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Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F06%3A03124614" target="_blank" >RIV/68407700:21230/06:03124614 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Exposure time estimation for high dynamic range imaging with hand held camera

Popis výsledku v původním jazyce

The limited dynamic range of a camera may be extended by composing differently exposed images of the same scene. The nonlinear camera has to be calibrated radiometrically first. We show that the calibration process can be difficult for real cameras. Theimprovement can be achieved if linear 12-bit RAW images are used as offered by modern mid-class and professional cameras. The knowledge of exposure time positively affects the radiometric quality of the composed high dynamic range (HDR) image. This knowledge also helps in registration of differently exposed hand held shots. This contribution presents a new method for estimating exposure times from the histograms of images captured using a linear response camera or generated from a RAW image. The presented method does not require spatially aligned images. The actual process of HDR image composition needs perfectly aligned images on its input. We present a method for registering differently exposed images captured with a hand held camera.

Název v anglickém jazyce

Exposure time estimation for high dynamic range imaging with hand held camera

Popis výsledku anglicky

The limited dynamic range of a camera may be extended by composing differently exposed images of the same scene. The nonlinear camera has to be calibrated radiometrically first. We show that the calibration process can be difficult for real cameras. Theimprovement can be achieved if linear 12-bit RAW images are used as offered by modern mid-class and professional cameras. The knowledge of exposure time positively affects the radiometric quality of the composed high dynamic range (HDR) image. This knowledge also helps in registration of differently exposed hand held shots. This contribution presents a new method for estimating exposure times from the histograms of images captured using a linear response camera or generated from a RAW image. The presented method does not require spatially aligned images. The actual process of HDR image composition needs perfectly aligned images on its input. We present a method for registering differently exposed images captured with a hand held camera.

Druh

D - Stať ve sborníku

CEP obor

JD - Využití počítačů, robotika a její aplikace

OECD FORD obor

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Projekt

<a href="/cs/project/1M0567" target="_blank" >1M0567: Centrum aplikované kybernetiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

CVWW'06: Proceedings of the Computer Vision Winter Workshop 2006

ISBN

80-239-6530-1

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

76-81

Název nakladatele

Czech Society for Cybernetics and Informatics

Místo vydání

Praha

Místo konání akce

Telč

Datum konání akce

6. 2. 2006

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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