Back in October 2011, Fujifilm representative claimed that their upcoming mirrorless interchangeable lens camera (X-Pro 1) will have resolution and low noise that will rival the performance of 35mm full size sensor.
Fuji's secret will be their new Fuji X-Trans sensor and EXR Pro processor. I am not very clear on the details, but the story goes like that:
Instead of the traditional 2 x 2 sensor layout where you have two equally spaced green and blue pixels, the new Fuji X-Trans sensor will have a 6 x 6 design that consists of four 3 x 3 pixels that are mixed (not arranged like in the traditional design). This design should eliminate moiré (the sensor does not have AA filter). From there the processor will form colors which will add extra CPU time, where the new EXR Processor Pro come in play.
We we know more on Monday.
Yes, Fuji designs their own sensors, cameras and lenses and other manufacturers should be afraid of Fujifilm.