Abstract
The following problem arises in thermoacoustic tomography and has intimate connection with PDEs and integral geometry. Reconstruct a function f supported in an n-dimensional ball B given the spherical means of f over all geodesic spheres centered on the boundary of B. We propose a new approach to this problem, which yields explicit reconstruction formulas in arbitrary constant curvature space, including euclidean space ℝn, the n-dimensional sphere, and hyperbolic space. The main idea is analytic continuation of the corresponding operator families. The results are applied to inverse problems for a large class of Euler-Poisson-Darboux equations in constant curvature spaces of arbitrary dimension.
Similar content being viewed by others
References
M. Agranovsky, D. Finch, and P. Kuchment, Range conditions for a spherical mean transform, Inverse Probl. Imaging 3 (2009), 373–382.
M. Agranovsky, P. Kuchment, and L. Kunyansky, On reconstruction formulas and algorithms for the thermoacoustic tomography, in Photoacoustic Imaging and Spectroscopy, CRC Press, 2009, pp. 89–102.
M. Agranovsky, P. Kuchment, and E. T. Quinto, Range descriptions for the spherical mean Radon transform, J. Funct. Anal. 248 (2007), 344–386.
M. Agranovsky and E. T. Quinto, Injectivity of the spherical mean operator and related problems, in Complex Analysis, Harmonic Analysis and Applications, Longman, Harlow, 1996, pp. 12–36.
M. Agranovsky, and E. T. Quinto, Injectivity sets for the Radon transform over circles and complete systems of radial functions, J. Funct. Anal. 139 (1996), 383–414.
G. Ambartsoumian and P. Kuchment, A range description for the planar circular Radon transform, SIAM J. Math. Anal. 38 (2006), 681–692.
Y. A. Antipov and B. Rubin, A generalization of the Mader-Helgason inversion formulas for Radon transforms, Trans. Amer. Math. Soc. 364 (2012), 6479–6493.
D. W. Bresters, On a generalized Euler-Poisson-Darboux equation, SIAM J. Math. Anal. 9 (1978), 924–934.
R. W. Carroll, Singular Cauchy problems in symmetric spaces, J. Math. Anal. Appl. 56 (1976), 41–54.
R. W. Carroll and R. E. Showalter, Singular and Degenerate Cauchy Problems, Academic Press, New York, NY, 1976.
R. Courant and D. Hilbert, Methods of Mathematical Physics, Vol. 2, Interscience Publishers, New York, NY, 1989.
S. R. Deans, The Radon Transform and Some of its Applications, Reprint of the 1983 edition, Dover Publications, Inc., Mineola, New York, 2007.
L. Ehrenpreis, The Universality of the Radon Transform, with an appendix by Peter Kuchment and Eric Todd Quinto, Oxford University Press, New York, 2003.
C. L. Epstein, Introduction to the Mathematics of Medical Imaging, 2nd edition, SIAM, Phildelphia, PA, 2008.
C. L. Epstein and B. Kleiner, Spherical means in annular regions, Comm. Pure Appl. Math. 46 (1993), 441–451.
A. Erdélyi, W. Magnus, F, Oberhettinger, and F. G. Tricomi, Higher Transcendental Functions, Vols. I and II, McGraw-Hill, New York, 1953.
R. Estrada and R. P. Kanwal, Singular Integral Equations, Birkhäuser, Boston, 2000.
F. Filbir, R. Hielscher, and W. R. Madych, Reconstruction from circular and spherical mean data, Appl. Comput. Harmon. Anal. 29 (2010), 111–120.
D. Finch, M. Haltmeier, and Rakesh, Inversion of spherical means and the wave equation in even dimensions, SIAM J. Appl. Math. 68 (2007), 392–412.
D. Finch, S. K. Patch, and Rakesh, Determining a function from its mean values over a family of spheres, SIAM J. Math. Anal. 35 (2004), 1213–1240.
D. Finch, and Rakesh, The range of the spherical mean value operator for functions supported in a ball, Inverse Problems 22 (2006), 923–938.
