Abstract:
The demand for ultra-high-definition television (UHDTV) content is increasing rapidly every year owing to the prevalence of 4K TV sets and the launch of 4K/8K broadcastin...Show MoreMetadata
Abstract:
The demand for ultra-high-definition television (UHDTV) content is increasing rapidly every year owing to the prevalence of 4K TV sets and the launch of 4K/8K broadcasting services. In UHDTV content production, the difficulty of focusing high-resolution cameras has become one of the most critical issues. We previously proposed a focus-aid signal for use in 8K UHDTV cameras, which facilitated precise focusing using a low-resolution viewfinder. However, the signal visibility degraded when an image included sparse noise. In this paper, we describe an effective sparse noise reduction technique based on an improved maximum value filter in the focus-aid signal generation circuit. The improved focus-aid signal technique has also been applied in focus-assistance units in 4K cameras and UHDTV content production.
Published in: 2016 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)
Date of Conference: 01-03 June 2016
Date Added to IEEE Xplore: 28 July 2016
ISBN Information:
Electronic ISSN: 2155-5052
Citations are not available for this document.
Contents Cites in Papers - |
Cites in Papers - IEEE (1)
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1.
Takahiro Yamasaki, Tomohiro Nakamura, Ryohei Funatsu, Hiroshi Shimamoto, "Hybrid autofocus system by using a combination of the sensor-based phase-difference detection and focus-aid signal", 2018 IEEE International Conference on Consumer Electronics (ICCE), pp.1-2, 2018.
Cites in Papers - Other Publishers (2)
1.
Kodai Kikuchi, Ryohei Funatsu, Tomohiro Nakamura, Kohei Tomioka, Takayuki Yamashita, "A UHDTV Camera System With Multiplane Phase-Detection Autofocus", SMPTE Motion Imaging Journal, vol.132, no.2, pp.32-39, 2023.
2.
Kodai Kikuchi, Ryohei Funatsu, Tomohiro Nakamura, Toshio Yasue, Kohei Tomioka, Takayuki Yamashita, "8K Camera System with Multi-plane Phase-detection Autofocus", SMPTE 2021 Annual Technical Conference, pp.1-9, 2021.
