-Camera Multi-Object Tracking of Dairy Cows.
VISIGRAPP (2): VISAPP
Shunpei Aou, Yota Yamamoto, Kazuaki Nakamura, Yukinobu Taniguchi
2025 B conf
Label-Only Model Inversion Attacks with Query-Free Training of Conditional Diffusion-Based Attack Model.
AVSS
Hikaru Mori, Kazuaki Nakamura
2025 — conf
Model Extraction Attack and Its Countermeasure for Denoising Diffusion Implicit Models.
APSIPA
Hayato Shoji, Kazuaki Nakamura
2025 — conf
Reducing Implicit Class Imbalance in Unlabeled Datasets Using Text-Specified Sensitive Attributes.
APSIPA
Kosei Suayama, Kazuaki Nakamura
2024 — ed.
Frontiers of Computer Vision - 30th International Workshop, IW-FCV 2024, Tokyo, Japan, February 19-21, 2024, Revised Selected Papers
IW-FCV
Go Irie, Choonsung Shin, Takashi Shibata, Kazuaki Nakamura
2023 — conf
An Experimental Consideration on Gait Spoofing.
VISIGRAPP (5: VISAPP)
Yuki Hirose, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2023 J jnl
Social IoT Approach to Cyber Defense of a Deep-Learning-Based Recognition System in Front of Media Clones Generated by Model Inversion Attack.
IEEE Trans. Syst. Man Cybern. Syst.
Mahdi Khosravy, Kazuaki Nakamura, Naoko Nitta, Nilanjan Dey, Rubén González Crespo, Enrique Herrera-Viedma, Noboru Babaguchi
2022 J jnl
Anonymization of Human Gait in Video Based on Silhouette Deformation and Texture Transfer.
IEEE Trans. Inf. Forensics Secur.
Yuki Hirose, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2022 J jnl
Model Inversion Attack by Integration of Deep Generative Models: Privacy-Sensitive Face Generation From a Face Recognition System.
IEEE Trans. Inf. Forensics Secur.
Mahdi Khosravy, Kazuaki Nakamura, Yuki Hirose, Naoko Nitta, Noboru Babaguchi
2022 — conf
When AI Facilitates Trust Violation: An Ethical Report on Deep Model Inversion Privacy Attack.
CSCI
Mahdi Khosravy, Kazuaki Nakamura, Antoine Pasquali, Olaf Witkowski, Naoko Nitta, Noboru Babaguchi
2021 J jnl
Generation and Detection of Media Clones.
IEICE Trans. Inf. Syst.
Isao Echizen, Noboru Babaguchi, Junichi Yamagishi, Naoko Nitta, Yuta Nakashima, Kazuaki Nakamura, Kazuhiro Kono, Fuming Fang, Seiko Myojin, Zhenzhong Kuang, Huy H. Nguyen, Ngoc-Dung T. Tieu
2021 — conf
Model Inversion Attack against a Face Recognition System in a Black-Box Setting.
APSIPA ASC
Shunsuke Yoshimura, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2021 J jnl
Model Inversion Attack: Analysis under Gray-box Scenario on Deep Learning based Face Recognition System.
KSII Trans. Internet Inf. Syst.
Mahdi Khosravy, Kazuaki Nakamura, Yuki Hirose, Naoko Nitta, Noboru Babaguchi
2021 J jnl
Preventing Fake Information Generation Against Media Clone Attacks.
IEICE Trans. Inf. Syst.
Noboru Babaguchi, Isao Echizen, Junichi Yamagishi, Naoko Nitta, Yuta Nakashima, Kazuaki Nakamura, Kazuhiro Kono, Fuming Fang, Seiko Myojin, Zhenzhong Kuang, Huy H. Nguyen, Ngoc-Dung T. Tieu
2021 J jnl
Semi-Supervised Temporal Segmentation of Manufacturing Work Video by Automatically Building a Hierarchical Tree of Category Labels.
IEEE Access
Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi, Kensuke Fujii, Satoki Matsumura, Eiji Nabata
2020 J jnl
Constructing Geospatial Concept Graphs from Tagged Images for Geo-Aware Fine-Grained Image Recognition.
ISPRS Int. J. Geo Inf.
Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2020 — conf
Deep Face Recognizer Privacy Attack: Model Inversion Initialization by a Deep Generative Adversarial Data Space Discriminator.
APSIPA
Mahdi Khosravy, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2020 — conf
Detection of Cloned Recognizers: A Defending Method against Recognizer Cloning Attack.
APSIPA
Yuto Mori, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2020 B conf
Semi-Supervised Outdoor Image Generation Conditioned on Weather Signals.
ICPR
Sota Kawakami, Kei Okada, Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2019 — conf
Anonymization of Gait Silhouette Video by Perturbing Its Phase and Shape Components.
APSIPA
Yuki Hirose, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2019 J jnl
Constructing Geographic Dictionary from Streaming Geotagged Tweets.
