AI SearchFusion of stereo-optical and interferometric SAR DEMs (Record no. 48301)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04329nas|a2200469 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818114727.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 060223s2005 th uu|m rtt 0| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11980618 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.RS-05-02 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Karkee, Manoj |
| 245 10 - TITLE STATEMENT | |
| Title | Fusion of stereo-optical and interferometric SAR DEMs |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2005 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 85 leaves : |
| Other physical details | ill., maps |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. RS-05-02 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 2005 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Spaceborne remote sensing is being used widely for decades to generate Digital Elevation Models (DEMs). Synthetic Aperture Radar Interferometry (InSAR) and Optical Stereoscopy are the two major satellite techniques of the topographic measurement. Both of these methods of generating DEMs have their own limitations. InSAR suffers from layovers, shadows and temporal decorrelations whereas image matching in stereoscopy suffers from cloud cover, radiometric variation and low-texture. These inherent problems cause voids and interpolated data in final product. This thesis presents a way of assessing accuracy and error phenomenon of both InSAR and Stereo-optical DEMs. Error statistics, error histogram and image profiles has been computed and compared with the reference DEM parameters. It was found that the overall quality of InSAR DEM is better than the Stereo-optical DEM. Moreover, InSAR DEM gives generally a bit higher elevation than reference DEM whereas stereo-optical DEM gives quite lower elevation. All of these assessments were carried out with SRTM and ASTER DEMs, former an InSAR product and later an optical product and for a test site of ✹60 KM2 located in Central region of Nepal having fairly complex topography. This thesis finally presents an approach of DEM fusion to improve the overall quality and applicability of satellite DEMs. Algorithm starts with filling voids in the DEMs by taking slopes and aspects from another DEM and using elevation of surrounding pixels to calculate the absolute elevation of void pixels. In the next step, higher frequency components of optical DEM and lower frequency components of InSAR DEMs are filtered out, as they are more erroneous respectively. Filtered DEMs are then added to generate fused DEM. The accuracy of resulting DEMs was assessed in terms of error map and error statistics. Fused DEM shows up to 45% improvement in accuracy measures. Thesis has also addressed the way of modeling systematic error in the fused DEM and handling ASTER relative DEM. The approach is promising to improve the accuracy and completeness meanwhile maintaining the resolution to the best of participating DEMs. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Remote sensing |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Interferometry |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Optical measurements |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Topographic maps |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kusanagi, Michiro, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Borne, Frederic, |
| Relator term | Examination committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Souris, Marc, |
| Relator term | Examination committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of Japan, |
| Relator term | Scholarship donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. RS-05-02 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B09904">http://203.159.5.9/ait-thesis/detail.php?q=B09904</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11980618 |
| b | mnait |
| c | u |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 241106 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 060203 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | u |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120591291 |
| CREATED | CREATED : 2006-03-02 |
| RECORD Id | RECORD # : i12474915 |
| LPATRON | LPATRON : 1020465 |
| LCHKIN | LCHKIN : 2009-05-08 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 2 |
| -- | TOT RENEW : 7 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120591317 |
| CREATED | CREATED : 2006-03-02 |
| RECORD Id | RECORD # : i12474927 |
| LPATRON | LPATRON : 1025143 |
| LCHKIN | LCHKIN : 2014-11-10 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 6 |
| -- | TOT RENEW : 6 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120238182 |
| CREATED | CREATED : 2016-03-30 |
| RECORD Id | RECORD # : i12912955 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050121010333 |
| CREATED | CREATED : 2020-02-11 |
| RECORD Id | RECORD # : i13306844 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.RS-05-02 | 30050120591291 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.RS-05-02 | 30050120591317 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.RS-05-02 | 30050120238182 | 18/08/2026 | 18/08/2026 | 40-Archives | ||||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | 50.00 | AIT Thesis no.RS-05-02 | 30050121010333 | 18/08/2026 | 3 | 18/08/2026 | 20-AIT Publication |