US Patent No: 8,064,695
Number of patents in Portfolio can not be more than 2000
Dark scene compensation in a background-foreground module of a video analysis system
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Nov 22, 2011
Issued date -
May 29, 2008
filing date -
12/129,539
serial no -
In Force
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Abstract
Embodiments of the present invention provide a method and a module for identifying a background of a scene depicted in an acquired stream of video frames that may be used by a video-analysis system. For each pixel or block of pixels in an acquired video frame a comparison measure is determined. The comparison measure depends on difference of color values exhibited in the acquired video frame and in a background image respectively by the pixel or block of pixels and a corresponding pixel and block of pixels in the background image. To determine the comparison measure, the resulting difference is considered in relation to a range of possible color values. If the comparison measure is above a dynamically adjusted threshold, the pixel or the block of pixels is classified as a part of the background of the scene.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 2008/0193,010 BEHAVIORAL RECOGNITION SYSTEM | 25 | 2008 | |
| 2009/0087,024 CONTEXT PROCESSOR FOR VIDEO ANALYSIS SYSTEM | 8 | 2008 | |
| 2009/0087,086 IDENTIFYING STALE BACKGROUND PIXELS IN A VIDEO ANALYSIS SYSTEM | 4 | 2008 | |
| 2009/0087,093 DARK SCENE COMPENSATION IN A BACKGROUND-FOREGROUND MODULE OF A VIDEO ANALYSIS SYSTEM | 5 | 2008 | |
| 2009/0087,096 BACKGROUND-FOREGROUND MODULE FOR VIDEO ANALYSIS SYSTEM | 9 | 2008 | |
| 2009/0087,085 TRACKER COMPONENT FOR BEHAVIORAL RECOGNITION SYSTEM | 3 | 2008 | |
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| 7,639,741 Temporal filtering using object motion estimation | 7 | 2003 | |
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| 5,677,733 Exposure control device having a plurality of light detecting areas | 18 | 1994 | |
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| 2008/0266,413 TECHNIQUES FOR ADJUSTING THE EFFECT OF APPLYING KERNALS TO SIGNALS TO ACHIEVE DESIRED EFFECT ON SIGNAL | 8 | 2008 | |
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| 7,236,190 Digital image processing using white balance and gamma correction | 15 | 2002 | |
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| 7,136,097 Camera system for high-speed image processing including selection of at least one frame based on processed results | 9 | 2000 | |
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| 7,535,511 Automatic exposure control method and automatic exposure compensation apparatus | 6 | 2006 | |
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| 2004/0032,906 Foreground segmentation for digital video | 27 | 2002 | |
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| 7,710,466 Method and apparatus for controlling a camera module to compensate for the color spectrum of a white LED | 3 | 2007 | |
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| 7,349,574 System and method for processing non-linear image data from a digital imager | 15 | 2003 | |
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| 4,998,162 Video camera | 28 | 1989 | |
Patent Citation Ranking
Maintenance Fees
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| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 22, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 22, 2023 |
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