Keigo Hirakawa

98 papers A* 5B 17C 1Misc 8Journal 49Unranked 18
YearRankTypeTitle / Venue / Authors
2026 J jnl
EBSnoR: Event-Based Snow Removal by Optimal Dwell Time Thresholding.
IEEE Trans. Pattern Anal. Mach. Intell.
Abigail Wolf, Osama Alsattam, Shannon Brooks-Lehnert, Keigo Hirakawa
2025 — conf
Cross-Camera Module Training of Raw Sensor Data-Based Automotive Machine Vision: Challenges and Solutions.
ICCVW
Setareh Kian, Shannon Brooks-Lehnert, Keigo Hirakawa
2025 A* conf
EBS-EKF: Accurate and High Frequency Event-based Star Tracking.
CVPR
Albert W. Reed, Connor Hashemi, Dennis Melamed, Nitesh Menon, Keigo Hirakawa, Scott McCloskey
2025 J jnl
EBS-EKF: Accurate and High Frequency Event-based Star Tracking.
CoRR
Albert W. Reed, Connor Hashemi, Dennis Melamed, Nitesh Menon, Keigo Hirakawa, Scott McCloskey
2025 — conf
Enhancing Event-Based Optical Camera Communication Via Dynamic Timing Correction.
ICCVW
Matthew Howard, Keigo Hirakawa
2025 J jnl
Event-Based Visual Microphone Based on Specular Reflections Off Angularly Deformed Surfaces.
IEEE Trans. Pattern Anal. Mach. Intell.
Matthew Howard, Ryan Jones, Keigo Hirakawa
2025 J jnl
Hardware Implementation of Low-Latency Image Denoising With Noise2Noise-Extended Learning for Ultra-High Definition Cameras.
IEEE Consumer Electron. Mag.
Kodai Kikuchi, Kohei Tomioka, Akira Honji, Takenobu Usui, Kazuya Kitamura, Keigo Hirakawa
2025 J jnl
LMP-GAN: Out-of-Distribution Detection for Non-Control Data Malware Attacks.
IEEE Trans. Pattern Anal. Mach. Intell.
David Wood, David Kapp, Temesguen Messay Kebede, Keigo Hirakawa
2025 J jnl
Stokes Simplex Modeling for Polarization Image Denoising.
IEEE Trans. Image Process.
Joseph Raffoul, Daniel A. LeMaster, Bradley M. Ratliff, Keigo Hirakawa
2024 C conf
Hardware Implementation of Low-latency Image Denoising with Wavelet Shrinkage and Noise2Noise-based Learning for Ultra-high Definition Cameras.
ICCE
Kodai Kikuchi, Kohei Tomioka, Akira Honji, Takenobu Usui, Keigo Hirakawa, Kazuya Kitamura
2024 J jnl
Sign-Coded Exposure Sensing for Noise-Robust High-Speed Imaging.
IEEE Trans. Computational Imaging
R. Wes Baldwin, Vijayan K. Asari, Keigo Hirakawa
2023 Misc conf
A Bayesian Perspective on Noise2Noise: Theory and Extensions.
ICASSP
Sarah Miller, Christina Karam, Achour Idoughi, Kodai Kikuchi, Keigo Hirakawa
2023 — conf
Data Driven Multiband Image Fusion That Preserves Wavelength-Specific Image Features.
APSIPA ASC
Hsuan Lin, Keigo Hirakawa
2023 Misc conf
Event-Based Visual Microphone.
ICASSP
Matthew Howard, Keigo Hirakawa
2023 J jnl
Sign-Coded Exposure Sensing for Noise-Robust High-Speed Imaging.
CoRR
R. Wes Baldwin, Vijayan K. Asari, Keigo Hirakawa
2023 J jnl
Time-Ordered Recent Event (TORE) Volumes for Event Cameras.
IEEE Trans. Pattern Anal. Mach. Intell.
R. Wes Baldwin, Ruixu Liu, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
2022 J jnl
EBSnoR: Event-Based Snow Removal by Optimal Dwell Time Thresholding.
CoRR
Abigail Wolf, Shannon Brooks-Lehnert, Keigo Hirakawa
2022 J jnl
Lossless White Balance for Improved Lossless CFA Image and Video Compression.
IEEE Trans. Image Process.
Yeejin Lee, Keigo Hirakawa
2021 J jnl
Color-compressive bilateral filter and nonlocal means for high-dimensional images.
J. Electronic Imaging
Christina Karam, Kenjiro Sugimoto, Keigo Hirakawa
2021 J jnl
Multi-Resolution Aitchison Geometry Image Denoising for Low-Light Photography.
