Time-of-Flight 3-D Endoscopy

Penne, Jochen; Höller, Kurt; Stürmer, Michael; Schrauder, Thomas; Schneider, Armin; Engelbrecht, Rainer; Feußner, H.; Schmauß, Bernhard; Hornegger, Joachim

doi:10.1007/978-3-642-04268-3_58

Cited by 68 publications

(47 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The technique is implemented non-invasively in reflective mode. This opens a new set of possibilities for applications such as tracking and locating probes in photocytometry 20 , endoscopy 21 and larger-scale industrial tomography 22 .…”

mentioning

confidence: 99%

Locating and classifying fluorescent tags behind turbid layers using time-resolved inversion

et al. 2015

View full text Add to dashboard Cite

The use of fluorescent probes and the recovery of their lifetimes allow for significant advances in many imaging systems, in particular, medical imaging systems. Here we propose and experimentally demonstrate reconstructing the locations and lifetimes of fluorescent markers hidden behind a turbid layer. This opens the door to various applications for non-invasive diagnosis, analysis, flowmetry and inspection. The method is based on a time-resolved measurement that captures information about both fluorescence lifetime and spatial position of the probes. To reconstruct the scene, the method relies on a sparse optimization framework to invert time-resolved measurements. This wide-angle technique does not rely on coherence, and does not require the probes to be directly in line of sight of the camera, making it potentially suitable for long-range imaging.

show abstract

mentioning

confidence: 99%

Locating and classifying fluorescent tags behind turbid layers using time-resolved inversion

et al. 2015

View full text Add to dashboard Cite

show abstract

“…An endoscope with a time-of-flight (ToF) sensor was developed by Penne et al (2009) and improved by Groch et al (2012). The ToF technique does not require a baseline or a projection unit and is thus relatively compact.…”

Section: Time-of-flightmentioning

confidence: 99%

Overview of Photogrammetric Measurement Techniques in Minimally Invasive Surgery Using Endoscopes

Conen

Lühmann

2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:This contribution provides an overview of various photogrammetric measurement techniques in minimally invasive surgery and presents a self-developed prototypical trinocular endoscope for reliable surface measurements. Most of the presented techniques focus on applications regarding laparoscopy, which mean endoscopic operations in the abdominal or pelvic cavities. Since endoscopic operations are very demanding to the surgeon, various assistant systems have been developed. Imaging systems may use photogrammetric techniques in order to perform 3D measurements during operation. The intra-operatively acquired 3D data may be used for analysis, model registration, guidance or documentation. Passive and active techniques have been miniaturised, integrated into endoscopes and investigated by several research groups. The main advantages and disadvantages of several active and passive techniques adapted to laparoscopy are described in this contribution. Additionally, a self-developed trinocular endoscope is described and evaluated.

show abstract

“…The first ToF-based endoscope was proposed by Penne et al [55]. The authors combined a commercial ToF camera featuring a lateral resolution of 64×48 px with a rigid standard endoscope optics.…”

Section: -D Endoscopy For Minimally Invasive Proceduresmentioning

confidence: 99%

Real-Time Range Imaging in Health Care: A Survey

Bauer

Seitel

Hofmann³

et al. 2013

Lecture Notes in Computer Science

Self Cite

View full text Add to dashboard Cite

Abstract. The recent availability of dynamic, dense, and low-cost range imaging has gained widespread interest in health care. It opens up new opportunities and has an increasing impact on both research and commercial activities. This chapter presents a state-of-the-art survey on the integration of modern range imaging sensors into medical applications. The scope is to identify promising applications and methods, and to provide an overview of recent developments in this rapidly evolving domain. The survey covers a broad range of topics, including guidance in computer-assisted interventions, operation room monitoring and workflow analysis, touch-less interaction and on-patient visualization, as well as prevention and support in elderly care and rehabilitation. We put emphasis on dynamic and interactive tasks where real-time and dense 3-D imaging forms the key aspect. While considering different range imaging modalities that fulfill these requirements, we particularly investigate the impact of Time-of-Flight imaging in this domain. Eventually, we discuss practical demands and limitations, and open research issues and challenges that are of fundamental importance for the progression of the field.

show abstract

Time-of-Flight 3-D Endoscopy

Cited by 68 publications

References 14 publications

Locating and classifying fluorescent tags behind turbid layers using time-resolved inversion

Locating and classifying fluorescent tags behind turbid layers using time-resolved inversion

Overview of Photogrammetric Measurement Techniques in Minimally Invasive Surgery Using Endoscopes

Real-Time Range Imaging in Health Care: A Survey

Contact Info

Product

Resources

About