António Pereira, A. Candeias, A. Cardoso, J. Mirão, A. T. Caldeira
The conservation and preservation of museum collections requires a detailed understanding of their constituent materials which are often natural, synthetic or semi-synthetic polymers. The use of a wide variety of instrumental techniques can give an extraordinary amount of quality information, by delivering complementary data regarding composition and structure. This study was triggered by the Oporto Military Museum (Museu Militar do Porto) conservators who observed that a set of plastic toy soldiers dating back to the middle of the 20th century from the museum exhibition started to present severe and accelerated degradation process. With this is mind, the authors envisaged a methodology for the characterisation of these soldier toys that compromised elemental, structural and morphologic analysis, to allow the identification of polymers, their additives, and the degradation products. The methodology comprised stereoscopic microscopy and VP-SEM-EDS to recognize the micromorphology, ATR-FTIR to identify the polymer, 1H and 13C NMR to identify their additives, and micro-XRD to identify degradation products with a crystal structure. With this complementary analytical approach the composition of the toy soldiers was identified as being made of cellulose acetate plastic with triphenyl phosphate and dimethyl phthalate as major additives, and crystallyne efflorescence of triphenyl phosphate were identified as a degradation product. This methodology shows to be very adequate for a detailed characterization of plastic artefacts in museum environments.
博物馆藏品的保护和保存需要详细了解其组成材料，这些材料通常是天然、合成或半合成聚合物。通过提供有关成分和结构的补充数据，使用各种仪器技术可以提供大量高质量的信息。这项研究是由波尔图军事博物馆（Museu Militar do Porto）的管理员发起的，他们观察到博物馆展览中的一套可追溯到20世纪中期的塑料玩具士兵开始呈现严重且加速的退化过程。考虑到这一点，作者设想了一种对这些士兵玩具进行表征的方法，该方法损害了元素、结构和形态分析，从而能够识别聚合物、其添加剂和降解产物。该方法包括立体显微镜和VP-SEM-EDS来识别微观形态，ATR-FTIR来识别聚合物，1H和13C NMR来识别其添加剂，以及微XRD来识别具有晶体结构的降解产物。通过这种补充分析方法，玩具士兵的成分被确定为由醋酸纤维素塑料制成，磷酸三苯酯和邻苯二甲酸二甲酯是主要添加剂，磷酸三苯基酯的结晶风化被确定为降解产物。这种方法被证明非常适合在博物馆环境中对塑料制品进行详细的表征。
{"title":"Plastic toy soldiers, a lost battle? – an analytical perspective","authors":"António Pereira, A. Candeias, A. Cardoso, J. Mirão, A. T. Caldeira","doi":"10.14568/cp2020002","DOIUrl":"https://doi.org/10.14568/cp2020002","url":null,"abstract":"The conservation and preservation of museum collections requires a detailed understanding of their constituent materials which are often natural, synthetic or semi-synthetic polymers. The use of a wide variety of instrumental techniques can give an extraordinary amount of quality information, by delivering complementary data regarding composition and structure.\u0000\u0000This study was triggered by the Oporto Military Museum (Museu Militar do Porto) conservators who observed that a set of plastic toy soldiers dating back to the middle of the 20th century from the museum exhibition started to present severe and accelerated degradation process.\u0000\u0000With this is mind, the authors envisaged a methodology for the characterisation of these soldier toys that compromised elemental, structural and morphologic analysis, to allow the identification of polymers, their additives, and the degradation products. The methodology comprised stereoscopic microscopy and VP-SEM-EDS to recognize the micromorphology, ATR-FTIR to identify the polymer, 1H and 13C NMR to identify their additives, and micro-XRD to identify degradation products with a crystal structure.\u0000\u0000With this complementary analytical approach the composition of the toy soldiers was identified as being made of cellulose acetate plastic with triphenyl phosphate and dimethyl phthalate as major additives, and crystallyne efflorescence of triphenyl phosphate were identified as a degradation product. This methodology shows to be very adequate for a detailed characterization of plastic artefacts in museum environments.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49227287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The objects and their functions are configured depending on how they will be used, assuming they can be used as archives’ tools, material culture inputs, generators of memories or simply perform the function for which they were designed. Thus, it becomes necessary to discuss the functions of museum objects and culture. To this end, the relations created between the items exhibited and the exhibition design in the process of memory elaborating will be identified, considering that both are inserted in an institutional space configured as Theater of Memory. The argument is supported by concepts from Hooper-Greenhill, Meneses and Ramos. As a case study, the exhibition Renato Russo, from the Museu da Imagem e do Som of São Paulo, was elected, including the description of the chosen objects and the dynamics created between the exhibition space, the objects and the visitor.
