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3d data processing: Towards the Automated BIM in Inhabited Indoors

REVISTA IBEROAMERICANA dE AUTOMATICA E INFORMATICA INdUSTRIAL 2011年第4期8卷 357-370页

作者： Adan, A. Huber, d. Univ Castilla La Mancha Dept Ingn Elect Elect & Automat E-13071 Ciudad Real Spain Carnegie Mellon Univ Inst Robot Pittsburgh PA 15213 USA

In this paper we present a method for the reconstruction of interiors using a set of panoramic range data in scenes with clutter and occlusion. Although the ultimate goal of our project is to obtain automated Building Information Models of facilities, here we specifically deal with the reconstruction of simply-shaped wide areas (such as walls, ceilings and floors) behind furniture and facility pieces in interiors. Our approach is based on a sequential updating labeling strategy in different data representation spaces. A volumetric representation is used to permit the labeling of the 3d space for different range data and the fusion of all the scene's labels to obtain one single 2d labeling image for each of the simply-shaped wide areas of the room. Based on this labeling process, our method is able both to identify the occluded regions in the wall and, through a learning technique, to infer essential parts, such as doors, windows and closets. This method was tested under difficult clutter and occlusion conditions, yielding promising results. Scans were obtained using a state of the art laser scanner operated by a professional 3d scanning service provider.

关键词： 3d data processing Computer Vision digitizers 3d Modeling Recognition

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Handling data Scarcity Through data Augmentation in Training of deep Neural Networks for 3d data processing

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INTERNATIONAL JOURNAL ON SEMANTIC WEB ANd INFORMATION SYSTEMS 2022年第1期18卷 1-16页

作者： Srivastava, Akhilesh Mohan Rotte, Priyanka Ajay Jain, Arushi Prakash, Surya Indian Inst Technol Indore India

due to the availability of cheap 3d sensors such as Kinect and LidAR, the use of 3d data in various domains such as manufacturing, healthcare, and retail to achieve operational safety, improved outcomes, and enhanced customer experience has gained momentum in recent years. In many of these domains, object recognition is being performed using 3d data against the difficulties posed by illumination, pose variation, scaling, etc. present in 2d data. In this work, the authors propose three data augmentation techniques for 3d data in point cloud representation that use sub-sampling. They then verify that the 3d samples created through data augmentation carry the same information by comparing the iterative closest point registration error within the sub-samples, between the subsamples and their parent sample, between the sub-samples with different parents and the same subject, and finally, between the sub-samples of different subjects. They also verify that the augmented sub-samples have the same characteristics and features as those of the original 3d point cloud by applying the central limit theorem.

关键词： 3d Biometrics 3d data processing Computer Vision data Augmentation Object Recognition Sampling

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A novel auricular prosthesis which incorporates a cartilage conduction hearing aid based on 3d data processing technique: a preclinical evaluation

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EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY 2022年第7期279卷 3741-3744页

作者： Nishiyama, Takanori Hayashi, Shintaro Oishi, Naoki Keio Univ Dept Otolaryngol Head & Neck Surg Sch Med Shinjuku Ku 35 Shinanomachi Tokyo 1608582 Japan Aiwa Prosthet & Orthot Co Ltd Nerima Ku 19-4 Sakaecho Tokyo Japan

Purpose To achieve the challenging goal of simultaneously improving aesthetics and auditory function in the treatment of microtia, we developed an auricular prosthesis incorporating a cartilage conduction hearing aid (APiCHA), which covers a cartilage conduction hearing aid (CC-HA). We evaluated the acoustic characteristics generated by the method of combining these two components using an artificial mastoid and investigated the possibility of clinical translation. Methods The first step in creating an APiCHA is to take molds of both the affected and normal auricles and invert the 3d data of the normal auricle to create data for the auricular prostheses. Grooves were then made inside the prosthetic data to fit the affected ear and a CC-HA, and the APiCHA was made of silicone. The acoustic characteristics were measured using an artificial mastoid, and the results were compared between CC-HA alone and with APiCHA. Results Compared with CC-HA alone, the gain was approximately 2 dB lower at high frequencies from 1 k Hz and higher, and approximately 2 dB higher at approximately 900 Hz when CC-HA was used with APiCHA. For the other frequencies, the acoustic characteristics were almost the same. Conclusion The changes in acoustic characteristics caused by the combined use of APiCHA and CC-HA were minimal and did not pose a clinical problem. The combined use of APiCHA and CC-HA can be considered as a non-invasive and clinically applicable treatment option to achieve both aesthetic and auditory improvements for microtia.

