[1] Wang W F, Ma Z F, Li Z X et al. Consolidating of detached murals through grouting techniques[J]. Sciences of Conservation and Archaeology, 18, 52-59(2006).

[2] Li Z X[J]. Current situation and tasks of Dunhuang Grottoes protection Dunhuang Research, 2000, 10-23.

[3] Candoré J C, Bodnar J L, Depasse F et al. Approach of the characterization of delamination in mural paintings. [C]//Proceedings of the 2008 International Conference on Quantitative InfraRed Thermography, July 2-5, 2008, Krakow Poland. Krakow: QIRT Council, 1-2(2008).

[4] Wang X D[J]. Exploration and practice of the methodology for wall painting conservation based upon principles for the conservation of heritage sites in China Dunhuang Research, 2011, 1-7, 125.

[5] Bodnar J L, Candoré J C, Nicolas J L et al. Stimulated infrared thermography applied to help restoring mural paintings[J]. NDT & E International, 49, 40-46(2012).

[6] Collini L, Garziera R, Mangiavacca F. Development, experimental validation and tuning of a contact-less technique for the health monitoring of antique frescoes[J]. NDT & E International, 44, 152-157(2011).

[7] Yang S S, Zhu R, Mi L et al. Application of optical coherence tomography in the detection of the mural[J]. Acta Optica Sinica, 35, 0511005(2015).

[8] Sfarra S, Ibarra-Castanedo C, Tortora M et al. Diagnostics of wall paintings: a smart and reliable approach[J]. Journal of Cultural Heritage, 18, 229-241(2016).

[9] Wang X, Jin W P, Zhang C L et al. Actuality & evolvement of infrared thermal wave nondestructive imaging technology[J]. Nondestructive Testing Technologying, 26, 497-501(2004).

[10] Li X L, Sun J G, Tao N et al. An effective method to inspect adhesive quality of wind turbine blades using transmission thermography[J]. Journal of Nondestructive Evaluation, 37, 1-11(2018).

[11] Kylili A, Fokaides P A, Christou P et al. Infrared thermography (IRT) applications for building diagnostics: a review[J]. Applied Energy, 134, 531-549(2014).

[12] Li X L, Tao N, Sun J G et al. Evaluation of an ancient cast-iron Buddha head by step-heating infrared thermography[J]. Infrared Physics & Technology, 98, 223-229(2019).

[13] Shi N C, Wang X, Zhang C L[J]. The application of infrared thermal wave imaging technology in conservation Journal of National Museum of China, 2017, 149-157.

[14] Kordatos E Z, Exarchos D A, Stavrakos C et al. Infrared thermographic inspection of murals and characterization of degradation in historic monuments[J]. Construction and Building Materials, 48, 1261-1265(2013).

[15] Grinzato E, Bison P, Marinetti S et al. Nondestructive evaluation of delaminations in fresco plaster using transient infrared thermography[J]. Research in Nondestructive Evaluation, 5, 257-274(1994).

[16] Zhang Y J, Wang X D, Guo Q L et al[J]. Preliminary application of infrared imaging technology in detecting grouting on delaminated wall-painting of cave 98 Mogao Grottoes Dunhuang Research, 2010, 82-87.

[17] Tao N, Lei Y, Qu L et al. Square-heating thermography for quantitative 3D evaluation of large ancient murals[J]. Journal of Nondestructive Evaluation, 39, 1-11(2020).

[18] Sfarra S, Ibarra-Castanedo C, Ambrosini D et al. Non-destructive testing techniques to help the restoration of frescoes[J]. Arabian Journal for Science and Engineering, 39, 3461-3480(2014).

[19] Theodorakeas P, Ibarra-Castanedo C, Sfarra S et al. NDT inspection of plastered mosaics by means of transient thermography and holographic interferometry[J]. NDT & E International, 47, 150-156(2012).

[20] Carslow H S, Jaeger J C, Morral J E. Conduction of heat in solids, second edition[J]. Journal of Engineering Materials and Technology, 108, 378(1986).

[22] Sun J G. Quantitative three-dimensional imaging of heterogeneous materials by thermal tomography[J]. Journal of Heat Transfer, 138, 112004(2016).

[23] Arndt R W. Square pulse thermography in frequency domain as adaptation of pulsed phase thermography for qualitative and quantitative applications in cultural heritage and civil engineering[J]. Infrared Physics & Technology, 53, 246-253(2010).

[24] Maldague X, Marinetti S. Pulse phase infrared thermography[J]. Journal of Applied Physics, 79, 2694-2698(1996).

[25] Rajic N. Principal component thermography for flaw contrast enhancement and flaw depth characterisation in composite structures[J]. Composite Structures, 58, 521-528(2002).

[26] [J]. Shaanxi provincial institute of archaeology. A brief report of the Yuan tomb at donger, Pucheng Archaeology and Cultural Relics, 2000, 16-21, 48.