{"title":"The relationship between design, object and memory: the Renato Russo exhibition","authors":"Alceu Silva Neto, P. Arantes","doi":"10.14568/cp2020038","DOIUrl":"https://doi.org/10.14568/cp2020038","url":null,"abstract":"The objects and their functions are configured depending on how they will be used, assuming they can be used as archives’ tools, material culture inputs, generators of memories or simply perform the function for which they were designed. Thus, it becomes necessary to discuss the functions of museum objects and culture. To this end, the relations created between the items exhibited and the exhibition design in the process of memory elaborating will be identified, considering that both are inserted in an institutional space configured as Theater of Memory. The argument is supported by concepts from Hooper-Greenhill, Meneses and Ramos. As a case study, the exhibition Renato Russo, from the Museu da Imagem e do Som of São Paulo, was elected, including the description of the chosen objects and the dynamics created between the exhibition space, the objects and the visitor.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45515731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Varnishes consist basically of a resin and solvent. Aromatic solvents are widely used for varnish formulations, but they present considerable toxicity which requires their replacement. Two binary solvent systems with an oxygenated solvent (ethyl acetate or isoamyl acetate) and cyclohexane were studied as possible substitutes for xylene in varnish formulations. The toxicity of solvents was analyzed using data from the Globally Harmonized System of Classification and Labeling of Chemicals and the National Institute for Occupational Safety and Health. The solubility of Damar, Paraloid B72, Regalrez 1094, and Laropal K80 resins in these solvents was evaluated by Hansen and Teas Solubility Parameters, sigma profiles, and experimental method. Vapor pressure measurements were obtained from solvents and viscosity and gloss measurements from varnish formulations. The results indicated the potential of binary solvent systems as substitutes for xylene, but require further studies on their effects on pictorial materials on which they are applied.
{"title":"Low Toxicity Solvent Compositions for Varnishes Formulations for Use in Art Conservation","authors":"Mariah Boelsums, J. C. D. F. Júnior, L. A. Souza","doi":"10.14568/cp2020041","DOIUrl":"https://doi.org/10.14568/cp2020041","url":null,"abstract":"Varnishes consist basically of a resin and solvent. Aromatic solvents are widely used for varnish formulations, but they present considerable toxicity which requires their replacement. Two binary solvent systems with an oxygenated solvent (ethyl acetate or isoamyl acetate) and cyclohexane were studied as possible substitutes for xylene in varnish formulations. The toxicity of solvents was analyzed using data from the Globally Harmonized System of Classification and Labeling of Chemicals and the National Institute for Occupational Safety and Health. The solubility of Damar, Paraloid B72, Regalrez 1094, and Laropal K80 resins in these solvents was evaluated by Hansen and Teas Solubility Parameters, sigma profiles, and experimental method. Vapor pressure measurements were obtained from solvents and viscosity and gloss measurements from varnish formulations. The results indicated the potential of binary solvent systems as substitutes for xylene, but require further studies on their effects on pictorial materials on which they are applied.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41361004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
André Alexandre Gasperi, Raquel Franca Garcia Augustin
A esfera do conhecimento engloba gradações complexas. A evolução delas diferenciase de acordo com a aproximação e relações entre as disciplinas. A transdisciplinaridade resulta do processo interdisciplinar, cujas relações são profundas e cooperativas. Levando isso em consideração e o fato de que o Brasil não possui mestrados e doutorados em Conservação e Restauração de Bens Culturais Móveis, esta pesquisa almejou levantar os programas de pós-graduação que acolheram projetos na área da conservação e restauração no Brasil de forma interdisciplinar. Para tanto, listou-se as áreas do conhecimento que apresentavam fortes relações com a área partindo do conteúdo das matrizes curriculares dos cursos dessa graduação existentes no país. Depois, foi realizada uma busca no Catálogo de Teses e Dissertações da CAPES, filtrando-se os resultados com as disciplinas elencadas previamente. Tal estudo permitiu identificar programas e instituições que desenvolveram projetos na área da conservação e restauração, trazendo diálogos transdisciplinares ao campo da preservação.