IEEE Trans. Image Process.
Sarah Miller, Chen Zhang, Keigo Hirakawa
2021 J jnl
Time-Ordered Recent Event (TORE) Volumes for Event Cameras.
CoRR
R. Wes Baldwin, Ruixu Liu, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
2020 J jnl
DAViS Camera Optical Flow.
IEEE Trans. Computational Imaging
Mohammed Almatrafi, Keigo Hirakawa
2020 J jnl
Distance Surface for Event-Based Optical Flow.
IEEE Trans. Pattern Anal. Mach. Intell.
Mohammed Almatrafi, Raymond Baldwin, Kiyoharu Aizawa, Keigo Hirakawa
2020 A* conf
Event Probability Mask (EPM) and Event Denoising Convolutional Neural Network (EDnCNN) for Neuromorphic Cameras.
CVPR
R. Wes Baldwin, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
2020 J jnl
Event Probability Mask (EPM) and Event Denoising Convolutional Neural Network (EDnCNN) for Neuromorphic Cameras.
CoRR
R. Wes Baldwin, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
2020 J jnl
Improved photometric acceptance testing in image feature extraction tasks.
J. Electronic Imaging
Elhusain Saad, Keigo Hirakawa
2020 J jnl
Inceptive Event Time-Surfaces for Object Classification Using Neuromorphic Cameras.
CoRR
R. Wes Baldwin, Mohammed Almatrafi, Jason R. Kaufman, Vijayan K. Asari, Keigo Hirakawa
2020 J jnl
Lossless White Balance For Improved Lossless CFA Image and Video Compression.
CoRR
Yeejin Lee, Keigo Hirakawa
2020 J jnl
Shift-And-Decorrelate Lifting: CAMRA for Lossless Intra Frame CFA Video Compression.
IEEE Signal Process. Lett.
Yeejin Lee, Keigo Hirakawa
2019 J jnl
Corrupted Reference Image Quality Assessment of Denoised Images.
IEEE Trans. Image Process.
Chen Zhang, Wu Cheng, Keigo Hirakawa
2019 — conf
Detecting Image Forgery Based On Color Phenomenology.
CVPR Workshops
Jamie Stanton, Keigo Hirakawa, Scott McCloskey
2019 J jnl
Fast Convolutional Distance Transform.
IEEE Signal Process. Lett.
Christina Karam, Kenjiro Sugimoto, Keigo Hirakawa
2019 — conf
Inceptive Event Time-Surfaces for Object Classification Using Neuromorphic Cameras.
ICIAR (2)
R. Wes Baldwin, Mohammed Almatrafi, Jason R. Kaufman, Vijayan K. Asari, Keigo Hirakawa
2019 B conf
Optical Flow Based Line Drawing Frame Interpolation Using Distance Transform to Support Inbetweenings.
ICIP
Rei Narita, Keigo Hirakawa, Kiyoharu Aizawa
2018 J jnl
A Wavelet-GSM Approach to Demosaicking.
IEEE Signal Process. Lett.
Jiachao Zhang, Andong Sheng, Keigo Hirakawa
2018 J jnl
Camera-Aware Multi-Resolution Analysis for Raw Image Sensor Data Compression.
IEEE Trans. Image Process.
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
2018 J jnl
Monte-Carlo Acceleration of Bilateral Filter and Non-Local Means.
IEEE Trans. Image Process.
Christina Karam, Keigo Hirakawa
2018 B conf
Near-Constant Time Bilateral Filter for High Dimensional Images.
ICIP
Christina Karam, Kenjiro Sugimoto, Keigo Hirakawa
2018 J jnl
Pixel Binning for High Dynamic Range Color Image Sensor Using Square Sampling Lattice.
IEEE Trans. Image Process.
Jiachao Zhang, Jie Jia, Andong Sheng, Keigo Hirakawa
2018 — conf
Square Coded Aperture: A Large Aperture With Extended Depth Of Field.
Computational Imaging
Ruojun He, Yi Zhang, Keigo Hirakawa
2018 J jnl
Towards Optimal Denoising of Image Contrast.
IEEE Trans. Image Process.
Wu Cheng, Keigo Hirakawa
2017 — conf
Fourier Multispectral Imaging: Measuring Spectra, One Sinusoid at a Time.
CCIW
Keigo Hirakawa
2017 J jnl
Improved Denoising via Poisson Mixture Modeling of Image Sensor Noise.
IEEE Trans. Image Process.
Jiachao Zhang, Keigo Hirakawa
2017 J jnl
Joint Defogging and Demosaicking.
