The system is of the type for use by a person and including a handpiece and an imaging device, the handpiece containing a breath alcohol tester and the imaging device being adapted to capture an image including the handpiece when a breath sample is delivered to the handpiece. The improvement includes a sensor arrangement and a computing functionality. The sensor arrangement is adapted to provide information from which an orientation and position of the handpiece can be calculated. The computing functionality is adapted to: generate a calculated orientation and position of the handpiece; and if a face appears in the image, precisely locate the features thereof. The features of the face are located using the calculated orientation and position of the handpiece.
Breath alcohol ignition interlock system
2018-02-20
Patent
Elektronische Ressource
Englisch
IPC: | G06K Erkennen von Daten , RECOGNITION OF DATA / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL |
Solid-State Breath Alcohol Vehicle Interlock System
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|Accuracy of Breath Alcohol Detector for Alcohol Interlock System
British Library Conference Proceedings | 2008
|Riverland Alcohol Ignition Interlock Trial
NTIS | 1998
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