{"title":"Transdisciplinarity of preservation: postgraduate programs associated with conservation and restoration in the Brazilian context","authors":"André Alexandre Gasperi, Raquel Franca Garcia Augustin","doi":"10.14568/cp2019047","DOIUrl":"https://doi.org/10.14568/cp2019047","url":null,"abstract":"A esfera do conhecimento engloba gradações complexas. A evolução delas diferenciase de acordo com a aproximação e relações entre as disciplinas. A transdisciplinaridade resulta do processo interdisciplinar, cujas relações são profundas e cooperativas. Levando isso em consideração e o fato de que o Brasil não possui mestrados e doutorados em Conservação e Restauração de Bens Culturais Móveis, esta pesquisa almejou levantar os programas de pós-graduação que acolheram projetos na área da conservação e restauração no Brasil de forma interdisciplinar. Para tanto, listou-se as áreas do conhecimento que apresentavam fortes relações com a área partindo do conteúdo das matrizes curriculares dos cursos dessa graduação existentes no país. Depois, foi realizada uma busca no Catálogo de Teses e Dissertações da CAPES, filtrando-se os resultados com as disciplinas elencadas previamente. Tal estudo permitiu identificar programas e instituições que desenvolveram projetos na área da conservação e restauração, trazendo diálogos transdisciplinares ao campo da preservação.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44791647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Elin Figueiredo, T. Ferreira, A. Claro, A. Miller, S. Sequeira
A year has passed since the new editorial and direction board assumed the direction of the journal [1]. We would like to highlight some changes that have been implemented, particularly those involving the image and management of Conservar Património, remarking that some changes are still under development.
{"title":"Editorial: Recent developments with a view to the future","authors":"Elin Figueiredo, T. Ferreira, A. Claro, A. Miller, S. Sequeira","doi":"10.14568/cp35fm2","DOIUrl":"https://doi.org/10.14568/cp35fm2","url":null,"abstract":"A year has passed since the new editorial and direction board assumed the direction of the journal [1]. We would like to highlight some changes that have been implemented, particularly those involving the image and management of Conservar Património, remarking that some changes are still under development.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":"35 1","pages":"8-9"},"PeriodicalIF":0.3,"publicationDate":"2020-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46333680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article is the result of an investigation about the Bullring of Campo Pequeno, which was inaugurated in 1892, being today one of the most emblematic buildings of the city of Lisbon. Although the history of this building has already been approached by other authors, this is a theme that worth is to be developed from the point of view of the history of art and the history of the nineteenth century, both from the point of view of the analysis of the revivalist architecture of the building, either from the point of view of its integration into a Lisbon area that was then being planned, the Avenidas Novas. In addition, the relevance of this building should be emphasized, in particular since it has few contemporary parallels, both at national and international level; and also, because its construction with brick and iron was an element of modernity that must be underlined. Furthermore, this study is a contribution to the field of Olisipography, which is specialised study in Lisbon's history.
