Masahiro Iwahashi

According to our database, Masahiro Iwahashi authored at least 132 papers between 1994 and 2024.

Collaborative distances:

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

2024

LCNME: Label Correction Using Network Prediction Based on Memorization Effects for Cross-Modal Retrieval With Noisy Labels.

Daiki Okamura, Ryosuke Harakawa, Masahiro Iwahashi

IEEE Trans. Circuits Syst. Video Technol., January, 2024

MixSegNet: A Novel Crack Segmentation Network Combining CNN and Transformer.

Yang Zhou, Raza Ali, Norrima Mokhtar, Sulaiman Wadi Harun, Masahiro Iwahashi

IEEE Access, 2024

AM-Bi-LSTM: Adaptive Multi-Modal Bi-LSTM for Sequential Recommendation.

Kazuma Ohtomo, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi

IEEE Access, 2024

Classification of Oleaginous Yeast Images Based on Mixture of Experts with Micro-Spatial Attention.

Soma Nagatsu, Ryosuke Harakawa, Akihiro Nakamura, Yosuke Shida, Wataru Ogasawara, Masahiro Iwahashi

Proceedings of the 13th IEEE Global Conference on Consumer Electronics, 2024

2023

Choosing Between Coverage Vs. Path Efficiency for Unmanned Aerial Systems: A Case Study Utilizing Hector Quadrotor UAV In ROS.

Anees ul Husnain, Norrima Binti Mokhtar, Noraisyah Mohamed Shah, Mahidzal Bin Dahari, Muhammad Syazni Ikmal Bin Ramlee, Heshalini Rajagopal, Masahiro Iwahashi

J. Robotics Netw. Artif. Life, 2023

Micro-Spatial Attention with Sparse Constraint for Self-Supervised Learning for Oleaginous Yeast Image Representation.

Kazuma Ohtomo, Yukina Kitahara, Ryosuke Harakawa, Akihiro Nakamura, Yosuke Shida, Wataru Ogasawara, Masahiro Iwahashi

Proceedings of the IEEE International Conference on Visual Communications and Image Processing, 2023

Video Prediction Based on Multi-Resolution Echo State Networks for a Jar Test.

Ryoga Sato, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the IEEE International Conference on Systems, Man, and Cybernetics, 2023

2022

User-centric multimodal feature extraction for personalized retrieval of tumblr posts.

Kazuma Ohtomo, Ryosuke Harakawa, Takahiro Ogawa, Miki Haseyama, Masahiro Iwahashi

Multim. Tools Appl., 2022

Image Adjustment for Multi-Exposure Images Based on Convolutional Neural Networks.

Isana Funahashi, Taichi Yoshida, Xi Zhang, Masahiro Iwahashi

IEICE Trans. Inf. Syst., 2022

2021

Hue-Based Gray Coding Method for Three-Dimensional Surface Measurement of Cutlery With Specular Reflection.

Yuya Takimoto, Ryosuke Harakawa, Masahiro Iwahashi

IEEE Trans. Circuits Syst. Video Technol., 2021

Ranking of Importance Measures of Tweet Communities: Application to Keyword Extraction From COVID-19 Tweets in Japan.

Ryosuke Harakawa, Masahiro Iwahashi

IEEE Trans. Comput. Soc. Syst., 2021

Fully automated unsupervised artefact removal in multichannel electroencephalogram using wavelet-independent component analysis with density-based spatial clustering of application with noise.

Chong Yeh Sai, Norrima Mokhtar, Masahiro Iwahashi, Paul Cumming, Hamzah Arof

IET Signal Process., 2021

Learning from Noisy Labeled Samples Using Prediction Norm for Image Classification.

Daiki Okamura, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the 2021 IEEE International Conference on Systems, Man, and Cybernetics, 2021

Hierarchical Clustering of Natural Disaster Images Using Visual Features.

Ryosuke Harakawa, Kazuma Ohtomo, Koki Takahashi, Yoko Matsuda, Masahiro Iwahashi

Proceedings of the 3rd IEEE Global Conference on Life Sciences and Technologies, 2021

Sequential Recommender System of Educational Contents with End-to-End Title Feature Extraction for Reducing Utility Gap.

