Uncalibrated and Unsupervised Photometric Stereo with Piecewise Regularizer
2024 IEEE International Conference on Image Processing (ICIP)Photometric stereo is a technique for recovering a rigid object's 3D shape, reflectance properties, lighting conditions, and specular highlights from multiple images captured under varying lighting conditions. Variational, uncalibrated, and unsupervised formulations have recently provided detailed and robust solutions to the problem, reducing the need ...
Casanova Martin, Alejandro +1 more
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Deep Uncalibrated Photometric Stereo Via Inter-Intra Image Feature Fusion
SSRN Electronic Journal, 2022 Uncalibrated photometric stereo is proposed to estimate the detailed surface normal from images under varying and unknown lightings. Recently, deep learning brings powerful data priors to this underdetermined problem. This paper presents a new method for deep uncalibrated photometric stereo, which efficiently utilizes the inter-image representation to ...
Fangzhou Gao +4 more
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3D Face Reconstruction using Color Photometric Stereo with Uncalibrated Near Point Lights [PDF]
2020 IEEE International Conference on Computational Photography (ICCP), 2020 We present a new color photometric stereo (CPS) method that recovers high quality, detailed 3D face geometry in a single shot. Our system uses three uncalibrated near point lights of different colors and a single camera. For robust self-calibration of the light sources, we use 3D morphable model (3DMM) and semantic segmentation of facial parts.
Zhang Chen +4 more
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CoRR, 2022 Uncalibrated photometric stereo (UPS) is challenging due to the inherent ambiguity brought by unknown light. Existing solutions alleviate the ambiguity by either explicitly associating reflectance to light conditions or resolving light conditions in a supervised manner.
Zongrui Li 0001 +5 more
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Combining Photogrammetry and Photometric Stereo to Achieve Precise and Complete 3D Reconstruction. [PDF]
Sensors (Basel), 2022 Karami A, Menna F, Remondino F.
europepmc +1 more source
Dense Depth Estimation from Stereo Endoscopy Videos Using Unsupervised Optical Flow Methods. [PDF]
Med Image Underst Anal, 2021 Yang Z, Simon R, Li Y, Linte CA.
europepmc +1 more source
An Overview on Image-Based and Scanner-Based 3D Modeling Technologies. [PDF]
Sensors (Basel), 2023 Verykokou S, Ioannidis C.
europepmc +1 more source
3D modeling and reconstruction of plants and trees: A cross-cutting review across computer graphics, vision, and plant phenotyping. [PDF]
Breed Sci, 2022 Okura F.
europepmc +1 more source
RAUM-VO: Rotational Adjusted Unsupervised Monocular Visual Odometry. [PDF]
Sensors (Basel), 2022 Cimarelli C +3 more
europepmc +1 more source
Forensic comparison of fired cartridge cases: Feature-extraction methods for feature-based calculation of likelihood ratios. [PDF]
Forensic Sci Int Synerg, 2022 Basu N, Bolton-King RS, Morrison GS.
europepmc +1 more source