Keigo Hirakawa

Publication Activity (10 Years)

Years Active: 2003-2024
Publications (10 Years): 42

Top Topics

Multispectral Imaging

Wavelet Shrinkage

Bilateral Filter

Top Venues

IEEE Trans. Image Process.

IEEE Signal Process. Lett.

Publications

Kodai Kikuchi, Kohei Tomioka, Akira Honji, Takenobu Usui, Keigo Hirakawa, Kazuya Kitamura
Hardware Implementation of Low-latency Image Denoising with Wavelet Shrinkage and Noise2Noise-based Learning for Ultra-high Definition Cameras. ICCE (2024)
R. Wes Baldwin, Vijayan K. Asari, Keigo Hirakawa
Sign-Coded Exposure Sensing for Noise-Robust High-Speed Imaging. IEEE Trans. Computational Imaging 10 (2024)
R. Wes Baldwin, Ruixu Liu, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
Time-Ordered Recent Event (TORE) Volumes for Event Cameras. IEEE Trans. Pattern Anal. Mach. Intell. 45 (2) (2023)
Sarah Miller, Christina Karam, Achour Idoughi, Kodai Kikuchi, Keigo Hirakawa
A Bayesian Perspective on Noise2Noise: Theory and Extensions. ICASSP (2023)
Matthew Howard, Keigo Hirakawa
Event-Based Visual Microphone. ICASSP (2023)
R. Wes Baldwin, Vijayan K. Asari, Keigo Hirakawa
Sign-Coded Exposure Sensing for Noise-Robust High-Speed Imaging. CoRR (2023)
Hsuan Lin, Keigo Hirakawa
Data Driven Multiband Image Fusion That Preserves Wavelength-Specific Image Features. APSIPA ASC (2023)
Abigail Wolf, Shannon Brooks-Lehnert, Keigo Hirakawa
EBSnoR: Event-Based Snow Removal by Optimal Dwell Time Thresholding. CoRR (2022)
Yeejin Lee, Keigo Hirakawa
Lossless White Balance for Improved Lossless CFA Image and Video Compression. IEEE Trans. Image Process. 31 (2022)
Sarah Miller, Chen Zhang, Keigo Hirakawa
Multi-Resolution Aitchison Geometry Image Denoising for Low-Light Photography. IEEE Trans. Image Process. 30 (2021)
R. Wes Baldwin, Ruixu Liu, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
Time-Ordered Recent Event (TORE) Volumes for Event Cameras. CoRR (2021)
Christina Karam, Kenjiro Sugimoto, Keigo Hirakawa
Color-compressive bilateral filter and nonlocal means for high-dimensional images. J. Electronic Imaging 30 (2) (2021)
Yeejin Lee, Keigo Hirakawa
Lossless White Balance For Improved Lossless CFA Image and Video Compression. CoRR (2020)
R. Wes Baldwin, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
Event Probability Mask (EPM) and Event Denoising Convolutional Neural Network (EDnCNN) for Neuromorphic Cameras. CoRR (2020)
Yeejin Lee, Keigo Hirakawa
Shift-And-Decorrelate Lifting: CAMRA for Lossless Intra Frame CFA Video Compression. IEEE Signal Process. Lett. 27 (2020)
Mohammed Almatrafi, Raymond Baldwin, Kiyoharu Aizawa, Keigo Hirakawa
Distance Surface for Event-Based Optical Flow. IEEE Trans. Pattern Anal. Mach. Intell. 42 (7) (2020)
R. Wes Baldwin, Mohammed Almatrafi, Jason R. Kaufman, Vijayan K. Asari, Keigo Hirakawa
Inceptive Event Time-Surfaces for Object Classification Using Neuromorphic Cameras. CoRR (2020)
Elhusain Saad, Keigo Hirakawa
Improved photometric acceptance testing in image feature extraction tasks. J. Electronic Imaging 29 (4) (2020)
