Range sensing with a Scheimpflug camera and a CMOS sensor/processor chip
Yükleniyor...
Dosyalar
Tarih
2004-02
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE-INST Electrical Electronics Engineers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
An image-based range-sensing technique is presented. The technique is originally considered for highway collision avoidance applications, but its generality makes it suitable for application in robotics, manufacturing, and metrology, as well. It relies on depth from focus but, unlike conventional techniques, it extracts range with a single unmodulated Scheimpflug camera in continuous time. The range extraction algorithm is memoryless and simple enough to be implemented on the same chip with photosensors. The technique deploys a sensor plane that is tilted at a nonorthogonal angle with respect to the optical axis of the lens and the optical axis intersects the sensor plane at the focal point. This optical arrangement creates a focusable object plane in an orientation parallel to the optical axis and, thus, enables range sensing along the same axis. This paper elaborates on the details of focus sensing on the tilted sensor plane, describes the CMOS sensor/processor chip designed and prototyped for this application, and presents experimental results.
Açıklama
Anahtar Kelimeler
Focus, CMOS image sensors, CMOS process, Cameras, Collision avoidance, Manufacturing, Optical sensors, Road transportation, Robot sensing systems, Robot vision systems, Sensor phenomena and characterization, CMOS processor chip, CMOS sensor chip, Scheimpflug camera, Highway collision avoidance applications, Image-based range-sensing, Metrology, Photosensors, Range extraction algorithm, Robotics, Sensor plane, Digital signal processing chips, Laser ranging, Optical sensors, Robot vision, Algorithms, CMOS integrated circuits, Mathematical models, Matrix algebra, Microprocessor chips, Optimization, Problem solving, Range finders, Real time systems, Signal processing, Stereo vision, CMOS sensors, Processor chips, Range sensors, Scheimpflug cameras, Chemical sensors
Kaynak
IEEE Sensors Journal
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
4
Sayı
1
Künye
Cilingiroglu, U., Chen, S., & Cilingiroglu, E. (2004). Range sensing with a scheimpflug camera and a CMOS sensor/processor chip. IEEE Sensors Journal, 4(1), 36-44. doi:10.1109/JSEN.2003.820368
