Title :
CCD-based range-finding sensor
Author :
Miyagawa, Ryohei ; Kanade, Takeo
Author_Institution :
Robotics Inst., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
10/1/1997 12:00:00 AM
Abstract :
Integration-time-based, time-domain computation provides an area-efficient way to process image information by directly handling photo-created charge during photo-sensing. We have fabricated and tested a CCD-based range-finding sensor which uses the time-of-flight method for range measurement. The sensor exploits two charge packets for light integration and detects the delay of the received light pulse relative to the transmitted light pulse. It has detected a 10 cm distance difference at the range of 150 cm in the dark background
Keywords :
CCD image sensors; VLSI; distance measurement; time-domain analysis; 150 cm; area-efficient method; charge packets; dark background; integration-time-based computation; light integration; photo-created charge; photo-sensing; range measurement; range-finding sensor; received light pulse; time-domain computation; time-of-flight method; transmitted light pulse; Charge coupled devices; Delay effects; Delay estimation; Image sensors; Motion detection; Phase detection; Pulse measurements; Pulse modulation; Testing; Time domain analysis;
Journal_Title :
Electron Devices, IEEE Transactions on