Kazuma Ohtomo, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi

Proceedings of the 10th IEEE Global Conference on Consumer Electronics, 2021

Word Clustering Using Graphical Lasso-Guided PCA for Trend Analysis of COVID-19.

Tsutomu Ito, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the 10th IEEE Global Conference on Consumer Electronics, 2021

Multi-View Variational Autoencoder for Robust Classification against Irrelevant Data.

Daichi Nishikawa, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2021

Product Quantization to Reduce Entropy of Labels for Fast and Accurate Image Retrieval.

Fuga Nakamura, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2021

2020

Salient Object Detection With Importance Degree.

Yo Umeki, Isana Funahashi, Taichi Yoshida, Masahiro Iwahashi

IEEE Access, 2020

Correlation Analysis of Cyber-Physical Data for Flood Disaster Prevention: Case of Typhoon Hagibis.

Takahiro Oga, Ryosuke Harakawa, Yoko Matsuda, Masahiro Iwahashi

Proceedings of the 2nd IEEE Global Conference on Life Sciences and Technologies, 2020

Naturalness-Preserving Image Stitching Based on Optimal Seam Estimation Considering Parallax.

Yuya Nagasugi, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the 2nd IEEE Global Conference on Life Sciences and Technologies, 2020

Classification of In-Vehicle Camera Images for Guardrail Inspection Support.

Keisuke Kasuga, Ryosuke Harakawa, Masahiro Iwahashi

Proceedings of the 2nd IEEE Global Conference on Life Sciences and Technologies, 2020

Weighted LDA Using Metadata for Extracting Topics Needed by Teachers.

Koki Takahashi, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi

Proceedings of the 9th IEEE Global Conference on Consumer Electronics, 2020

Data Augmentation Using User Attention for Educational Content Recommendation Based on FFM.

Kazuma Ohtomo, Ryosuke Harakawa, Masaki Iisaka, Masahiro Iwahashi

Proceedings of the 9th IEEE Global Conference on Consumer Electronics, 2020

2019

Near lossless coding of sparse histogram images based on zero-skip quantization.

Sayaka Minewaki, Masahiro Iwahashi, Hiroyuki Kobayashi, Taichi Yoshida, Hitoshi Kiya

Multim. Tools Appl., 2019

Replay attack detection with auditory filter-based relative phase features.

Zeyan Oo, Longbiao Wang, Khomdet Phapatanaburi, Meng Liu, Seiichi Nakagawa, Masahiro Iwahashi, Jianwu Dang

EURASIP J. Audio Speech Music. Process., 2019

Replay Attack Detection Using Linear Prediction Analysis-Based Relative Phase Features.

Khomdet Phapatanaburi, Longbiao Wang, Seiichi Nakagawa, Masahiro Iwahashi

IEEE Access, 2019

Consensus Clustering of Tweet Networks via Semantic and Sentiment Similarity Estimation.

Ryosuke Harakawa, Shoji Takimura, Takahiro Ogawa, Miki Haseyama, Masahiro Iwahashi

IEEE Access, 2019

Implementation and Analysis of Quantum Fourier Transform Gates Over FPGA Framework.

Tin Moe Aye, Masahiro Iwahashi

Proceedings of the 8th Mediterranean Conference on Embedded Computing, 2019

Restoration of Minute Light Emissions Observed by Streak Camera Based on N-CUP Method.

Masahiro Tsumori, Shinichiro Nagai, Ryosuke Harakawa, Toru Sasaki, Masahiro Iwahashi

Proceedings of the 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2019

2018

Automated Classification and Removal of EEG Artifacts With SVM and Wavelet-ICA.

Chong Yeh Sai, Norrima Mokhtar, Hamzah Arof, Paul Cumming, Masahiro Iwahashi

IEEE J. Biomed. Health Informatics, 2018

Phase and reverberation aware DNN for distant-talking speech enhancement.

