公开(公告)号：JPH10290801A

公开(公告)日：1998-11-04

申请号：JP4639898

申请日：1998-02-13

Applicant: ADVANCED TECH LAB ,  ATLANTIS DIAGNOSTIC INTERNATL

Inventor： DAIGLE RONALD E ,  ROBINSON BRENT STEPHEN ,  COOLEY CLIFFORD R

IPC: A61B8/00 ,  G01S7/52 ,  G06T1/00

Abstract: PROBLEM TO BE SOLVED: To prepare two interpolation lines in line positions deviated from a position of a receiver line and improve the linear density of an ultrasonic image by interpolating in a space toward another receiver scanning line. SOLUTION: The method is used when a continuous receiving scanning line prepares two interpolation image lines in different positions between the receiving operation line positions. This is implemented by an interpolator 30. A line buffer 14 delays respective receiving scanning lines by the time of a line segment. The delayed line and the line receiving at present are weighted by weighted coefficients a1 , a2 and then the weighted scanning line signals are coupled with each other by adding circuits 32, 34. Secondly, the interpolated signals are detected and converted into desired image modes by a scanning converter so as to be displayed.

公开(公告)号：DE69424636D1

公开(公告)日：2000-06-29

申请号：DE69424636

申请日：1994-12-29

Applicant: ADVANCED TECH LAB

Inventor： ROBINSON BRENT STEPHEN ,  COOLEY CLIFFORD R ,  HWANG JUIN-JET ,  ENTREKIN ROBERT R

IPC: G01S7/52 ,  G01S15/89

Abstract: The ultrasonic diagnostic imaging system scans an image region to receive a number of spatially arranged lines of ultrasonic image information signals. The ultrasonic line information signals are used in an interpolater to interpolate one or more lines which are spatially interlineated between each pair of spatially adjoining received lines. The interpolated lines are produced using either the received RF or demodulated IF ultrasonic image information signals. The interpolated lines are produced prior to scan conversion, and preferably prior to nonlinear processing such as detection or log compression to reduce spatial aliasing artifacts. Pref the interpolater comprises a transversal filter of four taps which is responsive to received line information signals from a common range or depth or the interpolater may be adaptively responsive to motion to select samples for interpolation which would be spatially at the same range in the absence of motional effects.

公开(公告)号：AU5390798A

公开(公告)日：1998-08-20

申请号：AU5390798

申请日：1998-02-12

Applicant: ADVANCED TECH LAB ,  ATLANTIS DIAGNOSTICS INTERNATI

Inventor： DAIGLE RONALD E ,  ROBINSON BRENT STEPHEN ,  COOLEY CLIFFORD R

IPC: A61B8/00 ,  G01S7/52 ,  G06T1/00 ,  G06T5/00 ,  A61B8/13

Abstract: A method and apparatus are provided for interpolating image lines from ultrasonically obtained scanlines of an image region. The interpolated lines are preferably formed one-quarter and three-quarters of the distance between each pair of received scanlines by combining weighted samples of the adjacent scanlines in proportion to their distances from the interpolated lines. The received scanlines are preferably formed by a beamformer which samples the received lines at quadrature phases of the scanhead center frequency and filters the samples by combining successive samples of a related phase. The image lines are scan converted by computing a grid of weighted values between each pair of image lines, and using the closest value for each pixel in the ultrasound image.

公开(公告)号：DE69424636T2

公开(公告)日：2001-01-25

申请号：DE69424636

申请日：1994-12-29

Applicant: ADVANCED TECH LAB

Inventor： ROBINSON BRENT STEPHEN ,  COOLEY CLIFFORD R ,  HWANG JUIN-JET ,  ENTREKIN ROBERT R

IPC: G01S7/52 ,  G01S15/89

Abstract: The ultrasonic diagnostic imaging system scans an image region to receive a number of spatially arranged lines of ultrasonic image information signals. The ultrasonic line information signals are used in an interpolater to interpolate one or more lines which are spatially interlineated between each pair of spatially adjoining received lines. The interpolated lines are produced using either the received RF or demodulated IF ultrasonic image information signals. The interpolated lines are produced prior to scan conversion, and preferably prior to nonlinear processing such as detection or log compression to reduce spatial aliasing artifacts. Pref the interpolater comprises a transversal filter of four taps which is responsive to received line information signals from a common range or depth or the interpolater may be adaptively responsive to motion to select samples for interpolation which would be spatially at the same range in the absence of motional effects.

公开(公告)号：AT193380T

公开(公告)日：2000-06-15

申请号：AT94309910

申请日：1994-12-29

Applicant: ADVANCED TECH LAB

Inventor： ROBINSON BRENT STEPHEN ,  COOLEY CLIFFORD R ,  HWANG JUIN-JET ,  ENTREKIN ROBERT R

IPC: G01S7/52 ,  G01S15/89

Abstract: The ultrasonic diagnostic imaging system scans an image region to receive a number of spatially arranged lines of ultrasonic image information signals. The ultrasonic line information signals are used in an interpolater to interpolate one or more lines which are spatially interlineated between each pair of spatially adjoining received lines. The interpolated lines are produced using either the received RF or demodulated IF ultrasonic image information signals. The interpolated lines are produced prior to scan conversion, and preferably prior to nonlinear processing such as detection or log compression to reduce spatial aliasing artifacts. Pref the interpolater comprises a transversal filter of four taps which is responsive to received line information signals from a common range or depth or the interpolater may be adaptively responsive to motion to select samples for interpolation which would be spatially at the same range in the absence of motional effects.