R. Wes Baldwin, Mohammed Almatrafi, Vijayan K. Asari, Keigo Hirakawa
Event Probability Mask (EPM) and Event Denoising Convolutional Neural Network (EDnCNN) for Neuromorphic Cameras. CVPR (2020)
Mohammed Almatrafi, Keigo Hirakawa
DAViS Camera Optical Flow. IEEE Trans. Computational Imaging 6 (2020)
Rei Narita, Keigo Hirakawa, Kiyoharu Aizawa
Optical Flow Based Line Drawing Frame Interpolation Using Distance Transform to Support Inbetweenings. ICIP (2019)
Chen Zhang, Wu Cheng, Keigo Hirakawa
Corrupted Reference Image Quality Assessment of Denoised Images. IEEE Trans. Image Process. 28 (4) (2019)
R. Wes Baldwin, Mohammed Almatrafi, Jason R. Kaufman, Vijayan K. Asari, Keigo Hirakawa
Inceptive Event Time-Surfaces for Object Classification Using Neuromorphic Cameras. ICIAR (2) (2019)
Christina Karam, Kenjiro Sugimoto, Keigo Hirakawa
Fast Convolutional Distance Transform. IEEE Signal Process. Lett. 26 (6) (2019)
Jamie Stanton, Keigo Hirakawa, Scott McCloskey
Detecting Image Forgery Based On Color Phenomenology. CVPR Workshops (2019)
Ruojun He, Yi Zhang, Keigo Hirakawa
Square Coded Aperture: A Large Aperture With Extended Depth Of Field. Computational Imaging (2018)
Jiachao Zhang, Jie Jia, Andong Sheng, Keigo Hirakawa
Pixel Binning for High Dynamic Range Color Image Sensor Using Square Sampling Lattice. IEEE Trans. Image Process. 27 (5) (2018)
Wu Cheng, Keigo Hirakawa
Towards Optimal Denoising of Image Contrast. IEEE Trans. Image Process. 27 (7) (2018)
Jiachao Zhang, Andong Sheng, Keigo Hirakawa
A Wavelet-GSM Approach to Demosaicking. IEEE Signal Process. Lett. 25 (6) (2018)
Christina Karam, Kenjiro Sugimoto, Keigo Hirakawa
Near-Constant Time Bilateral Filter for High Dimensional Images. ICIP (2018)
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
Camera-Aware Multi-Resolution Analysis for Raw Image Sensor Data Compression. IEEE Trans. Image Process. 27 (6) (2018)
Christina Karam, Keigo Hirakawa
Monte-Carlo Acceleration of Bilateral Filter and Non-Local Means. IEEE Trans. Image Process. 27 (3) (2018)
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
Joint Defogging and Demosaicking. IEEE Trans. Image Process. 26 (6) (2017)
Jiachao Zhang, Keigo Hirakawa
Improved Denoising via Poisson Mixture Modeling of Image Sensor Noise. IEEE Trans. Image Process. 26 (4) (2017)
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
Lossless compression of CFA sampled image using decorrelated Mallat wavelet packet decomposition. ICIP (2017)
Keigo Hirakawa
Fourier Multispectral Imaging: Measuring Spectra, One Sinusoid at a Time. CCIW (2017)
Elhusain Saad, Keigo Hirakawa
Defocus Blur-Invariant Scale-Space Feature Extractions. IEEE Trans. Image Process. 25 (7) (2016)
Yi Zhang, Keigo Hirakawa
Combining Inertial Measurements With Blind Image Deblurring Using Distance Transform. IEEE Trans. Computational Imaging 2 (3) (2016)
Yi Zhang, Keigo Hirakawa
Blind Deblurring and Denoising of Images Corrupted by Unidirectional Object Motion Blur and Sensor Noise. IEEE Trans. Image Process. 25 (9) (2016)
Yeejin Lee, Keigo Hirakawa, Truong Q. Nguyen