IEEE Trans. Image Process.
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
2017 B conf
Lossless compression of CFA sampled image using decorrelated Mallat wavelet packet decomposition.
ICIP
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
2016 J jnl
Blind Deblurring and Denoising of Images Corrupted by Unidirectional Object Motion Blur and Sensor Noise.
IEEE Trans. Image Process.
Yi Zhang, Keigo Hirakawa
2016 J jnl
Combining Inertial Measurements With Blind Image Deblurring Using Distance Transform.
IEEE Trans. Computational Imaging
Yi Zhang, Keigo Hirakawa
2016 J jnl
Defocus Blur-Invariant Scale-Space Feature Extractions.
IEEE Trans. Image Process.
Elhusain Saad, Keigo Hirakawa
2016 J jnl
Fourier Spectral Filter Array for Optimal Multispectral Imaging.
IEEE Trans. Image Process.
Jie Jia, Kenneth J. Barnard, Keigo Hirakawa
2016 — conf
Guided Filter Demosaicking For Fourier Spectral Filter Array.
Visual Information Processing and Communication
Jie Jia, Chuan Ni, Andrew Sarangan, Keigo Hirakawa
2016 J jnl
Joint Defogging and Demosaicking.
CoRR
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
2015 B conf
Fast spatially varying object motion blur estimation.
ICIP
Yi Zhang, Keigo Hirakawa
2015 B conf
Improving surf interest point detection for defocus blur robustness.
ICIP
Elhusain Saad, Keigo Hirakawa
2015 J jnl
Minimum Risk Wavelet Shrinkage Operator for Poisson Image Denoising.
IEEE Trans. Image Process.
Wu Cheng, Keigo Hirakawa
2015 B conf
Nonparametric empirical Bayes estimation for multiplicative multiscale innovation in photon-limited imaging.
ICIP
Wu Cheng, Keigo Hirakawa
2015 Misc conf
Quantile analysis of image sensor noise distribution.
ICASSP
Jiachao Zhang, Keigo Hirakawa, Xiaodan Jin
2015 B conf
Single-shot fourier transform multispectroscopy.
ICIP
Jie Jia, Keigo Hirakawa
2015 B conf
Stochastic bilateral filter for high-dimensional images.
ICIP
Christina Karam, Chong Chen, Keigo Hirakawa
2014 B conf
Blind full reference quality assessment of poisson image denoising.
ICIP
Chen Zhang, Keigo Hirakawa
2014 J jnl
Camera Processing With Chromatic Aberration.
IEEE Trans. Image Process.
Jan Tore Korneliussen, Keigo Hirakawa
2014 J jnl
Noise Parameter Estimation for Poisson Corrupted Images Using Variance Stabilization Transforms.
IEEE Trans. Image Process.
Xiaodan Jin, Zhenyu Xu, Keigo Hirakawa
2013 B conf
A no-reference video quality assessment based on Laplacian pyramids.
ICIP
Kongfeng Zhu, Keigo Hirakawa, Vijayan K. Asari, Dietmar Saupe
2013 J jnl
Advanced statistical tools for enhanced quality digital imaging with realistic capture models.
EURASIP J. Adv. Signal Process.
Aleksandra Pizurica, Javier Portilla, Keigo Hirakawa, Karen O. Egiazarian
2013 — conf
Approximations to camera sensor noise.
Image Processing: Algorithms and Systems
Xiaodan Jin, Keigo Hirakawa
2013 A* conf
Blur Processing Using Double Discrete Wavelet Transform.
CVPR
Yi Zhang, Keigo Hirakawa
2012 J jnl
Analysis and Processing of Pixel Binning for Color Image Sensor.
EURASIP J. Adv. Signal Process.
Xiaodan Jin, Keigo Hirakawa
2012 J jnl
Color Constancy with Spatio-Spectral Statistics.
IEEE Trans. Pattern Anal. Mach. Intell.
Ayan Chakrabarti, Keigo Hirakawa, Todd E. Zickler
2012 B conf
Corrupted reference image quality assessment.
ICIP
Wu Cheng, Keigo Hirakawa
2012 J jnl
Skellam Shrinkage: Wavelet-Based Intensity Estimation for Inhomogeneous Poisson Data.
IEEE Trans. Inf. Theory
Keigo Hirakawa, Patrick J. Wolfe
2011 J jnl
"Rewiring" Filterbanks for Local Fourier Analysis: Theory and Practice.
