Inventor · disambiguated record
Kwok C. Tam
Also filed as: TAM KWOK · TAM KWOK C · TAM KWOK CHEONG
55 granted patents·2,178 citations·filing 1981–2003
99Inventor score
Top patents by PatentIndex Score
55 records- 0195US5270926AMethod and apparatus for reconstructing a three-dimensional computerized tomography (CT) image of an object from incomplete cone beam projection dataGEN ELECTRIC·Filed 1990·Granted Dec 14, 1993·150 cites·8 claims
- 0290US5032990ATranslate rotate scanning method for x-ray imagingGEN ELECTRIC·Filed 1989·Granted Jul 16, 1991·75 cites·16 claims
- 0390US4506327ALimited-angle imaging using multiple energy scanningGEN ELECTRIC·Filed 1981·Granted Mar 19, 1985·62 cites·4 claims
- 0489US6574297B2System and method for image reconstruction in a cone beam imaging systemSIEMENS CORP RES INC·Filed 2001·Granted Jun 3, 2003·49 cites·18 claims
- 0585US6928137B2Method for generating an image by means of a tomography capable X-ray device with multi-row X-ray detector arraySIEMENS AG·Filed 2003·Granted Aug 9, 2005·38 cites·8 claims
- 0685US5463666AHelical and circle scan region of interest computerized tomographyGEN ELECTRIC·Filed 1993·Granted Oct 31, 1995·62 cites·21 claims
- 0784US5257183AMethod and apparatus for converting cone beam X-ray projection data to planar integral and reconstructing a three-dimensional computerized tomography (CT) image of an objectGEN ELECTRIC·Filed 1990·Granted Oct 26, 1993·79 cites·8 claims
- 0883US5355309ACone beam spotlight imaging using multi-resolution area detectorGEN ELECTRIC·Filed 1992·Granted Oct 11, 1994·74 cites·7 claims
- 0982US6459756B1System and method for providing normalization correction for image reconstruction in a reduced pitch spiral scan cone beam computed tomography imaging systemSIEMENS CORP RES INC·Filed 2001·Granted Oct 1, 2002·31 cites·16 claims
- 1081US5365560AMethod and apparatus for acquiring a uniform distribution of radon data sufficiently dense to constitute a complete set for exact image reconstruction of an object irradiated by a cone beam sourceGEN ELECTRIC·Filed 1991·Granted Nov 15, 1994·67 cites·8 claims
- 1180US6324245B1Method and apparatus for identifying and correcting image inaccuracies caused by simplified processing of masked cone beam projection dataSIEMENS CORP RES INC·Filed 2000·Granted Nov 27, 2001·27 cites·13 claims
- 1279US6078638APixel grouping for filtering cone beam detector data during 3D image reconstructionSIEMENS CORP RES INC·Filed 1998·Granted Jun 20, 2000·78 cites·22 claims
- 1379US5881123ASimplified cone beam image reconstruction using 3D backprojectionSIEMENS CORP RES INC·Filed 1998·Granted Mar 9, 1999·70 cites·25 claims
- 1476US6292525B1Use of Hilbert transforms to simplify image reconstruction in a spiral scan cone beam CT imaging systemSIEMENS CORP RES INC·Filed 1999·Granted Sep 18, 2001·45 cites·21 claims
- 1575US6009142APractical cone beam image reconstruction using local regions-of-interestSIEMENS CORP RES INC·Filed 1998·Granted Dec 28, 1999·57 cites·27 claims
- 1673US5053958AMethod to reduce image reconstruction time in limited-angle ct systems including using initial reconstruction valves for measured projection data during each iterationGEN ELECTRIC·Filed 1988·Granted Oct 1, 1991·47 cites·4 claims
- 1773US4866614AUltrasound characterization of 3-dimensional flawsGEN ELECTRIC·Filed 1988·Granted Sep 12, 1989·47 cites·4 claims
- 1872US5926521AExact region of interest cone beam imaging using 3D backprojectionSIEMENS CORP RES INC·Filed 1998·Granted Jul 20, 1999·52 cites·24 claims
- 1972US5333164AMethod and apparatus for acquiring and processing only a necessary volume of radon data consistent with the overall shape of the object for efficient three dimensional image reconstructionGEN ELECTRIC·Filed 1991·Granted Jul 26, 1994·44 cites·11 claims
- 2071US5901196AReduction of hitlist size in spiral cone beam CT by use of local radon originsSIEMENS CORP RES INC·Filed 1997·Granted May 4, 1999·34 cites·30 claims
- 2171US5390226AMethod and apparatus for pre-processing cone beam projection data for exact three dimensional computer tomographic image reconstruction of a portion of an objectGEN ELECTRIC·Filed 1992·Granted Feb 14, 1995·42 cites·8 claims
- 2270US5805659AMethod and apparatus for spiral scan region of interest imagingSIEMENS CORP RES INC·Filed 1996·Granted Sep 8, 1998·34 cites·17 claims
- 2369US5960055AFast cone beam image reconstruction using a detector weight listSIEMENS CORP RES INC·Filed 1997·Granted Sep 28, 1999·45 cites·10 claims
- 2468US5862198APre-calculated hitlist for reducing run-time processing of an exact cone beam reconstruction algorithmSIEMENS CORP RES INC·Filed 1997·Granted Jan 19, 1999·35 cites·25 claims
- 2567US6330298B1Method and apparatus for simplifying the correction of image inaccuracies caused by processing of masked cone beam projection dataSIEMENS CORP RES INC·Filed 2000·Granted Dec 11, 2001·13 cites·3 claims
