A5078642167- 3D Surveying and Cultural Heritage
- Augmented Reality Applications
- Interactive and Immersive Displays
- Computer Graphics and Visualization Techniques
- Virtual Reality Applications and Impacts
- Advanced Vision and Imaging
- Image Processing and 3D Reconstruction
- Robotics and Sensor-Based Localization
- 3D Shape Modeling and Analysis
- Advanced Image and Video Retrieval Techniques
- Optical measurement and interference techniques
- Oral and Maxillofacial Pathology
- Advanced Data Compression Techniques
- Image Retrieval and Classification Techniques
- Archaeological Research and Protection
- Robotics and Automated Systems
- Chemistry Education and Research
- Color Science and Applications
- Historical and Architectural Studies
- Advanced Optical Imaging Technologies
- Health, Nursing, Elderly Care
- Advanced Numerical Analysis Techniques
- Oral and gingival health research
- Infrared Target Detection Methodologies
- Remote Sensing and LiDAR Applications
Fraunhofer Institute for Computer Graphics Research
2015-2025
Universidade Federal do Amazonas
2023
Instituto Politécnico de Leiria
2023
Centro Hospitalar de Vila Nova de Gaia
2022
IPO Porto
2022
Technical University of Darmstadt
2015-2020
Instituto Politécnico de Beja
2017
Madeira Tecnopolo
2017
Awaiba (Portugal)
2017
INESC TEC
2011
Abstract. The advent of technology in digital cameras and their incorporation into virtually any smart mobile device has led to an explosion the number photographs taken every day. Today, images stored online available freely reached unprecedented levels. It is estimated that 2011, there were over 100 billion just one major social media sites. This growing exponentially. Moreover, advances fields Photogrammetry Computer Vision have significant breakthroughs such as Structure from Motion...
This article provides an overview of the challenges and developments first autonomous, robot-assisted 3-D digitization approaches that ensure completeness repeatable high quality resulting models for objects arbitrary shapes a wide range materials. The European Cultural Heritage Strategy 21st century has spurred demand fast efficient technologies cultural heritage artifacts. Unlike widely automated 2-D digitization, often requires significant manual intervention. To address this, at...
Abstract Image-based 3D reconstruction is a powerful method for accurately reconstructing an object’s geometry and texture from images. A crucial factor the accuracy completeness of resulting reconstructed model choice poses capturing images, which called view planning. One possible planning strategy uses iterative feedback loop that switches between incremental to autonomously digitize object without prior knowledge. However, this approach requires identifying parts are “poorly...
The progressive forming of complex components, including blanking, deep-drawing, and bending, represents an economically efficient sheet metal processing method. Wear control is crucial for ensuring product quality by preventing defects minimizing material waste. integration optical sensors qualitative wear detection, driven advancing digitisation miniaturisation, supplements conventional monitoring techniques. This study introduces a modular, agile camera-based measurement system that...
In the heritage field, demand for fast and efficient 3D digitization technologies historic remains is increasing. Besides, has proved to be a promising approach enable precise reconstructions of objects. Yet, unlike digital acquisition cultural goods in 2D widely used today, often still requires significant investment time money. To make it more available institutions, <em>Competence Center Cultural Heritage Digitization</em> at <em>Fraunhofer Institute Computer Graphics...
Acquisition of 3D geometry, texture and optical material properties real objects still consumes a considerable amount time, forces humans to dedicate their full attention this process. We propose CultLab3D, an automatic modular digitization pipeline, aiming for efficient mass texture, properties. CultLab3D requires minimal human intervention reduces processing time fraction today's efforts manual digitization. The final step in our workflow involves the integration digital object into...
This paper presents the usability evaluation results of Mix It, a test bed for authoring in mixed reality environments. While augmented and interfaces have been around few years, considerable work needs to be done assessment novel interaction techniques We conducted evaluations simple manipulations using geometric transformations (translation, rotation, scaling). Even though are preliminary user group is comparatively small, experimental proved useful deriving guidelines further developments...
One of the main characteristics Internet era we are living in, is free and online availability a huge amount data. This data varied reliability accuracy exists in various forms formats. Often, it cross-referenced linked to other data, forming nexus text, images, animation audio enabled by hypertext and, recently, Web3.0 standard. Search engines can search text for keywords using algorithms intelligence with limited success. Searching images much more complex computationally intensive task...
This paper introduces an immersive styling environment, which aims at closing the gap between 2D drawing and 3D modeling in design process. The main goal of system is to provide user easy use interface hiding inherent mathematic nature CAD. Creating rough sketches should literally be as intuitive sketching with pen paper. To achieve this, tools developed our benefit from stylists' skills, acquired through training over time. focuses on stroke-input methods system. We present different...
In this paper we present an extended approach for stroke oversketching. The oversketching technique changes a curve by redrawing parts of it. Finding the part to replace and smoothing transition is done automatically. Our extension constraints change one single side profile leaving other profiles unchanged. Additionally advantage using in car design following classic four-side-view drawing approach.
to present a challenge in terms of performance, robustness and accuracy. In particular mobile augmented reality applications are need tracking systems which can be wearable do not cause high processing load. this paper we introduce novel iterative geometric method for pose estimation from four co-planar points the current status PTrack, marker-based single camera system benefiting approach. The uses an IDS uEye [1] camera, equipped with infrared flash strobes pass filter, acquires grayscale...
In this paper we present an innovative daylight blocking optical stereo see-through HMD. Its outstanding capability is to pixelwise block incident before super-imposing virtual content on the real scene. By doing so device allows seamlessly mix and without well-known effects of other displays where will always shine through content. To our knowledge related work very limited first commercial HMD available.
This paper introduces new approaches to enable collaborative outdoor mixed reality design review in the architectural domain as well experiences cultural heritage domain.For this purpose we present results of three closely related European projects, IMPROVE and CINeSPACE, which are currently succeeded by MAXIMUS, continuing development technologies relevant two domains.The focuses on base needed develop usable applications, such marker-less optical tracking combined with sensor fusion for...
This work reports and experiments a tangible mixed reality system for architectural design usage scenarios, such as conceptual design, client brief or education. The provides the means an architect to intuitively interact with augmented version of real scale model, in normal working settings, where he can observe 3D virtual objects registered ones. Intuitive interfaces, implemented paddles, are used aid editing tasks environment. By paddle gesturing recognition, it is possible activate menu,...
One of the main characteristics Internet era we are living in, is free and online availability a huge amount data. This data varied reliability accuracy exists in various forms formats. Often, it cross-referenced linked to other data, forming nexus text, images, animation audio enabled by hypertext and, recently, Web3.0 standard. Our goal enable historians, architects, archaeolo- gists, urban planners affiliated professionals reconstruct views historical monuments from thousands images...