D. Finch, and Rakesh, The spherical mean value operator with centers on a sphere, Inverse Problems 23 (2007), S37–S49.
D. Finch, and Rakesh, Recovering a function from its spherical mean values in two and three dimensions, in Photoacoustic Imaging and Spectroscopy, CRC Press, 2009, pp. 77–88.
B. A. Fusaro, A correspondence principle for the Euler-Poisson-Darboux (EPD) equation in harmonic space, Glasnik Matem. Ser. III 1(21) (1966), 99–101.
F. D. Gakhov, Boundary Value Problems, Dover Publications, 1990.
I. M. Gel’fand, S. G. Gindikin, and M. I. Graev, Selected Topics in Integral Geometry, Amer. Math. Soc. Providence, RI, 2003.
I. M. Gel’fand and G. E. Shilov, Generalized Functions, 1. Properties and Operations, Academic Press, New York-London, 1964.
S. Gindikin, Integral geometry on real quadrics, in Lie Groups and Lie Algebras: E. B. Dynkin’s Seminar, Amer. Math. Soc. Transl. Ser. 2, 169, Amer. Math. Soc., Providence, RI, 1995, pp. 23–31.
S. Gindikin, J. Reeds, and L. Shepp, Spherical tomography and spherical integral geometry, in Tomography, Impedance Imaging, and Integral Geometry, Amer. Math. Soc. Providence, RI, 1994, pp. 83–92.
S. Helgason, Integral Geometry and Radon Transforms, Springer, New York, 2011.
Y. Hristova, P. Kuchment, and L. Nguyen, Reconstruction and time reversal in thermoacoustic tomography in acoustically homogeneous and inhomogeneous media, Inverse Problems 24 (2008), no. 5, 055006, 25 pp.
F. John, Plane Waves and Spherical Means Applied to Partial Differential Equations, reprint of the 1955 original, Dover Publications, Mineola, NY, 2004.
I. A. Kipriyanov and L. A. Ivanov, Euler-Poisson-Darboux equations in Riemannian space, Dokl. Akad. Nauk SSSR 260 (1981), 790–794.
I. A. Kipriyanov and L. A. Ivanov, The Cauchy problem for the Euler-Poisson-Darboux equation in a homogeneous symmetric Riemannian space. I, Proc. Steklov Inst. Math. 1 (1987), 159–168.
R. A. Kruger, P. Liu, Y. R. Fang, and C. R. Appledorn, Photoacoustic ultrasound (PAUS)-reconstruction tomography, Med. Phys. 22 (1995), 1605–1609.
P. Kuchment, Generalized transforms of Radon type and their applications, in The Radon Transform, Inverse Problems, and Tomography, Amer. Math. Soc., Providence, RI, 2006, pp. 67–91.
P. Kuchment and L. Kunyansky, Mathematics of thermoacoustic tomography, European J. Appl. Math. 19 (2008), 191–224.
P. Kuchment, and E. T. Quinto, Some problems of integral geometry arising in tomography, in The Universality of the Radon Transform, Oxford University Press, New York, 2003, Chapter XI.
L. Kunyansky, Explicit inversion formulae for the spherical mean Radon transform, Inverse Problems 23 (2007), 373–383.
L. Kunyansky, Reconstruction of a function from its spherical (circular) means with the centers lying on the surface of certain polygons and polyhedra Inverse Problems 27 (2011), 025012.
P. D. Lax and R. S. Phillips, An example of Huygens’ principle, Comm. Pure Appl. Math. 31 (1978), 415–421.
J. S. Lowndes, A generalisation of the Erdélyi-Kober operators, Proc. Edinburgh Math. Soc. (2) 17 (1970/1971), 139–148.
J. S. Lowndes, On some generalisations of the Riemann-Liouville and Weyl fractional integrals and their applications, Glasgow Math. J. 22 (1981), 173–180.
F. Natterer, The Mathematics of Computerized Tomography, Wiley, New York, 1986.
E. K. Narayanan and Rakesh, Spherical means with centers on a hyperplane in even dimensions, Inverse Problems 26 (2010), no. 3, 035014, 12 pp.
