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Dr Ian Sexton

Job: Principal Lecturer

Faculty: Technology

School/department: School of Computer Science and Informatics

Research group(s): Imaging & Displays Research Group (IDRG)

Address: De Montfort University, The Gateway, Leicester, LE1 9BH

T: +44 (0)116 257 7498

E: sexton@dmu.ac.uk

W: www.tech.dmu.ac.uk/~mutedusr/index.html

 

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Publications and outputs 

  • Emerging autostereoscopic displays
    Emerging autostereoscopic displays Surman, P.; Sexton, Ian
  • Projection-based head-tracking 3-D displays.
    Projection-based head-tracking 3-D displays. Singh Brar, R.; Surman, P.; Sexton, Ian
  • Helium3D: A laser-based 3D display with '3D+' capability.
    Helium3D: A laser-based 3D display with '3D+' capability. Brar, R. S.; Surman, P.; Sexton, Ian; Hopf, K.
  • Multi-user glasses free 3D display using an optical array.
    Multi-user glasses free 3D display using an optical array. Brar, R. S.; Surman, P.; Sexton, Ian; Hopf, K.
  • HELIUM3D: A laser‐scanning head‐tracked autostereoscopic display
    HELIUM3D: A laser‐scanning head‐tracked autostereoscopic display Singh Brar, Rajwinder; Surman, P.; Sexton, Ian; Hopf, Klaus A multi-user aurostereoscopic display based on laser scanning is described in this paper. It does not require the wearing of special glasses; it can provide 3D to several viewers who have a large degree of freedom of movement; and it required the display of only a minimum amount of information. The display operates by providing regions in the viewing field, referred to as “exit pupils”, which follow the positions of the viewers’ eyes under the control of multi-user head tracker. The display incorporates an RGB laser illumination source that illuminates a light engine. The light directions are controlled by a spatial light modulator, and a front screen assembly incorporates a novel Gabor superlens. Its operating principle is explained in this paper, as is the construction of three iterations of the display. Finally, a method of developing the display into one that is suitable for television applications is described.
  • MUTED: Multi-user 3-D display.
    MUTED: Multi-user 3-D display. Brar, R. S.; Surman, P.; Sexton, Ian; Hopf, K.
  • Muted and HELIUM3D autostereoscopic displays.
    Muted and HELIUM3D autostereoscopic displays. Surman, P.; Brar, R. S.; Sexton, Ian; Hopf, K.
  • Laser-based head-tracked 3D display research.
    Laser-based head-tracked 3D display research. Brar, R. S.; Surman, P.; Sexton, Ian; Bates, R.; Lee, W. K.; Hopf, K.; Neumann, F.; Day, S. E.; Willman, E.
  • A Time-multiplexed 3d display using steered exit pupils
    A Time-multiplexed 3d display using steered exit pupils Singh Brar, Rajwinder; Surman, P.; Sexton, Ian; Hopf, Klaus This paper presents the multi-user autostereoscopic 3D display system constructed and operated by the authors using the time-multiplexing approach. This prototype has three main advantages over the previous versions developed by the authors: its hardware was simplified as only one optical array is used to create viewing regions in space, a lenticular multiplexing screen is not necessary as images can be produced sequentially on a fast 120Hz LCD with full resolution, and the holographic projector was replaced with a high-frame-rate digital micromirror device (DMD) projector. The whole system in this prototype consists of four major parts: a 120Hz high-frame-rate DMD projector, a 49-element optical array, a 120Hz screen assembly, and a multi-user head tracker. The display images for the left/right eyes are produced alternatively on a 120Hz direct-view LCD and are synchronized with the output of the projector, which acts as a backlight of the LCD. The novel steering optics controlled by the multiuser head tracker system directs the projector output to regions referred to as exit pupils, which are located in the viewers’ eyes. The display can be developed in the “hang-on-the-wall” form.
  • Head tracked 3D displays
    Head tracked 3D displays Sexton, Ian; Bates, R.; Hopf, K.; Lee, W. K. This paper describes the early stages of the EU-funded MUTED (IST-511568) 3D display work. The MUTED project, led by DMU, comprises seven partners from throughout Europe and has attracted 2.9M Euros of funding. It is a spin-off from the 3D TV Network of Excellence where the Centre is an active member. In MUTED a multi-user head tracked 3D display is being developed that will be used in the first instance for medical applications. Partners include Sharp Laboratories of Europe, Light Blue Optics, Heinrich Hertz Institute (part of the Fraunhofer group) and the Technical University of Eindhoven.

Click here to view a full listing of Ian Sexton's publications and outputs.

Research interests/expertise

3D Display Systems

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