2015

Zhang, Jiachao; Hirakawa, Keigo; Jin, Xiaodan (2015): Quantile Analysis Of Image Sensor Noise Distribution. In: IEEE International Conference on Acoustics, Speech and Signal Processing, 2015. (Type: Inproceeding | Links | BibTeX)
Cheng, Wu; Hirakawa, Keigo (2015): Minimum Risk Wavelet Shrinkage Operator For Poisson Image Denoising. In: IEEE Transactions on Image Processing, 2015. (Type: Journal Article | Links | BibTeX)
Saad, Elhusain; Hirakawa, Keigo (2015): Improving SURF Interest Point Detection For Defocus Blur Robustness. In: Image Processing, 2015. ICIP 2015. IEEE International Conference on, IEEE 2015. (Type: Inproceeding | BibTeX)
Jia, Jie; Hirakawa, Keigo (2015): Single-Shot Fourier Transform Multispectroscopy. In: Image Processing, 2015. ICIP 2015. IEEE International Conference on, IEEE 2015. (Type: Inproceeding | BibTeX)
Zhang, Yi; Hirakawa, Keigo (2015): Fast Spatially Varying Object Motion Blur Estimation. In: Image Processing, 2015. ICIP 2015. IEEE International Conference on, IEEE 2015. (Type: Inproceeding | BibTeX)
Karam, Christina; Hirakawa, Keigo (2015): Stochastic Bilateral Filter For High-Dimensional Images. In: Image Processing, 2015. ICIP 2015. IEEE International Conference on, IEEE 2015. (Type: Inproceeding | BibTeX)
Cheng, Wu; Hirakawa, Keigo (2015): Nonparametric Empirical Bayes Estimation For Multiplicative Multiscale Innovation In Photon-Limited Imaging. In: Image Processing, 2015. ICIP 2015. IEEE International Conference on, IEEE 2015. (Type: Inproceeding | BibTeX)
Jia, Jie; Ni, Chuan; Sarangan, Andrew; Hirakawa, Keigo (2015): Fourier Multispectral Imaging. In: OSA Optics Express, ( ), pp. , 2015. (Type: Journal Article | Links | BibTeX)
Ni, Chuan; Jia, Jie; Hirakawa, Keigo; Sarangan, Andrew (2015): Design and fabrication of sinusoidal spectral filters for multispectral imaging. In: Nanoengineering: Fabrication, Properties, Optics, and Devices XII, SPIE, 2015. (Type: Inproceeding | Links | BibTeX)

2014

Jin Xiaodan; Xu, Zhenyu; Hirakawa Keigo (2014): Noise Parameter Estimation for Poisson Corrupted Images Using Variance Stabilization Transforms. In: IEEE Transactions on Image Processing, 2014. (Type: Journal Article | Links | BibTeX)
Lemaster, Daniel; Hirakawa, Keigo (2014): An improved microgrid arrangement for integrated imaging polarimeters. In: OSA Optics Letters, 2014. (Type: Journal Article | Links | BibTeX)
Korneliussen, Jan Tore; Hirakawa, Keigo (2014): Camera Processing With Chromatic Aberration. In: IEEE Transactions on Image Processing, 23 (10), pp. 4539-4552, 2014. (Type: Journal Article | Links | BibTeX)
Zhang, Chen; Hirakawa, Keigo (2014): Blind Full Reference Quality Assessment Of Poisson Image Denoising. In: IEEE International Conference on Image Processing, 2014. (Type: Inproceeding | Links | BibTeX)
Hirakawa, Keigo; Barnard, Kenneth (2014): Fourier Spectral Filter Array Design For Multispectral Image Recovery. In: Imaging and Applied Optics 2014, pp. IM1C.5, Optical Society of America, 2014. (Type: Inproceeding | Links | BibTeX)
Hirakawa, Keigo; LeMaster, Daniel (2014): Fourier domain design of microgrid imaging polarimeters with improved spatial resolution. In: SPIE Sensing Technology + Applications, pp. 909906–909906, 2014. (Type: Inproceeding | BibTeX)

