NDLI: Trilateral filter construction for depth map upsampling

Content Provider	IEEE Xplore Digital Library
Author	Jaekwang Kim Jaeho Lee Seungryong Han Dowan Kim Jongsul Min Changick Kim
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea (Jaekwang Kim; Jaeho Lee; Changick Kim) \|\| DMC R&D Center, Samsung Electron. Co., Suwon, South Korea (Seungryong Han; Dowan Kim; Jongsul Min)
Abstract	In recent years, fusion camera systems that consist of color cameras and Time-of-Flight (TOF) depth sensors have been popularly used due to its depth sensing capability at real-time frame rates. However, captured depth maps are limited in low resolution compared to the corresponding color images due to physical limitation of the TOF depth sensor. Although many algorithms have been proposed, they still yield erroneous results, especially when boundaries of the depth map and the color image are not aligned. We therefore propose a novel kernel regression framework to generate the high quality depth map. Our proposed filter is based on the vector pointing homogeneous pixels that represents the unit vector toward similar neighbors in the local region. The vectors are used to detect misaligned regions between color edges and depth edges. Experimental comparisons with other data fusion techniques prove the superiority of the proposed algorithm.
Sponsorship	IEEE Signal Process. Soc.
Starting Page	1
Ending Page	4
File Size	3078468
Page Count	4
File Format	PDF
ISBN	9781467358583
DOI	10.1109/IVMSPW.2013.6611911
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-10
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	TOF depth sensor Image resolution Image color analysis Image edge detection Depth map upsampling Fusion camera system Color Vectors Sensors Kernel Trilateral filter
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Mr. Siddhartha Mukherjee siddhartha@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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