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Current Research Topics

Virtual Reality

  • Head Mounted Display (HMD) for Virtual Reality
    • Studies are conducted to provide various virtual reality experience for users wearing HMD. Reduced gravity environments like Lunar/Mars surface and extreme sports like skydiving and parasailing have been implemented in virtual environment.
  • 360 Image Rendering to HMD
    • Studies are conducted to minimize the distortion of 360 camera image taken by drone which will be rendered through the HMD.
  • Virtual Reality Interface
    • Interaction between users and UI in virtual reality is analyzed. Through the analysis, studies to increase the efficiency and the sense of presence are conducted.

Augmented Reality

  • 360 Image-based Reconstruction
    • Extract the accurate 3D point cloud by integrally processing the omnidirectional image and perform 3D reconstruction of the surrounding environment.
  • Simultaneous Localization and Mapping
    • 360 camera images captured by the drone are analyzed to extract camera pose and spatial information. It is used in drone path-finding and augmented reality.
  • Landmark-based Outdoor Localization
    • A research is performed to search the landmark using the GPS information of the drone and the features extracted from the 360 camera images. Based on this, the exact position of th drones and surrounding buildings are tracked. It is used to find the path of the drones that avoids collision.

Deep Learning + 3D Applications

  • Deep Learning-based Character Controller
    • We study character controller based on deep learning for the natural movement. It learns controller considering various environments through iterative character simulation.
  • Deep Learning-based Camera Tracking
    • We study the camera tracking method using deep learning. The captured video is analyzed frame by frame, and artificial neural network calculates the real-time motion of the camera.

Physics-based Simulation

  • Fluids Simulation
    • Based on the laws of physics, we research on mathematical calculation and expression of fluid motion.
  • Magnetic Field Simulation
    • Based on the Maxwell's equation, we study on mathematical calculation of magnetic properties to represent the realistic motion of the magnetic substance.

Previous Research Topics

Real-time Terrain Rendering

  • Studies for a novel terrain-rendering algorithm based on GPU tessellation. Level-of-detail (LOD) control, procedural terrain generation, and out-of-core terrain rendering techniques are included.

  • We have studied followings:
    • Terrain rendering with pixel sized screen-space error metric
    • Terrain rendering with adaptive GPU tessellation scheme
    • Procedural terrain generation of the lunar surface from the coarse satellite digital elevation map

Character Animation

  • Character animation is a branch of the computer animation field that targets modeling character. We study algorithms for more extreme realistic animation by systematically observing and modeling human skeleton and skin movements. We also study dimensional reduction and torque-based physics simulation for fast and accurate character control.

  • Character animation studies conducted by our lab is as follows:
    • Dynamic skinning for popping dancing
    • Error correction of joint in skinning animation
    • Interactive character controller for e-training system

Image Sequence Compositing

  • Image sequence compositing is a technique of image processing that processes the given two images to create an intermediate conversion. Based on basic techniques such as geometric based image transformation and image feature emphasis, we study various application techniques such as non-photorealistic image transformation, image editing history extraction and transformation through image analysis.

  • A typical image sequence compositing study conducted by Media Lab is as follows:
    • Create natural image morphing process
    • Simulation of image generation process using non-photorealistic rendering

Virtual Science Experiments

  • Spatial and temporal constraints of science experiments in real world can be overcome with virtual science experiment contents. We develop simulation and rendering engine and authoring tool specialized for science experiments. By using the engine and tool, contents can be produced and the effectiveness of virtual science experiments can be demonstrated.

  • Media Lab's representative research and contents of virtual science experiment are as follows:
    • Simulation of magnet experiment
    • Simulation of flame experiment
    • Digital textbook authoring tool

Lighting & Shading

  • In computer graphics, lights and shadows are essential elements for representing realistic 3D scenes. In particular, global ilumination maximizes reality by modeling the lights in the real world. Generally, a large amount of computation is required for calculating illumination and shadows, but studies for real-time global illumination are being continued.

  • Typical lighting and shadow studies performed at Media Lab are as follows:
    • Real-time generation of soft shadows
    • Real-time global illumination