Joint Defogging and Demosaicking. CoRR (2016)
Jie Jia, Chuan Ni, Andrew Sarangan, Keigo Hirakawa
Guided Filter Demosaicking For Fourier Spectral Filter Array. Visual Information Processing and Communication (2016)
Jie Jia, Kenneth J. Barnard, Keigo Hirakawa
Fourier Spectral Filter Array for Optimal Multispectral Imaging. IEEE Trans. Image Process. 25 (4) (2016)
Wu Cheng, Keigo Hirakawa
Nonparametric empirical Bayes estimation for multiplicative multiscale innovation in photon-limited imaging. ICIP (2015)
Jiachao Zhang, Keigo Hirakawa, Xiaodan Jin
Quantile analysis of image sensor noise distribution. ICASSP (2015)
Christina Karam, Chong Chen, Keigo Hirakawa
Stochastic bilateral filter for high-dimensional images. ICIP (2015)
Elhusain Saad, Keigo Hirakawa
Improving surf interest point detection for defocus blur robustness. ICIP (2015)
Jie Jia, Keigo Hirakawa
Single-shot fourier transform multispectroscopy. ICIP (2015)
Wu Cheng, Keigo Hirakawa
Minimum Risk Wavelet Shrinkage Operator for Poisson Image Denoising. IEEE Trans. Image Process. 24 (5) (2015)
Yi Zhang, Keigo Hirakawa
Fast spatially varying object motion blur estimation. ICIP (2015)
Xiaodan Jin, Zhenyu Xu, Keigo Hirakawa
Noise Parameter Estimation for Poisson Corrupted Images Using Variance Stabilization Transforms. IEEE Trans. Image Process. 23 (3) (2014)
Chen Zhang, Keigo Hirakawa
Blind full reference quality assessment of poisson image denoising. ICIP (2014)
Jan Tore Korneliussen, Keigo Hirakawa
Camera Processing With Chromatic Aberration. IEEE Trans. Image Process. 23 (10) (2014)
Kongfeng Zhu, Keigo Hirakawa, Vijayan K. Asari, Dietmar Saupe
A no-reference video quality assessment based on Laplacian pyramids. ICIP (2013)
Xiaodan Jin, Keigo Hirakawa
Approximations to camera sensor noise. Image Processing: Algorithms and Systems (2013)
Yi Zhang, Keigo Hirakawa
Blur Processing Using Double Discrete Wavelet Transform. CVPR (2013)
Aleksandra Pizurica, Javier Portilla, Keigo Hirakawa, Karen O. Egiazarian
Advanced statistical tools for enhanced quality digital imaging with realistic capture models. EURASIP J. Adv. Signal Process. 2013 (2013)
Ayan Chakrabarti, Keigo Hirakawa, Todd E. Zickler
Color Constancy with Spatio-Spectral Statistics. IEEE Trans. Pattern Anal. Mach. Intell. 34 (8) (2012)
Xiaodan Jin, Keigo Hirakawa
Analysis and Processing of Pixel Binning for Color Image Sensor. EURASIP J. Adv. Signal Process. 2012 (2012)
Keigo Hirakawa, Patrick J. Wolfe
Skellam Shrinkage: Wavelet-Based Intensity Estimation for Inhomogeneous Poisson Data. IEEE Trans. Inf. Theory 58 (2) (2012)
Wu Cheng, Keigo Hirakawa
Corrupted reference image quality assessment. ICIP (2012)
Keigo Hirakawa, Jing Gu
High resolution subpixel and subframe rendering for color flatpanel and projector displays. ICIP (2011)
Keigo Hirakawa, Patrick J. Wolfe
"Rewiring" Filterbanks for Local Fourier Analysis: Theory and Practice. IEEE Trans. Inf. Theory 57 (8) (2011)
Vikas Ramachandra, Keigo Hirakawa, Matthias Zwicker, Truong Q. Nguyen
Spatioangular Prefiltering for Multiview 3D Displays. IEEE Trans. Vis. Comput. Graph. 17 (5) (2011)
