TY - GEN
T1 - Real-time centre detection of an OLED structure
AU - Pieters, R.S.
AU - Jonker, P.P.
AU - Nijmeijer, H.
PY - 2009
Y1 - 2009
N2 - The research presented in this paper focuses on real-time image processing for visual servoing, i.e. the positioning of a x-y table by using a camera only instead of encoders. A camera image stream plus real-time image processing determines the position in the next iteration of the table controller. With a frame rate of 1000 fps, a maximum processing time of only 1 millisecond is allowed for each image of 80x80 pixels. This visual servoing task is performed on an OLED (Organic Light Emitting Diode) substrate that can be found in displays, with a typical size of 100 by 200 µm. The presented algorithm detects the center of an OLED well with sub-pixel accuracy (1 pixel equals 4 µm, sub-pixel accuracy reliable up to ±1 µm) and a computation time less than 1 millisecond.
AB - The research presented in this paper focuses on real-time image processing for visual servoing, i.e. the positioning of a x-y table by using a camera only instead of encoders. A camera image stream plus real-time image processing determines the position in the next iteration of the table controller. With a frame rate of 1000 fps, a maximum processing time of only 1 millisecond is allowed for each image of 80x80 pixels. This visual servoing task is performed on an OLED (Organic Light Emitting Diode) substrate that can be found in displays, with a typical size of 100 by 200 µm. The presented algorithm detects the center of an OLED well with sub-pixel accuracy (1 pixel equals 4 µm, sub-pixel accuracy reliable up to ±1 µm) and a computation time less than 1 millisecond.
U2 - 10.1007/978-3-642-04697-1
DO - 10.1007/978-3-642-04697-1
M3 - Conference contribution
T3 - Lecture Notes in Computer Science
SP - 400
EP - 409
BT - Proceedings of the Conference on Advanced Concepts for Intelligent Vision Systems (Acivs 2009), 28 September - 2 October 2009, Mercure Chateau Chartrons, Bordeaux, France
CY - France, Bordeaux
ER -