P‐143L: Late‐News Poster : New Characterization of 3D Performance for Multi‐view Autostereoscopic Displays

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.

“…Various methods for measurement of 3D were reported . Some of these included the methods of visual inspection for stereoscopic 3D, but not for autostereoscopic 3D.…”

Section: Introductionmentioning

confidence: 99%

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

Lee

Yeo²,

Hong³

2018

“…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

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.

“…3D crosstalk of autostereoscopic multi‐view 3D display was defined similar to that of 3D display using eyeglass. The definition of multi‐view 3D assumes that image of one view is equivalent to the intended image and images of all other views are equivalent to the unintended image . For some of multi‐view 3D display of large view number, 3D crosstalk was reported to be larger than a few hundred percent .…”

Section: Introductionmentioning

confidence: 99%

“…The definition of multi-view 3D assumes that image of one view is equivalent to the intended image and images of all other views are equivalent to the unintended image. [8][9][10][11][12][13] For some of multi-view 3D display of large view number, 3D crosstalk was reported to be larger than a few hundred percent. [11][12][13] Such large value does not accord with the perceived image quality of multi-view 3D display.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11][12][13] For some of multi-view 3D display of large view number, 3D crosstalk was reported to be larger than a few hundred percent. [11][12][13] Such large value does not accord with the perceived image quality of multi-view 3D display. To solve this problematic issue, offset crosstalk and 3D pixel crosstalk were recently defined as 3D crosstalk-related property for multi-view display.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of depth and 3D crosstalk on blur in multi‐view 3D displays

Hong

2017

Current 3D crosstalk equation was defined from the characteristics of 3D display using glasses. This equation is not suitable for multi‐view 3D display with larger view number as it gives the inappropriately large value. In 3D display using eyeglass, double images occur at large depth. But, in multi‐view 3D display with larger view number, blur occurs to larger width for the larger depth. Hence, blur phenomenon of multi‐view 3D display was investigated to understand the unique characteristics of multi‐view 3D display. For this purpose, ray tracing S/W was used to simulate 3D display image seen at the designed viewing distance, to calculate the relative luminance distribution, and to quantify the relation between blur and depth. Calculated results showed that incomplete image separation caused the overlap of multiple view images and the blur. Blur edge width (BEW) was proportional to the horizontal disparity and related to the depth. BEWR = (BEW) / (binocular disparity) was newly defined, and its usefulness for 3D characterization was investigated. BEW and BEWR might be useful as new measuring items to characterize multi‐view 3D display regarding 3D crosstalk.