公开(公告)号：DE60127631D1

公开(公告)日：2007-05-16

申请号：DE60127631

申请日：2001-02-08

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  NAKAYA HIDEO ,  WATANABE TSUTOMU ,  OHTSUKA HIDEKI ,  TAKAHASHI YASUAKI ,  WADA SEIJI ,  NAGANO TAKAHIRO ,  OHTA KOJI

IPC: H04N7/01 ,  H04N5/14 ,  H04N5/21 ,  H04N5/44 ,  H04N7/26 ,  H04N7/30 ,  H04N7/36 ,  H04N7/46 ,  H04N19/593 ,  H04N19/895

Abstract: An effective pixel area calculating circuit (11) detects position information indicating the position of a target pixel in a frame. A lacking pixel creating circuit (12) determines the class of the target pixel from a plurality of classes in accordance with the position information, then selects a plurality of pixels from an input image signal as a prediction tap, and carries out arithmetic processing based on conversion data obtained in advance by learning for each class and the prediction tap, thus outputting an output image signal of higher quality than the input image signal.

公开(公告)号：CA2420069A1

公开(公告)日：2003-02-19

申请号：CA2420069

申请日：2002-06-26

Applicant: SONY CORP

Inventor： FUJIWARA NAOKI ,  MIYAKE TORU ,  WADA SEIJI ,  SAWAO TAKASHI ,  KONDO TETSUJIRO ,  NAGANO TAKAHIRO ,  ISHIBASHI JUNICHI

IPC: G06T3/00 ,  G06T5/00 ,  G06T7/20 ,  H04N5/262 ,  H04N19/00 ,  H04N19/132 ,  H04N19/137 ,  H04N19/167 ,  H04N19/196 ,  H04N19/20 ,  H04N19/423 ,  H04N19/50 ,  H04N19/51 ,  H04N19/543 ,  H04N19/59 ,  H04N19/85 ,  G06T1/00

Abstract: A region of a background image, a region of a moving object image, and a region having a mixed image are identified. A mixture ratio calculation bloc k (103) extracts pixel data of peripheral portion of a frame around the target pixel of the target frame of image data as a background pixel data corresponding to a background object, extracts the target pixel data of the target pixel contained in the target frame, generates a plurality of relationship equations indicating the relationship between the target pixel data and the background pixel data, and calculates a mixture ratio of the mixture state of the object according to the relationship equations. A regio n identification block (104) substitutes the calculated mixture ratio in the relationship equations, calculates a predicted error, and identifies the region to which the target pixel belongs as a covered background region, an uncovered background region, a foreground region, or a background region. Th e present invention can be applied to an image processing apparatus.

公开(公告)号：CA2420013A1

公开(公告)日：2003-02-18

申请号：CA2420013

申请日：2002-06-25

Applicant: SONY CORP

Inventor： FUJIWARA NAOKI ,  ISHIBASHI JUNICHI ,  SAWAO TAKASHI ,  MIYAKE TORU ,  NAGANO TAKAHIRO ,  WADA SEIJI ,  KONDO TETSUJIRO

IPC: G06T3/00 ,  G06T7/00 ,  G06T7/20 ,  H04N5/14 ,  H04N5/262 ,  G06T1/00 ,  H04N5/335

Abstract: A motion amount indicating movement of an object during an exposure time can be obtained. An estimated mixture ratio processing block, performs calculati on corresponding to a model of a covered background region so as to calculate a n estimated mixture ratio for each pixel and an estimated motion vector and supplies the estimated mixture ratio and the estimated motion vector which have been calculated to a mixture ratio determination block. An estimated mixture ratio processing block (402) performs a calculation corresponding to a model of an uncovered background region so as to calculate an estimated mixture ratio for each pixel and a motion vector and supplies the estimated mixture ratio and the estimated motion vector which have been calculated to the mixture ratio determination block (403). The mixture ratio determination block (403) sets a mixture ratio and a motion vector in accordance with regi on information indicating to which of the foreground region, the background region, the covered background region, and the uncovered background region, a pixel belongs. The present invention can be applied to an image processing apparatus.