{"title":"The Campo Pequeno Bullring in Lisbon’s Avenidas Novas","authors":"Raquel Henriques da Silva, M. Elias","doi":"10.14568/cp2020005","DOIUrl":"https://doi.org/10.14568/cp2020005","url":null,"abstract":"This article is the result of an investigation about the Bullring of Campo Pequeno, which was inaugurated in 1892, being today one of the most emblematic buildings of the city of Lisbon. Although the history of this building has already been approached by other authors, this is a theme that worth is to be developed from the point of view of the history of art and the history of the nineteenth century, both from the point of view of the analysis of the revivalist architecture of the building, either from the point of view of its integration into a Lisbon area that was then being planned, the Avenidas Novas. In addition, the relevance of this building should be emphasized, in particular since it has few contemporary parallels, both at national and international level; and also, because its construction with brick and iron was an element of modernity that must be underlined. Furthermore, this study is a contribution to the field of Olisipography, which is specialised study in Lisbon's history.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43146313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Earth as a building material has been gaining a renewed interest due to current environmental and eco-efficiency concerns. Indeed, earth is an ecological and economically efficient material that can also contribute to increase indoor comfort. However, earth mortars have a limitation: their susceptibility to water. In order to implement a more comprehensive use in indoor and outdoor environments, where there may be contact with water, the inclusion of stabilizing agents has been studied. This article presents a critical literature review of the effect of the most common stabilizers used in earth mortars, specifically: vegetable fibres; binders such as calcium sulfates, air limes and limes with hydraulic properties, cement; and oils. It appears that some of these stabilizers seem to improve the earth mortars resistance to liquid water. However, in most cases, this improvement occurs at the expense of other important properties, which are also discussed.
{"title":"Earth mortars stabilization: A review","authors":"Inês Carreira, I. P. Cardoso, Paulina Faria","doi":"10.14568/cp2019043","DOIUrl":"https://doi.org/10.14568/cp2019043","url":null,"abstract":"Earth as a building material has been gaining a renewed interest due to current environmental and eco-efficiency concerns. Indeed, earth is an ecological and economically efficient material that can also contribute to increase indoor comfort.\u0000\u0000However, earth mortars have a limitation: their susceptibility to water. In order to implement a more comprehensive use in indoor and outdoor environments, where there may be contact with water, the inclusion of stabilizing agents has been studied. This article presents a critical literature review of the effect of the most common stabilizers used in earth mortars, specifically: vegetable fibres; binders such as calcium sulfates, air limes and limes with hydraulic properties, cement; and oils. It appears that some of these stabilizers seem to improve the earth mortars resistance to liquid water. However, in most cases, this improvement occurs at the expense of other important properties, which are also discussed.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42637629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. C. D. da Costa, E. M. Zanatta, F. Corrêa, Renata Nascimento Cardoso, Ana Lucia Chaves de Oliveira, M. Lutterbach
The Museu Imperial has an important historical collection from the Portuguese Royal Family in Brazil. The throne represents the imperial power and is considered one of the most important objects in the museum; however, the piece has been facing for decades a gradual deterioration, mainly in its fabrics. With the growing motivation to preserve this property, conservation and restoration processes were conducted in all parts of the throne. As a part of this treatment, a microbiological survey was conducted in selected parts of the object and the surrounding environment where it was placed. This biodeterioration study, control and detection of microbial species indicated a very pertinent answer in relation to the place it was exposed, and the restoration process was performed in order to solve the most pronounced damages aiming to restore the original characteristics of the artefact. The study indicated a high diversity of fungi and bacteria. It was observed a marked decrease, before and after restoration, being observed the recurrence of the genera Absidia, Cladosporium and Epicoccum. This reduction was not so pronounced for bacteria, being also observed the recurrence of some bacterial groups after restoration (Microbacterium, Staphylococcus and Kocuria). In the atmosphere new fungal species were found after restoration, indicating a natural recontamination of the exhibition area.
