Digital Light Field Photography

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Digital Light Field Photography

Digital Light Field Photography written by Ren Ng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Development Of Airborne Light Field Photography

Development Of Airborne Light Field Photography written by Michael Dominick Yocius and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Aerial photography categories.

Light field photography offers a new approach to digitally captured images. These commercially available cameras are able to capture the 4D light field in a single image. This allows for a variety of image processing capabilities that traditional cameras do not offer. For example, the image can be digitally refocused after it is captured and its depth can be estimated. In terms of application, these capabilities could be beneficial on airborne platforms. However, a limitation of currently available light field cameras is that they are not fully functional at medium or long ranges. If these cameras were to capture light fields at longer ranges, they would have a practical application when mounted on low-flying aircrafts. This dissertation takes current light field photography techniques and modifies them so they work better to capture medium-range images. The majority of cameras that capture the 4D light field use a microlens array to modulate the incoming light before it hits the image sensor. Previous work using printed modulation masks garnered the same effect obtained by microlens arrays. This dissertation details the development of a modulation mask that has medium-range applications. A new way of extracting the 4D light field from raw images that uses a digital Fourier transform is presented. This method works for images captured with microlens arrays and printed mask cameras. Two prototype cameras were built and tested to demonstrate some of these concepts. The concepts demonstrated by these cameras could be used in the future designs of light field cameras.

Proceedings Of Acm Siggraph 2005

Proceedings Of Acm Siggraph 2005 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Computer graphics categories.

Dissertation Abstracts International

Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Dissertations, Academic categories.

Novel Methods For Manipulating And Combining Light Fields

Novel Methods For Manipulating And Combining Light Fields written by Billy Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Computational Photography

Computational Photography written by Saghi Hajisharif and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-18 with categories.

The introduction and recent advancements of computational photography have revolutionized the imaging industry. Computational photography is a combination of imaging techniques at the intersection of various fields such as optics, computer vision, and computer graphics. These methods enhance the capabilities of traditional digital photography by applying computational techniques both during and after the capturing process. This thesis targets two major subjects in this field: High Dynamic Range (HDR) image reconstruction and Light Field (LF) compressive capturing, compression, and real-time rendering. The first part of the thesis focuses on the HDR images that concurrently contain detailed information from the very dark shadows to the brightest areas in the scenes. One of the main contributions presented in this thesis is the development of a unified reconstruction algorithm for spatially variant exposures in a single image. This method is based on a camera noise model, and it simultaneously resamples, reconstructs, denoises, and demosaics the image while extending its dynamic range. Furthermore, the HDR reconstruction algorithm is extended to adapt to the local features of the image, as well as the noise statistics, to preserve the high-frequency edges during reconstruction. In the second part of this thesis, the research focus shifts to the acquisition, encoding, reconstruction, and rendering of light field images and videos in a real-time setting. Unlike traditional integral photography, a light field captures the information of the dynamic environment from all angles, all points in space, and all spectral wavelength and time. This thesis employs sparse representation to provide an end-to-end solution to the problem of encoding, real-time reconstruction, and rendering of high dimensional light field video data sets. These solutions are applied on various types of data sets, such as light fields captured with multi-camera systems or hand-held cameras equipped with micro-lens arrays, and spherical light fields. Finally, sparse representation of light fields was utilized for developing a single sensor light field video camera equipped with a color-coded mask. A new compressive sensing model is presented that is suitable for dynamic scenes with temporal coherency and is capable of reconstructing high-resolution light field videos.

Liverpool And Manchester Photographic Journal

Liverpool And Manchester Photographic Journal written by William Crookes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1897 with Photography categories.

Modern Photography

Modern Photography written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Photography categories.

I3d Acm Siggraph Symposium On Interactive 3d Graphics And Games

I3d Acm Siggraph Symposium On Interactive 3d Graphics And Games written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Computer graphics categories.

Mastering Dental Photography

Mastering Dental Photography written by Wolfgang Bengel and has been published by Quintessence Publishing (IL) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Medical categories.