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Augmented reality (AR) allows to seamlessly insert virtual objects in an image sequence. In order to accomplish this goal, it is important that synthetic elements are rendered and aligned in the scene in an accurate and visually acceptable way. The solution of this problem can be related to a pose estimation or, equivalently, a camera localization process. This paper aims at presenting a brief but almost self-contented introduction to the most important approaches dedicated to vision-based camera localization along with a survey of several extension proposed in the recent years. For most of the presented approaches, we also provide links to code of short examples. This should allow readers to easily bridge the gap between theoretical aspects and practical implementations.
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http://dx.doi.org/10.1109/TVCG.2015.2513408 | DOI Listing |
Behav Res Methods
September 2025
Czech Technical University in Prague, Faculty of Electrical Engineering, Department of Cybernetics, Prague, Czech Republic.
Automatic markerless estimation of infant posture and motion from ordinary videos carries great potential for movement studies "in the wild", facilitating understanding of motor development and massively increasing the chances of early diagnosis of disorders. There has been a rapid development of human pose estimation methods in computer vision, thanks to advances in deep learning and machine learning. However, these methods are trained on datasets that feature adults in different contexts.
View Article and Find Full Text PDFPLoS One
September 2025
Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt.
Polar protic and aprotic solvents can effectively simulate the maturation of breast carcinoma cells. Herein, the influence of polar protic solvents (water and ethanol) and aprotic solvents (acetone and DMSO) on the properties of 3-(dimethylaminomethyl)-5-nitroindole (DAMNI) was investigated using density functional theory (DFT) computations. Thermodynamic parameters retrieved from the vibrational analysis indicated that the DAMNI's entropy, heat capacity, and enthalpy increased with rising temperature.
View Article and Find Full Text PDFFood Addit Contam Part A Chem Anal Control Expo Risk Assess
September 2025
Department of Chemistry, CMS College, Mahatma Gandhi University, Kottayam, Kerala, India.
A single-laboratory ultra-performance liquid chromatography-mass spectrometry method was developed and validated for the estimation of tetraniliprole, BCS CQ 63359, spirotetramat and its metabolites from chilli and brinjal (commonly known as eggplant, aubergine or guinea squash) samples for assessing the dissipation kinetics and dietary risk assessment of field-applied tetraniliprole and spirotetramat. The control samples of brinjal and chilli fortified with tetraniliprole, spirotetramat and their metabolites at three levels of 0.01, 0.
View Article and Find Full Text PDFIEEE Trans Pattern Anal Mach Intell
September 2025
Transformers have been successfully applied in the field of video-based 3D human pose estimation. However, the high computational costs of these video pose transformers (VPTs) make them impractical on resource-constrained devices. In this paper, we present a hierarchical plug-and-play pruning-and-recovering framework, called Hierarchical Hourglass Tokenizer (HOT), for efficient transformer-based 3D human pose estimation from videos.
View Article and Find Full Text PDFEur J Orthop Surg Traumatol
September 2025
All India Institute of Medical Sciences Bhubaneswar, Bhubaneswar, India.
Background: Pelvic and acetabular fractures, often resulting from high-impact trauma, pose significant challenges due to extensive blood loss and complex surgical procedures. Tranexamic acid (TXA), widely used in elective orthopedic surgeries, offers a potential strategy for managing blood loss. However, its efficacy and safety in pelvic-acetabular trauma surgeries have shown inconsistent results in prior studies.
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