{"title":"Microbial diversity in the surroundings and selected parts of the imperial throne of D. Pedro II - Characterization by classical microbiology and molecular biology, before and after restoration interventions","authors":"A. C. D. da Costa, E. M. Zanatta, F. Corrêa, Renata Nascimento Cardoso, Ana Lucia Chaves de Oliveira, M. Lutterbach","doi":"10.14568/cp2019020","DOIUrl":"https://doi.org/10.14568/cp2019020","url":null,"abstract":"The Museu Imperial has an important historical collection from the Portuguese Royal Family in Brazil. The throne represents the imperial power and is considered one of the most important objects in the museum; however, the piece has been facing for decades a gradual deterioration, mainly in its fabrics. With the growing motivation to preserve this property, conservation and restoration processes were conducted in all parts of the throne. As a part of this treatment, a microbiological survey was conducted in selected parts of the object and the surrounding environment where it was placed. This biodeterioration study, control and detection of microbial species indicated a very pertinent answer in relation to the place it was exposed, and the restoration process was performed in order to solve the most pronounced damages aiming to restore the original characteristics of the artefact. The study indicated a high diversity of fungi and bacteria. It was observed a marked decrease, before and after restoration, being observed the recurrence of the genera Absidia, Cladosporium and Epicoccum. This reduction was not so pronounced for bacteria, being also observed the recurrence of some bacterial groups after restoration (Microbacterium, Staphylococcus and Kocuria). In the atmosphere new fungal species were found after restoration, indicating a natural recontamination of the exhibition area.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49436168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
After Edson Motta’s graduation from the Fogg Conservation Center, his experience contributed to the practice of conservation in Brazil through the introduction of new materials and the technique of wax-resin lining. However, this technique has drawbacks when applied in a country of tropical climate and few resources. It is important, when considering the use of this approach, to be mindful of the conservator’s historical role, which can reveal why this technique was, very likely, the best choice for the conservation of the vast patrimony of canvas paintings in Brazil.
{"title":"Wax resin lining techniques: Edson Motta’s training at the Fogg Conservation Center and its adaptation to the Brazilian reality","authors":"M. Paiva, Marian Aguiar, E. Vieira","doi":"10.14568/cp2019015","DOIUrl":"https://doi.org/10.14568/cp2019015","url":null,"abstract":"After Edson Motta’s graduation from the Fogg Conservation Center, his experience contributed to the practice of conservation in Brazil through the introduction of new materials and the technique of wax-resin lining. However, this technique has drawbacks when applied in a country of tropical climate and few resources. It is important, when considering the use of this approach, to be mindful of the conservator’s historical role, which can reveal why this technique was, very likely, the best choice for the conservation of the vast patrimony of canvas paintings in Brazil.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49292713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The objective of this work is to present a new practical approach to digital photogrammetry in artistic diagnosis and virtual restoration. The study has been applied to an anatomical model of polychrome wax, dated from the 18th century. In the photographic record, the combination of light sources (visible and ultraviolet) has been used to obtain 3D models that serve as documentation tools to accurately map the state of conservation and to project the virtual restoration. The stages of the photogrammetric process are described along with the lighting strategy and colour management used to solve the problem of virtual registration on surfaces of objects with very bright finishes. The results obtained are promising, because they make it possible to obtain a 3D model with optimal record of the morphology of the sculpture to project virtual solutions within the decision-making model.
{"title":"Application of light sources on photogrammetric models for the diagnosis and virtual restoration of objects in polychrome wax","authors":"Emanuel Sterp Moga, Óscar Hernández-Muñoz, Alicia Sánchez-Ortiz","doi":"10.14568/cp2020021","DOIUrl":"https://doi.org/10.14568/cp2020021","url":null,"abstract":"The objective of this work is to present a new practical approach to digital photogrammetry in artistic diagnosis and virtual restoration. The study has been applied to an anatomical model of polychrome wax, dated from the 18th century. In the photographic record, the combination of light sources (visible and ultraviolet) has been used to obtain 3D models that serve as documentation tools to accurately map the state of conservation and to project the virtual restoration. The stages of the photogrammetric process are described along with the lighting strategy and colour management used to solve the problem of virtual registration on surfaces of objects with very bright finishes. The results obtained are promising, because they make it possible to obtain a 3D model with optimal record of the morphology of the sculpture to project virtual solutions within the decision-making model.","PeriodicalId":55942,"journal":{"name":"Conservar Patrimonio","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48777985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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