Results 111 to 120 of about 1,762,518 (330)

Performance Analysis of Deep Learning-Based Lossy Point Cloud Geometry Compression Coding Solutions

IEEE Access
The quality evaluation of three deep learning-based coding solutions for point cloud geometry, notably ADLPCC, PCC GEO CNNv2, and PCGCv2, is presented. The MPEG G-PCC was used as an anchor. Furthermore, LUT SR, which uses multi-resolution Look-Up tables,
Joao Prazeres, Rafael Rodrigues, Manuela Pereira, Antonio M. G. Pinheiro   +3 more
doaj   +1 more source

PCQD‐AR: Subjective quality assessment of compressed point clouds with head‐mounted augmented reality

Electronics Letters
This letter fully studies the coloured point cloud quality assessment in augmented reality (AR) environment through subjective test. Firstly, a point cloud dataset, named point cloud quality dataset‐AR, including ten reference point clouds and their 90 ...
Chunling Fan, Yun Zhang, Linwei Zhu, Xinju Wu   +3 more
doaj   +1 more source

Hyperoxia Induced Alteration of Chromatin Structure in Human Bone Marrow Derived Primary Mesenchymal Stromal Cells

Advanced Biology, EarlyView.
Chromatin, which organizes DNA, changes its structure to adapt to stress like high oxygen levels (hyperoxia), which can damage cells. Researchers developed a technique to observe these changes and found variability in how different parts of chromatin remodel.
Lauren Monroe, Samantha Kaonis, Natalie Calahan, Neda Kabi, Soham Ghosh   +4 more
wiley   +1 more source

Non-Uniform Voxelisation for Point Cloud Compression

Sensors
Point cloud compression is essential for the efficient storage and transmission of 3D data in various applications, such as virtual reality, autonomous driving, and 3D modelling.
Bert Van hauwermeiren, Leon Denis, Adrian Munteanu   +2 more
doaj   +1 more source

Differential geometry of a surface at a planar point [PDF]

, 1936
V. G. Grove
openalex   +1 more source

Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics

Advanced Biology, EarlyView.
This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim, Kanghoon Choi, Amy Lin, Jungkyu Kim   +3 more
wiley   +1 more source

The connection and the normal to a hypersurface in the riemannian space from the point of affine geometry [PDF]

, 1951
František Nožička
openalex   +1 more source

Using a Supramolecular Approach to Engineer Modular Hydrogel Platforms for Culturing Protoplasts – from General Tissue Engineering to Cellular Agriculture

Advanced Biology, EarlyView.
Using supramolecular monomers, various hydrogel culture systems were formulated to culture protoplasts; including 2D, 2.5D, and 3D hydrogels. Depending on the culture platform, bioactive functionalization led to protoplast enlargement (2D and 2.5D) or plasmolysis (3D). This work shows the potential to modularly engineer synthetic platforms for cellular
Maritza M. Rovers, Erik J. Slootweg, Ferdinand C. O. Los, Patricia Y. W. Dankers   +3 more
wiley   +1 more source

Back to geometry: Efficient indoor space segmentation from point clouds by 2D–3D geometry constrains

International Journal of Applied Earth Observations and Geoinformation
This paper addresses the challenge of indoor space segmentation from 3D point clouds, which is essential for understanding interior layouts, reconstructing 3D structures, and developing indoor navigation maps.
Shengjun Tang, Junjie Huang, Benhe Cai, Han Du, Baoding Zhou, Zhigang Zhao, You Li, Weixi Wang, Renzhong Guo   +8 more
doaj  

Numerical Studies of Influencing Factors on the Homogeneity of the Powder Mixture during the Powder Spreading Process of Powder Bed Fusion–Laser Beam/Metal

Advanced Engineering Materials, EarlyView.
AISI 304L stainless steel powder is mixed with silicon nitride (Si3N4) powder and processed by PBF‐LB/M, allowing partial retention of Si3N4. The numerical approach effectively predicts the Si3N4 powder homogeneity and N content distribution on the powder bed. Recent studies have focused on the alloying of nitrogen (N) in high‐alloy stainless steels by
Yuanbin Deng, Ziping Sang, Jiali Zhang, Felix Radtke, Louis Becker, Simone Herzog, Sebastian Weber, Christoph Broeckmann   +7 more
wiley   +1 more source