Changes between Version 30 and Version 31 of GSoC/2016/Additional_segmentation_algorithms/weekly_report


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Timestamp:
May 30, 2016, 7:42:09 PM (8 years ago)
Author:
hao2309
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  • GSoC/2016/Additional_segmentation_algorithms/weekly_report

    v30 v31  
    3838=== What did you get done this week? ===
    3939* Further discussion about the algorithm mechanism
    40 1. Edge effect:the moving window have to be re-size when it near the edge or corner of the full image. Mentor has given the solution in pseudo-code:
     401. Edge effect:
     41Moving window have to be re-sized when it near the edge or corner of the full image. Mentor has given the solution in pseudo-code:
    4142{{{
    4243      # figure out moving window, clip to region if necessary
    … …  
    5758Earlier mean-shift algorithm uses fixed bandwidth. Fixed bandwidth could result in either over-segment or under-segment. In the literature of Deng et al., 2015  and [http://doi.org/10.1049/iet-ipr.2013.0195 Zhang et al., 2014], each paper proposed an adaptive bandwidth method. [http://doi.org/10.1049/iet-ipr.2014.0393 Zhou et al., 2015] proposed another method, which use smaller bandwidth at first to over-segment the image, then use image clustering, region-based mode merging again to refine the result.
    58593. The convergence condition:
     60Set an epsilon value, e.g. 0.001. If the pixel value difference is less than epsilon between iterations, the pixel is consider as convergent.
    5961* Got the access for GRASS-addons-svn and [https://trac.osgeo.org/grass/browser/sandbox/bo/i.segment.gsoc2016 sandbox]
    6062