The Use of 3D-Modeling for Reconstructing the Appearance and Function of Non-Utilitarian Items (the Case of Anthropomorphic Figurines from Tourist-2)

Колобова, К. А.; Fedorchenko, A.Yu.; Basova, N. V.; Postnov, A. V.; Kovalev, V. S.; Chistyakov, Pavel; Молодин, В.И.

doi:10.17746/1563-0102.2019.47.4.066-076

Cited by 2 publications

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“…For the 3D reconstruction of uncalibrated images, the most commonly used method is the motion recovery structure method. is method uses numerical methods to detect and match feature point sets in the image, at the same time, recover the camera motion parameters and scene geometry, and obtain the 3D model of the object [18]. When shooting the target, you can freely move the position of the camera and adjust the focal length of the camera as needed; since there is no need to calibrate the camera parameters in advance, the reconstruction result will not be affected by factors such as inaccurate calibration information or slight changes in camera parameters during the shooting process.…”

Section: Related Workmentioning

confidence: 99%

Sculpture 3D Modeling Method Based on Image Sequence

Liu

2021

Complexity

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This thesis first introduces the basic principles of model-based image sequence coding technology, then discusses in detail the specific steps in various implementation algorithms, and proposes a basic feature point calibration required in three-dimensional motion and structure estimation. This is a simple and effective solution. Aiming at the monocular video image sequence obtained by only one camera, this paper introduces the 3D model of the sculpture building into the pose tracking framework to provide initial depth information. The whole posture tracking framework can be divided into three parts, namely, the construction of the initial sculpture model, the posture tracking between frames, and the robustness processing during continuous tracking. In order to reduce the complexity of calculation, this paper proposes a new three-dimensional mesh model and a moving image restoration algorithm based on this model. At the same time, the influence of the intensity and direction factors in the scene is added, the simulation results are given, and the next step is discussed. The optimization work that needs to be done.

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Section: Related Workmentioning

confidence: 99%

Sculpture 3D Modeling Method Based on Image Sequence

Liu

2021

Complexity

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“…Digital 3-D models of retouchers were created using a RangeVision PRO 5M structured-light scanner. After scanning, models were processed using RangeVisionScanCenter and RangeVisionScanMerge software (Kolobova et al, 2019b). All models were then oriented in one perspective with the active retouching area in the northern or uppermost position.…”

Section: Materials and Methods Of Analysismentioning

confidence: 99%

The application of geometric-morphometric shape analysis to Middle Paleolithic bone retouchers from the Altai Mountains, Russia

Колобова

Rendu

Шалагина

et al. 2020

Quaternary International

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Here, we apply geometric-morphometric shape analysis to Middle Paleolithic bone retouchers from Chagyrskaya Cave in the Altai Mountains of southern Siberia. The cave contains evidence of the easternmost manifestation of the Micoquian industry, associated with Neanderthals at end of MIS4 and the beginning of MIS3. Taphonomic and scar pattern analyses were performed first on random samples exhibiting appropriate characteristics. Several retouchers produced on intentionally modified blanks were identified in our sample, suggesting that some of the Chagyrskaya Cave bone retouchers can be described as formal tools. All retouchers from Chagyrskaya Cave exhibit a similar general morphology. The most variable group is comprised of complete retouchers without blank modifications. Retouchers exhibiting minor damage affect the general pattern of variability and it is not possible to identify them only by means of geometric-morphometric shape analysis. Complete retouchers with blank modifications fall within the range of variability of complete retouchers without blank modification, suggesting intentional shaping of blanks to conform to a standard template. The range of variability of the bone retouchers does not differ significantly from that of the most highly modified lithic artifacts at Chagyrskayaplano-convex bifaceswhich may indicate intentional shape control for such artifacts. Geometric-morphometric analysis indicates that the anatomical origin of bone blanks does not significantly influence the retouchers' shape, which may point to strict blank selection and, at the same time, intentional modification. Our results raise questions regarding the integration of retouchers into a complex, multidimensional "chaine-op´eratoire" as well as the nature of Neanderthal cognitive abilities. Geometric-morphometric shape analysis represents a major step forward in the study of prehistoric retouchers.

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The Use of 3D-Modeling for Reconstructing the Appearance and Function of Non-Utilitarian Items (the Case of Anthropomorphic Figurines from Tourist-2)

Cited by 2 publications

References 0 publications

Sculpture 3D Modeling Method Based on Image Sequence

Sculpture 3D Modeling Method Based on Image Sequence

The application of geometric-morphometric shape analysis to Middle Paleolithic bone retouchers from the Altai Mountains, Russia

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