Title:
METHOD AND DEVICE FOR DETECTING LIGHT SOURCES
Document Type and Number:
WIPO Patent Application WO/2012/019700
Kind Code:
A3
Abstract:
The invention relates to a method for detecting light sources (7), in which a series of individual images is detected by means of a camera (2) and gray values of pixels of the individual images are measured by means of a light-sensitive sensor (5) of the camera (2), wherein furthermore in an evaluating unit (6) at least some of the pixels of each individual image are combined into contiguous image areas of uniform gray values based on the gray values of said pixels and the image areas are examined for predetermined features, wherein a given image area is classified as a light source if said image area exhibits said features, wherein the sensor (5) has at least one reset value, which is associated with a pixel as the gray value if a brightness jump makes it necessary to reset the sensor for said pixel, wherein the examination for the predetermined features also comprises a check of the image areas to determine if the pixes of said image areas have gray values in a defined vicinity of the reset value of the sensor, and wherein the given image area is classified as a pulsing light source or as part of a pulsing light source if said check has a positive result.
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Inventors:
SIECKE JONA (DE)
HOFFMANN INGO (DE)
DEBSKI ANDREAS (DE)
STEFANOVIC MARKO (DE)
HOFFMANN INGO (DE)
DEBSKI ANDREAS (DE)
STEFANOVIC MARKO (DE)
Application Number:
PCT/EP2011/003711
Publication Date:
January 31, 2013
Filing Date:
July 18, 2011
Export Citation:
Assignee:
HELLA KGAA HUECK & CO (DE)
SIECKE JONA (DE)
HOFFMANN INGO (DE)
DEBSKI ANDREAS (DE)
STEFANOVIC MARKO (DE)
SIECKE JONA (DE)
HOFFMANN INGO (DE)
DEBSKI ANDREAS (DE)
STEFANOVIC MARKO (DE)
International Classes:
G06V10/12; H04N5/355
Other References:
ORLY YADID-PECHT: "4. CMOS Imagers: from Phototransduction to Image Processing", 1 January 2004, KLUWER, article "Active Pixel Sensor Design : From Pixels to Systems", pages: 99 - 139, XP002686037
JUN OHTA: "Smart CMOS Image Sensors and Applications", 1 January 2008, CRC, article "4.4 Wide Dynamic Range", pages: 100 - 108, XP002686038
M. MAURER ET C. STILLER: "Fahrerassistenzsysteme mit maschineller Wahrnehmung", 1 January 2005, SPRINGER, pages: 8-11, 18 - 20, XP002686039
HERMANN WINNER ET AL: "Handbuch Fahrerassistenzsysteme", 1 January 2009, VIEWEG, article "30.4 Nachtsichtsysteme", pages: 465 - 468, XP002686040
A. BELBACHIR: "Smart Cameras", 1 January 2010, SPRINGER, ISBN: 978-1-4419-0953-4, article "Chapter 18, Camera-Based Automotive Systems", pages: 319 - 338, XP008157217
JUN OHTA: "Smart CMOS Image Sensors and Applications", 1 January 2008, CRC, article "4.5 Demodulation", pages: 108 - 115, XP002686042
HERMANN WINNER ET AL: "Handbuch Fahrerassistenzsysteme", 1 January 2009, VIEWEG, article "3-D Imaging", pages: 187 - 197, XP002686043
C.G. SODINI ET S. J DECKER: "A 256 2 256 CMOS brightness adaptive imaging array with column-parallel digital output", PROC. OFTHE 1998 IEEE INTERNATIONAL CONFERENCE ON INTELLIGENT VEHICLES, vol. 2, 1 January 1998 (1998-01-01), Stuttgart, pages 347 - 352, XP002686044
BUNDESMINISTERIUM DER JUSTIZ: "Handbuch der Rechsförmlichkeit, dritte Auflage", 1 January 2008 (2008-01-01) - 1 January 2008 (2008-01-01), XP002686041, Retrieved from the Internet [retrieved on 20121025]
RONAN O'MALLEY ET AL: "Rear-Lamp Vehicle Detection and Tracking in Low-Exposure Color Video for Night Conditions", IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, IEEE, PISCATAWAY, NJ, USA, vol. 11, no. 2, 1 June 2010 (2010-06-01), pages 453 - 462, XP011347258, ISSN: 1524-9050, DOI: 10.1109/TITS.2010.2045375
JUN OHTA: "Smart CMOS Image Sensors and Applications", 1 January 2008, CRC, article "4.4 Wide Dynamic Range", pages: 100 - 108, XP002686038
M. MAURER ET C. STILLER: "Fahrerassistenzsysteme mit maschineller Wahrnehmung", 1 January 2005, SPRINGER, pages: 8-11, 18 - 20, XP002686039
HERMANN WINNER ET AL: "Handbuch Fahrerassistenzsysteme", 1 January 2009, VIEWEG, article "30.4 Nachtsichtsysteme", pages: 465 - 468, XP002686040
A. BELBACHIR: "Smart Cameras", 1 January 2010, SPRINGER, ISBN: 978-1-4419-0953-4, article "Chapter 18, Camera-Based Automotive Systems", pages: 319 - 338, XP008157217
JUN OHTA: "Smart CMOS Image Sensors and Applications", 1 January 2008, CRC, article "4.5 Demodulation", pages: 108 - 115, XP002686042
HERMANN WINNER ET AL: "Handbuch Fahrerassistenzsysteme", 1 January 2009, VIEWEG, article "3-D Imaging", pages: 187 - 197, XP002686043
C.G. SODINI ET S. J DECKER: "A 256 2 256 CMOS brightness adaptive imaging array with column-parallel digital output", PROC. OFTHE 1998 IEEE INTERNATIONAL CONFERENCE ON INTELLIGENT VEHICLES, vol. 2, 1 January 1998 (1998-01-01), Stuttgart, pages 347 - 352, XP002686044
BUNDESMINISTERIUM DER JUSTIZ: "Handbuch der Rechsförmlichkeit, dritte Auflage", 1 January 2008 (2008-01-01) - 1 January 2008 (2008-01-01), XP002686041, Retrieved from the Internet
RONAN O'MALLEY ET AL: "Rear-Lamp Vehicle Detection and Tracking in Low-Exposure Color Video for Night Conditions", IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, IEEE, PISCATAWAY, NJ, USA, vol. 11, no. 2, 1 June 2010 (2010-06-01), pages 453 - 462, XP011347258, ISSN: 1524-9050, DOI: 10.1109/TITS.2010.2045375
Attorney, Agent or Firm:
PFENNING, MEINIG & PARTNER GBR (Berlin, DE)
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