32.2: Effect of Crosstalk in Multi‐View Autostereoscopic 3D Displays on Perceived Image Quality

Kaptein, Ronald G.; Heynderickx, Ingrid

doi:10.1889/1.2785530

Cited by 41 publications

(28 citation statements)

References 6 publications

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“…The lower image quality scores at the higher dimension level are most likely caused by a technological limitation of the display used; parts of the content displayed at high disparities become blurred due to crosstalk between the views. 22 The display used in the experiment is characterized by a large viewing zone for comfortable viewing, but has the drawback that it is limited in displaying extreme disparities without the perception of blur. The displays used in the experiments of IJsselsteijn et al 12,13 did not have such a drawback.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Influence of chroma variations on naturalness and image quality of stereoscopic images

Kuijsters

IJsselsteijn

Lambooij

et al. 2009

Human Vision and Electronic Imaging XIV

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The computational view on image quality of Janssen and Blommaert states that the quality of an image is determined by the degree to which the image is both useful (discriminability) and natural (identifiability). This theory is tested by creating two manipulations. Firstly, multiplication of the chroma values of each pixel with a constant in the CIELab color space, i.e., chroma manipulation, is expected to increase only the usefulness by increasing the distances between the individual color points, enhancing the contrast. Secondly, introducing stereoscopic depth by varying the screen disparity, i.e., depth manipulation, is expected to increase both the usefulness and the naturalness. Twenty participants assessed perceived image quality, perceived naturalness and perceived depth of the manipulated versions of two natural scenes. The results revealed a small, yet significant shift between image quality and naturalness as a function of the chroma manipulation. In line with previous research, preference in quality was shifted to higher chroma values in comparison to preference in naturalness. Introducing depth enhanced the naturalness scores, however, in contrast to our expectations, not the image quality scores. It is argued that image quality is not sufficient to evaluate the full experience of 3D. Image quality appears to be only one of the attributes underlying the naturalness of stereoscopic images.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Influence of chroma variations on naturalness and image quality of stereoscopic images

Kuijsters

IJsselsteijn

Lambooij

et al. 2009

Human Vision and Electronic Imaging XIV

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“…Especially in auto-stereoscopic systems, crosstalk can be quite high with levels up to 40%. 3 In the course of years, display resolutions of course get higher, making the resolution loss less visible. On the other hand, future auto-stereoscopic display systems may generate more and more views, thereby decreasing or canceling the effect of the native resolution increase.…”

Section: Introductionmentioning

confidence: 99%

Perception of detail in 3D images

Heynderickx

Kaptein

2009

SPIE Proceedings

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A lot of current 3D displays suffer from the fact that their spatial resolution is lower compared to their 2D counterparts. One reason for this is that the multiple views needed to generate 3D are often spatially multiplexed. Besides this, imperfect separation of the left-and right-eye view leads to blurring or ghosting, and therefore to a decrease in perceived sharpness. However, people watching stereoscopic videos have reported that the 3D scene contained more details, compared to the 2D scene with identical spatial resolution. This is an interesting notion, that has never been tested in a systematic and quantitative way. To investigate this effect, we had people compare the amount of detail ("detailedness") in pairs of 2D and 3D images. A blur filter was applied to one of the two images, and the blur level was varied using an adaptive staircase procedure. In this way, the blur threshold for which the 2D and 3D image contained perceptually the same amount of detail could be found. Our results show that the 3D image needed to be blurred more than the 2D image. This confirms the earlier qualitative findings that 3D images contain perceptually more details than 2D images with the same spatial resolution.

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“…The ANOVA analysis reveals that when the 'puzzle' scene is included, depth has a significant (negative) effect on image quality, whereas this effect is absent when the 'puzzle' scene is removed from the data set. This is most likely due to the fact that parts of the 'puzzle' scene, because of its properties, become very blurred due to the crosstalk between the views, 21 resulting in an interaction between blur level and depth level. This interaction effect is to a much lesser extent, if at all, present in the other three scenes.…”

Section: Resultsmentioning

confidence: 99%

“…Current autostereoscopic displays unavoidably have a lower resolution than a typical 2D display, and the different views are never fully separated in space (a phenomenon known as crosstalk 21 ) which leads to blurring and ghosting. These "3D quality" aspects negatively influence image quality.…”

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confidence: 99%

Performance evaluation of 3D-TV systems

et al. 2008

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The image quality circle is a commonly accepted framework to model the relation between the technology variables of a display and the resulting image quality. 3D-TV systems, however, go beyond the concept of image quality. Research has shown that, although 3D scenes are clearly more appreciated by subjects, the concept 'image quality' does not take this added value of depth into account. Concepts as 'naturalness' and 'viewing experience' have turned out to be more useful when assessing the overall performance of 3D displays. In this paper, experiments are described that test 'perceived depth', 'perceived image quality' and 'perceived naturalness' in images with different levels of blur and different depth levels. Results show that naturalness incorporates both blur level as well as depth level, while image quality does not include depth level. These results confirm that image quality is not a good measure to assess the overall performance of 3D displays. Naturalness is a more promising concept.

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32.2: Effect of Crosstalk in Multi‐View Autostereoscopic 3D Displays on Perceived Image Quality

Cited by 41 publications

References 6 publications

Influence of chroma variations on naturalness and image quality of stereoscopic images

Influence of chroma variations on naturalness and image quality of stereoscopic images

Perception of detail in 3D images

Performance evaluation of 3D-TV systems

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