2013

Zhang, Yi; Hirakawa, (2013): Blur Processing Using Double Discrete Wavelet Transform. In: Computer Vision and Pattern Recognition (CVPR), 2013 IEEE Conference on, pp. 1091-1098, 2013. (Type: Inproceeding | Links | BibTeX)
Pizurica, Aleksandra; Portilla, Javier; Hirakawa, Keigo; Egiazarian, Karen (2013): Advanced statistical tools for enhanced quality digital imaging with realistic capture models. In: EURASIP Journal on Advances in Signal Processing, 2013 (1), pp. 140, 2013. (Type: Journal Article | Links | BibTeX)
Jin, Xiaodan; Hirakawa, Keigo (2013): Approximations to camera sensor noise. In: IS&T/SPIE Electronic Imaging, pp. 86550H–86550H, International Society for Optics and Photonics 2013. (Type: Inproceeding | Links | BibTeX)
Zhu Kongfeng; Hirakawa, Keigo; Asari Vijayan; Saupe Dietmar (2013): A No-Reference Video Quality Assessment Based On Laplacian Pyramids. In: IEEE International Conference on Image Processing, 2013. (Type: Inproceeding | Links | BibTeX)

2012

Chakrabarti,; Hirakawa,; Zickler, (2012): Color Constancy with Spatio-Spectral Statistics. In: Pattern Analysis and Machine Intelligence, IEEE Transactions on, PP (99), pp. 1, 2012. (Type: Journal Article | Links | BibTeX)
Cheng,; Hirakawa., (2012): Corrupted Reference Image Quality Assessment. In: Image Processing (ICIP), 2012 19th IEEE International Conference on, 2012. (Type: Inproceeding | Links | BibTeX)
Jin, Xiaodan; Hirakawa, Keigo (2012): Analysis and Processing of Pixel Binning for Color Image Sensor. In: EURASIP Journal on Advances in Signal Processing, 2012 (1), pp. 125, 2012. (Type: Journal Article | Abstract | Links | BibTeX)

2011

Hirakawa,; Wolfe, (2011): “Rewiring” Filterbanks for Local Fourier Analysis: Theory and Practice. In: Information Theory, IEEE Transactions on, 57 (8), pp. 5360–5374, 2011. (Type: Journal Article | Links | BibTeX)
Ramachandra,; Hirakawa,; Zwicker,; Nguyen, (2011): Spatioangular Prefiltering for Multiview 3D Displays. In: Visualization and Computer Graphics, IEEE Transactions on, (99), pp. 1–1, 2011. (Type: Journal Article | Links | BibTeX)
Hirakawa,; Simon, (2011): Single-shot high dynamic range imaging with conventional camera hardware. In: Computer Vision (ICCV), 2011 IEEE International Conference on, pp. 1339 -1346, 2011. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Gu, Jing (2011): High resolution subpixel and subframe rendering for color flatpanel and projector displays. In: Image Processing (ICIP), 2011 18th IEEE International Conference on, pp. 1725 -1728, 2011. (Type: Inproceeding | Links | BibTeX)

2010

Hirakawa,; Wolfe, (2010): Optimal exposure control for high dynamic range imaging. In: Image Processing (ICIP), 2010 17th IEEE International Conference on, pp. 3137 -3140, 2010. (Type: Inproceeding | Links | BibTeX)
Gu, Jing; Wolfe,; Hirakawa, (2010): Filterbank-based universal demosaicking. In: Image Processing (ICIP), 2010 17th IEEE International Conference on, pp. 1981 -1984, 2010. (Type: Inproceeding | Links | BibTeX)
Hirakawa, (2010): Iterative Exposure Bracketing. In: Digital Image Processing and Analysis, Optical Society of America 2010. (Type: Inproceeding | Links | BibTeX)
Ramachandra,; Hirakawa,; Zwicker,; Nguyen, (2010): Spatio-angular sharpening for multiview 3D displays. In: Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, pp. 750 -753, 2010. (Type: Inproceeding | Links | BibTeX)

2009

Hirakawa,; Wolfe, (2009): Skellam shrinkage: Wavelet-based intensity estimation for inhomogeneous Poisson data. In: Information Theory, IEEE Transactions on, (99), pp. 1–1, 2009. (Type: Journal Article | Links | BibTeX)
Hirakawa,; Wolfe, (2009): Efficient multivariate Skellam shrinkage for denoising photon-limited image data: An Empirical Bayes approach. In: Image Processing (ICIP), 2009 16th IEEE International Conference on, pp. 2961 -2964, 2009. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Wolfe, (2009): SkellamShrink: Poisson intensity estimation for vector-valued data. In: Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on, pp. 3441 -3444, 2009. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Baqai,; Wolfe, (2009): Wavelet-based Poisson rate estimation using the Skellam distribution. In: Proc. SPIE, Electronic Imaging, 2009. (Type: Inproceeding | Links | BibTeX)

