A tile bracket support system that has a tile side support bracket or clip and a tile bottom support bracket or clip attached to the tile without the use of screws or adhesives. A range of space ratios in a library is determined to include the target space ratio and not include a space ratio of 1:1. The sparse stereo processing is performed using the main camera data and the sparse RGB camera data to estimate a height of one or more tracked vehicle features, which in turn is used to improve speed estimate accuracy. The action knob may be retained in the in-use position without continual pressure allowing hands-free use. The lower layer of the first panel comprises a first mating member and the lower layer of the second panel comprises a second mating member. The spacers have difference capacitances, with the spacer having a higher capacitance formed over a source region of the device and the spacer having a lower capacitance formed over a drain region of the device.