关键词： Atresia Microtia Auricular reconstruction Hearing loss 3d data processing Atresiaplasty

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Application of pseudo-3d sub-bottom profile imaging technology in small submarine target detection

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ACTA GEOPHYSICA 2025年第1期73卷 393-405页

作者： Li, Tianguang Huang, Zhiqing Zhang, Xiaobo Meng, Fansheng Pei, Yifan Guo, Jiali Southern Marine Sci & Engn Guangdong Lab Zhuhai Zhuhai 519000 Peoples R China Zhuhai Yunzhou Intelligence Technol LTD Zhuhai 519000 Peoples R China

The sub-bottom profiler is a valuable tool for obtaining high-resolution shallow stratigraphic data in marine geological and geophysical surveys. To detect and acquire the structural characteristics of small submarine objects, we developed a data processing method that utilizes 2d data to construct a 3d structural model. We conducted application experiments using sub-bottom profile detection data from Chuanshan Islands, which were explored using China's most advanced unmanned exploration platform and commercial shallow formation profiling system. To create high-resolution 3d seafloor structure models from recorded 2d sub-bottom profile datasets, an optimized data processing sequence was devised, comprising two stages: 2d data processing and 3d data processing. The 2d data processing stage involved spectrum analysis, band-pass filtering, matching filtering, time-varying gain, and surge correction. The subsequent 3d data processing stage encompassed ping location reallocation, static correction, and extraction of feature layer information. Notably, the final pseudo-3d sub-bottom profile time slice exhibited significant amplitude variations near the target body. This methodology represents an extension of the application of 2d sub-bottom profile data, enhancing the target recognition capabilities of such data. To further improve the precision of target body characterization, we used ArcScene 10.0 to create a 3d sub-bottom profile formation model spatial database. We constructed a submarine 3d formation structure model to show the 3d structural characteristics of the target body in detail and identified a seabed target body measuring 6.4 x 9.2 x 10 m.

关键词： Pseudo-3d sub-bottom profile 2d data processing 3d data processing Target detection

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Producing 3d radargrams from orbital radar sounding data at Mars: History, results, methods, lessons and plans

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ICARUS 2024年 419卷

作者： Foss II, Frederick J. Putzig, Nathaniel E. Campbell, Bruce A. Levin, Stewart A. Perry, Matthew R. Holt, John W. Christoffersen, Michael S. Smith, Isaac B. Morgan, Gareth A. Russell, Aaron T. Freestyle Analyt & Quantitat Serv LLC 2210 Parkview Dr Longmont CO 80504 USA Planetary Sci Inst 1700 E Ft Lowell RdSuite 106 Tucson AZ 85719 USA Planetary Sci Inst 405 Urban StSuite 300 Lakewood CO 80228 USA Smithsonian Inst Ctr Earth & Planetary Studies MRC 315POB 37012 Washington DC 20013 USA Stanford Univ Dept Geophys 397 Panama Mall Stanford CA 94305 USA Univ Arizona Lunar & Planetary Lab 1629 E Univ Blvd Tucson AZ 85721 USA York Univ Lassonde Sch Engn 4700 Keele St Toronto ON M3J 1P3 Canada Univ Alaska Fairbanks Geophys Inst 2156 Koyukuk Dr Fairbanks AK 99709 USA

The Shallow Radar (SHARAd) instrument aboard Mars Reconnaissance Orbiter (MRO) has been conducting sounding operations of Mars' near surface for more than 16 years. Results of the SHARAd investigation have been well documented in the literature, with relatively high coverage density in the polar regions leading to some of the earliest scientific discoveries there. data collection and ensuing surprises of SHARAd's primary and first extended science phases were the impetus for choosing the north polar region for producing a first 3d radar image. This early attempt was successful, producing the first 3d radar image of Mars' north polar layered deposits in Planum Boreum, and shortly thereafter a companion 3d radar image of the south polar layered deposits in Planum Australe. Subsequent work refined the 3d methodology used to produce these images, leading to a significantly higher quality 3d image of the former as well as the first 3d radar image of the debris-covered glaciers in the east-central portion of deuteronilus Mensae (dM) in the mid-latitudes. Prior experience in terrestrial seismic data processing and analysis methods forms the basis of the 3d methodology used with Martian radar data, and has been indispensable in ongoing efforts to improve this methodology to further clarify the 3d images of the targets. The purposes of this article are to review 1) the SHARAd 3d work history and results, 2) the methodology developed and challenges encountered thus far in producing the SHARAd 3d images, 3) the broader impact on the processing and analysis of SHARAd data, and 4) current efforts and plans for producing follow-on SHARAd 3d images. Similarities and differences between orbital radar and seismic sounding and data processing are sprinkled throughout the article as reminders that the outcomes in this case are very much the product of cross-disciplinary knowledge and experience.

关键词： Mars 3d orbital radar processing 3d data processing 3d radar imaging Mars polar ices Mars mid-latitude ices

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Visualization of 3d variable in time object based on data gathered by active measurement system

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OPTO-ELECTRONICS REVIEW 2008年第1期16卷 97-104页

作者： Garbat, P. Kujawinska, A. Warsaw Univ Technol Inst Microelect & Optoelect PL-00662 Warsaw Poland Warsaw Univ Technol Inst Micromec & Photon PL-02525 Warsaw Poland

The recent needs of analysis and visualization of variable in time real 3d objects in many applications require development of new approach towards combining rapid 3d shape acquisition and the methodology of data processing in order to perform visualization and analysis of real 3d dynamic objects. In this paper the general concept of visualization system of data gathered by means of optical 4d (x,y,z,t) shape measurement system is presented. The concept of a virtual camera, as the mean for interactive object visualization is introduced. The experimental results for processing of simulated and real variable in time 3d object are presented and discussed. The directions of future works focused on full implementation of the concept are introduced.

