Abstract: The Ceiling Debris Collection Bin is a receptacle with a wide opening that facilitates the nearly complete collection of acoustic ceiling debris removed by the Popcorn Ceiling Scraper—U.S. Pat. No. 6,101,663. The makers this Scraper recommend use of a plastic trash bag for collection of debris but a trash bag is not efficient enough, being limited to an opening defined by the scraper's flexible band. The new Ceiling Debris Collection Bin is very efficient owing to the flared side design. Debris that flies all over and might escape collection by a trash bag would be captured by this uniquely designed Ceiling Debris Collection Bin with nearly three times the collection area. The collapsible wings of the bin accommodate the flexible metal band of the Popcorn Ceiling Scraper, so that the Scraper can be pushed up to where the ceiling meets the wall.

Abstract: The invention relates to the field of document authentication and more specifically to an apparatus and method for validating an enhanced feature contained in a document under analysis. More specifically, a cross plane comparison is used within a document comparison system to validate the authenticity of a security document. Two images are extracted from two color-planes (e.g. visible light and infrared) of a specified page of a security document and the presence/absence of a pattern or text in each plane is determined. In operation, the security document is exposed to two light sources and grey scale images are extracted. Binary images are then obtained from the grey scale images by filtering each grey scale image and then thresholding each grey scale image. The difference between the two binary images is then calculated to determine if a pattern or text is present in both planes or only in one plane.

Abstract: The invention relates to the field of document authentication and more specifically to an apparatus and method for validating an enhanced feature contained in a document under analysis. More specifically, a cross plane comparison is used within a document comparison system to validate the authenticity of a security document. Two images are extracted from two colour-planes (e.g. visible light and infrared) of a specified page of a security document and the presence/absence of a pattern or text in each plane is determined. In operation, the security document is exposed to two light sources and grey scale images are extracted. Binary images are then obtained from the grey scale images by filtering each grey scale image and then thresholding each grey scale image. The difference between the two binary images is then calculated to determine if a pattern or text is present in both planes or only in one plane.