公开(公告)号：CA2419670A1

公开(公告)日：2003-01-03

申请号：CA2419670

申请日：2002-06-19

Applicant: SONY CORP

Inventor： WADA SEIJI ,  KONDO TETSUJIRO ,  FUJIWARA NAOKI ,  MIYAKE TORU ,  NAGANO TAKAHIRO ,  ISHIBASHI JUNICHI ,  SAWAO TAKASHI

IPC: G06T3/00 ,  G06T5/00 ,  G06T7/20 ,  H04N5/14 ,  H04N5/262 ,  H04N5/272 ,  H04N19/00 ,  H04N19/51 ,  H04N19/513 ,  G06T1/00

Abstract: An area where mixture is present can be detected. An object extracting unit (251) extracts a foreground object from an input image and generates an area specific object composed of the image object of the foreground and a value representing that the pixel is in the background area. A motion compensation unit (252) carries out motion compensation of the area specific object on th e basis of the supplied motion vector and its position information. A subtraction unit (254) subtracts the pixel value of a pixel in the corresponding position in the foreground area of the area specific object of frame #n-1 supplied from a frame memory (253) from the pixel value of a pixe l in the foreground area of the area specific object of frame #n supplied from the object extracting unit (251) so as to determine the frame difference of the pixels in the foreground area. A threshold processing unit (255) extract s a mixture area according to the frame difference. The invention can be appli ed to a signal processor for processing an image.

公开(公告)号：CA2418810A1

公开(公告)日：2002-12-27

申请号：CA2418810

申请日：2002-06-13

Applicant: SONY CORP

Inventor： ISHIBASHI JUNICHI ,  FUJIWARA NAOKI ,  SAWAO TAKASHI ,  NAGANO TAKAHIRO ,  KONDO TETSUJIRO ,  MIYAKE TORU ,  WADA SEIJI

IPC: G06T1/00 ,  G06T3/00 ,  G06T5/00 ,  G06T7/00 ,  G06T7/20 ,  H04N5/208 ,  H04N5/232 ,  H04N5/262 ,  H04N5/272

Abstract: An image processing apparatus capable of coping with mixture of a background image and a moving object image. A region identification block (103), in accordance with an input image, identifies a mixed region where a foreground object component constituting a foreground object and a background object component constituting a background object are mixed and a non-mixed region where only one of the foreground region composed of a foreground object component and the background region composed of a background object componen t is present, and outputs region information in accordance with the identification result. A region processing block (5001) processes an input image for each of the regions identified by the region information. The present invention can be applied to an image processing apparatus for processing an image.

公开(公告)号：CA2420029C

公开(公告)日：2011-08-23

申请号：CA2420029

申请日：2002-06-26

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  SAWAO TAKASHI ,  ISHIBASHI JUNICHI ,  NAGANO TAKAHIRO ,  FUJIWARA NAOKI ,  MIYAKE TORU ,  WADA SEIJI

IPC: G06T7/20 ,  H04N5/262 ,  H04N5/00 ,  H04N7/16 ,  H04N7/173 ,  H04N7/18 ,  H04N7/24 ,  H04N7/36 ,  H04N7/50 ,  H04N19/00 ,  H04N19/20 ,  H04N19/25 ,  H04N19/46 ,  H04N19/51 ,  H04N19/70 ,  H04N21/232 ,  H04N21/2343 ,  H04N21/274 ,  H04N21/4223

Abstract: The present invention makes it possible to process at high speed the foreground component image and the background component image of picked up images on a network platform. A client computer 27 outputs information specifying image data desired to separate to a separation server 11. The separation server 11 obtains the specified image data from a storage server 18 and outputs it to a motion detecting server 12 to perform motion detection processing. Thereafter, the image data, motion vector and positional information are output to an area specifying server 13. The area specifying server 13 generates area information of the image data and outputs the area information to a mixture ratio calculating server 14 in addition to the image data, the motion vector and the positional information. The mixture ratio calculating server 14 calculates a mixture ratio on the basis of the image data, the motion vector, the positional information and the area information, and a foreground/background image separation server 15 separates foreground and background of the input image on the basis of such information. The present invention may be employed in a business model for image processing.