Zeyan Oo, Longbiao Wang, Khomdet Phapatanaburi, Masahiro Iwahashi, Seiichi Nakagawa, Jianwu Dang

Multim. Tools Appl., 2018

Two-Layer Lossless Coding for High Dynamic Range Images Based on Range Compression and Adaptive Inverse Tone-Mapping.

Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018

Co-Propagation with Distributed Seeds for Salient Object Detection.

You Umeki, Taichi Yoshida, Masahiro Iwahashi

IEICE Trans. Inf. Syst., 2018

Reduction of rounding noise and lifting steps in non-separable four-dimensional quadruple lifting integer wavelet transform.

Fairoza Amira Binti Hamzah, Sayaka Minewaki, Taichi Yoshida, Masahiro Iwahashi

EURASIP J. Image Video Process., 2018

River water quality estimation based on convolutional neural network.

Takahiro Oga, Yo Umeki, Masahiro Iwahashi, Yoko Matsuda

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2018

Safety-level Estimation of Aerial Images based on Convolutional Neural Network for Emergency Landing of Unmanned Aerial Vehicle.

Isana Funahashi, You Umeki, Taichi Yoshida, Masahiro Iwahashi

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2018

2017

Non-separable four-dimensional integer wavelet transform with reduced rounding noise.

Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi

Signal Process. Image Commun., 2017

Noise robust voice activity detection using joint phase and magnitude based feature enhancement.

Khomdet Phapatanaburi, Longbiao Wang, Zeyan Oo, Weifeng Li, Seiichi Nakagawa, Masahiro Iwahashi

J. Ambient Intell. Humaniz. Comput., 2017

An inverse tone mapping operation with two integer data for HDR images.

Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the 2017 International Symposium on Intelligent Signal Processing and Communication Systems, 2017

Phase aware deep neural network for noise robust voice activity detection.

Longbiao Wang, Khomdet Phapatanaburi, Zeyan Oo, Seiichi Nakagawa, Masahiro Iwahashi, Jianwu Dang

Proceedings of the 2017 IEEE International Conference on Multimedia and Expo, 2017

Non-separable quadruple lifting structure for four-dimensional integer Wavelet Transform with reduced rounding noise.

Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi

Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

Four-dimensional image compression with region of interest based on non-separable double lifting integer wavelet transform.

Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi

Proceedings of the 2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2017

2016

Distant-talking accent recognition by combining GMM and DNN.

Khomdet Phapatanaburi, Longbiao Wang, Ryota Sakagami, Zhaofeng Zhang, Ximin Li, Masahiro Iwahashi

Multim. Tools Appl., 2016

Channel Scaling for Integer Implementation of Minimum Lifting 2D Wavelet Transform.

Teerapong Orachon, Taichi Yoshida, Somchart Chokchaitam, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

An Remapping Operation without Tone Mapping Parameters for HDR Images.

Yuma Kinoshita, Sayaka Shiota, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

Adaptive Directional Lifting Structure of Three Dimensional Non-Separable Discrete Wavelet Transform for High Resolution Volumetric Data Compression.

Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

A Unified Tone Mapping Operation for HDR Images Expressed in Integer Data.

Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016

Multi-channel feature adaptation for robust speech recognition.

Zhaofeng Zhang, Xiong Xiao, Longbiao Wang, Jianwu Dang, Masahiro Iwahashi, Eng Siong Chng, Haizhou Li

Proceedings of the 10th International Symposium on Chinese Spoken Language Processing, 2016

Optimum SPT allocation for multipliers of minimum lifting 2D wavelet transform.

Masahiro Iwahashi, Teerapong Orachon, Tin Moe Aye, Taichi Yoshida, Hitoshi Kiya

Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

Subset noise bias compensation for tone-mapping and up-scaling of JPEG images.

Masahiro Iwahashi, Tin Moe Aye, Taichi Yoshida, Hitoshi Kiya

Proceedings of the IEEE International Symposium on Circuits and Systems, 2016

DNN-Based Amplitude and Phase Feature Enhancement for Noise Robust Speaker Identification.

