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Article | REF: MED920 V1

Endoscopic image analysis. Image mosaicing

Authors: Christian DAUL, Didier WOLF

Publication date: August 10, 2018 | Lire en français

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    4. Mosaicing of endoscopic images

    The aim of image mosaicing is to place all the information seen in the different images in a common frame of reference (that of the mosaic), in order to obtain a panoramic image (or map) without data redundancy and with a significantly larger field of view than that of individual images.

    Image mosaicing is generally performed in several stages. The aim of the first mosaicking stage is to find the location of the pixels in each image of a video sequence within the mosaic frame. In the resulting map, there are usually alignment errors perceptible through texture discontinuities. An additional step is therefore aimed at slightly modifying the position of pixels in the map simultaneously, in order to correct alignment errors. The images of a video sequence are acquired from highly variable viewpoints which, in the field of endoscopy,...

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