Temporal synchronization in stereoscopic video: Influence on quality of experience and automatic asynchrony detection

Goldmann, Lutz; Lee, Jong-Seok; Ebrahimi, Touradj

doi:10.1109/icip.2010.5651142

Cited by 21 publications

(5 citation statements)

References 3 publications

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“…For (intra-media) synchronization quality of 3D stereoscopic videos, Goldmann et al [2010] evaluate four video samples with different scenes, all at a frame rate of 25 fps and a spatial resolution of 1920x1080. The authors claim that a skew below 80 ms leads to a good 3D visual quality, while a skew larger than 200 ms annoys the visual experience.…”

Section: Synchronization Perception Of New Mediamentioning

confidence: 99%

Evolution of temporal multimedia synchronization principles

Huang

Nahrstedt

Steinmetz

2013

ACM Trans. Multimedia Comput. Commun. Appl.

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The evolution of multimedia applications has drastically changed human life and behaviors. New communication technologies lead to new requirements for multimedia synchronization. This article presents a historical view of temporal synchronization studies focusing on continuous multimedia. We demonstrate how the development of multimedia systems has created new challenges for synchronization technologies. We conclude with a new application-dependent, multilocation, multirequirement synchronization framework to address these new challenges.

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Section: Synchronization Perception Of New Mediamentioning

confidence: 99%

Evolution of temporal multimedia synchronization principles

Huang

Nahrstedt

Steinmetz

2013

ACM Trans. Multimedia Comput. Commun. Appl.

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“…The researchers have studied the influence of temporal asynchrony on the subjective quality and found that an offset of more than 2 frames leads to a significant quality drop [2]. Another study addressed the problem of understanding the effect of brightness on the visual comfort and quality of 3D videos and observed that the quality increases as the brightness increases [3].…”

Section: Introductionmentioning

confidence: 97%

Visual discomfort induced by adjustment of convergence distance in stereoscopic video

Chen

Zhou

Sun

2013

2013 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)

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More and more stereoscopic film makers have begun to use fully integrated 3D camcorders. These 3D camcorders provide a stable shooting style and enable easy adjustment of the convergence point. In this paper, we analyzed the visual discomfort induced by adjustment of the convergence point in a video scene. We captured outdoor and indoor scenes and conducted a subjective assessment to investigate the degree of visual discomfort caused by the adjustment and the level of difficulty to recognize the variation of depth induced by the adjustment. As results of the subjective assessment, we observed that human eyes could be easily affected by sudden change of convergence point. But slowly gradual variation of convergence point will bring only little visual discomfort and it is really difficult for people to recognize the variation of depth even with rapid adjustment.

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“…Various 3D experiments demonstrate the effectiveness of the proposed method. [1] . 대표적으로 콘텐츠 자체를 분석해서 동기 오류를 검출하는 방법 [2] 으로 좌-우 영상의 시퀸스를 분석하 고, 두 영상 시퀀스에서 검출된 2D 특징 불변점들을 활용하 여 Dynamic Programming 기법을 통한 동기 오류를 검출하 는 방법을 제안하였다.…”

Section: Introductionunclassified

“…대표적으로 콘텐츠 자체를 분석해서 동기 오류를 검출하는 방법 [2] 으로 좌-우 영상의 시퀸스를 분석하 고, 두 영상 시퀀스에서 검출된 2D 특징 불변점들을 활용하 여 Dynamic Programming 기법을 통한 동기 오류를 검출하 는 방법을 제안하였다. 그리고 L. Goldmann 외 2명이 제안 한 논문에서는 CCA(Canonical Correlation Analysis)를 이 용한 방법이 소개되었다 [1] . 여기서는 동영상을 시간별로, 공간별로 분할한 뒤 각 타일의 매칭을 통해 동기 오류를 구하는 방법을 제안하며 시간적 동기가 맞지 않을 경우 스 테레오 영상 품질이 얼마나 달라지는가를 실험적 방법을 통해 제시하고 있다 [1,3] .…”

Section: Introductionunclassified

“…그리고 L. Goldmann 외 2명이 제안 한 논문에서는 CCA(Canonical Correlation Analysis)를 이 용한 방법이 소개되었다 [1] . 여기서는 동영상을 시간별로, 공간별로 분할한 뒤 각 타일의 매칭을 통해 동기 오류를 구하는 방법을 제안하며 시간적 동기가 맞지 않을 경우 스 테레오 영상 품질이 얼마나 달라지는가를 실험적 방법을 통해 제시하고 있다 [1,3] . …”

Section: Introductionunclassified

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Real-time Temporal Synchronization and Compensation in Stereoscopic Video

Kim¹,

Cho²,

Lee³

et al. 2013

Journal of Broadcast Engineering

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In this paper, we propose a real-time temporal synchronization and compensation algorithm in stereoscopic video. Many temporal asynchronies are caused in the video editing stage and due to different transmission delays. These temporal asynchronies can degrade the perceived 3D quality. The goal of temporal alignment is to detect and to measure the temporal asynchrony and recover synchronization of the two video streams. In order to recover synchronization of the two video streams, we developed a method to detect asynchronies between the left and the right video streams based on a novel spatiogram information, which is a richer representation, capturing not only the values of the pixels but their spatial relationships as well. The proposed novel spatiogram additionally includes the changes of the spatial color distribution. Furthermore, we propose a block-based method for detection of the pair frame instead of one frame-based method. Various 3D experiments demonstrate the effectiveness of the proposed method.

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Temporal synchronization in stereoscopic video: Influence on quality of experience and automatic asynchrony detection

Cited by 21 publications

References 3 publications

Evolution of temporal multimedia synchronization principles

Evolution of temporal multimedia synchronization principles

Visual discomfort induced by adjustment of convergence distance in stereoscopic video

Real-time Temporal Synchronization and Compensation in Stereoscopic Video

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