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2016 IEEE International Conference on Computational Photography (ICCP)

13-15 May 2016

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  • [Front cover]

    Publication Year: 2016, Page(s): 1
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  • [Title page]

    Publication Year: 2016, Page(s): 1
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  • [Copyright notice]

    Publication Year: 2016, Page(s): 1
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  • Table of contents

    Publication Year: 2016, Page(s):iv - vii
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  • Campus map

    Publication Year: 2016, Page(s): viii
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  • Message from the chairs

    Publication Year: 2016, Page(s): ix
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  • Host institution

    Publication Year: 2016, Page(s): x
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  • Steering committee

    Publication Year: 2016, Page(s): xi
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  • Sponsors

    Publication Year: 2016, Page(s): xii
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  • Keynote speakers: Computational imaging: How much imaging — How much computation?

    Publication Year: 2016, Page(s):xiii - xviii
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (123 KB)

    This talk will discuss (from the viewpoint of a physicist with background in optical engineering and information) how much imaging and how much computing is (or should be) in computational imaging, aiming for high information efficiency. For an opticist the order of the keywords ¿¿¿computational imaging¿¿¿ is inverted: imaging is the first operation in the sequence, as optics does the encoding for... View full abstract»

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  • Posters & demos

    Publication Year: 2016, Page(s):xix - xxiii
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  • 3D reconstruction of mirror-type objects using efficient ray coding

    Publication Year: 2016, Page(s):1 - 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1758 KB) | HTML iconHTML

    Mirror-type specular objects are difficult to reconstruct: they do not possess their own appearance and the reflections from environment are view-dependent. In this paper, we present a novel computational imaging solution for reconstructing the mirror-type specular objects. Specifically, we adopt a two-layer liquid crystal display (LCD) setup to encode the illumination directions. We devise an eff... View full abstract»

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  • Correcting perceived perspective distortions using object specific planar transformations

    Publication Year: 2016, Page(s):1 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5038 KB) | HTML iconHTML Multimedia Media

    Distortions due to perspective projection is often described under the umbrella term of foreshortening in computer graphics and are treated the same way. However, a large body of literature from artists, perceptual psychologists and perception scientists have shown that the perception of these distortions is different in different situations. While the distortions themselves depend on both the dep... View full abstract»

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  • In-situ multi-view multi-scattering stochastic tomography

    Publication Year: 2016, Page(s):1 - 12
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1295 KB) | HTML iconHTML Multimedia Media

    To recover the three dimensional (3D) volumetric matter distribution in an object, the object is imaged from multiple directions and locations. Using these images, tomographic computations seek the distribution. When scattering is significant and under constrained irradiance, tomography must explicitly account for off-axis scattering. Furthermore, tomographic recovery must function when imaging is... View full abstract»

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  • Blind dehazing using internal patch recurrence

    Publication Year: 2016, Page(s):1 - 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2300 KB) | HTML iconHTML

    Images of outdoor scenes are often degraded by haze, fog and other scattering phenomena. In this paper we show how such images can be dehazed using internal patch recurrence. Small image patches tend to repeat abundantly inside a natural image, both within the same scale, as well as across different scales. This behavior has been used as a strong prior for image denoising, super-resolution, image ... View full abstract»

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  • Learning joint demosaicing and denoising based on sequential energy minimization

    Publication Year: 2016, Page(s):1 - 11
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1134 KB) | HTML iconHTML

    Demosaicing is an important first step for color image acquisition. For practical reasons, demosaicing algorithms have to be both efficient and yield high quality results in the presence of noise. The demosaicing problem poses several challenges, e.g. zippering and false color artifacts as well as edge blur. In this work, we introduce a novel learning based method that can overcome these challenge... View full abstract»

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  • 4D light field segmentation with spatial and angular consistencies

    Publication Year: 2016, Page(s):1 - 8
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (14344 KB) | HTML iconHTML

    In this paper, we describe a supervised four-dimensional (4D) light field segmentation method that uses a graph-cut algorithm. Since 4D light field data has implicit depth information and contains redundancy, it differs from simple 4D hyper-volume. In order to preserve redundancy, we define two neighboring ray types (spatial and angular) in light field data. To obtain higher segmentation accuracy,... View full abstract»

