Mammography Tomosynthesis System for High Performance 3D Imaging

2006 ◽  
pp. 137-143 ◽  
Author(s):  
Jeffrey W. Eberhard ◽  
Douglas Albagli ◽  
Andrea Schmitz ◽  
Bernhard E. H. Claus ◽  
Paul Carson ◽  
...  
Keyword(s):  
High Performance ◽  
3D Imaging

High-performance indoor positioning and pose estimation with time-of-flight 3D imaging

2017 ◽  
Author(s):  
Hannes Plank ◽  
Theresa Egger ◽  
Christoph Steffan ◽  
Christian Steger ◽  
Gerald Holweg ◽  
...  
Keyword(s):  
Pose Estimation ◽  
High Performance ◽  
3D Imaging ◽  
Time Of Flight ◽  
Indoor Positioning

High-performance 3D-imaging laser sensor

1999 ◽  
Author(s):  
Andreas Ullrich ◽  
Rainer Reichert ◽  
Nikolaus Studnicka ◽  
Johannes Riegl
Keyword(s):  
High Performance ◽  
3D Imaging ◽  
Laser Sensor

scholarly journals Towards Quantum 3D Imaging Devices

2021 ◽  
Vol 11 (14) ◽  
pp. 6414
Author(s):  
Cristoforo Abbattista ◽  
Leonardo Amoruso ◽  
Samuel Burri ◽  
Edoardo Charbon ◽  
Francesco Di Lena ◽  
...  
Keyword(s):  
High Resolution ◽  
High Performance ◽  
3D Imaging ◽  
Single Photon ◽  
Signal To Noise Ratio ◽  
Photon Number ◽  
Quantum Fisher Information ◽  
Quantum Tomography ◽  
Low Noise ◽  
Quantum Limit

We review the advancement of the research toward the design and implementation of quantum plenoptic cameras, radically novel 3D imaging devices that exploit both momentum–position entanglement and photon–number correlations to provide the typical refocusing and ultra-fast, scanning-free, 3D imaging capability of plenoptic devices, along with dramatically enhanced performances, unattainable in standard plenoptic cameras: diffraction-limited resolution, large depth of focus, and ultra-low noise. To further increase the volumetric resolution beyond the Rayleigh diffraction limit, and achieve the quantum limit, we are also developing dedicated protocols based on quantum Fisher information. However, for the quantum advantages of the proposed devices to be effective and appealing to end-users, two main challenges need to be tackled. First, due to the large number of frames required for correlation measurements to provide an acceptable signal-to-noise ratio, quantum plenoptic imaging (QPI) would require, if implemented with commercially available high-resolution cameras, acquisition times ranging from tens of seconds to a few minutes. Second, the elaboration of this large amount of data, in order to retrieve 3D images or refocusing 2D images, requires high-performance and time-consuming computation. To address these challenges, we are developing high-resolution single-photon avalanche photodiode (SPAD) arrays and high-performance low-level programming of ultra-fast electronics, combined with compressive sensing and quantum tomography algorithms, with the aim to reduce both the acquisition and the elaboration time by two orders of magnitude. Routes toward exploitation of the QPI devices will also be discussed.

Localization and Context Determination for Cyber-Physical Systems Based on 3D Imaging

2018 ◽  
pp. 1-26 ◽  
Author(s):  
Hannes Plank ◽  
Josef Steinbaeck ◽  
Norbert Druml ◽  
Christian Steger ◽  
Gerald Holweg
Keyword(s):  
High Performance ◽  
3D Imaging ◽  
Rapid Development ◽  
Cyber Physical Systems ◽  
Consumer Electronics ◽  
Context Aware ◽  
Physical Systems ◽  
Depth Sensors ◽  
Location Aware ◽  
Novel Concept

In recent years, consumer electronics became increasingly location and context-aware. Novel applications, such as augmented and virtual reality have high demands in precision, latency and update rate in their tracking solutions. 3D imaging systems have seen a rapid development in the past years. By enabling a manifold of systems to become location and context-aware, 3D imaging has the potential to become a part of everyone's daily life. In this chapter, we discuss 3D imaging technologies and their applications in localization, tracking and 3D context determination. Current technologies and key concepts are depicted and open issues are investigated. The novel concept of location-aware optical communication based on Time-of-Flight depth sensors is introduced. This communication method might close the gap between high performance tracking and localization. The chapter finally provides an outlook on future concepts and work-in progress technologies, which might introduce a new set of paradigms for location-aware cyber-physical systems in the Internet of Things.

High-Performance Akinetic Parallel Light Field Sensor for 3D Imaging

2021 ◽  
Author(s):  
José Luis Rubio Guivernau ◽  
Iván Bravo Gonzalo ◽  
Eduardo Margallo-Balbás ◽  
Grégory Pandraud
Keyword(s):  
High Performance ◽  
3D Imaging ◽  
Light Field ◽  
Field Sensor

A High Performance Energy Analyzer for Use in Electron Scanning Microscopy

1969 ◽  
Vol 27 ◽  
pp. 14-15
Author(s):  
A. V. Crewe ◽  
M. Isaacson ◽  
D. Johnson
Keyword(s):  
High Performance ◽  
Vertical Plane ◽  
Median Plane ◽  
Electron Gun ◽  
Uniform Field ◽  
Loss Mechanism ◽  
Electron Scanning Microscopy ◽  
Sector Type ◽  
Double Focusing ◽  
Electron Energy Loss

A double focusing magnetic spectrometer has been constructed for use with a field emission electron gun scanning microscope in order to study the electron energy loss mechanism in thin specimens. It is of the uniform field sector type with curved pole pieces. The shape of the pole pieces is determined by requiring that all particles be focused to a point at the image slit (point 1). The resultant shape gives perfect focusing in the median plane (Fig. 1) and first order focusing in the vertical plane (Fig. 2).

Vacuum System to Minimize the Specimen Contamination of High-Performance EM

1977 ◽  
Vol 35 ◽  
pp. 68-69
Author(s):  
N. Yoshimura ◽  
K. Shirota ◽  
T. Etoh
Keyword(s):  
Electron Microscope ◽  
High Speed ◽  
High Performance ◽  
High Vacuum ◽  
Vacuum System ◽  
Pump System ◽  
Pumping System ◽  
Diffusion Pump ◽  
Almost All ◽  
Cascade Type

One of the most important requirements for a high-performance EM, especially an analytical EM using a fine beam probe, is to prevent specimen contamination by providing a clean high vacuum in the vicinity of the specimen. However, in almost all commercial EMs, the pressure in the vicinity of the specimen under observation is usually more than ten times higher than the pressure measured at the punping line. The EM column inevitably requires the use of greased Viton O-rings for fine movement, and specimens and films need to be exchanged frequently and several attachments may also be exchanged. For these reasons, a high speed pumping system, as well as a clean vacuum system, is now required. A newly developed electron microscope, the JEM-100CX features clean high vacuum in the vicinity of the specimen, realized by the use of a CASCADE type diffusion pump system which has been essentially improved over its predeces- sorD employed on the JEM-100C.

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