Enhanced visualization of inner ear structures

Kazimierz Niemczyk; Tomasz Kucharski; Malgorzata Kujawinska; Antoni Bruzgielewicz

doi:10.1117/12.528194

13 July 2004 Enhanced visualization of inner ear structures

Kazimierz Niemczyk, Tomasz Kucharski, Malgorzata Kujawinska, Antoni Bruzgielewicz

Proceedings Volume 5324, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XI; (2004) https://doi.org/10.1117/12.528194
Event: Biomedical Optics 2004, 2004, San Jose, CA, United States

Abstract

Recently surgery requires extensive support from imaging technologies in order to increase effectiveness and safety of operations. One of important tasks is to enhance visualisation of quasi-phase (transparent) 3d structures. Those structures are characterized by very low contrast. It makes differentiation of tissues in field of view very difficult. For that reason the surgeon may be extremly uncertain during operation. This problem is connected with supporting operations of inner ear during which physician has to perform cuts at specific places of quasi-transparent velums. Conventionally during such operations medical doctor views the operating field through stereoscopic microscope. In the paper we propose a 3D visualisation system based on Helmet Mounted Display. Two CCD cameras placed at the output of microscope perform acquisition of stereo pairs of images. The images are processed in real-time with the goal of enhancement of quasi-phased structures. The main task is to create algorithm that is not sensitive to changes in intensity distribution. The disadvantages of existing algorithms is their lack of adaptation to occuring reflexes and shadows in field of view. The processed images from both left and right channels are overlaid on the actual images exported and displayed at LCD's of Helmet Mounted Display. A physician observes by HMD (Helmet Mounted Display) a stereoscopic operating scene with indication of the places of special interest. The authors present the hardware ,procedures applied and initial results of inner ear structure visualisation. Several problems connected with processing of stereo-pair images are discussed.

Citation Download Citation

Kazimierz Niemczyk, Tomasz Kucharski, Malgorzata Kujawinska, and Antoni Bruzgielewicz "Enhanced visualization of inner ear structures", Proc. SPIE 5324, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XI, (13 July 2004); https://doi.org/10.1117/12.528194

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KEYWORDS

Image processing

Ear

Surgery

Head-mounted displays

Image enhancement

Linear filtering

Visualization

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