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  • Fast, high dynamic range light field processing for pattern recognition

    Publication Year: 2016, Page(s):1 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (935 KB) | HTML iconHTML

    We present a light field processing method to quickly produce an image for pattern recognition. Unlike processing for aesthetic purposes, our objective is not to produce the best-looking image, but to produce a recognizable image as fast as possible. By leveraging the recognition algorithm's dynamic range and robustness to optical defocus, we develop carefully-chosen tradeoffs to ensure recognitio... View full abstract»

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  • A picture is worth a billion bits: Real-time image reconstruction from dense binary threshold pixels

    Publication Year: 2016, Page(s):1 - 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (745 KB) | HTML iconHTML Multimedia Media

    The pursuit of smaller pixel sizes at ever increasing resolution in digital image sensors is mainly driven by the stringent price and form-factor requirements of sensors and optics in the cellular phone market. Recently, Eric Fossum proposed a novel concept of an image sensor with dense sub-diffraction limit one-bit pixels (jots), which can be considered a digital emulation of silver halide photog... View full abstract»

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  • High-speed imaging using CMOS image sensor with quasi pixel-wise exposure

    Publication Year: 2016, Page(s):1 - 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3326 KB) | HTML iconHTML Multimedia Media

    Several recent studies in compressive video sensing have realized scene capture beyond the fundamental trade-off limit between spatial resolution and temporal resolution using random space-time sampling. However, most of these studies showed results for higher frame rate video that were produced by simulation experiments or using an optically simulated random sampling camera, because there are cur... View full abstract»

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  • Towards flexible sheet cameras: Deformable lens arrays with intrinsic optical adaptation

    Publication Year: 2016, Page(s):1 - 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1537 KB) | HTML iconHTML

    We propose a framework for developing a new class of imaging systems that are thin and flexible. Such an imaging sheet can be flexed at will and wrapped around everyday objects to capture unconventional fields of view. Our approach is to use a lens array attached to a sheet with a 2D grid of pixels. A major challenge with this type of a system is that its sampling of the scene varies with the curv... View full abstract»

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  • Sensor-level privacy for thermal cameras

    Publication Year: 2016, Page(s):1 - 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1504 KB) | HTML iconHTML

    As cameras turn ubiquitous, balancing privacy and utility becomes crucial. To achieve both, we enforce privacy at the sensor level, as incident photons are converted into an electrical signal and then digitized into image measurements. We present sensor protocols and accompanying algorithms that degrade facial information for thermal sensors, where there is usually a clear distinction between huma... View full abstract»

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  • Do-it-yourself lighting design for product videography

    Publication Year: 2016, Page(s):1 - 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (506 KB) | HTML iconHTML Multimedia Media

    The growth of online marketplaces for selling goods has increased the need for product photography by novice users and consumers. Additionally, the increased use of online media and large-screen billboards promotes the adoption of videos for advertising, going beyond just using still imagery. Lighting is a key distinction between professional and casual product videography. Professionals use speci... View full abstract»

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  • White balance under mixed illumination using flash photography

    Publication Year: 2016, Page(s):1 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1807 KB) | HTML iconHTML Multimedia Media

    Real-world illumination is often a complex spatially-varying combination of multiple illuminants. In this work, we present a technique to white-balance images captured in such illumination by leveraging flash photography. Even though this problem is severely ill-posed, we show that using two images — captured with and without flash lighting — leads to a closed form solution for spatial... View full abstract»

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  • Single-shot diffuser-encoded light field imaging

    Publication Year: 2016, Page(s):1 - 11
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2462 KB) | HTML iconHTML

    We capture 4D light field data in a single 2D sensor image by encoding spatio-angular information into a speckle field (causticpattern) through a phase diffuser. Using wave-optics theory and a coherent phase retrieval method, we calibrate the system by measuring the diffuser surface height from through-focus images. Wave-optics theory further informs the design of system geometry such that a purel... View full abstract»

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