The imaging unit 500 captures an image using a lens having an effective image circle smaller than the imaging surface of an image sensor. A vignetting amount calculation unit 2212 of a detection unit 221 individually calculates, for four corners, a region size of a vignetting region generated in the captured image acquired by the imaging unit 500, for example. A determination unit 2214 detects a change in the region size calculated at the time of focus abnormality detection processing with respect to the region size calculated at the reference time, and determines that a focus abnormality is detected when the change in the region size exceeds a threshold at any of the four corners. This enables accurate detection of focus abnormality.
ABNORMALITY DETECTION DEVICE, ABNORMALITY DETECTION METHOD, PROGRAM, AND INFORMATION PROCESSING SYSTEM
ANOMALIEERKENNUNGSVORRICHTUNG, ANOMALIEERKENNUNGSVERFAHREN, PROGRAMM UND INFORMATIONSVERARBEITUNGSSYSTEM
DISPOSITIF DE DÉTECTION D'ANOMALIES, PROCÉDÉ DE DÉTECTION D'ANOMALIES, PROGRAMME, ET SYSTÈME DE TRAITEMENT D'INFORMATIONS
14.09.2022
Patent
Elektronische Ressource
Englisch
IPC: | G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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