Zeyan Oo, Yuta Kawakami, Longbiao Wang, Seiichi Nakagawa, Xiong Xiao, Masahiro Iwahashi

Proceedings of the 17th Annual Conference of the International Speech Communication Association, 2016

A fixed-point local tone mapping operation for HDR images.

Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the 24th European Signal Processing Conference, 2016

Estimation method of initial labels for propagation-based saliency detection.

You Umeki, Taichi Yoshida, Masahiro Iwahashi

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2016

High dynamic range imaging based on camera response estimation and multi-gradients fusion.

Daiki Kimura, Akira Kondo, Taichi Yoshida, Masahiro Iwahashi

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2016

2015

Bit-depth scalable lossless coding for high dynamic range images.

Masahiro Iwahashi, Taichi Yoshida, Norrima Mokhtar, Hitoshi Kiya

EURASIP J. Adv. Signal Process., 2015

Deep neural network-based bottleneck feature and denoising autoencoder-based dereverberation for distant-talking speaker identification.

Zhaofeng Zhang, Longbiao Wang, Atsuhiko Kai, Takanori Yamada, Weifeng Li, Masahiro Iwahashi

EURASIP J. Audio Speech Music. Process., 2015

A Unified Tone Mapping Operation for HDR Images Including Both Floating-Point and Integer Data.

Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Advances in Multimedia Information Processing - PCM 2015, 2015

A new class of near-lossless coding allowing estimation of ℓ∞ bound.

Hiroyuki Kobayashi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the 15th International Symposium on Communications and Information Technologies, 2015

Hybrid method for multi-exposure image fusion based on weighted mean and sparse representation.

Takao Sakai, Daiki Kimura, Taichi Yoshida, Masahiro Iwahashi

Proceedings of the 23rd European Signal Processing Conference, 2015

Noise bias compensation based on Bayesian inference for tone mapped noisy image.

Masahiro Iwahashi, Fairoza Amira Binti Hamzah, Taichi Yoshida, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

Two layer coding of HDR images with noise bias compensation.

Masahiro Iwahashi, Fairoza Amira Binti Hamzah, Taichi Yoshida, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

Channel scaling for rounding noise reduction in minimum lifting 3D wavelet transform.

Fairoza Amira Binti Hamzah, Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2015

2014

BER-Driven Resource Allocation for Scalable Bitstreams Over OFDMA Networks.

Mau-Luen Tham, Chee-Onn Chow, Masahiro Iwahashi, Hiroshi Ishii

IEEE Trans. Veh. Technol., 2014

Reduction of Lifting Steps of Non Separable 2D Quadruple Lifting DWT Compatible with Separable 2D DWT.

Suvit Poomrittigul, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

An Efficient Lossless Compression Method Using Histogram Packing for HDR Images in OpenEXR Format.

Taku Odaka, Wannida Sae-Tang, Masaaki Fujiyoshi, Hiroyuki Kobayashi, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

A Fixed-Point Global Tone Mapping Operation for HDR Images in the RGBE Format.

Toshiyuki Dobashi, Tatsuya Murofushi, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014

An integer tone mapping operation for HDR images in OpenEXR with denormalized numbers.

Tatsuya Murofushi, Toshiyuki Dobashi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the 2014 IEEE International Conference on Image Processing, 2014

Noise bias compensation of tone mapped noisy image.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the 2014 IEEE International Conference on Image Processing, 2014

L2 norm optimization of tone mapping for two layer lossless coding of HDR images.

Masahiro Iwahashi, Taichi Yoshida, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2014

Range reduction of HDR images for backward compatibility with LDR image processing.

Masahiro Iwahashi, Taichi Yoshida, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2014

Non-separable three dimensional discrete wavelet transform with adaptive directional prediction.

Fairoza Amira Hamzah, Teerapong Orachon, Taichi Yoshida, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2014

2013

Towards the Classification of Single-Trial Event-Related Potentials Using Adapted Wavelets and Particle Swarm Optimization.

Alejandro González, Isao Nambu, Haruhide Hokari, Masahiro Iwahashi, Yasuhiro Wada

Proceedings of the IEEE International Conference on Systems, 2013

Three dimensional discrete wavelet transform with deduced number of lifting steps.

