Masahiro Iwahashi

ORCID

Publication Activity (10 Years)

Years Active: 1994-2024
Publications (10 Years): 60

Top Venues

APSIPA

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

IEEE Access

Multim. Tools Appl.

Publications

Kazuma Ohtomo, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi
AM-Bi-LSTM: Adaptive Multi-Modal Bi-LSTM for Sequential Recommendation. IEEE Access 12 (2024)
Daiki Okamura, Ryosuke Harakawa, Masahiro Iwahashi
LCNME: Label Correction Using Network Prediction Based on Memorization Effects for Cross-Modal Retrieval With Noisy Labels. IEEE Trans. Circuits Syst. Video Technol. 34 (1) (2024)
Ryoga Sato, Ryosuke Harakawa, Masahiro Iwahashi
Video Prediction Based on Multi-Resolution Echo State Networks for a Jar Test. SMC (2023)
Kazuma Ohtomo, Yukina Kitahara, Ryosuke Harakawa, Akihiro Nakamura, Yosuke Shida, Wataru Ogasawara, Masahiro Iwahashi
Micro-Spatial Attention with Sparse Constraint for Self-Supervised Learning for Oleaginous Yeast Image Representation. VCIP (2023)
Kazuma Ohtomo, Ryosuke Harakawa, Takahiro Ogawa, Miki Haseyama, Masahiro Iwahashi
User-centric multimodal feature extraction for personalized retrieval of tumblr posts. Multim. Tools Appl. 81 (2) (2022)
Isana Funahashi, Taichi Yoshida, Xi Zhang, Masahiro Iwahashi
Image Adjustment for Multi-Exposure Images Based on Convolutional Neural Networks. IEICE Trans. Inf. Syst. (1) (2022)
Chong Yeh Sai, Norrima Mokhtar, Masahiro Iwahashi, Paul Cumming, Hamzah Arof
Fully automated unsupervised artefact removal in multichannel electroencephalogram using wavelet-independent component analysis with density-based spatial clustering of application with noise. IET Signal Process. 15 (8) (2021)
Fuga Nakamura, Ryosuke Harakawa, Masahiro Iwahashi
Product Quantization to Reduce Entropy of Labels for Fast and Accurate Image Retrieval. APSIPA ASC (2021)
Tsutomu Ito, Ryosuke Harakawa, Masahiro Iwahashi
Word Clustering Using Graphical Lasso-Guided PCA for Trend Analysis of COVID-19. GCCE (2021)
Daiki Okamura, Ryosuke Harakawa, Masahiro Iwahashi
Learning from Noisy Labeled Samples Using Prediction Norm for Image Classification. SMC (2021)
Ryosuke Harakawa, Kazuma Ohtomo, Koki Takahashi, Yoko Matsuda, Masahiro Iwahashi
Hierarchical Clustering of Natural Disaster Images Using Visual Features. LifeTech (2021)
Daichi Nishikawa, Ryosuke Harakawa, Masahiro Iwahashi
Multi-View Variational Autoencoder for Robust Classification against Irrelevant Data. APSIPA ASC (2021)
Kazuma Ohtomo, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi
Sequential Recommender System of Educational Contents with End-to-End Title Feature Extraction for Reducing Utility Gap. GCCE (2021)
Ryosuke Harakawa, Masahiro Iwahashi
Ranking of Importance Measures of Tweet Communities: Application to Keyword Extraction From COVID-19 Tweets in Japan. IEEE Trans. Comput. Soc. Syst. 8 (4) (2021)
Yuya Takimoto, Ryosuke Harakawa, Masahiro Iwahashi
Hue-Based Gray Coding Method for Three-Dimensional Surface Measurement of Cutlery With Specular Reflection. IEEE Trans. Circuits Syst. Video Technol. 31 (4) (2021)
Koki Takahashi, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi
Weighted LDA Using Metadata for Extracting Topics Needed by Teachers. GCCE (2020)
Keisuke Kasuga, Ryosuke Harakawa, Masahiro Iwahashi
Classification of In-Vehicle Camera Images for Guardrail Inspection Support. LifeTech (2020)
Yuya Nagasugi, Ryosuke Harakawa, Masahiro Iwahashi
