Simple method of the 3-D shape measurement by system of fibre-optic fringe projection

Merta, I.; Jaroszewicz, Leszek R.; Świłło, S.

doi:10.1117/12.640873

Cited by 1 publication

(1 citation statement)

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“…Due to limited working volume, many SI endoscopic designs do not consider the baseline between projector and the camera but use a common beam-splitter between them, resulting in nonuniform depth accuracy and restricted range of 3-D measurement, 22 or providing only perceptual depth measurement 23 , 24 . Most efforts applying SI in confined spaces, such as fiber or endoscope, 25 – 27 have been reported with static and nontissue objects 28 . Some highlighted studies of 3-D reconstruction on tissue use high-power light grids with unique spectrum and triangulate the light-of-sight rays from the light source to the camera on tissue features 29 – 31 with submillimeter accuracy.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a laparoscopic structured-illumination three-dimensional imaging system for guiding reconstructive bowel anastomosis

Nguyen

Wang

et al. 2018

J. Biomed. Opt.

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This paper reports the development and system analysis of a laparoscopic system based on structured illumination technique capable of three-dimensional (3-D) reconstruction of porcine intestine during surgical anastomosis (connection of tubular structures). A calibration target is used to validate the system performance and results show a depth of field of 20 mm with an accuracy of 0.008 mm and precision of 0.25 mm. The imaging system is used to reconstruct a quantitative 3-D depth measurement of ex vivo porcine bowel tissues to mimic an end-to-end bowel anastomosis scenario. We demonstrate that the system can detect a suture in the tissue and map homogeneous surfaces of the intestine with different tissue pigments, affirming the feasibility for depth quantization for guiding and assisting medical diagnostic decisions in anastomosis surgery.

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