1. Blind spot.
http://en.wikipedia.org/wiki/Blind_spot_(vehicle)
2. Traffic collision.
http://en.wikipedia.org/wiki/Traffic_collision
3. A Plus Pillar concept gives eyes to a driver’s blind spot.
http://www.damngeeky.com/2012/10/30/6751/a-plus-pillar-concept-gives-eyes-to-a-drivers-blind-spot.html
4. Tsai, C.M.: Non-motion blur detection for helping blind persons to ``see’’ business cards. ICMLC 2012, 1901–1906 (2012)
5. Tsai, C.M.: Text detection in moving business cards for helping visually impaired persons using a wearable camera, IJWMIP, 12:01 (2014) 1450010-1–1450010-16