Results 121 to 130 of about 618 (156)

Plane-Based Resection for Metric Affine Cameras

Journal of Mathematical Imaging and Vision, 2018
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Adrien Bartoli, Toby Collins
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Real-time FPGA based 3D camera resectioning

2011 IEEE International Games Innovation Conference (IGIC), 2011
This paper describes an embedded system based framework for processing depth and RGB images. This work provides a FPGA accelerated real-time solution for the problem of resectoning image data from a 3D camera to the coordinates of an RGB camera.
Daniel M. Ho, null Feng-ming Zhu, null Wai-Chi Fang   +2 more
openaire   +1 more source

Robust 6DOF measurement for non-overlapping multi-camera systems based on uncertainty-weighted space resection

2019 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 2020
This paper introduces an improved 6DOF measurement method for the non-overlapping multi-camera systems. In contrast to the existing equal-weighted bundle adjustment methods, the proposed method assigns an uncertainty based weight to each of the non-overlapping cameras.
Zhiyuan Niu, Linghui Yang, Yongjie Ren, Jiarui Lin, Jigui Zhu   +4 more
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Multi-image space resection based geometric calibration for Four bands CCD camera

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
High altitude photographic work such as Aerial photogrammetry and UAV photography has very high demands on geometric optical parameters of the CCD camera, one millimeter or one pixel error of geometric optical parameters tends to cause a few meters or even dozens of meters error on the ground, so the camera's high-precision geometric optical parameters
Xingfeng Chen, Xingfa Gu, Huibin Ge, Jinjin Zhang, Jiping Chen, Fengjie Zheng, Guoti Yuan, Jun Liu   +7 more
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A recursive camera resectioning technique for off-line video-based augmented reality

Pattern Recognition Letters, 2007
In this paper, we propose a new recursive framework for camera resectioning and apply it to off-line video-based augmented reality. Our method is based on an unscented particle filter and an independent Metropolis-Hastings chain, which deal with nonlinear dynamic systems without local linearization, and lead to more accurate results than other ...
Kim, JS, Hong, KS
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The Tumor Resection Camera (TReCam), a multipixel imaging probe for radio-guided surgery

2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC), 2009
Using the POCI camera, we recently demonstrated the clinical impact of per-operative imaging techniques thanks to a successful clinical trial. Taking advantage of both the POCI experience and the availability of new pixelated detectors, we are developing a new hand held gamma camera TReCam (Tumor Resection Camera).
E. Netter, L. Pinot, L. Menard, M. A. Duval, B. Janvier, F. Lefebvre, R. Siebert, Y. Charon   +7 more
openaire   +1 more source

Self-normalising linear camera resection

2015 International Conference on Image and Vision Computing New Zealand (IVCNZ), 2015
An alternative linear method of estimating camera parameters from an image of a known object is presented. It has the immediate advantages over the commonly recommended direct linear transform that it does not require prior normalisation of the data and gives an unbiased estimate of the focal length even for noisy data.
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Is the Use of a Robotic Camera Holder Economically Viable? A Cost Comparison of Surgical Assistant Versus the Use of a Robotic Camera Holder in Laparoscopic Liver Resections

Surgical Laparoscopy, Endoscopy & Percutaneous Techniques, 2017
The laparoscopic approach has gained acceptance in the field of hepatopancreaticobiliary surgery. It offers several advantages including reduced blood loss, reduced postoperative pain, and shorter length of stay. However, long operating times can be associated with surgeon and assistant fatigue and image tremor.
Martyn C, Stott, Jenifer, Barrie, Domnic, Sebastien, Christa, Hammill, Daren A, Subar   +4 more
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Intraoperative application of thermal camera for the assessment of during surgical resection or biopsy of human’s brain tumors

SPIE Proceedings, 2014
Motivation to undertake research on brain surface temperature in clinical practice is based on a strong conviction that the enormous progress in thermal imaging techniques and camera design has a great application potential. Intraoperative imaging of pathological changes and functionally important areas of the brain is not yet fully resolved in ...
M. Kastek, T. Piatkowski, H. Polakowski, K. Kaczmarska, Z. Czernicki, J. Bogucki, M. Zębala   +6 more
openaire   +1 more source

How Did the Endoscopic Video Camera Change Our Practice in Transurethral Resection of the Prostate? A Retrospective Study of 200 Cases

Journal of Endourology, 2002
Video camera-assisted transurethral resection of the prostate (TURP) is an invaluable teaching tool and provides physical comfort to the surgeon. However, whether it improves technical skills and reduces complications rates and hospital stay has not been well documented.We retrospectively reviewed 100 cases of video camera-assisted (VCA) TURP and 100 ...
Yassine, Nouira, Imed, Kbaier, Fethi, Attyaoui, Ali, Horchani   +3 more
openaire   +2 more sources