公开(公告)号：JPH05145828A

公开(公告)日：1993-06-11

申请号：JP33295291

申请日：1991-11-22

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HORISHI MASARU ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G03B5/00 ,  G06T7/20

Abstract: PURPOSE:To provide the picture jiggle discrimination device capable of surely discriminating whether or not a detected motion vector results from a jiggle. CONSTITUTION:One pattern is divided into plural macro blocks in a form in which macro blocks not adjacent to each other are caused, a field difference absolute value detected by a field difference detection section 11 is integrated by a correlation integrated value table generating section 14 to form a correlation integration table for each macro block and a motion vector estimate section 18 estimates a motion vector. A jiggle discrimination section 19 compares an integrated value of a coordinate corresponding to the representative point picture element with an integrated value of a peripheral coordinate as to a correlation integrated value table for each macro block and discriminates it that the motion vector results from a jiggle when the comparison indicates the value not to be a minimum value.

公开(公告)号：JPH05137051A

公开(公告)日：1993-06-01

申请号：JP32673391

申请日：1991-11-15

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HORISHI MASARU ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G03B5/00 ,  G06T7/20

Abstract: PURPOSE:To correct the camera jiggle with high accuracy by detecting the motion vectors of images for each block based on the image data on the key point picture element and producing a correction signal after deciding surely a fact that the movement vectors are caused by the camera jiggle. CONSTITUTION:A camera jiggle deciding circuit 25 decides that the motion vector of an image detected by a motion vector detection part 10 is caused by the camera jiggle of the image if the frequency value of the coordinates corresponding to the preceding motion vector is smaller than a prescribed level in regard of a frequency distribution table produced by a frequency distribution table production circuit 24. If the relevant frequency value is larger than the prescribed level, the circuit 25 decides that the motion vector is not caused by the camera jiggle. When the decision output showing a fact that the motion vector is caused by the camera jiggle is supplied to a correction value generating part 30, the camera jiggle correction signal corresponding to the camera jiggle vector is produced and supplied to a correction part 40. Thus the video data undergone the correction of camera jiggle are outputted through a signal output terminal.

公开(公告)号：JPH05122585A

公开(公告)日：1993-05-18

申请号：JP30397591

申请日：1991-10-23

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HORISHI MASARU ,  HASHINO TSUKASA

IPC: H04N5/232

Abstract: PURPOSE:To surely correct blurring by judging whether the motion vector of an image is caused by blurring or not. CONSTITUTION:A motion vector detection part 10 detects the motion vector of the image by block matching. While using respective frequency distribution tables showing correlation among 1st-4th fields of representative point picture elements formed by 1st-4th condition frequency distribution table forming circuits 22A-22D, a blurring judgement circuit 24 judges blurring. A correcting amount generation part 30 generates the blurring correction signal corresponding to the motion vector caused by the blurring of the image, and a correction part 40 executes the blurring correction to the input video signal.

公开(公告)号：JPH05110929A

公开(公告)日：1993-04-30

申请号：JP29653391

申请日：1991-10-17

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HORISHI MASARU ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G06T7/20

Abstract: PURPOSE:To provide the camera shake judging device for an image so as to surely judge whether the motion vector of the image is caused by camera shake or not. CONSTITUTION:A condition judging circuit 43 judges a picture element for which the absolute value of difference between the image data of respective picture elements in the block of a current frame and the image data of a representative point picture element in the block of the preceding frame read out of a representative point memory 41 satisfies a prescribed condition, and a frequency distribution table forming circuit 44 forms a frequency distribution table corresponding to the judged result. The number of coordinates having frequency values larger than the prescribed value is calculated near a coordinate designated by the motion vector of the image concerning the frequency distribution table and when the calculated value is smaller than the prescribed value, a camera shake vector judging circuit 46 judges that the motion vector is caused by camera shake.

公开(公告)号：JP2002203247A

公开(公告)日：2002-07-19

申请号：JP2001343752

申请日：2001-11-08

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G06T7/20

Abstract: PROBLEM TO BE SOLVED: To detect a motion vector with high accuracy even when a moving object exists in an image and to perform high performance vibrations correction of an image. SOLUTION: A field difference detecting part 11 and a macro vector detecting part 12 divide one image into a plurality of macro blocks in the form of generating macro blocks that do not adjoin each other, and a motion vector is detected in each macro block. When almost same motion vectors are detected in at least two macro blocks that do not adjoin each other, an independent/quasi- independent vector deciding part 15 detects the whole motion vectors of the image with the macro blocks as effective macro blocks, and when the whole motion vectors are not detected, a correcting part 30 corrects the vibrations of images constituting the image on the basis of the whole motion vectors of the image outputted from a hand shaking vector deciding part 16 on the basis of the time correlation between the position information of macro blocks having the same motion vector on the present image and the position information of the effective macro blocks of the preceding image.

