Single-Pixel Technology, alternately known as background suppression (BGS), is ideal for ignoring objects in the background and for consistent detection of objects in the near field, regardless of their color or reflectivity.
Great article! We at XYZ Interactive Tech. have developed a distance-based IR sensor that merges the technique of angle measurement and signal strength of a reflected IR pulse. This can be done in a low-cost package to output distance with customized resolution and accuracy. We have extended this principle to design sensors in 2D and 3D to recognize hand gestures for "smart" switching technology applications.
Smart sensors is a promising area for innovation in 2013. The combination of more powerful processors, networking connectivity and mass customization of sensor designs is opening up lots of possibilities for more intelligent sensor solutions. Add to that wireless technology, especially for factory applications, and we can expect to see an area ready to keep developing new products.