Electric‐field‐driven LC lens for 3‐D/2‐D autostereoscopic display

Hong, Hyungki; Jung, Sung‐Min; Lee, ByungJu; Shin, Hyungsoon

doi:10.1889/jsid17.5.399

Cited by 39 publications

(21 citation statements)

References 8 publications

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“…These 3D applications are based on 3D technologies requiring a special eyeglass. After the commercialization of 3D using the special eyeglass, research on autostereoscopic 3D is under way to remove the discomfort of wearing special eyeglass …”

Section: Introductionmentioning

confidence: 99%

Visual evaluation of 3D image quality by viewer unexperienced in viewing autostereoscopic 3D

Lee

Yeo²,

Hong³

2018

J Soc Info Display

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Viewing positions of autostereoscopic 3D affect the observed 3D image quality. The response of the people who had little experience in viewing autostereoscopic 3D was investigated. Thirty participants with the normal stereoscopic vision were selected and took the visual evaluation of autostereoscopic 3D at the various viewing positions. Photograph was also taken for the quantitative analysis of the viewing zone characteristics and the uniformity of 3D screen of autostereoscopic 3D. In visual evaluation, the larger difference of good and bad 3D image quality was observed at the viewing distance of 300 cm than at other viewing distance. This result and the periodic trends accorded with the analysis of photos at various camera positions. From these, we found that even the unexperienced viewer can correctly evaluate whether 3D image quality is good or bad.

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Section: Introductionmentioning

confidence: 99%

Visual evaluation of 3D image quality by viewer unexperienced in viewing autostereoscopic 3D

Lee

Yeo²,

Hong³

2018

J Soc Info Display

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“…Auto‐stereoscopic multi‐view 3D is a 3D technology with which the user can perceive the stereoscopic image without special eyeglasses as reported in multiple studies . Some studies reported various evaluation and measurement methods for 3D …”

Section: Introductionmentioning

confidence: 99%

Effect of 3D depth on the resolution and the observed image for auto‐stereoscopic multi‐view 3D display

Hong

2018

J Soc Info Display

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In auto‐stereoscopic multi‐views, blurring occurs due to the incomplete separation of views for non‐zero depths. How this blur affects a 3D image was investigated using the commercial multi‐view 3D. The 3D input signal consisted of the square pattern and the gratings of various width and gray level values of G1 and G2. The various combinations of G1 and G2 were used to investigate the dependence of blur on gray G1 and G2 values. The 3D depth caused blurring, which caused a decrease in contrast modulation. Hence, the 3D resolution determined from contrast modulation was affected by the depth and became worse with increasing depth. Therefore, 3D resolution may be used to define the depth range within which the image degradation due to blurring is acceptable. Blur edge width values at the boundaries of gray G1 and G2 were measured and found to be similar irrespective of G1 and G2 values at the same depth. This was because blur was caused by the incomplete separation of views that are independent of G1 and G2. Hence, the blurriness of the observed 3D image is determined only by the depth. The 3D resolution and blur edge width might be useful to characterize the performance of auto‐stereoscopic multi‐view 3D.

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“…For a PC application, the position of user is decided, and there is no need to rotate the screen. In this case, it is proposed that the voltages of LC GRIN lens are optimized in mainly narrow viewing angle region . The LC GRIN lens has a simple structure that consists of the lens electrode and the LC layer, and therefore, it is easy to manufacture .…”

Section: Introductionmentioning

confidence: 99%