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    IMAGE MANAGING METHOD AND IMAGE STORAGE SIZE MANAGEMENT SYSTEM
    1.
    发明专利
    IMAGE MANAGING METHOD AND IMAGE STORAGE SIZE MANAGEMENT SYSTEM 审中-公开

    公开(公告)号：JP2003162435A

    公开(公告)日：2003-06-06

    申请号：JP2002240078

    申请日：2002-08-21

    Applicant: IBM

    Inventor： MITCHELL JOAN LAVERNE ,  PRAKASH RAVI

    IPC: G06F12/00 ,  G06T3/40 ,  G06F17/60

    Abstract: PROBLEM TO BE SOLVED: To provide an image management method and an image storage size management system. SOLUTION: Using a reduction standard, it is determined how much to reduce the storage size of an image over the time progress. In a first embodiment, reduction of data storage size degrades the image quality. A reduced image replaces the previous reduced image. The reduced image storage size allows longer access to the information in quick access storage and quicker transmission time. COPYRIGHT: (C)2003,JPO

    DIGITAL IMAGE DATA COMPRESSION APPARATUS
    2.
    发明专利
    DIGITAL IMAGE DATA COMPRESSION APPARATUS 未知

    公开(公告)号：DE3177015D1

    公开(公告)日：1989-04-20

    申请号：DE3177015

    申请日：1981-11-25

    Applicant: IBM

    Inventor： MITCHELL JOAN LAVERNE

    IPC: H03M5/04 ,  G06T9/00 ,  H03M7/42 ,  H04L23/00 ,  H04N1/411 ,  H04N1/413 ,  H04N1/417 ,  H04N1/419 ,  H04N1/41

    Abstract: A system for encoding images by assigning variablelength code words to fixed positions in a dynamic stack. Each position in the dynamic stack is occupied by a representation of an encodable image feature, such as a run-length or a vertical correlation. These codes are arranged in order of their respective frequencies of occurrence. The order in which these features are stacked is varied dynamically by the system, in accordance with their respective frequencies of occurrence and a predetermined scheme. Thus, the system can adapt to different types of documents being scanned, or to changes of scanning resolution. A relationship extists between the code words and the stack positions, which are not permanently assigned to specific image features. This arrangement ensures that the lengths of code words will be inversely related to their frequencies of occurrence under all conditions.

    Reduced-error processing of transformed digital data
    3.
    发明专利
    Reduced-error processing of transformed digital data 未知

    公开(公告)号：GB2344716A

    公开(公告)日：2000-06-14

    申请号：GB9924446

    申请日：1999-10-18

    Applicant: IBM

    Inventor： BRIGHT MARTIN JAMES ,  MITCHELL JOAN LAVERNE

    IPC: H04N1/41 ,  G06T9/00 ,  H03M7/30 ,  H04N7/26 ,  H04N7/30 ,  H04N7/32 ,  H04N7/50

    Abstract: This invention solves problems due to employing error degraded data in digital processing. It particularly solves multi-generation problems wherein transform data degrade during each inverse transform and forward transform cycle even without any processing due to the rounding and clipping errors. It provides methods, systems and devices for reduced-error processing of transform-coded data. After inverse transformation of transform data, high-precision numbers are manipulated. The converting to integers and clipping to an allowed range steps are executed at any stage in the manipulation to obtain integer representation of the inverse transformed data such as for displaying of the data. However, further processing including forward transforming back to the transform domain is executed on the high-precision numbers. Thus, the rounding and clipping errors are not present in the processed data. Although advantageous to many applications employing digital transformed data, the invention is particularly advantageous for use in digital studios during editing of MPEG-coded, JPEG-coded and wavelet-coded video and audio data.

    5.
    发明专利
    未知

    公开(公告)号：DE3381696D1

    公开(公告)日：1990-08-02

    申请号：DE3381696

    申请日：1983-03-04

    Applicant: IBM

    Inventor： MITCHELL JOAN LAVERNE ,  PENNEBAKER WILLIAM BOONE

    IPC: H04N7/32 ,  G06T7/20 ,  G06T9/00 ,  H04N7/36 ,  H04N7/13

    Abstract: in an image processing system, a method is shown for efficiently transmitting data representing picutre information in fields subsequent to a first field and for suppressing motion induced flicker in the processed image. Using previously processed first field data which is used to predict values for picture elements in subsequent fields, a gradient value is calculated which indicates relative picture activity. A difference value for the picture elements in the subsequent fields is calculated and is limited in magnitude by the gradient value for each picture element. The limited difference value is encoded as a function of previous difference value and transmitted to a remote location for decoding and picture reconstruction and display.

    REDUCED-ERROR PROCESSING OF TRANSFORMED DIGITAL DATA
    8.
    发明专利
    REDUCED-ERROR PROCESSING OF TRANSFORMED DIGITAL DATA 未知

    公开(公告)号：MY130637A

    公开(公告)日：2007-07-31

    申请号：MYPI9904737

    申请日：1999-11-02

    Applicant: IBM

    Inventor： BRIGHT MARTIN JAMES ,  MITCHELL JOAN LAVERNE

    IPC: H04N1/41 ,  G06T9/00 ,  H04N7/30 ,  H03M7/30 ,  H04N7/26 ,  H04N7/32 ,  H04N7/50

    Abstract: THIS INVENTION SOLVES THE PROBLEM OF EMPLOYING ERROR DEGRADED DATA IN DIGITAL PROCESSING. IT MOST PARTICULARLY SOLVES THE MULTI-GENERATION PROBLEM WHEREIN TRANSFORM DATA (110,115) DEGRADE DURING EACH INVERSE TRANSFORM (120) AND FORWARD TRANSFORM (410) CYCLE EVEN WITHOUT ANY PROCESSING DUE TO THE ROUNDING AND CLIPPING ERRORS. IT PROVIDES A NOVEL METHOD, SYSTEM AND APPARATUS FOR REDUCED-ERROR PROCESSING OF TRANSFORM-CODED DATA (210, 215). AFTER INVERSE TRANSFORMATION OF TRANSFORM DATA THE HIGH PRECISION NUMBERS ARE MANIPULATED. THE CONVERTING TO INTEGERS AND CLIPPING TO AN ALLOWED RANGE STEPS ARE EXECUTED AT ANY STAGE IN THE MANIPULATION TO OBTAIN INTEGER REPRESENTATION OF THE INVERSE TRANSFORMED DATA SUCH AS FOR DISPLAYING OF THE DATA.HOWEVER, FURTHER PROCESSING INCLUDING FORWARD TRANSFORMING BACK TO THE TRANSFORM DOMAIN IS EXECUTED ON THE HIGH PRECISION NUMBERS. THUS, THE ROUNDING AND CLIPPING ERRORS ARE NOT PRESENT IN THE PROCESSED DATA. THE INVENTION IS PARTICULARLY ADVANTAGEOUS FOR USE IN DIGITAL STUDIOS DURING EDITING OF MPEG-, JPEG-AND WAVELET-CODED VIDEO AND AUDIO DATA.(FIG 11A)

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