Apparatus and method for edge handling in image processing
September 22, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesImage scaling apparatus Image resolution conversion using a plurality of image registrations Pixel image edge-smoothing method and system Area mapping employing reference clusters for high quality noninteger resolution conversion with enhancement Method and apparatus for performing post-process antialiasing of polygon edges Method and apparatuses for removing blocking effect in a motion picture decoder Image compression based on tiled wavelet-like transform using edge and non-edge filters Graphics system configured to interpolate pixel values Patent #: 6664955 InventorsAssigneeApplicationNo. 10947852 filed on 09/22/2004US Classes:382/268Minimize discontinuities at boundaries of image blocks (i.e., reducing blocking effects or effects of wrap-around)ExaminersPrimary: Patel, KanjiAttorney, Agent or FirmForeign Patent References
International ClassesG06K 9/40G09G 5/36 AbstractA method and apparatus for hardware-base edge handling in video post-processing. In one embodiment, the method includes the identification of at least one unstored input pixel required to compute an output pixel during output pixel computation. Once identified, a pixel value is generated for the at least one unstored input pixel according to a detected edge handling mode. The generation of the pixel value for the unstored input pixel is performed, in one embodiment, if a position of the unstored input pixel is outside a pixel frame boundary. For example, in one embodiment, for output pixel computation of a scaling operation, the frame boundaries include a left (top) edge and a right (bottom) edge for which input pixels required to compute output pixels at or near the frame boundaries do not exist. Other embodiments are described and claimed.Field of SearchEdge or contour enhancementMinimize discontinuities at boundaries of image blocks (i.e., reducing blocking effects or effects of wrap-around) Minimize jaggedness in edges (e.g., anti-aliasing) To position or translate an image To change the scale or size of an image Raising or lowering the image resolution (e.g., subpixel accuracy) Interpolation Image storage or retrieval Page or frame memory Size, resolution, or scale control Edge adaptive Scaling COMPUTER GRAPHICS DISPLAY MEMORY SYSTEM Register | |
