1
Alexander R Roustaei, Roland L Lawrence, Ali Lebaschi, Long Xiang Bian, Donald Fisher: Optical scanner for reading and decoding one- and-two-dimensional symbologies at variable depths of field including memory efficient high speed image processing means and high accuracy image analysis means. Symbol Technologies, Brown Martin Haller & McClain, May 26, 1998: US05756981 (565 worldwide citation)

An optical device for reading one- and two-dimensional symbologies at variable depths of field. The device has a light source for projecting emitted light toward the symbol image to be reflected back to an optical assembly, or zoom lens. The zoom gives multiple field of view capability to a CCD dete ...


2
John Dwinell, Long Xiang Bian: Parcel dimensioning measurement system and method. Sick, Iandiorio Teska & Coleman, March 13, 2012: US08132728 (55 worldwide citation)

A parcel dimension measurement system includes image sensors oriented to image a parcel, an imaging subsystem configured to stitch together outputs of the image sensors to produce at least one two-dimensional image comprised of a plurality of pixels, and a general dimension subsystem including gener ...


3
Long Xiang Bian, Walter P Sweeney Jr: Barcode detection system. SICK Auto Ident, Iandiorio & Teska, May 23, 2006: US07050631 (14 worldwide citation)

A barcode detection device is disclosed which captures an image; examines the image in a plurality of grids; obtains a profile of the image along the sides of the grids; determines the number of transitions in the profile of each side; compares the number of transitions in each adjacent pair of side ...


4
John Dwinell, Long Xiang Bian: Image quality analysis with test pattern. Sick, Iandiorio Teska & Coleman, March 20, 2012: US08139117 (12 worldwide citation)

A system for the automated analysis of image quality obtained by a camera in a camera tunnel system includes a test pattern on an item for placement in the camera tunnel system and an imaging subsystem configured to capture an image of the item using the camera tunnel system, wherein the image inclu ...


5
Long Xiang Bian, Walter P Sweeney Jr: Method and system for verifying transitions between contrasting elements. Sick Auto Ident, Iandiorio & Teska, January 25, 2005: US06845914 (3 worldwide citation)

A method and system for verifying readings of contrasting elements such as bar code elements includes generating a profile of the contrasting elements; identifying a first zone of values representing a first contrasting element, a second zone of values representing a second contrasting element, and ...


6
Long Xiang Bian, Walter P Sweeney Jr: Method and system for enhancing measurement. SICK Auto Ident, Iandiorio & Teska, May 1, 2007: US07212682 (1 worldwide citation)

A method and system for enhancing measurement of a bar code or other object includes storing a pixel image containing a bar code; determining bar code orientation relative to the stored pixel image; determining a scan track through the pixel image in a succession of pixel to pixel scan paths; determ ...


7
Long Xiang Bian, Walter P Sweeney: Barcode detection system. Iandiorio & Teska, May 6, 2004: US20040086182-A1

A barcode detection device is disclosed which captures an image; examines the image in a plurality of grids; obtains a profile of the image along the sides of the grids; determines the number of transitions in the profile of each side; compares the number of transitions in each adjacent pair of side ...


8
Long Xiang Bian, Walter P Sweeney: Method and system for verifying transitions between contrasting elements. Iandiorio & Teska, September 9, 2004: US20040173683-A1

A method and system for verifying readings of contrasting elements such as bar code elements includes generating a profile of the contrasting elements; identifying a first zone of values representing a first contrasting element, a second zone of values representing a second contrasting element, and ...


9
Long Xiang Bian, Walter P Sweeney: Method and system for enhancing measurement. Iandiorio & Teska, September 9, 2004: US20040175052-A1

A method and system for enhancing measurement of a bar code or other object includes storing a pixel image containing a bar code; determining bar code orientation relative to the stored pixel image; determining a scan track through the pixel image in a succession of pixel to pixel scan paths; determ ...


10
John Dwinell, Long Xiang Bian: Parcel dimensioning measurement system and method. Iandiorio & Teska, October 9, 2008: US20080245873-A1

A parcel dimension measurement system includes image sensors oriented to image a parcel, an imaging subsystem configured to stitch together outputs of the image sensors to produce at least one two-dimensional image comprised of a plurality of pixels, and a general dimension subsystem including gener ...