公开(公告)号：JPH06133287A

公开(公告)日：1994-05-13

申请号：JP27738592

申请日：1992-10-15

Applicant: SONY CORP

Inventor： TAKAHASHI KENJI ,  HASHINO TSUKASA

IPC: H04N1/41 ,  G06T9/00 ,  H03M7/30 ,  H04N19/00 ,  H04N19/132 ,  H04N19/134 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/182 ,  H04N19/189 ,  H04N19/192 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70 ,  H04N19/85 ,  H04N7/13 ,  G06F15/66

Abstract: PURPOSE:To reduce deterioration in decoded picture data by discriminating the transmission based on significance information and decreasing a threshold level when number of transmitted picture data is less than a specified number. CONSTITUTION:Data obtained by an interpolation prediction circuit 6 through prediction are fed to a prediction error detection circuit 7, from which prediction error data. The data are multiplied with coefficient data from a coefficient generating circuit 8 at a multiplier circuit 9 and the product is written in a frequency distribution memory of a control code generating circuit 10, from which a frequency distribution table is generated and a threshold level is generated based on the table. A control code generated from the circuit 10 is given to a control circuit 1, from which a data output control code is given to an input output circuit 3. The frequency distribution table in which data representing transmission/non-transmission of each of picture element data are listed is formed in a memory in the circuit 10, a threshold level is obtained based on the distribution table, and sampling processing is applied to the data to decide transmission/non-transmission of picture element data read from the memory 5. Thus, lot of picture element data are sent in response to the transmission picture element number and then the transmission efficiency is improved and the deterioration in the decoded picture is minimized.

公开(公告)号：JPH0698294A

公开(公告)日：1994-04-08

申请号：JP24234892

申请日：1992-09-10

Applicant: SONY CORP

Inventor： KAWAGUCHI KUNIO ,  HASHINO TSUKASA

IPC: H04N5/91 ,  H04N5/92 ,  H04N7/26 ,  H04N7/13

Abstract: PURPOSE:To reduce a transmission rate after reproducing a signal recorded by compression-encoding on a recording medium and decoding it in a reproducing system, by compression-encoding by a compression-encoding means, and making it a dubbing signal. CONSTITUTION:A dynamic range specified by a discrete cosine transformation or the maximum value and minimum value of plural pixel data included in a block are obtained, and the block encoding for encoding respective pixel data in the block by a variable bit length adapted to the dynamic range is performed. Therefore, the blocking processing corresponding to an encoding used by a block encoding circuit 55 is performed by a locking circuit 54, and a block decoding and a block resolution corresponding to the block encoding used by the circuit 55 are performed by a block decoding circuit 65 and a block resolving circuit 66. Thus, the compressed data are used as the digital data for dubbing of a digital VTR, so that the transmission rate can be reduced, and an interface or a cable can be simplified.

公开(公告)号：JPH05344411A

公开(公告)日：1993-12-24

申请号：JP16829992

申请日：1992-06-04

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G03B5/00 ,  G06T7/20

Abstract: PURPOSE:To provide the blur detector for a picture in which a blur vector is detected with high precision even when a moving object is in existence in the picture. CONSTITUTION:A field difference detection section 11, a correlation integration list generating section 12 and a macro vector detection section 15 detect a motion vector for each of macro blocks being divisions of one pattern into plural numbers so that macro blocks not adjacent to each other are produced. Then a quasi-independent vector discrimination section 16 detects an almost same motion vector in macro blocks arranged in a recessed shape, its motion vector is outputted as a blur vector of the entire picture.

公开(公告)号：JPH05344410A

公开(公告)日：1993-12-24

申请号：JP16829892

申请日：1992-06-04

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G03B5/00

Abstract: PURPOSE:To provide the blur detector for a picture in which a blur vector is detected with high precision even when a moving object is in existence in the picture. CONSTITUTION:A field difference detection section 11, a correlation integration list generating section 12 and a macro vector detection section 15 detect a motion vector for each of macro blocks being divisions of one pattern into plural numbers so that macro blocks not adjacent to each other are produced. Then a blur vector discrimination section 16 discriminates time correlation of motion vectors for each macro block and a motion vector whose time correlation is discriminated significant is outputted as a blur vector of the entire picture.

公开(公告)号：JPH05336432A

公开(公告)日：1993-12-17

申请号：JP16378992

申请日：1992-05-30

Applicant: SONY CORP

Inventor： KONDO TETSUJIRO ,  FUJIMORI YASUHIRO ,  UCHIDA MASASHI ,  HASHINO TSUKASA

IPC: H04N5/232 ,  G03B5/00

Abstract: PURPOSE:To provide the camera shake detecting device for the image which detects a hand shake vector with high precision by interpolation even when the image contains a body in motion. CONSTITUTION:A field difference detection part 11, a correlative integrated value table generation part 12, and a macrovector detection part 15 detect motion vectors by macrovectors obtained by dividing one screen into plural parts so that the macrovectors which do not adjoin to each other are generated. Then an effective vector decision part 16 and a vector determination part 17 regards the minimum value coordinate of each macrovector in an integrated value table as a hand shake vector candidate to detect the same motion vectors in at least two macrovectors at spatially isolated positions, and outputs the motion vectors as hand shake vectors.