Results 21 to 30 of about 2,074,003 (278)

The Dynamic Photometric Stereo Method Using a Multi-Tap CMOS Image Sensor

open access: yesSensors, 2018
The photometric stereo method enables estimation of surface normals from images that have been captured using different but known lighting directions. The classical photometric stereo method requires at least three images to determine the normals in a ...
Takuya Yoda   +5 more
doaj   +1 more source

The Strange Case of Dame Mary May's tomb: The performative value of Reflectance Transformation Imaging and its use in deciphering the visual and biographical evidence of a late 17th-century portrait effigy

open access: yesInternet Archaeology, 2017
In 1676 Dame Mary May commissioned her tomb from John Bushnell, a famous Restoration sculptor, and placed it next to her pew in the chancel of St Nicholas' parish church, Mid-Lavant, West Sussex, where she worshipped until her death in 1681.
Jude Jones, Nicole Smith
doaj   +1 more source

Computational Tools for Stereo and Light Field Photography [PDF]

open access: yes, 2015
This thesis covers a broad part of the field of computational photography, including video stabilization and image warping techniques, introductions to light field photography and the conversion of monocular images and videos into stereoscopic 3D content.
Donatsch, Daniel
core   +2 more sources

Class, consumption and currency : commercial photography in mid-Victorian Scotland [PDF]

open access: yes, 2013
Electronic version excludes material for which permission has not been granted by the rights holderThis thesis examines a thirty year span in the history of Scottish photography, focusing on the rise of the commercial studio from 1851 to assess how ...
Laurence-Allen, Antonia
core   +2 more sources

A New Record of Pre-Columbian Engravings in Urubici (SC), Brazil using Polynomial Texture Mapping

open access: yesInternet Archaeology, 2015
In this article we evaluate the application of Polynomial Texture Mapping (PTM), a technique within Reflectance Transformation Imaging (RTI), to a group of pre-Columbian rock art panels in southern Brazil.
Philip Riris, Rafael Corteletti
doaj   +1 more source

Oxygen-saturation-related functional parameter as a biomarker for diabetes mellitus—extraction method and clinical validation

open access: yesFrontiers in Cell and Developmental Biology, 2023
Purpose: To develop a computational method for oxygen-saturation-related functional parameter analysis of retinal vessels based on traditional color fundus photography, and to explore their characteristic alterations in type 2 diabetes mellitus (DM ...
Jinze Zhang   +8 more
doaj   +1 more source

After Virtual Archaeology: Rethinking Archaeological Approaches to the Adoption of Digital Technology

open access: yesInternet Archaeology, 2017
In the 1980s archaeologists embraced the rapidly expanding field of computer modelling and visualisation as a vehicle for data exploration. Against this backdrop 'virtual archaeology' was conceived.
Gareth Beale, Paul Reilly
doaj   +1 more source

Unfolding the act of photography [PDF]

open access: yes, 2014
This thesis discusses the multifaceted status of the photograph, as a contribution to understanding the mechanics of the production of meaning within the photograph.
Kantas, Vasileios
core   +5 more sources

Deep Chain HDRI: Reconstructing a High Dynamic Range Image from a Single Low Dynamic Range Image

open access: yesIEEE Access, 2018
Recently, high dynamic range (HDR) imaging has attracted much attention as a technology to reflect human visual characteristics owing to the development of the display and camera technology.
Siyeong Lee, Gwon Hwan An, Suk-Ju Kang
doaj   +1 more source

Experimental Platforms for Computational Photography [PDF]

open access: yesIEEE Computer Graphics and Applications, 2010
In this article, take a look at the lack of experimental platforms for computational photography (that is, cameras that are programmable), and talk about one possible solution-the Frankencamera architecture designed in the laboratory at Stanford as part of our Camera 2.0 project.
openaire   +3 more sources

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