The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2004
Filed:
Aug. 14, 1997
John L. Furlani, Palo Alto, CA (US);
Alexandra R. Ohlson, Palo Alto, CA (US);
Richard T. Inman, Raleigh, NC (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
Apparatus, methods, systems and computer program products are disclosed that optimize the application of deferred image operations on a tiled source image. The invention dynamically creates a data structure (such as a directed acyclic graph (DAG)) representing the operations performed on various instances of one or more images to create a final image. The invention analyzes the data structure to determine which source image tiles are needed when the actual image data comprising the final image is required. Each of these tiles are then separately processed by all of the deferred operations to create the final image data. This approach reduces the number of times a tile is read into memory for processing and improves the performance of deferred image operations on a tiled source image.