Possibilities and limitations of current stereo-endoscopy

Mueller-Richter, Urs; Limberger, Annette; Weber, P.; Ruprecht, Klaus W.; Spitzer, W.J.; Schilling, Martin K.

doi:10.1007/s00464-003-9097-6

Cited by 34 publications

(26 citation statements)

References 43 publications

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“…Images can be acquired by either a dual-lens system or a single-lens system [4]. Dual-lens endoscopes have two separate lenses (and scopes) within one sheath, and two cameras (Fig.…”

Section: Image Acquisitionmentioning

confidence: 99%

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Three‐dimensional Visualization in Laparoscopic Surgery

et al. 2006

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“…Images can be acquired by either a dual-lens system or a single-lens system [4]. Dual-lens endoscopes have two separate lenses (and scopes) within one sheath, and two cameras (Fig.…”

Section: Image Acquisitionmentioning

confidence: 99%

“…The minimum number of international presentations as a first presenter was 2 (8,20), national presentations as first presenter was 1 (4,11), and regional presentations as first presenter was 0 (3,5). Of the 11 successful candidates, six had completed higher degrees; three had an MSc, and one each a Diploma, DNBE and MS.…”

mentioning

confidence: 99%

Three‐dimensional Visualization in Laparoscopic Surgery

et al. 2006

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“…Three dierent approaches have been proposed for endoscopy to estimate 3-D surface information: Stereo vision, structured light and Time-of-Flight (ToF). In stereo endoscopy, the displacement of corresponding features in the images of two cameras is used to calculate depth information based on a disparity map [5]. However, this approach requires a set of corresponding features in both images and is computationally expensive.…”

Section: Introductionmentioning

confidence: 99%

ToF/RGB Sensor Fusion for 3-D Endoscopy

Haase¹,

Forman²,

Kilgus³

et al. 2013

CMIR

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Abstract.Acquisition of 3-D anatomical structure in minimally invasive surgery is an important step towards intra-operative guidance. In this context, the rst prototype of a Time-of-Flight/RGB endoscope was engineered for simultaneous range and color data acquisition. Intrinsic and stereo camera calibration are essential to achieve an intuitive visualization of colored surfaces. Due to the early prototype stage, inhomogeneous illumination and low resolution (64×50 px) complicate the calibration signicantly. To overcome these challenges, we propose a fully automatic multiscale calibration framework using a self-encoded marker for checkerboard detection. A rst application demonstrates the feasibility of intra-operative measurement. Using our calibration scheme, we achieved a reprojection error of less than 0.7 px for the Time-of-Flight camera and 0.5 px of the RGB camera. Our framework eases calibration and enables future applications to use combined range and colored data.

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“…For this reason, it is considered as the vehicle for minimal invasive surgery [18]. Since a monocular video camera can provide only 2D images, which are different from what the physician can see from the actual sites of the body, efforts have been spent on the development of stereo endoscopy systems [6,18,22]. A stereo endoscope can capture stereo images, which can be viewed by a physician through special glasses and/or displays [6,12].…”

Section: Introductionmentioning

confidence: 99%

“…Since a monocular video camera can provide only 2D images, which are different from what the physician can see from the actual sites of the body, efforts have been spent on the development of stereo endoscopy systems [6,18,22]. A stereo endoscope can capture stereo images, which can be viewed by a physician through special glasses and/or displays [6,12]. Yet, due to practical limitations (e.g., the required small size of the endoscope resulting in a very small baseline for the stereo lens), stereo videos captured from such systems is not comfortable to view and such systems have not been widely adopted.…”

Section: Introductionmentioning

confidence: 99%