L. V. Nguyen, A family of inversion formulas in thermoacoustic tomography, Inverse Probl. Imaging, 3 (2009), 649–675.
L. V. Nguyen, Range description for a spherical mean transform on spaces of constant curvatures, arXiv:1107.1746v2.
M. N. Olevskii, Quelques théorems de la moyenne dans les espaces `a courbure constante, C. R. (Dokl.) Acad Sci URSS 45 (1944), 95–98.
M. N. Olevskii, On the equation APu(P, t) = {ie655-1} (A P a linear operator) and the solution of the Cauchy problem for the generalized equation of Euler-Darboux, Dokl. Nauk SSSR (N.S.) 93 (1953), 975–978.
M. N. Olevskii, On a generalization of the Pizetti formula in spaces of constant curvature and some mean-value theorems, Selecta Math. 13 (1994), 247–253.
A. A. Oraevsky and A. A. Karabutov, Optoacoustic tomography, Chapter 34 in Biomedical Photonics Handbook, CRC Press, Boca Raton, Fla, 2003.
V. Palamodov, Reconstructive Integral Geometry, Birkhäuser Verlag, Basel, 2004.
V. Palamodov, Remarks on the general Funk transform and thermoacoustic tomography, Inverse Probl. Imaging 4 (2010), 693–702.
D. A. Popov and D. V. Sushko, Image restoration in optical-acoustic tomography, Problemy Peredachi Informatsii 40 (2004), no. 3, 81–107; translation in Probl. Inf. Transm. 40 (2004), no. 3, 254–278.
D. A. Popov and D. V. Sushko, A parametrix for a problem of optical-acoustic tomography, Dokl. Akad. Nauk 382 (2002), no. 2, 162–164.
A. P. Prudnikov, Y. A. Brychkov, and O. I. Marichev, Integrals and Series: Elementary Functions, Gordon and Breach Sci. Publ., New York-London, 1986.
B. Rubin, Fractional Integrals and Potentials, Longman, Harlow, 1996.
B. Rubin, Generalized Minkowski-Funk transforms and small denominators on the sphere, Fract. Calc. Appl. Anal. 3 (2000), 177–203.
B. Rubin, Inversion formulae for the spherical mean in odd dimensions and the Euler-Poisson-Darboux equation, Inverse Problems 24 (2008) 025021, 10pp.
S. G. Samko, A. A. Kilbas, and O. I. Marichev, Fractional Integrals and Derivatives, Theory and Applications, Gordon and Breach Science Publishers, Yverdon, 1993.
R. K. Srivastava, Coxeter system of lines are sets of injectivity for twisted spherical means on C, arXiv:1103.4571v7 [math. FA].
E. M. Stein, Harmonic Analysis: Real Variable Methods, Orthogonality, and Oscillation Integrals, Princeton Univ. Press, Princeton, NJ, 1993.
R. S. Strichartz, Radon inversion-variations on a theme, Amer. Math. Monthly, 89 (1982), 377–384, 420–423.
E. C. Titchmarsh, Introduction to the Theory of Fourier Integrals, 2nd edition, Clarendon Press, Oxford, 1948.
N. Ja. Vilenkin, A. U. Klimyk, Representation of Lie groups and Special Functions, Vol. 2, Kluwer Acad. Publ., Dordrecht, 1993.
L. Wang, ed., Photoacoustic Imaging and Spectroscopy, CRC Press, 2009.
M. Xu and L. V. Wang, Universal back-projection algorithm for photoacoustic computed tomography, Phys. Rev. E (3) 71 (2005), no. 1, 16706, 7 pages.
L. Zalcman, Offbeat integral geometry, Amer. Math. Monthly 87 (1980), 161–175.
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the NSF grant DMS-0707724.
Supported by the NSF grant PHYS-0968448.
Supported in part by the NSF grant DMS-0556157 and the Louisiana EPSCoR program, and sponsored by NSF, the Board of Regents Support Fund, and the Hebrew University of Jerusalem.
Rights and permissions
About this article
Cite this article
Antipov, Y.A., Estrada, R. & Rubin, B. Method of analytic continuation for the inverse spherical mean transform in constant curvature spaces. JAMA 118, 623–656 (2012). https://doi.org/10.1007/s11854-012-0046-y
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11854-012-0046-y