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Determining a pixel classification threshold for vehicle occupancy detection

US9202118B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9202118-B2
Application numberUS-201113324308-A
CountryUS
Kind codeB2
Filing dateDec 13, 2011
Priority dateDec 13, 2011
Publication dateDec 1, 2015
Grant dateDec 1, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

What is disclosed is a system and method for determining a pixel classification threshold for vehicle occupancy determination. An IR image of a moving vehicle is captured using a multi-band IR imaging system. A driver's face is detected using a face recognition algorithm. Multi-spectral information extracted from pixels identified as human tissue of the driver's face is used to determine a pixel classification threshold. This threshold is then used to facilitate a classification of pixels of a remainder of the IR image. Once pixels in the remainder of the image have been classified, a determination can be made whether the vehicle contains additional human occupants other than the driver. An authority is alerted in the instance where the vehicle is found to be traveling in a HOV/HOT lane requiring two or more human occupants and a determination has been made that the vehicle contains an insufficient number of human occupants.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for determining a threshold for pixel classification in a vehicle occupancy detection system, the method comprising: receiving an IR image of a moving vehicle intended to be analyzed for passenger occupancy in the vehicle, said image having been captured using a multi-band IR imaging system comprising an IR detector and an IR Illuminator, said imaging system having collected intensity values for each pixel in said image; detecting pixels of huma…

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Frequently asked questions

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What does patent US9202118B2 cover?
What is disclosed is a system and method for determining a pixel classification threshold for vehicle occupancy determination. An IR image of a moving vehicle is captured using a multi-band IR imaging system. A driver's face is detected using a face recognition algorithm. Multi-spectral information extracted from pixels identified as human tissue of the driver's face is used to determine a pixe…
Who is the assignee on this patent?
Wang Yao Rong, Xu Beilei, Paul Peter, and 1 more
What technology area does this patent fall under?
Primary CPC classification G06K9/00838. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Dec 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).