2008

Hirakawa,; Wolfe, (2008): Spatio-Spectral Color Filter Array Design for Optimal Image Recovery. In: Image Processing, IEEE Transactions on, 17 (10), pp. 1876 -1890, 2008. (Type: Journal Article | Links | BibTeX)
Hirakawa, (2008): Color filter array image analysis for joint denoising and demosaicking. In: Lukac, Rastislav (Ed.): Single-Sensor Imaging: Methods and Applications for Digital Cameras, pp. 239–261, 2008. (Type: Incollection | BibTeX)
Hirakawa,; Wolfe, (2008): Spatio-Spectral Sampling and Color Filter Array Design. In: Lukac, Rastislav (Ed.): Single-Sensor Imaging: Methods and Applications for Digital Cameras, 137 , CRC, 2008. (Type: Incollection | BibTeX)
Hirakawa, (2008): Cross-talk explained. In: Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on, pp. 677 -680, 2008. (Type: Inproceeding | Links | BibTeX)
Chakrabarti,; Hirakawa,; Zickler, (2008): Color constancy beyond bags of pixels. In: Computer Vision and Pattern Recognition, 2008. CVPR 2008. IEEE Conference on, pp. 1 -6, 2008. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Wolfe, (2008): Advancing the digital camera pipeline for mobile multimedia: Key challenges from a signal processing perspective. In: Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on, pp. 5332 -5335, 2008. (Type: Inproceeding | Links | BibTeX)
Chakrabarti,; Hirakawa, (2008): Effective separation of sparse and non-sparse image features for denoising. In: Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on, pp. 857 -860, 2008. (Type: Inproceeding | Links | BibTeX)
Hirakawa, (2008): Fourier and filterbank analyses of signal-dependent noise. In: Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on, pp. 3517 -3520, 2008. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Wolfe, (2008): Second-generation color filter array and demosaicking designs. In: Proc. of SPIE VCIP, 2008. (Type: Inproceeding | Links | BibTeX)

2007

Hirakawa,; Wolfe, (2007): Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity. In: Image Processing, 2007. ICIP 2007. IEEE International Conference on, pp. II -81 -II -84, 2007. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Wolfe, (2007): Fourier Domain Display Color Filter Array Design. In: Image Processing, 2007. ICIP 2007. IEEE International Conference on, pp. III -429 -III -432, 2007. (Type: Inproceeding | Links | BibTeX)
Hirakawa, (2007): Signal-dependent noise characterization in Haar filterbank representation. In: Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, pp. 47, 2007. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Meng, Xiao-Li; Wolfe, (2007): A Framework for wavelet-Based Analysis and Processing of Color Filter Array Images with Applications to Denoising and Demosaicing. In: Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on, pp. I-597 -I-600, 2007. (Type: Inproceeding | Links | BibTeX)

2006

Hirakawa,; Parks, (2006): Image denoising using total least squares. In: Image Processing, IEEE Transactions on, 15 (9), pp. 2730–2742, 2006. (Type: Journal Article | Links | BibTeX)
Hirakawa,; Parks, (2006): Joint demosaicing and denoising. In: Image Processing, IEEE Transactions on, 15 (8), pp. 2146–2157, 2006. (Type: Journal Article | Links | BibTeX)
Hirakawa, Keigo; Meng, Xiao-Li (2006): An Empirical Bayes Em-Wavelet Unification for Simultaneous Denoising, Interpolation, and/Or Demosaicing. In: Image Processing, 2006 IEEE International Conference on, pp. 1453 -1456, 2006. (Type: Inproceeding | Links | BibTeX)

2005

Hirakawa,; Parks, (2005): Adaptive homogeneity-directed demosaicing algorithm. In: Image Processing, IEEE Transactions on, 14 (3), pp. 360–369, 2005. (Type: Journal Article | Links | BibTeX)
Hirakawa,; Parks, (2005): Image Denoising for Signal-Dependent Noise. In: Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on, pp. 29 - 32, 2005. (Type: Inproceeding | Links | BibTeX)
Hirakawa,; Parks, (2005): Joint demosaicing and denoising. In: Image Processing, 2005. ICIP 2005. IEEE International Conference on, pp. III - 309-12, 2005. (Type: Inproceeding | BibTeX)
Hirakawa,; Parks, (2005): Chromatic adaptation and white-balance problem. In: Image Processing, 2005. ICIP 2005. IEEE International Conference on, pp. III - 984-7, 2005. (Type: Inproceeding | BibTeX)

2003

Hirakawa,; Parks, (2003): Adaptive homogeneity-directed demosaicing algorithm. In: Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on, pp. III - 669-72 vol.2, 2003. (Type: Inproceeding | BibTeX)