ISPRS Int. J. Geo Inf.
Jeongwoo Lim, Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2019 J jnl
Discrimination between Genuine and Cloned Gait Silhouette Videos via Autoencoder-Based Training Data Generation.
IEICE Trans. Inf. Syst.
Yuki Hirose, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2019 — conf
Discrimination between Handwritten and Computer-Generated Texts using a Distribution of Patch-Wise Font Features.
APSIPA
Naoki Hamasaki, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2019 J jnl
Encryption-Free Framework of Privacy-Preserving Image Recognition for Photo-Based Information Services.
IEEE Trans. Inf. Forensics Secur.
Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2019 — conf
Generating Spoofing Tweets considering Points of Interest of Target User.
APSIPA
Jeongwoo Lim, Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2019 B conf
Training-Free Method for Generating Motion Video Clones From A Still Image Considering Self-Occlusion of Human Body.
ICIP
Teppei Tsutsumi, Kazuaki Nakamura, Seiko Myojin, Naoko Nitta, Noboru Babaguchi
2018 B conf
Generating Handwritten Character Clones from an Incomplete Seed Character Set using Collaborative Filtering.
ICFHR
Kazuaki Nakamura, Eiji Miyazaki, Naoko Nitta, Noboru Babaguchi
2017 — conf
A Framework of Privacy-Preserving Image Recognition for Image-Based Information Services.
MMM (1)
Kojiro Fujii, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2017 — conf
Constructing Geospatio-Temporal Concept Graphs from Tagged Images.
BigMM
Hiroshi Honjo, Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2017 — conf
Effect of Junk Images on Inter-concept Distance Measurement: Positive or Negative?
MMM (2)
Yusuke Nagasawa, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi
2017 — conf
Extracting Real-World Observations from Microblog.
BigMM
Masato Yoshitake, Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2017 — conf
On-line Geospatial Term Extraction from Streaming Geotagged Tweets.
BigMM
Takuya Kamimura, Naoko Nitta, Kazuaki Nakamura, Noboru Babaguchi
2016 B conf
Detection of groups in crowd considering their activity state.
ICPR
Kazuaki Nakamura, Tsukasa Ono, Noboru Babaguchi
2015 J jnl
Development and Evaluation of Near Real-Time Automated System for Measuring Consumption of Seasonings.
IEICE Trans. Inf. Syst.
Kazuaki Nakamura, Takuya Funatomi, Atsushi Hashimoto, Mayumi Ueda, Michihiko Minoh
2015 A conf
Temporal spotting of human actions from videos containing actor's unintentional motions.
ICME
Keita Hara, Kazuaki Nakamura, Noboru Babaguchi
2014 — conf
Camera oscillation pattern for VSLAM: Translational versus rotational.
IC3D
Mohamed Heshmat, Mohamed Abdellatif, Kazuaki Nakamura, A. A. Abouelsoud, Noboru Babaguchi
2014 — conf
Dynamic feature detection using virtual correction and camera oscillations.
IC3D
Mohamed Heshmat, Mohamed Abdellatif, Kazuaki Nakamura, A. A. Abouelsoud, Noboru Babaguchi
2014 — conf
Inter-Concept Distance Measurement with Adaptively Weighted Multiple Visual Features.
ACCV Workshops (3)
Kazuaki Nakamura, Noboru Babaguchi
2013 — conf
Development of nodding detection system based on Active Appearance Model.
SII
Kazuaki Nakamura, Tomio Watanabe, Mitsuru Jindai
2013 B conf
People counting across spatially disjoint cameras by flow estimation between foreground regions.
AVSS
Naoko Nitta, Takayuki Nakazaki, Kazuaki Nakamura, Ryota Akai, Noboru Babaguchi
2012 — conf
Investigation of a Method to Estimate Learners' Interest Level for Agent-Based Conversational e-Learning.
IPMU (2)
Kazuaki Nakamura, Koh Kakusho, Tetsuo Shoji, Michihiko Minoh
2012 J jnl
Machi-POS - point of sales system for restaurant district.
Int. J. Knowl. Web Intell.
Shimpei Matsumoto, Tomoko Kashima, Takanori Matsui, Kazuaki Nakamura, Tatsuo Matsutomi
2012 — conf
Recognizing ingredients at cutting process by integrating multimodal features.
CEA@ACM Multimedia
Atsushi Hashimoto, Jin Inoue, Kazuaki Nakamura, Takuya Funatomi, Mayumi Ueda, Yoko Yamakata, Michihiko Minoh
1998 — conf
Document Image Segmentation into Text, Tontinuous-tone and Screened-halftone Region by the Neural Networks.
PICS
Kazuaki Nakamura, Shinji Yamamoto, Tetsuya Itoh
1996 Misc conf
Document Image Segmentation into Text, Continuous-Tone and Screened-Halftone Region by the Neural Networks.
MVA
Kazuaki Nakamura, Jiang Hao, Shinji Yamamoto, Tetsuya Itoh