Mr. Bu Min Profile

Bu Min

at Anhui Univ

SPIE Involvement:

Author

Publications (3)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 12 December 2018 Paper

Research on 16K video stream coding and system architecture for 3D display

Runqin Rong, Guizhu Wang, Chuan Shen, Sui Wei, Bu Min, Heteng Hu

Proceedings Volume 10845, 108450V (2018) https://doi.org/10.1117/12.2505697

KEYWORDS: Video, Video coding, Video acceleration, Computer programming, LCDs, Video compression, 3D displays, Image resolution, 3D video compression, Video processing

Read Abstract +

3D display requires a high-resolution, high-pixel playing system. This paper studies the video playback with single frame resolution of 16K × 8K . The bandwidth of display exceeds the current video display capability of 8K × 4K resolution. On the one hand, an appropriate system architecture needs to be built on the existing hardware level. 16 liquid crystal displays (LCDs) are used in this paper, with resolution of each LCD is 4K × 2K and size is 15.6 inches. Constituting a video display terminal array of 4 × 4 ,which the resolution is 16K × 8K . And a single-layer architecture with a fully decode is used. Decoding 16 channels of 4K signals on one host with i7-6800K and two video cards with NVS810 (both with 25GBps memory bandwidth) and deliver signals through 16 DP interfaces in parallel. On the other hand, under this architecture, running load of CPU and GPU, bus bandwidth and scheduling of dynamic storage capacity impose higher requirements on the encoding and decoding of video data. Comparative research between MPEG series and H.26X series coding standard has carried out in this paper. An inter-frame-based forward prediction (BFP) method is proposed. Finally, in the Win7 system, using mpeg-2 encoding standard, and decoding by using ffplay that achieves 16K video with 15Fps smooth playback. The effectiveness of the proposed method is verified. The proposed BFP method further reduces the decoding complexity of CPU.

Proceedings Article | 12 December 2018 Paper

liquid crystal phase modulator based on deep sub-grating structure

Hu Heteng, GuiZhu Wang, Sui Wei, Chuan Shen, Rong RunQin, Bu Min

Proceedings Volume 10845, 108450F (2018) https://doi.org/10.1117/12.2505111

Read Abstract +

The challenge of dynamic holographic video display based on spatial light modulator is that it requires a large spatial bandwidth product. A simple method is to reduce the size of a single pixel in conventional LCOS (liquid crystal on silicon , LCOS) device. However, with the pixel size shrinks, it also requires a corresponding reduction in thickness of liquid crystal cell, otherwise the fringe field effect between pixels will affect the modulation of normal pixel. A deep sub-wavelength metal grating with a Fabry-Perot resonance is used instead of the top electrode of LCOS to form a liquid crystal phase modulator in this paper. Different from traditional LCOS, which realizes the phase modulation by using the birefringence of the liquid crystal in liquid crystal cell, the birefringence of the liquid crystal in our device is used to modulate the conditions of the reflective boundary of the deep sub-wavelength metal grating, which in turn controls the amount of phase modulation of reflected light in grating slit. The TechWiz and CST Microwave Studios software are used in this paper. Observing the distribution of liquid crystal directors and electric field distribution. Recording the intensity of visible light reflection and observing whether the device can achieve phase modulation of 0 ~ 2π by changing the pixel pitch and grating structure parameters. The simulation results show that there is no significant change in the liquid crystal directors and electric field distribution in different pixel pitch, the device phase modulation is close to^2π , and it has a high reflectivity.

Proceedings Article | 12 December 2018 Paper

Effects of number of elemental images of lens-array based systems on angular resolution

Bu Min, GuiZhu Wang, Chuan Shen, Sui Wei, QuanBing Zhang, Rong RunQin, Hu Heteng

Proceedings Volume 10845, 108450U (2018) https://doi.org/10.1117/12.2505674

KEYWORDS: Spatial resolution, 3D displays, LCDs, 3D image processing, Imaging systems, Cameras, Image resolution, 3D modeling, 3D acquisition, Eye

Read Abstract +

Lens-array based imaging system is a kind of the direct-view system that is currently a hot topic of research. In fact, the viewing parameters of this system have been one of the focuses of research since its invention. However, most current literature discussions are based on depth of field, spatial resolution, and field of view. Only a few documents or products use angular resolution, spatial resolution, and field of view as criteria. The angle resolution is one of the parameters in the human eye vision module. This article will try to discuss the hardware conditions for realizing the angular resolution in the LCD discrete pixel system and its influence on the 3D perception. The results show that the angular resolution is determined by the number of pixels in each sub-image and is proportional to the number of elemental images and is limited by the LCD pixel pitch.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years