Interactive input system and bezel therefor

Abstract

An interactive input system comprises at least one imaging device having a field of view looking into a region of interest. At least one radiation source emits radiation into the region of interest. A pliable bezel at least partially surrounds the region of interest. The pliable bezel has a reflective surface in the field of view of said at least one imaging device.

1 . An interactive input system comprising:
 at least one imaging device having a field of view looking into a region of interest;   at least one radiation source emitting radiation into said region of interest; and   a pliable bezel at least partially surrounding said region of interest, said a bezel having a reflective surface in the field of view of said at least one imaging device.   
     
     
         2 . An interactive input system according to  claim 1  wherein said pliable bezel comprises at least one strap, said pliable bezel bordering multiple sides of said region of interest. 
     
     
         3 . An interactive input system according to  claim 2  further comprising at least one bezel guide adjacent the periphery of said region of interest around which said at least one strap is partially wrapped. 
     
     
         4 . An interactive input system according to  claim 3  further comprising a plurality of bezel guides at spaced locations about the periphery of said region of interest around which said at least one strap is partially wrapped. 
     
     
         5 . An interactive input system according to  claim 4  wherein one or more of said bezel guides comprises retaining structure to retain said bezel. 
     
     
         6 . An interactive input system according to  claim 4  wherein each bezel guide in the field of view of said at least one imaging device is coated with a reflective material. 
     
     
         7 . An interactive input system according to  claim 6  wherein the reflective surface of said bezel and the reflective coating on each said bezel guide is retro-reflective. 
     
     
         8 . An interactive input system according to  claim 4  wherein each bezel guide in the field of view of said at least one imaging device is substantially transparent. 
     
     
         9 . An interactive input system according to  claim 4  wherein each bezel guide is one of a cylindrical element, a curved element and a thin profile element. 
     
     
         10 . An interactive input system according to  claim 4  wherein each bezel guide comprises a plurality of bezel guide elements, the bezel being interleaved between the bezel guide elements. 
     
     
         11 . An interactive input system according to  claim 4  further comprising an adjustment mechanism cooperating with said bezel to adjust the tension thereof. 
     
     
         12 . An interactive input system according to  claim 4  wherein said radiation source comprises a light source. 
     
     
         13 . An interactive input system according to  claim 12  wherein said light source comprises one or more light emitting diodes (LEDs). 
     
     
         14 . An interactive input system according to  claim 5  wherein each LED is an infrared LED. 
     
     
         15 . An interactive input system according to  claim 4  wherein said light source is positioned adjacent said at least one imaging device. 
     
     
         16 . An interactive input system according to  claim 15  wherein said light source comprise one or more LEDs. 
     
     
         17 . An interactive input system according to  claim 16  wherein each LED is an infrared LED. 
     
     
         18 . An interactive input system according to  claim 1  further comprising processing structure communicating with said at least one imaging device and processing image data output thereby. 
     
     
         19 . An interactive input system according to  claim 18  wherein said region of interest is generally rectangular and wherein said bezel extends along multiple sides of said region of interest. 
     
     
         20 . An interactive input system according to  claim 19  wherein said bezel extends along three sides of said region of interest. 
     
     
         21 . An interactive input system according to  claim 20  comprising at least two imaging devices looking into said region of interest from different vantages and having overlapping fields of view. 
     
     
         22 . An interactive input system according to  claim 21  comprising a radiation source proximate each imaging device. 
     
     
         23 . An interactive input system comprising:
 at least one imaging device having a field of view looking into a region of interest; and   a pliable bezel at least partially surrounding said region of interest, said a bezel having a surface in the field of view of said at least one imaging device.   
     
     
         24 . An interactive input system according to  claim 23  wherein said pliable bezel comprises at least one strap, said pliable bezel bordering multiple sides of said region of interest. 
     
     
         25 . An interactive input system according to  claim 24  further comprising at least one bezel guide adjacent the periphery of said region of interest around which said at least one strap is partially wrapped. 
     
     
         26 . An interactive input system according to  claim 25  further comprising a plurality of bezel guides at spaced locations about the periphery of said region of interest around which said at least one strap is partially wrapped. 
     
     
         27 . An interactive input system according to  claim 26  wherein each bezel guide is one of a cylindrical element, a curved element and a thin profile element. 
     
     
         28 . An interactive input system according to  claim 26  wherein each bezel guide comprises a plurality of bezel guide elements, the bezel being interleaved between the bezel guide elements. 
     
     
         29 . An interactive input system according to  claim 26  further comprising an adjustment mechanism cooperating with said bezel to adjust the tension thereof. 
     
     
         30 . An interactive input system according to  claim 23  wherein said pliable bezel is inflatable. 
     
     
         31 . An interactive input system according to  claim 30  wherein said bezel surrounds said region of interest and accommodates said at least one imaging device. 
     
     
         32 . An interactive input system according to  claim 31  comprising a plurality of imaging devices at different locations about the periphery of said region of interest, said bezel accommodating said imaging devices.