Masahiro Iwahashi, Teerapong Orachon, Hitoshi Kiya

Proceedings of the IEEE International Conference on Image Processing, 2013

An integer tone mapping operation for hdr images expressed in floating point data.

Tatsuya Murofushi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the IEEE International Conference on Acoustics, 2013

Two layer lossless coding of HDR images.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the IEEE International Conference on Acoustics, 2013

Lossless transform with functionality of thumbnail previewing.

Masahiro Iwahashi, Suvit Poomrittigul, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

Non separable 3D lifting structure compatible with separable quadruple lifting DWT.

Masahiro Iwahashi, Teerapong Orachon, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

Error equalization for high quality LDR images in backward compatible HDR image coding.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

A fixed-point tone mapping operation for HDR images in the RGBE format.

Toshiyuki Dobashi, Tatsuya Murofushi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2013

2012

Avoidance of Singular Point in Integer Orthonormal Transform for Lossless Coding.

Masahiro Iwahashi, Masanori Ogawa, Hitoshi Kiya

IEEE Trans. Signal Process., 2012

Fine rate control and high SNR coding for sparse histogram images.

Masahiro Iwahashi, Hiroyuki Kobayashi, Hitoshi Kiya

Proceedings of the 2012 Picture Coding Symposium, 2012

Crow birds detection using HOG and CS-LBP.

Kidane Mihreteab, Masahiro Iwahashi, Maki Yamamoto

Proceedings of the International Symposium on Intelligent Signal Processing and Communications Systems, 2012

Weighted median cut quantization and its applications.

Hiroyuki Kobayashi, Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the International Symposium on Intelligent Signal Processing and Communications Systems, 2012

Lossy compression of sparse histogram image.

Masahiro Iwahashi, Hiroyuki Kobayashi, Hitoshi Kiya

Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Efficient lossless bit depth scalable coding for HDR images.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2012

2011

Reversible 2D 9-7 DWT Based on Non-separable 2D Lifting Structure Compatible with Irreversible DWT.

Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011

Lossless integer color transform for four color components.

Masahiro Iwahashi, Masanori Ogawa, Hitoshi Kiya

Proceedings of the 2011 IEEE Visual Communications and Image Processing, 2011

2010

Methods for Avoiding the Checkerboard Distortion Caused by Finite Word Length Error in Multirate System.

Hiroaki Iwai, Masahiro Iwahashi, Hitoshi Kiya

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010

Avoidance of singular point in reversible KLT.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the Picture Coding Symposium, 2010

Reversible color transform with compatiblity to irreversible transform.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the International Conference on Image Processing, 2010

Optimumization of lifting structure of reversible KLT based on permutation of signal's order and sign.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the International Conference on Image Processing, 2010

A lossless condition of lifting DWT for specific DC values.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the IEEE International Conference on Acoustics, 2010

A new lifting structure of non separable 2D DWT with compatibility to JPEG 2000.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the IEEE International Conference on Acoustics, 2010

Robot vision network based on ceiling map sharing.

Yasuaki Fukutani, Tomoyuki Takahashi, Masahiro Iwahashi, Tetsuya Kimura, Salbiah Siti Samsudin, Norrima Binti Mokhtar

Proceedings of the 11th IEEE International Workshop on Advanced Motion Control, 2010

2009

Functionally Layered Video Coding Based on JP2K for Robot Vision Network.

Sakol Udomsiri, Hideki Taguchi, Tomoyuki Takahashi, Masahiro Iwahashi, Tetsuya Kimura

J. Robotics Mechatronics, 2009

Functionally layered coding for robot vision network.

Masahiro Iwahashi, Hideki Taguchi, Tetsuya Kimura

Proceedings of the 2009 Picture Coding Symposium, 2009

Three Dimensional Integer Rotation Transform and Improvement of its Compatibility.

Masahiro Iwahashi, Kenta Oguni

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2009), 2009

Non separable 2D factorization of separable 2D DWT for lossless image coding.

