Apparatus and method for image processing including one-dimensio

Details Apparatus and method for image processing including one-dimensio Apparatus and method for image processing including one-dimensio

1992-12-21

1994-04-05

Jaworski, Francis

Surgery

Truss

Pad

73602, A61B 800

Patent

active

052995771

ABSTRACT:
An apparatus (10) and method for real-time reduction of noise components from echographic images. A plurality of scan line processor circuits (22) are connected through an interface (18) to an echographic imaging apparatus (20), such as an ultrasonic imaging device. Each scan line processor circuit (22) receives a row of dirty image signals (24) and simultaneously and independently performs a one-dimensional side lobe subtraction of noise components (a deconvolution of the dirty beam pattern) from the row of signals using a CLEAN algorithm. After subtraction, the resulting clean components are convolved by the scan line processor circuits (22) with a clean beam pattern to smooth the image for display. Finally, the clean image signals optionally can be masked by a masking multiplier (52) to remove processing artifacts and compressed by a compression device (56) to enhance contrast. The resulting masked and compressed clean image signals (26) are then displayed on a display device (17,20). A sufficient number of scan line processor circuits (22), relative to the number of rows in a complete image frame, are provided to effect real-time processing of image frames.

REFERENCES:
patent: 4277367 (1981-07-01), Madsen et al.
patent: 5105814 (1992-04-01), Drukarey et al.
patent: 5111823 (1992-05-01), Cohen

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