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    7.
    发明专利
    未知

    公开(公告)号：DE60315407D1

    公开(公告)日：2007-09-20

    申请号：DE60315407

    申请日：2003-02-06

    Applicant: ST MICROELECTRONICS SRL

    Inventor： GARDELLA PIERLUIGI MICHELE ,  BARONE MASSIMILIANO ,  ALFONSO DANIELE ,  PAU DANILO PIETRO ,  LAVIGNA DANIELE

    IPC: G06T9/00

    Abstract: A method for texture compressing images having a plurality of color components (R, G, B), includes the step of decomposing the images in sub-blocks each including only one color component. At least one first predictor is defined for each said sub-block and a respective set of prediction differences is computed for each sub-block. Then the prediction differences for each sub block are sorted, and a look-up prediction differences palette is set up by defining therefrom a look-up prediction error palette. A code is associated with each column of the error palette.

    9.
    发明专利
    未知

    公开(公告)号：DE60215318D1

    公开(公告)日：2006-11-23

    申请号：DE60215318

    申请日：2002-06-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： ALFONSO DANIELE ,  ROVATI FABRIZIO

    IPC: H04N7/26

    Abstract: A system for generating motion vectors (MV) in the framework of a motion estimator is configured for co-operating with an engine for calculating estimation error for generating motion vectors (MV), according to estimation errors and/or motion vectors previously generated. The system comprises a program memory (40), which is able to contain program data for a motion-estimation algorithm to be executed, as well as a motion-vector memory (42), which is able to contain data identifying said motion vectors previously calculated. The system further comprises an arithmetic and logic unit (46) co-operating with the aforesaid program memory (40) and motion-vector memory (42), with the possibility of generating motion vectors (MV) in a programmable way so as to get them to correspond, for example, to predictors deriving from motion-estimation operations already performed on the macroblocks of the reference frame or on the previous macroblocks of the current frame, as updates calculated using the coordinates of the motion vectors already issued for the current macroblock, or again as absolute motion vectors, generated as such, taking the components directly from the program code.

    10.
    发明专利
    未知

    公开(公告)号：ITTO20020570D0

    公开(公告)日：2002-07-01

    申请号：ITTO20020570

    申请日：2002-07-01

    Applicant: ST MICROELECTRONICS SRL

    Inventor： PAU DANILO ,  ALFONSO DANIELE ,  PICCINELLI EMILIANO ,  SIGNORELLI TIZIANA

    IPC: G09G3/36 ,  G09G5/36 ,  H04N9/64

    Abstract: An RGB digital video signal destined to be displayed on a display such as a liquid crystal display (LCD) is converted from the RGB colour space to the YUV colour space. The signal converted into the YUV colour space is subjected to at least a processing operation selected among a sub-sampling operation (24) and a data compression operation (26). The signal is then stored in a memory and the signal read from said memory (12) is then subjected to at least a return operation (28, 30) complementary to the aforesaid processing operation (24, 26). The signal subjected to the aforesaid return operation is lastly reconverted from the YUV colour space to the RGB colour space, thus being susceptible to be displayed on the display.

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