Masahiro Iwahashi, Hitoshi Kiya

Proceedings of the International Conference on Image Processing, 2009

2008

Functionally Layered Video Coding for Water Level Monitoring.

Sakol Udomsiri, Masahiro Iwahashi, Shogo Muramatsu

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008

A new structure of lifting wavelet for reducing rounding error.

Hitoshi Kiya, Masahiro Iwahashi, Osamu Watanabe

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2008), 2008

A new class of lifting wavelet transform for guaranteeing losslessness of specific signals.

Hitoshi Kiya, Masahiro Iwahashi, Osamu Watanabe

Proceedings of the IEEE International Conference on Acoustics, 2008

2007

Water Level Detection for Functionally Layered Video Coding.

Masahiro Iwahashi, Sakol Udomsiri, Yuji Imai, Shogo Muramatsu

Proceedings of the International Conference on Image Processing, 2007

Functionally Layered Video Coding for River Surveillance.

Masahiro Iwahashi, Sakol Udomsiri

Proceedings of the 16th International Conference on Computer Communications and Networks, 2007

Water Level Detection from Video with Fir Filtering.

Masahiro Iwahashi, Sakol Udomsiri

Proceedings of the 16th International Conference on Computer Communications and Networks, 2007

A New Optimum-Word-Length-Assignment (OWLA) Multiplierless Integer DCT for Lossless/Lossy Image Coding and Its Performance Evaluation.

Somchart Chokchaitam, Masahiro Iwahashi

Proceedings of the Advanced Concepts for Intelligent Vision Systems, 2007

2006

Generation of Panoramic Image from Aerial Video utilizing JP2K Wavelet for River Surveillance.

Masahiro Iwahashi, Sakol Udomsiri, Jyun Watanabe, Shinji Fukuma

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems 2006, 2006

Water Level Detection for River Surveillance utilizing JP2K Wavelet Transform.

Masahiro Iwahashi, Sakol Udomsiri, Yuji Imai, Shinji Fukuma

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems 2006, 2006

2005

A New Unified Lossless/Lossy Image Compression Based on a New Integer DCT.

Somchart Chokchaitam, Masahiro Iwahashi, Somchai Jitapunkul

IEICE Trans. Inf. Syst., 2005

A new structure of integer DCT least sensitive to finite word length expression of multipliers.

Masahiro Iwahashi, Dang Khoa Dang, Masahiro Ohnishi, Somchart Chokchaitam

Proceedings of the 2005 International Conference on Image Processing, 2005

2004

Optimum word length allocation of integer DCT and its error analysis.

Somchart Chokchaitam, Masahiro Iwahashi, Noriyoshi Kambayashi

Signal Process. Image Commun., 2004

Minrmum hardware implementation of multipliers of the lifting wavelet transform.

Yoshinobu Tonomura, Somchart Chokchaitam, Masahiro Iwahashi

Proceedings of the 2004 International Conference on Image Processing, 2004

Theoretical analysis on optimum word length assignment for integer dct.

Masahiro Iwahashi, Kohtaro Nakagawa, Somchart Chokchaitam, Yoshihide Tonomura

Proceedings of the 2004 International Conference on Image Processing, 2004

2003

Optimum word length allocation for multipliers of integer DCT.

Masahiro Iwahashi, Osamu Nishida, Somchart Chokchaitam, Noriyoshi Kambayashi

Proceedings of the 2003 International Symposium on Circuits and Systems, 2003

N stage non-separable two dimensional wavelet transform for reduction of rounding errors.

Masahiro Iwahashi, Munkhbaatar Delgermaa, Koji Ueno, Noriyoshi Kambayashi

Proceedings of the 2003 International Symposium on Circuits and Systems, 2003

2002

A Bit-Rate Adaptive Coding System Based on Lossless DCT.

Somchart Chokchaitam, Masahiro Iwahashi, Pavol Zavarsky, Noriyoshi Kambayashi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002

Performance Evaluation of Lossless/Lossy Wavelets for Image Compression under Lossless/Lossy Coding Criterion.