- 2667US5390111AMethod and system for processing cone beam data for reconstructing free of boundary-induced artifacts a three dimensional computerized tomography imageGEN ELECTRIC·Filed 1993·Granted Feb 14, 1995·34 cites·18 claims
- 2765US5461650AMethod and system for pre-processing cone beam data for reconstructing free of interpolation-induced artifacts a three dimensional computerized tomography imageGEN ELECTRIC·Filed 1993·Granted Oct 24, 1995·32 cites·22 claims
- 2865US5341460AMethod and apparatus for producing a three-dimensional computerized tomography image of an object with improved conversion of cone beam data to radon dataGEN ELECTRIC·Filed 1993·Granted Aug 23, 1994·32 cites·18 claims
- 2962US6084937AAdaptive mask boundary correction in a cone beam imaging systemSIEMENS CORP RES INC·Filed 1998·Granted Jul 4, 2000·33 cites·34 claims
- 3062US5319693AThree dimensional computerized tomography scanning configuration for imaging large objects with smaller area detectorsGEN ELECTRIC·Filed 1992·Granted Jun 7, 1994·96 cites·19 claims
- 3160US5390112AThree-dimensional computerized tomography scanning method and system for imaging large objects with smaller area detectorsGEN ELECTRIC·Filed 1993·Granted Feb 14, 1995·87 cites·30 claims
- 3259US5970111AFast and efficient multiprocessor implementation for exact for an exact cone beam image reconstructionSIEMENS CORP RES INC·Filed 1998·Granted Oct 19, 1999·23 cites·7 claims
- 3358US5187659ACone beam scanning trajectories for three-dimensional computerized tomography data acquisition where object is larger than the field of viewGEN ELECTRIC·Filed 1990·Granted Feb 16, 1993·77 cites·11 claims
- 3457US5717732ACT imaging system with independently movable multi-resolution detectorGEN ELECTRIC·Filed 1995·Granted Feb 10, 1998·19 cites·12 claims
- 3556US6763081B2Cone beam computed tomography imaging system and method providing efficient utilization of detector areaSIEMENS CORP RES INC·Filed 2002·Granted Jul 13, 2004·6 cites·12 claims
- 3656US4888693AMethod to obtain object boundary information in limited-angle computerized tomographyGEN ELECTRIC·Filed 1987·Granted Dec 19, 1989·47 cites·5 claims
- 3753US5748697AMethod and apparatus for eliminating boundary errors in cone beam imagingSIEMENS CORP RES INC·Filed 1996·Granted May 5, 1998·22 cites·29 claims
- 3852US6130930AExact region of interest cone beam imaging without circle scansSIEMENS CORP RES INC·Filed 1999·Granted Oct 10, 2000·63 cites·19 claims
- 3951US5383119AMethod and apparatus for acquiring complete radon data for exactly reconstructing a three dimensional computerized tomography image of a portion of an object irradiated by a cone beam sourceGEN ELECTRIC·Filed 1991·Granted Jan 17, 1995·18 cites·16 claims
- 4049US5815546AComputed tomography apparatus for conducting spiral scan with the x-ray detector tilted relative to the system axisSIEMENS AG·Filed 1997·Granted Sep 29, 1998·13 cites·3 claims
- 4149US5461651AReconstruction of images in cone beam scanning with rectangular detector elementsGEN ELECTRIC·Filed 1993·Granted Oct 24, 1995·12 cites·26 claims
- 4248US7257186B2Imaging method for a multi-slice spiral CT scan, and a computer tomography unit for carrying out this methodSIEMENS AG·Filed 2003·Granted Aug 14, 2007·2 cites·16 claims
- 4348US6018561AMask boundary correction in a cone beam imaging system using simplified filtered backprojection image reconstructionSIEMENS CORP RES INC·Filed 1998·Granted Jan 25, 2000·48 cites·24 claims
- 4448US5446776ATomography with generation of radon data on polar grid pointsGEN ELECTRIC·Filed 1993·Granted Aug 29, 1995·16 cites·15 claims
- 4547US6233303B1Method and apparatus for reducing X-ray dosage in a spiral scan cone beam CT imaging systemSIEMENS CORP RES INC·Filed 1999·Granted May 15, 2001·44 cites·16 claims
- 4642US5463721AMethod for constructing a three dimensional scanning trajectory capable of acquiring a complete set of radon data for exact image reconstruction of an object irradiated by a cone beam sourceGEN ELECTRIC·Filed 1991·Granted Oct 31, 1995·11 cites·8 claims
- 4740US5465283AMethod and apparatus for generating radon derivative data on a near uniformly space grid in a cone beam computerized tomography implementationGEN ELECTRIC·Filed 1994·Granted Nov 7, 1995·9 cites·16 claims
- 4839US5901195ATwo-step radon inversion processing for φ-planes having local radon originsSIEMENS CORP RES INC·Filed 1997·Granted May 4, 1999·9 cites·7 claims
- 4939US5504792AMethod and system for masking cone beam projection data generated from either a region of interest helical scan or a helical scanGEN ELECTRIC·Filed 1994·Granted Apr 2, 1996·23 cites·25 claims
- 5039US4922421AFlaw characterization by multiple angle inspectionGEN ELECTRIC·Filed 1988·Granted May 1, 1990·10 cites·3 claims
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