Naturalness-Preserving Image Stitching Based on Optimal Seam Estimation Considering Parallax. LifeTech (2020)
Takahiro Oga, Ryosuke Harakawa, Yoko Matsuda, Masahiro Iwahashi
Correlation Analysis of Cyber-Physical Data for Flood Disaster Prevention: Case of Typhoon Hagibis. LifeTech (2020)
Yo Umeki, Isana Funahashi, Taichi Yoshida, Masahiro Iwahashi
Salient Object Detection With Importance Degree. IEEE Access 8 (2020)
Kazuma Ohtomo, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi
Data Augmentation Using User Attention for Educational Content Recommendation Based on FFM. GCCE (2020)
Sayaka Minewaki, Masahiro Iwahashi, Hiroyuki Kobayashi, Taichi Yoshida, Hitoshi Kiya
Near lossless coding of sparse histogram images based on zero-skip quantization. Multim. Tools Appl. 78 (1) (2019)
Tin Moe Aye, Masahiro Iwahashi
Implementation and Analysis of Quantum Fourier Transform Gates Over FPGA Framework. MECO (2019)
Ryosuke Harakawa, Shoji Takimura, Takahiro Ogawa, Miki Haseyama, Masahiro Iwahashi
Consensus Clustering of Tweet Networks via Semantic and Sentiment Similarity Estimation. IEEE Access 7 (2019)
Zeyan Oo, Longbiao Wang, Khomdet Phapatanaburi, Meng Liu, Seiichi Nakagawa, Masahiro Iwahashi, Jianwu Dang
Replay attack detection with auditory filter-based relative phase features. EURASIP J. Audio Speech Music. Process. 2019 (2019)
Masahiro Tsumori, Shinichiro Nagai, Ryosuke Harakawa, Toru Sasaki, Masahiro Iwahashi
Restoration of Minute Light Emissions Observed by Streak Camera Based on N-CUP Method. APSIPA (2019)
Khomdet Phapatanaburi, Longbiao Wang, Seiichi Nakagawa, Masahiro Iwahashi
Replay Attack Detection Using Linear Prediction Analysis-Based Relative Phase Features. IEEE Access 7 (2019)
Zeyan Oo, Longbiao Wang, Khomdet Phapatanaburi, Masahiro Iwahashi, Seiichi Nakagawa, Jianwu Dang
Phase and reverberation aware DNN for distant-talking speech enhancement. Multim. Tools Appl. 77 (14) (2018)
Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya
Two-Layer Lossless Coding for High Dynamic Range Images Based on Range Compression and Adaptive Inverse Tone-Mapping. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2018)
Chong Yeh Sai, Norrima Mokhtar, Hamzah Arof, Paul Cumming, Masahiro Iwahashi
Automated Classification and Removal of EEG Artifacts With SVM and Wavelet-ICA. IEEE J. Biomed. Health Informatics 22 (3) (2018)
Isana Funahashi, You Umeki, Taichi Yoshida, Masahiro Iwahashi
Safety-level Estimation of Aerial Images based on Convolutional Neural Network for Emergency Landing of Unmanned Aerial Vehicle. APSIPA (2018)
You Umeki, Taichi Yoshida, Masahiro Iwahashi
Co-Propagation with Distributed Seeds for Salient Object Detection. IEICE Trans. Inf. Syst. (6) (2018)
Fairoza Amira Binti Hamzah, Sayaka Minewaki, Taichi Yoshida, Masahiro Iwahashi
Reduction of rounding noise and lifting steps in non-separable four-dimensional quadruple lifting integer wavelet transform. EURASIP J. Image Video Process. 2018 (2018)
Takahiro Oga, Yo Umeki, Masahiro Iwahashi, Yoko Matsuda
River water quality estimation based on convolutional neural network. APSIPA (2018)
Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi
Four-dimensional image compression with region of interest based on non-separable double lifting integer wavelet transform. APSIPA (2017)
Longbiao Wang, Khomdet Phapatanaburi, Zeyan Oo, Seiichi Nakagawa, Masahiro Iwahashi, Jianwu Dang
Phase aware deep neural network for noise robust voice activity detection. ICME (2017)
Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya
An inverse tone mapping operation with two integer data for HDR images. ISPACS (2017)
Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi
Non-separable four-dimensional integer wavelet transform with reduced rounding noise. Signal Process. Image Commun. 58 (2017)
Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi
Non-separable quadruple lifting structure for four-dimensional integer Wavelet Transform with reduced rounding noise. ICASSP (2017)
Khomdet Phapatanaburi, Longbiao Wang, Zeyan Oo, Weifeng Li, Seiichi Nakagawa, Masahiro Iwahashi
Noise robust voice activity detection using joint phase and magnitude based feature enhancement. J. Ambient Intell. Humaniz. Comput. 8 (6) (2017)
Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya
A Unified Tone Mapping Operation for HDR Images Expressed in Integer Data. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (3) (2016)
Khomdet Phapatanaburi, Longbiao Wang, Ryota Sakagami, Zhaofeng Zhang, Ximin Li, Masahiro Iwahashi
Distant-talking accent recognition by combining GMM and DNN. Multim. Tools Appl. 75 (9) (2016)
Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya
Adaptive Directional Lifting Structure of Three Dimensional Non-Separable Discrete Wavelet Transform for High Resolution Volumetric Data Compression. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2016)
Zeyan Oo, Yuta Kawakami, Longbiao Wang, Seiichi Nakagawa, Xiong Xiao, Masahiro Iwahashi
DNN-Based Amplitude and Phase Feature Enhancement for Noise Robust Speaker Identification. INTERSPEECH (2016)
You Umeki, Taichi Yoshida, Masahiro Iwahashi
Estimation method of initial labels for propagation-based saliency detection. APSIPA (2016)
Yuma Kinoshita, Sayaka Shiota, Masahiro Iwahashi, Hitoshi Kiya
An Remapping Operation without Tone Mapping Parameters for HDR Images. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (11) (2016)
Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya
A fixed-point local tone mapping operation for HDR images. EUSIPCO (2016)
Teerapong Orachon, Taichi Yoshida, Somchart Chokchaitam, Masahiro Iwahashi, Hitoshi Kiya
Channel Scaling for Integer Implementation of Minimum Lifting 2D Wavelet Transform. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (7) (2016)
Masahiro Iwahashi, Tin Moe Aye, Taichi Yoshida, Hitoshi Kiya
Subset noise bias compensation for tone-mapping and up-scaling of JPEG images. ISCAS (2016)
Masahiro Iwahashi, Teerapong Orachon, Tin Moe Aye, Taichi Yoshida, Hitoshi Kiya
Optimum SPT allocation for multipliers of minimum lifting 2D wavelet transform. ISCAS (2016)
Daiki Kimura, Akira Kondo, Taichi Yoshida, Masahiro Iwahashi
High dynamic range imaging based on camera response estimation and multi-gradients fusion. APSIPA (2016)
Zhaofeng Zhang, Xiong Xiao, Longbiao Wang, Jianwu Dang, Masahiro Iwahashi, Eng Siong Chng, Haizhou Li
Multi-channel feature adaptation for robust speech recognition. ISCSLP (2016)
Takao Sakai, Daiki Kimura, Taichi Yoshida, Masahiro Iwahashi
Hybrid method for multi-exposure image fusion based on weighted mean and sparse representation. EUSIPCO (2015)
Masahiro Iwahashi, Fairoza Amira Binti Hamzah, Taichi Yoshida, Hitoshi Kiya
Noise bias compensation based on Bayesian inference for tone mapped noisy image. APSIPA (2015)
Zhaofeng Zhang, Longbiao Wang, Atsuhiko Kai, Takanori Yamada, Weifeng Li, Masahiro Iwahashi
Deep neural network-based bottleneck feature and denoising autoencoder-based dereverberation for distant-talking speaker identification. EURASIP J. Audio Speech Music. Process. 2015 (2015)
Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya
A Unified Tone Mapping Operation for HDR Images Including Both Floating-Point and Integer Data. PCM (1) (2015)
Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya
Channel scaling for rounding noise reduction in minimum lifting 3D wavelet transform. APSIPA (2015)
Masahiro Iwahashi, Fairoza Amira Binti Hamzah, Taichi Yoshida, Hitoshi Kiya
Two layer coding of HDR images with noise bias compensation. APSIPA (2015)
Masahiro Iwahashi, Taichi Yoshida, Norrima Mokhtar, Hitoshi Kiya
Bit-depth scalable lossless coding for high dynamic range images. EURASIP J. Adv. Signal Process. 2015 (2015)
Hiroyuki Kobayashi, Masahiro Iwahashi, Hitoshi Kiya
A new class of near-lossless coding allowing estimation of ℓ∞ bound. ISCIT (2015)
Tatsuya Murofushi, Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya
An integer tone mapping operation for HDR images in OpenEXR with denormalized numbers. ICIP (2014)
Suvit Poomrittigul, Masahiro Iwahashi, Hitoshi Kiya
Reduction of Lifting Steps of Non Separable 2D Quadruple Lifting DWT Compatible with Separable 2D DWT. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (7) (2014)
Masahiro Iwahashi, Taichi Yoshida, Hitoshi Kiya
Range reduction of HDR images for backward compatibility with LDR image processing. APSIPA (2014)
Masahiro Iwahashi, Taichi Yoshida, Hitoshi Kiya
L2 norm optimization of tone mapping for two layer lossless coding of HDR images. APSIPA (2014)
Taku Odaka, Wannida Sae-Tang, Masaaki Fujiyoshi, Hiroyuki Kobayashi, Masahiro Iwahashi, Hitoshi Kiya
An Efficient Lossless Compression Method Using Histogram Packing for HDR Images in OpenEXR Format. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (11) (2014)
Mau-Luen Tham, Chee-Onn Chow, Masahiro Iwahashi, Hiroshi Ishii
BER-Driven Resource Allocation for Scalable Bitstreams Over OFDMA Networks. IEEE Trans. Veh. Technol. 63 (6) (2014)
Fairoza Amira Hamzah, Teerapong Orachon, Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya
Non-separable three dimensional discrete wavelet transform with adaptive directional prediction. APSIPA (2014)
Toshiyuki Dobashi, Tatsuya Murofushi, Masahiro Iwahashi, Hitoshi Kiya
A Fixed-Point Global Tone Mapping Operation for HDR Images in the RGBE Format. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (11) (2014)
Masahiro Iwahashi, Hitoshi Kiya
Noise bias compensation of tone mapped noisy image. ICIP (2014)
Masahiro Iwahashi, Suvit Poomrittigul, Hitoshi Kiya
Lossless transform with functionality of thumbnail previewing. APSIPA (2013)
Masahiro Iwahashi, Hitoshi Kiya
Two layer lossless coding of HDR images. ICASSP (2013)
Masahiro Iwahashi, Teerapong Orachon, Hitoshi Kiya
Non separable 3D lifting structure compatible with separable quadruple lifting DWT. APSIPA (2013)
Masahiro Iwahashi, Hitoshi Kiya
Error equalization for high quality LDR images in backward compatible HDR image coding. APSIPA (2013)
Alejandro González, Isao Nambu, Haruhide Hokari, Masahiro Iwahashi, Yasuhiro Wada
Towards the Classification of Single-Trial Event-Related Potentials Using Adapted Wavelets and Particle Swarm Optimization. SMC (2013)
Masahiro Iwahashi, Teerapong Orachon, Hitoshi Kiya
Three dimensional discrete wavelet transform with deduced number of lifting steps. ICIP (2013)
Toshiyuki Dobashi, Tatsuya Murofushi, Masahiro Iwahashi, Hitoshi Kiya
A fixed-point tone mapping operation for HDR images in the RGBE format. APSIPA (2013)
