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US 7,253,427 B2Granted
Automatic object plane detection system and method
AssigneeHewlett-Packard Development Company, L.P.
InventorsKurt E. Spears, Rodney C. Harris
Life of this patent
Estimating the term…
Abstract
An object plane detection system comprises a light source adapted to illuminate a media object to generate an image area on a photosensitive sensor. The system also comprises a detection module adapted to determine a location of an object plane corresponding to the media object based on a size of the image area.
Claims42
An object plane detection method, comprising:
- illuminating an image area on a photosensitive sensor via light reflected from a media object;
- determining a location of an object plane corresponding to the media object based on a size of the image area;
- and
- modifying a frequency of illuminating the media object for generating the image area based on a rate of chance of the location of the object plane.
1 more element
An object plane detection system, comprising:
- a light source adapted to illuminate a media object to generate an image area on a photosensitive sensor;
- a detection module adapted to determine a location of an object plane corresponding to the media object based on a size of the image area, the detection module adapted to modify a frequency of illuminating the media object to generate the image area based on a rate of change to the location of the object plane.
An object plane detection system, comprising:
- means for illuminating an image area on a photosensitive sensor via light reflected from a media object;
- means for determining a location of an object plane corresponding to the media object based on a size of the image area;
- and
- means for modifying a frequency of illuminating the media object to generate the image area in response to a change in the location of the object plane exceeding a predetermined threshold.
1 more element
An object plane detection system, comprising:
- a light source adapted to intermittently illuminate a media object during a scanning operation to generate an image area on a photosensitive sensor;
- and
- a detection module adapted to determine a location of an object plane corresponding to the media object based on the image area exposed on the photosensitive sensor, the detection module adapted to modify a frequency of illuminating the media object to generate the image area based on a rate of change to the location of the object plane.
An object plane detection system, comprising:
- a light source adapted to illuminate a portion of a media object to generate an image area on a photosensitive sensor;
- and
- a detection module adapted to determine a location of an object plane corresponding to the media object based on the image area exposed on the photosensitive sensor, the detection module adapted to modify a frequency of illuminating the media object to generate the image area based on a rate of change to the location of the object plane.
An object plane detection system, comprising:
- a first light source adapted to illuminate a media object to obtain a scanned image of the media object;
- and
- a second light source adapted to intermittently illuminate the media object during a scanning operation to enable detection of a location of an object plane corresponding to the media object, a frequency of intermittent illumination of the second light source dynamically controlled based on a change to the location of the object plane.
Dependencies are inferred from the claim text.