公开(公告)号：CA2420013C

公开(公告)日：2011-07-26

申请号：CA2420013

申请日：2002-06-25

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIWARA NAOKI ,  ISHIBASHI JUNICHI ,  SAWAO TAKASHI ,  NAGANO TAKAHIRO ,  MIYAKE TORU ,  WADA SEIJI

IPC: G06T3/00 ,  G06T7/20 ,  G06T1/00 ,  G06T7/00 ,  H04N5/14 ,  H04N5/262 ,  H04N5/372

Abstract: The present invention allows the amount of movement indicating the movement of an object within an exposure period to be obtained. An estimated-mixture-ratio processor 401 calculates an estimated mixture ratio for each pixel and an estimated motion vector by a calculation corresponding to a model of a covered background area, and sends the calculated estimated mixture ratio and the calculated estimated motion vector to a mixture-ratio determining portion 403. An estimated-mixture-ratio processor 402 calculates an estimated mixture ratio for each pixel and an estimated motion vector by a calculation corresponding to a model of an uncovered background area, and sends the calculated estimated mixture ratio and the calculated estimated motion vector to the mixture-ratio determining portion 403. The mixture-ratio determining portion 403 sets a mixture ratio and a motion vector according to area information indicating to which of a foreground area, a background area, the covered background area, or the uncovered background area a designated pixel belongs. The present invention can be applied to image processing apparatuses.

公开(公告)号：DE60239268D1

公开(公告)日：2011-04-07

申请号：DE60239268

申请日：2002-04-01

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  SAWAO TAKASHI ,  ISHIBASHI JUNICHI ,  NAGANO TAKAHIRO ,  FUJIWARA NAOKI ,  MIYAKE TORU ,  WADA SEIJI

IPC: G06T5/20 ,  H04N5/262 ,  G06T1/00 ,  G06T3/00 ,  G06T5/00 ,  G06T7/20 ,  H04N5/21 ,  H04N5/232 ,  H04N5/272 ,  H04N5/335

公开(公告)号：CA2646792C

公开(公告)日：2010-09-28

申请号：CA2646792

申请日：2000-12-28

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  ISHIBASHI JUNICHI ,  SAWAO TAKASHI ,  WADA SEIJI ,  MIYAKE TOHRU ,  NAGANO TAKAHIRO ,  FUJIWARA NAOKI

IPC: G01P13/00 ,  G01G19/03 ,  G01J5/02 ,  G01L5/00 ,  G06T1/00 ,  G06T5/00 ,  G06T5/50 ,  G06T7/20

Abstract: A signal processor 12 acquires a second signal obtained by detecting a first signal, as a signal of the real world, having a first dimension. The second signal is of a second dimension lower than the first dimension and has distortion relative to the first signal. The signal processor 12 performs signal processing which is based on the second signal to generate a third signal alleviated in distortion as compared to the second signal.

公开(公告)号：CA2420020C

公开(公告)日：2010-09-28

申请号：CA2420020

申请日：2002-06-26

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  ISHIBASHI JUNICHI ,  SAWAO TAKASHI ,  FUJIWARA NAOKI ,  NAGANO TAKAHIRO ,  WADA SEIJI ,  MIYAKE TORU

IPC: G06T1/00 ,  G06T7/20 ,  G06T3/00 ,  G06T5/00 ,  H04N5/217 ,  H04N5/262 ,  H04N5/272 ,  H04N5/357

Abstract: The present invention aims to recognize the mixture state of images. An area specifying unit 103 specifies a mixed area in which foreground object components which form a foreground object and background object components which form a background object are mixed. An estimated-mixture- ratio calculator 104 detects, in correspondence with the image data, the mixture ratio indicating the ratio of the mixture of the foreground object components to the mixture of the background object components in the mixed area in which the foreground object components and the background object components are mixed. At least one of the area specifying unit 103 and the estimated-mixture-ratio calculator 104 performs image processing on the basis of a plurality of types of components. The present invention can be applied to an image processing apparatus.