Keigo Hirakawa, Paul M. Simon
Single-shot high dynamic range imaging with conventional camera hardware. ICCV (2011)
Jing Gu, Patrick J. Wolfe, Keigo Hirakawa
Filterbank-based universal demosaicking. ICIP (2010)
Vikas Ramachandra, Keigo Hirakawa, Matthias Zwicker, Truong Q. Nguyen
Spatio-angular sharpening for multiview 3D displays. ICASSP (2010)
Keigo Hirakawa, Patrick J. Wolfe
Optimal exposure control for high dynamic range imaging. ICIP (2010)
Keigo Hirakawa, Patrick J. Wolfe
"Rewiring" Filterbanks for Local Fourier Analysis: Theory and Practice CoRR (2009)
Keigo Hirakawa, Farhan A. Baqai, Patrick J. Wolfe
Wavelet-based Poisson rate estimation using the Skellam distribution. Computational Imaging (2009)
Keigo Hirakawa, Patrick J. Wolfe
Efficient multivariate Skellam shrinkage for denoising photon-limited image data: An Empirical Bayes approach. ICIP (2009)
Keigo Hirakawa, Patrick J. Wolfe
SkellamShrink: Poisson intensity estimation for vector-valued data. ICASSP (2009)
Keigo Hirakawa
Beyond the "Bag of Pixels" Paradigm: Spatio-Spectral Perspective in Multispectral Imaging. CGIV/MCS (2008)
Keigo Hirakawa, Patrick J. Wolfe
Advancing the digital camera pipeline for mobile multimedia: Key challenges from a signal processing perspective. ICASSP (2008)
Ayan Chakrabarti, Keigo Hirakawa, Todd E. Zickler
Color constancy beyond bags of pixels. CVPR (2008)
Keigo Hirakawa
Fourier and filterbank analyses of signal-dependent noise. ICASSP (2008)
Keigo Hirakawa
Cross-talk explained. ICIP (2008)
Keigo Hirakawa, Patrick J. Wolfe
Spatio-Spectral Color Filter Array Design for Optimal Image Recovery. IEEE Trans. Image Process. 17 (10) (2008)
Ayan Chakrabarti, Keigo Hirakawa
Effective separation of sparse and non-sparse image features for denoising. ICASSP (2008)
Keigo Hirakawa, Patrick J. Wolfe
Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity. ICIP (2) (2007)
Keigo Hirakawa, Patrick J. Wolfe
Fourier Domain Display Color Filter Array Design. ICIP (3) (2007)
Keigo Hirakawa, Xiao-Li Meng, Patrick J. Wolfe
A Framework for wavelet-Based Analysis and Processing of Color Filter Array Images with Applications to Denoising and Demosaicing. ICASSP (1) (2007)
Keigo Hirakawa, Thomas W. Parks
Image denoising using total least squares. IEEE Trans. Image Process. 15 (9) (2006)
Keigo Hirakawa, Thomas W. Parks
Joint demosaicing and denoising. IEEE Trans. Image Process. 15 (8) (2006)
Keigo Hirakawa, Xiao-Li Meng
An Empirical Bayes Em-Wavelet Unification for Simultaneous Denoising, Interpolation, and/Or Demosaicing. ICIP (2006)
Keigo Hirakawa, Thomas W. Parks
Image Denoising for Signal-Dependent Noise. ICASSP (2) (2005)
Keigo Hirakawa, Thomas W. Parks
Adaptive homogeneity-directed demosaicing algorithm. IEEE Trans. Image Process. 14 (3) (2005)
Keigo Hirakawa, Thomas W. Parks
Joint demosaicing and denoising. ICIP (3) (2005)
Keigo Hirakawa, Thomas W. Parks
Chromatic adaptation and white-balance problem. ICIP (3) (2005)
Keigo Hirakawa, Thomas W. Parks
Adaptive homogeneity-directed demosaicing algorithm. ICIP (3) (2003)