US2016048991A1
|
|
Method for preventing selected pixels in a background image from showing through corresponding pixels in a transparency layer
|
US2015071531A1
|
|
Conversion of an image to a transparency retaining readability and clarity of detail while automatically maintaining color information of broad areas
|
US2008231752A1
|
|
Method for generating a clear frame from an image frame containing a subject disposed before a backing of nonuniform illumination
|
GB0723223D0
|
|
Positioning a subject with respect to a background scene in a digital camera
|
US2005270492A1
|
|
Background image control by presenter position
|
US6860604B1
|
|
Method and apparatus for inhibiting the projection of a shadow of a presenter onto a projection screen
|
US6796656B1
|
|
Generating a matte signal from a retro reflective component of a front projection screen
|
US6789903B2
|
|
Generating an inhibit signal by pattern displacement
|
US6616281B1
|
|
Visible-invisible background prompter
|
CA2438739A1
|
|
Interactive teleconferencing display system
|
US6667774B2
|
|
Method and apparatus for the automatic generation of subject to background transition area boundary lines and subject shadow retention
|
US6361173B1
|
|
Method and apparatus for inhibiting projection of selected areas of a projected image
|