Enabling Concurrent Dual Views on Common LCD Screens

Can your laptop show you two different views simultaneously?

The answer is yes and here is how. Twisted Nematic (TN) is the most widely used LCD technology today, especially on laptop screens. Some color combinations may become indistinguishable when viewed at a certain angle. Exploiting this, we can hide and show information at different angles without special hardware. Two completely different images can be shown at different viewing angles by spatial multiplexing or by temporal multiplexing. Our method works across various TN-based LCD screens. Similarly, two movies or video games can be played simultaneously for different viewing angles, allowing people to watch different programs or play video games with personalized views.

CoDAC: Compressive Depth Acquisition Camera

CoDAC is a new time-of-flight based range measurement system for acquiring depth maps of piecewise-planar scenes with high spatial resolution using a single, omnidirectional, time-resolved photodetector and no scanning components. In contrast with the 2D laser scanning used in LIDAR systems and low-resolution 2D sensor arrays used in TOF cameras, CoDAC demonstrates that it is possible to build a non-scanning range acquisition system with high spatial resolution using only a standard, commercially-available, low-cost photodetector and spatial light modulator.

Kinect for the mobile phone!

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