中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

22 records (took 0.023 seconds)

    METHOD FOR CONTRAST ENHANCEMENT IN COLOR DIGITAL IMAGE
    1.
    发明专利
    METHOD FOR CONTRAST ENHANCEMENT IN COLOR DIGITAL IMAGE 有权

    公开(公告)号：JP2003199115A

    公开(公告)日：2003-07-11

    申请号：JP2002331847

    申请日：2002-11-15

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CASTORINA ALFIO ,  MANCUSO MASSIMO ,  BATTIATO SEBASTIANO

    IPC: G06T5/00 ,  G06T5/40 ,  H04N1/407 ,  H04N5/235 ,  H04N9/04 ,  H04N101/00

    Abstract: PROBLEM TO BE SOLVED: To provide an exposure correction method for improving the quality of a digital image acquired with a no-optimal exposure and taking into account the face that regions, which are important from the perceptive or content point of view, exist in the image. SOLUTION: The method, which is applied directly to the image in CFA (Color Filter Array) format, identifies the regions of the image that are most important from the perceptive or content point of view by means of simple statistical measures. The image is then transformed by inverting then response function is such a manner as to optimize the quality of these regions. COPYRIGHT: (C)2003,JPO

    5.
    发明专利
    未知

    公开(公告)号：DE60203166T2

    公开(公告)日：2006-03-23

    申请号：DE60203166

    申请日：2002-06-12

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MESSINA GIUSEPPE ,  MANCUSO MASSIMO ,  BATTIATO SEBASTIANO

    IPC: H04N1/40 ,  G06T3/40 ,  G06T5/00 ,  G06T5/50 ,  H04N3/15 ,  H04N7/01

    Abstract: A method for obtaining a high-resolution digital image from a plurality of starting images P,S formed by pixel matrices and acquired at a lower resolution. The method comprises a phase of combining the plurality of starting images P,S to generate a provisional high-resolution image HR formed by a pixel matrix. The method also comprises a calculation phase to associate a respective error with at least a part of the pixels of the provisional image HR , said calculation phase providing a first error associated with at least one first pixel, and a phase of at least partially processing the provisional image by modifying the pixels of this image on the basis of the respective errors associated with them. The method is characterized by the fact that the calculation phase includes the phase of: calculating a second error to associate with at least one second pixel situated in the vicinity of said first pixel in the matrix (HR ), said second error being calculated by using the first error associated with said at least one first pixel.

    6.
    发明专利
    未知

    公开(公告)号：ITRM20030345D0

    公开(公告)日：2003-07-15

    申请号：ITRM20030345

    申请日：2003-07-15

    Applicant: ST MICROELECTRONICS SRL

    Inventor： CURTI SALVATORE ,  BATTIATO SEBASTIANO ,  SCORDATO EMILIANO ,  TORTORA MARCELLO ,  ARDIZZONE EDOARDO ,  LA CASCIA MARCO

    IPC: G06T7/00

    Abstract: There is described a method of obtaining a depth map from a single digital image of a three-dimensional scene containing geometric objects. It envisages the identification in the image of at least one horizontal plane or one vertical plane of the three-dimensional scene and the assignment to every point of the image forming part of the identified plane, or to each one of the identified planes, of a depth level according to its distance from, respectively, a predetermined horizontal or vertical reference straight of the image. In particular, the identification of at least one plane comprises the identification in the image of at least two vanishing lines corresponding to two parallel lines in the plane and the assignment of a depth level is made in accordance with the angular coefficients of the identified vanishing lines. Also described is a completely automatic method for obtaining a depth map from a single digital image of any three-dimensional scene.

    8.
    发明专利
    未知

    公开(公告)号：DE60114651T2

    公开(公告)日：2006-06-01

    申请号：DE60114651

    申请日：2001-12-14

    Applicant: ST MICROELECTRONICS SRL

    Inventor： BATTIATO SEBASTIANO ,  MANCUSO MASSIMO

    IPC: H04N7/30 ,  H04N7/26

    Abstract: A method of compressing digital images acquired in CFA (colour filter array) format (3) that utilizes optimised quantization matrices. The method, basing itself on the statistical characterization of the error introduced during the processing phase (4,5) that precedes compression (6), appropriately modifies the coefficients of any initial quantization matrix, even of a standard type, obtaining a greater compression efficiency without introducing further quality losses.

    9.
    发明专利
    未知

    公开(公告)号：DE60114651D1

    公开(公告)日：2005-12-08

    申请号：DE60114651

    申请日：2001-12-14

    Applicant: ST MICROELECTRONICS SRL

    Inventor： BATTIATO SEBASTIANO ,  MANCUSO MASSIMO

    IPC: H04N7/26 ,  H04N7/30

    Abstract: A method of compressing digital images acquired in CFA (colour filter array) format (3) that utilizes optimised quantization matrices. The method, basing itself on the statistical characterization of the error introduced during the processing phase (4,5) that precedes compression (6), appropriately modifies the coefficients of any initial quantization matrix, even of a standard type, obtaining a greater compression efficiency without introducing further quality losses.

Patent Agency Ranking