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Pembuatan Model Permukaan Digital dari Sumber Citra ASTER ...

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DAFTAR GAMBAR<br />

Gambar I.1. Diagram skematik linear array sensor.............................................. 4<br />

Gambar I.2. Subsistem VNIR pada sistem sensor <strong>ASTER</strong>................................... 6<br />

Gambar I.3. Geometri citra <strong>ASTER</strong>...................................................................... 6<br />

Gambar I.4. Korelasi silang 2 dimensi.................................................................. 8<br />

Gambar I.5. Estimasi koordinat sub-piksel............................................................ 10<br />

Gambar I.6. Penentuan elevasi berdasarkan paralaks pada citra <strong>ASTER</strong>............. 12<br />

Gambar I.7. Proses penghitungan median filter.................................................... 15<br />

Gambar I.8. Kurva distribusi normal..................................................................... 19<br />

Gambar II.1. Diagram alir penelitian...................................................................... 25<br />

Gambar II.2. Properties dan Events dalam Object Inspector Delphi..................... 27<br />

Gambar II.3. Code Editor pada Delphi................................................................... 28<br />

Gambar II.4. Ukuran citra <strong>ASTER</strong> Level-1B full scene......................................... 29<br />

Gambar II.5. Fasilitas New File Builder pada ENVI.............................................. 30<br />

Gambar II.6. Distribusi titik GCP dan titik ikat yang digunakan........................... 32<br />

Gambar II.7. Tampilan awal program DEMCreator 4............................................ 34<br />

Gambar II.8. Bagian pengaturan proses dalam program DEMCreator 4............... 35<br />

Gambar II.9. Daerah tepi yang tidak dapat dihitung nilai korelasi silangnya......... 36<br />

Gambar II.10. <strong>Citra</strong> dengan noise dan citra yang telah dihilangkan noise-nya........ 37<br />

Gambar II.11. Bagian pengaturan lanjut DEMCreator 4.......................................... 38<br />

Gambar II.12. Pemilihan GCP untuk proses georeferensi........................................<br />

Gambar II.13. Fasilitas Image to Map Registration untuk melakukan georeferensi<br />

42<br />

model.................................................................................................<br />

Gambar III.1. Selisih elevasi titik cek pada model terhadap elevasi titik cek pada<br />

peta rupabumi....................................................................................<br />

ix<br />

43<br />

51

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