3D image quality of 200-inch glasses-free 3D display system

2012 ◽  
Author(s):  
M. Kawakita ◽  
S. Iwasawa ◽  
M. Sakai ◽  
Y. Haino ◽  
M. Sato ◽  
...  
Keyword(s):  
Image Quality ◽  
3D Image ◽  
Display System ◽  
3D Display

Evoked Potential Correlates of Display Image Quality

1978 ◽  
Vol 20 (5) ◽  
pp. 589-596 ◽  
Author(s):  
Frank E. Gomer ◽  
Kenneth G. Bish
Keyword(s):  
Image Quality ◽  
Human Brain ◽  
Evoked Potential ◽  
Sensory Stimulation ◽  
Horizontal Resolution ◽  
Future Research ◽  
Display System ◽  
System Parameters ◽  
Gray Shade

The electrical activity generated in the human brain following sensory stimulation can be recorded as voltage differences between electrodes attached to the scalp. These voltage differences are referred to as evoked potentials, and they offer a unique, yet objective, means of assessing visual function. As such, they may link subjective judgments concerning the apparent quality of displayed information with more quantitative measures of perception that are obtained from psychophysical investigations. This report describes the changes in evoked potential amplitude which are exhibited in response to variations in two display system parameters, horizontal resolution and gray shade level. Suggestions are made with respect to future research of this nature.

scholarly journals Partially Overlapping Printing with Digital Filter to Improve Quality of Volume Hologram Printer – Numerical Simulation –

2020 ◽  
Vol 10 (11) ◽  
pp. 3963
Author(s):  
Hangbo Hua ◽  
Takeshi Yamaguchi ◽  
Hiroshi Yoshikawa
Keyword(s):  
Numerical Simulation ◽  
Image Quality ◽  
Spatial Filter ◽  
Improve Quality ◽  
3D Display ◽  
Improve Image Quality ◽  
Volume Hologram ◽  
Final Volume ◽  
Printing Speed

The volume hologram printer is useful for 3D display, because it is selective to the wavelength and be able to reconstruct with the natural illumination. There are many studies of a volume hologram printer been studied to output a volume hologram from a computer-generated hologram. The final volume hologram consists of tiled small holograms and the tiling manner often causes spilt lines which will have impact on image quality. With an intent to get rid of the split lines and improve the quality, fully overlapping printing was proposed recently. Each elemental hologram is overlapped both in vertical and horizontal directions by 50%. Then, the hologram is printed four times in each area and it makes the printing speed four times slower. For this case, partially overlapping printing is proposed in this paper to improve image quality with small effect in printing speed. For partial overlapping, a digital spatial filter is projected and added to every elemental hologram. Using the digital spatial filter, different partially overlapped holograms are calculated and reconstructed to compare to the non-overlapped ones. The simulation result shows that the overlapped one (10% in both vertical and horizontal) has much weaker gaps and black lines.

1-Way Directional Subpixel Rendering Method for Glasses-free 3D Display

2021 ◽  
Author(s):  
Seok Lee
Keyword(s):  
Parallel Processing ◽  
Image Quality ◽  
Eye Tracking ◽  
Computational Efficiency ◽  
3D Image ◽  
3D Display ◽  
3D Rendering ◽  
Left And Right ◽  
High Computational Efficiency ◽  
Average Position

In this paper, we present an efficient 3D rendering method capable of parallel processing for a glasses-free 3D display based on eye-tracking. The proposed 1WDSR (1-way directional subpixel rendering) method allocates subpixel values according to the average position of the viewer’s left and right eyes, and has high computational efficiency without deteriorating 3D image quality. Experimental results have shown that 3D rendering time is reduced to less than 50% compared to the directional subpixel rendering (DSR) method previously proposed by the author while maintaining 3D rendering accuracy.

Occlusion-robust sensing method by using the light-field of a 3D display system toward interaction with a 3D image

2019 ◽  
Vol 58 (5) ◽  
pp. A209 ◽  
Author(s):  
Masahiko Yasui ◽  
Yoshihiro Watanabe ◽  
Masatoshi Ishikawa
Keyword(s):  
Light Field ◽  
3D Image ◽  
Display System ◽  
3D Display ◽  
Robust Sensing

Improvement of Image Quality of 3D Display by Using Optimized Binary Phase Modulation and Intensity Accumulation

2016 ◽  
Vol 12 (5) ◽  
pp. 472-477 ◽  
Author(s):  
Kazunobu Masuda ◽  
Yusuke Saita ◽  
Ryusuke Toritani ◽  
Peng Xia ◽  
Kouichi Nitta ◽  
...  
Keyword(s):  
Image Quality ◽  
Phase Modulation ◽  
3D Display ◽  
Binary Phase

3D crosstalk compensation to enhance 3D image quality of plasma display panel

2011 ◽  
Vol 57 (4) ◽  
pp. 1471-1477 ◽  
Author(s):  
Taeho Kim ◽  
Joong Ra ◽  
Jun Lee ◽  
Seong Moon ◽  
Kwang-yeol Choi
Keyword(s):  
Image Quality ◽  
3D Image ◽  
Plasma Display Panel ◽  
3D Crosstalk ◽  
Plasma Display

Improving 3D image quality of x-ray C-arm imaging systems by using properly designed pose determination systems for calibrating the projection geometry

2003 ◽  
Author(s):  
Norbert K. Strobel ◽  
Benno Heigl ◽  
Thomas M. Brunner ◽  
Oliver Schuetz ◽  
Matthias M. Mitschke ◽  
...  
Keyword(s):  
Image Quality ◽  
Imaging Systems ◽  
3D Image ◽  
X Ray ◽  
Pose Determination ◽  
Projection Geometry

Observability of Very Thick Specimen by Using Transmission Scanning Electron Microscope

1971 ◽  
Vol 29 ◽  
pp. 26-27
Author(s):  
K. Shibatomi ◽  
T. Yamanoto ◽  
H. Koike
Keyword(s):  
Electron Microscope ◽  
Image Quality ◽  
Scanning Electron Microscope ◽  
Chromatic Aberration ◽  
Image Contrast ◽  
Objective Lens ◽  
Thick Specimen ◽  
Transmission Electron ◽  
Scanning Electron

In the observation of a thick specimen by means of a transmission electron microscope, the intensity of electrons passing through the objective lens aperture is greatly reduced. So that the image is almost invisible. In addition to this fact, it have been reported that a chromatic aberration causes the deterioration of the image contrast rather than that of the resolution. The scanning electron microscope is, however, capable of electrically amplifying the signal of the decreasing intensity, and also free from a chromatic aberration so that the deterioration of the image contrast due to the aberration can be prevented. The electrical improvement of the image quality can be carried out by using the fascionating features of the SEM, that is, the amplification of a weak in-put signal forming the image and the descriminating action of the heigh level signal of the background. This paper reports some of the experimental results about the thickness dependence of the observability and quality of the image in the case of the transmission SEM.

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