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16 records (took 0.021 seconds)

    1.
    发明专利
    未知

    公开(公告)号：ITMI20031079D0

    公开(公告)日：2003-05-29

    申请号：ITMI20031079

    申请日：2003-05-29

    Applicant: ST MICROELECTRONICS SRL

    Inventor： SPAMPINATO GIUSEPPE

    IPC: G06T9/00 ,  H04N19/895

    Abstract: The method involves processing digital image sequence for obtaining a set of de-quantized blocks having digital values corresponding to de-quantized coefficients of a transform in a bi-dimensional spatial frequencies domain. A block with digital values outside a preset range of digital values is selected and discarded. A respective pixel block having replacement information is provided in a decoded-decompressed image. Independent claims are also included for the following: (a) a method of transferring initial digital image from a communication terminal; (b) a multimedia communication apparatus.

    4.
    发明专利
    未知

    公开(公告)号：DE602004026291D1

    公开(公告)日：2010-05-12

    申请号：DE602004026291

    申请日：2004-07-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： SPAMPINATO GIUSEPPE ,  MESSINA GIUSEPPE ,  BRUNA ARCANGELO RANIERI ,  GUARNERA MIRKO

    IPC: H04N9/04 ,  G06T3/40

    Abstract: A fast method of color interpolation of pixels of an image acquired by a color filtered digital sensor uses a very simple cost function that nevertheless produce interpolated images of good quality. The cost function is computationally simpler because it does not require the calculation of powers and square roots. An efficient triangulation algorithm that may be executed in far less time than prior art triangulation processes, while practically ensuring the same performances. The peculiarity of this triangulation algorithm consists in that on average it requires only two iteration steps, while the most accurate prior triangulation algorithm is completed only after four iteration steps. Optionally, the interpolation process may be followed by an anti-aliasing processing that effectively removes color artifacts that may be created during the interpolation process.

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