Somchart Chokchaitam, Masahiro Iwahashi

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002

Lossless/lossy coding gain to evaluate coding performance of the lossless/lossy wavelet.

Somchart Chokchaitam, Masahiro Iwahashi

Proceedings of the 2002 International Symposium on Circuits and Systems, 2002

Lossless/lossy image compression based on non-separable two-dimensional L-SSKF.

Somchart Chokchaitam, Masahiro Iwahashi

Proceedings of the 2002 International Symposium on Circuits and Systems, 2002

Lossless, near-lossless and lossy adaptive coding based on the lossless DCT.

Somchart Chokchaitam, Masahiro Iwahashi

Proceedings of the 2002 International Symposium on Circuits and Systems, 2002

2001

A signal reconstruction method based on an unwrapping of signals in transform domain.

Pavol Zavarsky, Noriyoshi Kambayashi, Somchart Chokchaitam, Masahiro Iwahashi, Masahiro Kamiya

Proceedings of the 2001 International Symposium on Circuits and Systems, 2001

1999

Bounds of biorthogonal decompositions and a lossless modification of signal-to-noise ratio.

Pavol Zavarsky, Takeshi Myoken, Noriyoshi Kambayashi, Masahiro Iwahashi, Shinji Fukuma

Proceedings of the ISSPA '99. Proceedings of the Fifth International Symposium on Signal Processing and its Applications, 1999

Lossless multi channel predictive coding for images.

Masahiro Iwahashi, Narong Buabthong, Somchart Chokchaitam, Noriyoshi Kambayashi

Proceedings of the 1999 International Symposium on Circuits and Systems, ISCAS 1999, Orlando, Florida, USA, May 30, 1999

Adaptive multi-channel prediction for lossless scalable coding.

Shinji Fukuma, Masahiro Iwahashi, Noriyoshi Kambayashi

Proceedings of the 1999 International Symposium on Circuits and Systems, ISCAS 1999, Orlando, Florida, USA, May 30, 1999

Lossless/Lossy Progressive Coding Based on Reversible Wavelet and Lossless Multi-Channel Prediction.

Masahiro Iwahashi, Shinji Fukuma, Somchart Chokchaitam, Noriyoshi Kambayashi

Proceedings of the 1999 International Conference on Image Processing, 1999

Inter Color and Inter Intra Band Prediction on Reversible Wavelet for Lossless Progressive Color Coding.

Masahiro Iwahashi, Shinji Fukuma, Narong Buabthong, Noriyoshi Kambayashi

Proceedings of the 1999 International Conference on Image Processing, 1999

1998

Optimization of two-channel linear prediction and its application to lossless-lossy coding.

Masahiro Iwahashi, Shinji Fukuma, Akira Hosotani, Noriyoshi Kambayashi

Syst. Comput. Jpn., 1998

1997

Lossless Coding of Still Images with Two Channel Prediction.

Masahiro Iwahashi, Shinji Fukuma, Noriyoshi Kambayashi

Proceedings of the Proceedings 1997 International Conference on Image Processing, 1997

Two Channel Non-Separable 2D Subband Coding and its Optimization.

Masahiro Iwahashi, Shinji Fukuma, Akira Hosotani, Noriyoshi Kambayashi

Proceedings of the Proceedings 1997 International Conference on Image Processing, 1997

1994

A development of symmetric extension method for subband image coding.

Hitoshi Kiya, Kiyoshi Nishikawa, Masahiro Iwahashi

IEEE Trans. Image Process., 1994

Design of Motion Compensation Filters for Frequency Scalable Coding - Drift Reduction.

Masahiro Iwahashi, Koichi Ohyama, Wataru Kameyama, Noriyoshi Kambayashi

Proceedings of the 1994 IEEE International Symposium on Circuits and Systems, ISCAS 1994, London, England, UK, May 30, 1994

Estimation of aliasing error in layered coding system.

Masahiro Iwahashi, Koichi Ohyama, Noriyoshi Kambayashi

Proceedings of ICASSP '94: IEEE International Conference on Acoustics, 1994