METHOD AND APPARATUS FOR GENERATING HDR IMAGES

METHOD AND APPARATUS FOR GENERATING HDR IMAGES

A method for generating a high-dynamic-range (HDR) image using an imaging device is provided. The method includes capturing a long-exposure (LE) image, a short-exposure (SE) image, and an auto-exposure (AE) image of a scene, estimating motion information in the SE image and the LE image based on a r...

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Hauptverfasser: ALAPATI, Jayakrishna, BOREGOWDA, Lokesh Rayasandra, AHN, Eun-sun, DHIMAN, Ankit, PARAMESWARAN, Sankaranarayanan
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator ALAPATI, Jayakrishna
BOREGOWDA, Lokesh Rayasandra
AHN, Eun-sun
DHIMAN, Ankit
PARAMESWARAN, Sankaranarayanan
description A method for generating a high-dynamic-range (HDR) image using an imaging device is provided. The method includes capturing a long-exposure (LE) image, a short-exposure (SE) image, and an auto-exposure (AE) image of a scene, estimating motion information in the SE image and the LE image based on a reference image which is determined based on an image statistics parameter, aligning the SE image and the LE image using the motion information, generating a pixel-weight coefficient for each of the SE image, the LE image, and the AE image, generating an overlapped region mask corresponding to an overlapped region in each of the SE image, the LE image and the LE image, determining a modified pixel-weight coefficient in the overlapped region mask and correcting a brightness difference, and generating an HDR image from the SE image, the LE image and the AE image using the modified at least one pixel-weight coefficient.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title METHOD AND APPARATUS FOR GENERATING HDR IMAGES
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