Tatsuya Murofushi, Masahiro Iwahashi, Hitoshi Kiya
An integer tone mapping operation for hdr images expressed in floating point data. ICASSP (2013)
Masahiro Iwahashi, Hiroyuki Kobayashi, Hitoshi Kiya
Lossy compression of sparse histogram image. ICASSP (2012)
Masahiro Iwahashi, Masanori Ogawa, Hitoshi Kiya
Avoidance of Singular Point in Integer Orthonormal Transform for Lossless Coding. IEEE Trans. Signal Process. 60 (5) (2012)
Masahiro Iwahashi, Hitoshi Kiya
Efficient lossless bit depth scalable coding for HDR images. APSIPA (2012)
Masahiro Iwahashi, Hiroyuki Kobayashi, Hitoshi Kiya
Fine rate control and high SNR coding for sparse histogram images. PCS (2012)
Kidane Mihreteab, Masahiro Iwahashi, Maki Yamamoto
Crow birds detection using HOG and CS-LBP. ISPACS (2012)
Hiroyuki Kobayashi, Masahiro Iwahashi, Hitoshi Kiya
Weighted median cut quantization and its applications. ISPACS (2012)
Masahiro Iwahashi, Masanori Ogawa, Hitoshi Kiya
Lossless integer color transform for four color components. VCIP (2011)
Masahiro Iwahashi, Hitoshi Kiya
Reversible 2D 9-7 DWT Based on Non-separable 2D Lifting Structure Compatible with Irreversible DWT. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (10) (2011)
Masahiro Iwahashi, Hitoshi Kiya
Optimumization of lifting structure of reversible KLT based on permutation of signal's order and sign. ICIP (2010)
Masahiro Iwahashi, Hitoshi Kiya
A new lifting structure of non separable 2D DWT with compatibility to JPEG 2000. ICASSP (2010)
Masahiro Iwahashi, Hitoshi Kiya
Reversible color transform with compatiblity to irreversible transform. ICIP (2010)
Hiroaki Iwai, Masahiro Iwahashi, Hitoshi Kiya
Methods for Avoiding the Checkerboard Distortion Caused by Finite Word Length Error in Multirate System. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (3) (2010)
Yasuaki Fukutani, Tomoyuki Takahashi, Masahiro Iwahashi, Tetsuya Kimura, Salbiah Siti Samsudin, Norrima Binti Mokhtar
Robot vision network based on ceiling map sharing. AMC (2010)
Masahiro Iwahashi, Hitoshi Kiya
Avoidance of singular point in reversible KLT. PCS (2010)
Masahiro Iwahashi, Hitoshi Kiya
A lossless condition of lifting DWT for specific DC values. ICASSP (2010)
Masahiro Iwahashi, Hideki Taguchi, Tetsuya Kimura
Functionally layered coding for robot vision network. PCS (2009)
Masahiro Iwahashi, Kenta Oguni
Three Dimensional Integer Rotation Transform and Improvement of its Compatibility. ISCAS (2009)
Masahiro Iwahashi, Hitoshi Kiya
Non separable 2D factorization of separable 2D DWT for lossless image coding. ICIP (2009)
Sakol Udomsiri, Hideki Taguchi, Tomoyuki Takahashi, Masahiro Iwahashi, Tetsuya Kimura
Functionally Layered Video Coding Based on JP2K for Robot Vision Network. J. Robotics Mechatronics 21 (6) (2009)
Sakol Udomsiri, Masahiro Iwahashi, Shogo Muramatsu
Functionally Layered Video Coding for Water Level Monitoring. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (4) (2008)
Hitoshi Kiya, Masahiro Iwahashi, Osamu Watanabe
A new class of lifting wavelet transform for guaranteeing losslessness of specific signals. ICASSP (2008)
Hitoshi Kiya, Masahiro Iwahashi, Osamu Watanabe
A new structure of lifting wavelet for reducing rounding error. ISCAS (2008)
Masahiro Iwahashi, Sakol Udomsiri
Water Level Detection from Video with Fir Filtering. ICCCN (2007)

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Publication Activity (10 Years)

Top Topics

Top Venues

Masahiro Iwahashi