1 Ocak 2014 Dergi makalesi Açık Erişim

Guler, R. A.; Tari, S.; Unal, G.

JSON

{
  "conceptrecid": "61170", 
  "created": "2021-03-16T01:09:44.093205+00:00", 
  "doi": "10.1137/140956117", 
  "files": [
    {
      "bucket": "79228273-dce4-4a74-81bd-69039af08001", 
      "checksum": "md5:5d7bbf70421024447c40f1503ac0245b", 
      "key": "bib-6b8a9e18-f90a-41a9-924b-813de09ea425.txt", 
      "links": {
        "self": "https://aperta.ulakbim.gov.tr/api/files/79228273-dce4-4a74-81bd-69039af08001/bib-6b8a9e18-f90a-41a9-924b-813de09ea425.txt"
      }, 
      "size": 136, 
      "type": "txt"
    }
  ], 
  "id": 61171, 
  "links": {
    "badge": "https://aperta.ulakbim.gov.tr/badge/doi/10.1137/140956117.svg", 
    "bucket": "https://aperta.ulakbim.gov.tr/api/files/79228273-dce4-4a74-81bd-69039af08001", 
    "doi": "https://doi.org/10.1137/140956117", 
    "html": "https://aperta.ulakbim.gov.tr/record/61171", 
    "latest": "https://aperta.ulakbim.gov.tr/api/records/61171", 
    "latest_html": "https://aperta.ulakbim.gov.tr/record/61171"
  }, 
  "metadata": {
    "access_right": "open", 
    "access_right_category": "success", 
    "communities": [
      {
        "id": "tubitak-destekli-proje-yayinlari"
      }
    ], 
    "creators": [
      {
        "affiliation": "Sabanci Univ, Fac Engn & Nat Sci, TR-34956 Istanbul, Turkey", 
        "name": "Guler, R. A."
      }, 
      {
        "affiliation": "METU, Dept Comp Engn, TR-06800 Ankara, Turkey", 
        "name": "Tari, S."
      }, 
      {
        "affiliation": "Sabanci Univ, Fac Engn & Nat Sci, TR-34956 Istanbul, Turkey", 
        "name": "Unal, G."
      }
    ], 
    "description": "We present a novel perspective on shape characterization using the screened Poisson equation. We discuss that the effect of the screening parameter is a change of measure of the underlying metric space. Screening also indicates a conditioned random walker biased by the choice of measure. A continuum of shape fields is created by varying the screening parameter or, equivalently, the bias of the random walker. In addition to creating a regional encoding of the diffusion with a different bias, we further break down the influence of boundary interactions by considering a number of independent random walks, each emanating from a certain boundary point, whose superposition yields the screened Poisson field. Probing the screened Poisson equation from these two complementary perspectives leads to a high-dimensional hyperfield: a rich characterization of the shape that encodes global, local, interior, and boundary interactions. To extract particular shape information as needed in a compact way from the hyperfield, we apply various decompositions either to unveil parts of a shape or parts of a boundary or to create consistent mappings. The latter technique involves lower-dimensional embeddings, which we call screened Poisson encoding maps (SPEM). The expressive power of the SPEM is demonstrated via illustrative experiments as well as a quantitative shape retrieval experiment over a public benchmark database on which the SPEM method shows a high-ranking performance among the existing state-of-the-art shape retrieval methods.", 
    "doi": "10.1137/140956117", 
    "has_grant": false, 
    "journal": {
      "issue": "4", 
      "pages": "2558-2590", 
      "title": "SIAM JOURNAL ON IMAGING SCIENCES", 
      "volume": "7"
    }, 
    "license": {
      "id": "cc-by"
    }, 
    "publication_date": "2014-01-01", 
    "relations": {
      "version": [
        {
          "count": 1, 
          "index": 0, 
          "is_last": true, 
          "last_child": {
            "pid_type": "recid", 
            "pid_value": "61171"
          }, 
          "parent": {
            "pid_type": "recid", 
            "pid_value": "61170"
          }
        }
      ]
    }, 
    "resource_type": {
      "subtype": "article", 
      "title": "Dergi makalesi", 
      "type": "publication"
    }, 
    "title": "Screened Poisson Hyperfields for Shape Coding"
  }, 
  "owners": [
    1
  ], 
  "revision": 1, 
  "stats": {
    "downloads": 10.0, 
    "unique_downloads": 10.0, 
    "unique_views": 47.0, 
    "version_downloads": 10.0, 
    "version_unique_downloads": 10.0, 
    "version_unique_views": 46.0, 
    "version_views": 50.0, 
    "version_volume": 1360.0, 
    "views": 51.0, 
    "volume": 1360.0
  }, 
  "updated": "2021-03-16T01:09:44.136023+00:00"
}