关键词： 3d object visualization 3d data processing

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Obtaining and Monitoring Warehouse 3d Models with Laser Scanner data

Obtaining and Monitoring Warehouse 3D Models with Laser Scan...

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3rd Iberian Robotics Conference (Robot)

作者： Adan, Antonio de La Rubia, david Vazquez, Andres S. Univ Castilla La Mancha Visual Comp & Robot Lab 3D E-13071 Ciudad Real Spain

ISBN: (纸本)9783319708362;9783319708355

This paper is focused on creating semantic 3d models of unstructured warehouses from coloured point clouds. Several scans from different locations of a laser scanner are integrated into a unique 3d dataset that is afterwards processed. The paper presents an efficient 3d processing algorithm that is able to segment, recognize and locate the existing materials of a storage place. The obtained 3d model provides to logistic managers precise and valuable information, such as: the current location of the stock, the free space for coming merchandises or the occupied volume variations between two scanning sessions taken at different times. The method has been tested under noise conditions in simulated scenarios and the extracted model has been compared with a ground truth model. The good results demonstrate that this approach could be useful in the logistic field.

关键词： 3d data processing Laser scanner 3d models Logistic 3d recognition and pose

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Using an attributed 2d-grid for next-best-view planning on 3d environment data for an autonomous robot

Using an attributed 2D-grid for next-best-view planning on 3...

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IEEE International Conference on Information and Automation

作者： Strand, Marcus dillmann, Ruediger KIT Inst Comp Sci & Engn CSE Karlsruhe Germany

ISBN: (纸本)9781424421831

The usage of geometrical 3d-models enables humans to plan and design different aspects of indoor environments. This article describes the next-best-view planner for an autonomous 3d modelling robot using a 3d laser scanner. Besides the human user, the constructed 3d-model can also be used by other autonomous robots for navigation and localization tasks. The process of building a 3d-model without any geometical pre-knowledge leads to a planning scheme which uses the 3d data. This article copes with that problem by using and attributed 2d grid combined with an intelligent action planning scheme for indoor environments.

关键词： 3d data processing Path Planning SLAM autonomous systems

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Quality Management for Big 3d data Analytics: A Case Study of Protein data Bank 4

Quality Management for Big 3D Data Analytics: A Case Study o...

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4th International Conference on Internet of Things, Big data and Security (IoTBdS)

作者： Bangui, Hind Ge, Mouzhi Buhnova, Barbora Masaryk Univ Inst Comp Sci Brno Czech Republic Masaryk Univ Fac Informat Brno Czech Republic

ISBN: (纸本)9789897583698

3d data have been widely used to represent complex data objects in different domains such as virtual reality, 3d printing or biological data analytics. due to complexity of 3d data, it is usually featured as big 3d data. One of the typical big 3d data is the protein data, which can be used to visualize the protein structure in a 3d style. However, the 3d data also bring various data quality problems, which may cause the delay, inaccurate analysis results, even fatal errors for the critical decision making. Therefore, this paper proposes a novel big 3d data process model with specific consideration of 3d data quality. In order to validate this model, we conduct a case study for cleaning and analyzing the protein data. Our case study includes a comprehensive taxonomy of data quality problems for the 3d protein data and demonstrates the utility of our proposed model. Furthermore, this work can guide the researchers and domain experts such as biologists to manage the quality of their 3d protein data.

关键词： Big data 3d data Quality data Cleaning 3d data processing data Analytics Protein data Bank

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A Framework for the Analysis of Parabolic Trough Collectors Using 3d data from Laser Scanners 9

A Framework for the Analysis of Parabolic Trough Collectors ...

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2015 9th International Conference on Compatibility and Power Electronics (CPE)

作者： Salamanca, Santiago Merchan, Pilar Perez, Emiliano Adan, Antonio Quintana, Blanca Univ Extremdura Escuela Ingn Ind Badajoz 06006 Spain Univ Castilla La Mancha Escuela Super Informat E-13071 Ciudad Real Spain

ISBN: (纸本)9781479963010

This paper presents an original method for the analysis of geometrical and physical properties of parabolic solar trough collectors that belong to operating solar thermal power plants. The method is applied in operating plants, which is a novelty with respect to the majority of the methods proposed so far, used only in the mirrors design phase. Laser scanners have turned out to be an ideal tool for acquiring the surface of parabolic mirrors on field. The aim of our proposal is the comparison of the sensed 3d data with a theoretical parabolic surface. All the phases needed for the achievement of this objective constitute a general framework that has been detailed throughout this paper. The proposed framework has been applied to the analysis of real surfaces of parabolic solar trough collectors acquired in an operating solar thermal plant. The results obtained demonstrate its validity and robustness.

关键词： parabolic solar trough collectors solar thermal power plants laser scanners 3d data processing 3d surfaces

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