Communications – electrical: acoustic wave systems and devices – Acoustic image conversion
Patent
1984-06-12
1987-09-15
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Acoustic image conversion
73626, 310720, 367110, 367113, G01N 2904, A61B 1000
Patent
active
046944346
ABSTRACT:
An acoustic pulse echo imaging system capable of producing an image of a three-dimensional object utilizing a two-dimensional display having perspective capabilities is described. In the system angular relationships of targets at all ranges are maintained for display. The system uses a two-dimensional transducer array of piezoelectric elements; the array is steered to assume transmit and receive orientations in both azimuth and elevation by producing (1) a directed transmit pulse and many similarly directed receive orientations or (2) a non-directed transmit pulse and many directed receive orientations. For each transmit pulse a parallel processing system produces several unique image points whose locations in the image correspond to the tangents of the angles of the receive orientations in the azimuth and elevation planes. The brightness of each image point is the weighted integral of the echo data received along each receive path. As an option, range discrimination capability is provided by means of a range dependent gain control, brightness shading as a function of range or a color display in which data originating from different ranges is displayed in different hues.
REFERENCES:
patent: 4030343 (1977-06-01), Lund et al.
patent: 4145680 (1979-03-01), Smith
patent: 4156304 (1979-05-01), Lee
patent: 4381675 (1983-05-01), Roberts et al.
patent: 4412544 (1983-11-01), Beretshy et al.
patent: 4489729 (1984-12-01), Sorensen et al.
patent: 4499771 (1985-02-01), Roberts et al.
patent: 4541435 (1985-09-01), Saita et al.
patent: 4550607 (1985-11-01), Masleh et al.
patent: 4596145 (1986-06-01), Smith et al.
Nagata, "How to Reinforce Perception . . . Pictures", 10/3/83, pp. 239-246, 3rd Intern. Disc. Research Conf., vol. 25, #3 Abst. Supplied.
Magee, et al, "Determining Vanishing Points . . . , 12/29/83, pp. 212-216, vol. 1, Proc. Int. Conf. a Lysts., Man . . . " India.
Canteloup et al, "Ultrasonic Visualization . . . Defects", pp. 50, 52, 53., Qualite Rev. Prat. Controle, Ind., vol. 19, #104.
Smith Stephen W.
von Ramm Olaf T.
LandOfFree
Three-dimensional imaging system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three-dimensional imaging system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-dimensional imaging system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1390023