IEEE Trans. Inf. Theory
Keigo Hirakawa, Patrick J. Wolfe
2011 B conf
High resolution subpixel and subframe rendering for color flatpanel and projector displays.
ICIP
Keigo Hirakawa, Jing Gu
2011 A* conf
Single-shot high dynamic range imaging with conventional camera hardware.
ICCV
Keigo Hirakawa, Paul M. Simon
2011 J jnl
Spatioangular Prefiltering for Multiview 3D Displays.
IEEE Trans. Vis. Comput. Graph.
Vikas Ramachandra, Keigo Hirakawa, Matthias Zwicker, Truong Q. Nguyen
2010 B conf
Filterbank-based universal demosaicking.
ICIP
Jing Gu, Patrick J. Wolfe, Keigo Hirakawa
2010 B conf
Optimal exposure control for high dynamic range imaging.
ICIP
Keigo Hirakawa, Patrick J. Wolfe
2010 Misc conf
Spatio-angular sharpening for multiview 3D displays.
ICASSP
Vikas Ramachandra, Keigo Hirakawa, Matthias Zwicker, Truong Q. Nguyen
2009 J jnl
"Rewiring" Filterbanks for Local Fourier Analysis: Theory and Practice
CoRR
Keigo Hirakawa, Patrick J. Wolfe
2009 B conf
Efficient multivariate Skellam shrinkage for denoising photon-limited image data: An Empirical Bayes approach.
ICIP
Keigo Hirakawa, Patrick J. Wolfe
2009 Misc conf
SkellamShrink: Poisson intensity estimation for vector-valued data.
ICASSP
Keigo Hirakawa, Patrick J. Wolfe
2009 — conf
Wavelet-based Poisson rate estimation using the Skellam distribution.
Computational Imaging
Keigo Hirakawa, Farhan A. Baqai, Patrick J. Wolfe
2008 Misc conf
Advancing the digital camera pipeline for mobile multimedia: Key challenges from a signal processing perspective.
ICASSP
Keigo Hirakawa, Patrick J. Wolfe
2008 — conf
Beyond the "Bag of Pixels" Paradigm: Spatio-Spectral Perspective in Multispectral Imaging.
CGIV/MCS
Keigo Hirakawa
2008 A* conf
Color constancy beyond bags of pixels.
CVPR
Ayan Chakrabarti, Keigo Hirakawa, Todd E. Zickler
2008 B conf
Cross-talk explained.
ICIP
Keigo Hirakawa
2008 Misc conf
Effective separation of sparse and non-sparse image features for denoising.
ICASSP
Ayan Chakrabarti, Keigo Hirakawa
2008 Misc conf
Fourier and filterbank analyses of signal-dependent noise.
ICASSP
Keigo Hirakawa
2008 J jnl
Spatio-Spectral Color Filter Array Design for Optimal Image Recovery.
IEEE Trans. Image Process.
Keigo Hirakawa, Patrick J. Wolfe
2007 — conf
A Framework for wavelet-Based Analysis and Processing of Color Filter Array Images with Applications to Denoising and Demosaicing.
ICASSP (1)
Keigo Hirakawa, Xiao-Li Meng, Patrick J. Wolfe
2007 — conf
Fourier Domain Display Color Filter Array Design.
ICIP (3)
Keigo Hirakawa, Patrick J. Wolfe
2007 — conf
Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity.
ICIP (2)
Keigo Hirakawa, Patrick J. Wolfe
2006 B conf
An Empirical Bayes Em-Wavelet Unification for Simultaneous Denoising, Interpolation, and/Or Demosaicing.
ICIP
Keigo Hirakawa, Xiao-Li Meng
2006 J jnl
Image denoising using total least squares.
IEEE Trans. Image Process.
Keigo Hirakawa, Thomas W. Parks
2006 J jnl
Joint demosaicing and denoising.
IEEE Trans. Image Process.
Keigo Hirakawa, Thomas W. Parks
2005 J jnl
Adaptive homogeneity-directed demosaicing algorithm.
IEEE Trans. Image Process.
Keigo Hirakawa, Thomas W. Parks
2005 — conf
Chromatic adaptation and white-balance problem.
ICIP (3)
Keigo Hirakawa, Thomas W. Parks
2005 — conf
Image Denoising for Signal-Dependent Noise.
ICASSP (2)
Keigo Hirakawa, Thomas W. Parks
2005 — conf
Joint demosaicing and denoising.
ICIP (3)
Keigo Hirakawa, Thomas W. Parks
2003 — conf
Adaptive homogeneity-directed demosaicing algorithm.
ICIP (3)
Keigo Hirakawa, Thomas W. Parks