Diff for 'HiRISE'
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Editor:
mvolat
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Time:
2019-07-09 08:29:59z
Comment:
Add image processing section
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Editor:
mvolat
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2024-08-27 09:03:40z
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{{https://upload.wikimedia.org/wikipedia/commons/2/2b/HiRISE_Flight_Structure.jpg||align="right",width="240"}} |
{{https://upload.wikimedia.org/wikipedia/commons/2/2b/HiRISE_Flight_Structure.jpg||width="240"}} |
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| <<TableOfContents()>> | == Instrument description == The HiRISE camera has 3 different color filtered CCDs: red (“RED”) from 570-830 nm, blue-green (“BG”) less than 580 nm and near-infrared (“IR”) greater than 790 nm. The high-resolution color images enable to distinguish the composition and albedo heterogeneities directly correlated to the geomorphology, complementary to the mineralogic results from the CRISM, HRSC, OMEGA and THEMIS instruments. The RED detectors provide a wide image used for geomorphologic analysis and for stereoanalysis, while the additional detectors are used to create false-color imaging of the central of the swath only (20% of the RED swath width). == Downloading and processing HIRISE data == === Imagery === ==== Tutorial ==== From the “Maps” tab, zoom-in on your region of interest. You can swith to the THEMIS or CTX mosaic for more precision, and then display the HiRISE layer. You can see the HiRISE products footprints that appear in pink. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace. {{/select_hirise.jpg||width="800"}} In the "Workspace" tab, you will see your product selection. You will notice that there is two type of subproducts: the RED channel with a higher coverage products and the COLOR products (see "Instrument description for more information about coverage and color information). HiRISE color images are downloaded calibrated and with georeferencement, there is no more processing on this data type. HiRISE RED images can be processed in different steps: first a raw product (EDR) is downloaded. It can be processed into a calibrated RDR product. The last step reproject and georeference the RDR product into a MRDR image. Check the product status: if some data is not already done yet, select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed. Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section. ==== Pipeline information ==== The pipeline for the topographic mapping derived from HiRISE images uses both the USGS ISIS system (the ISIS 3 system). === MarsSI Digital Elevation Models === ==== Tutorial ==== From the “Maps” tab, zoom-in on your region of interest. You can swith to the THEMIS or CTX mosaic for more precision, and then display the HiRISE-stereo layer. You can see the HiRISE-DEM products footprints that appear in blue. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace. {{/select_hirisedem.jpg||width="800"}} In the "Workspace" tab, you will see your product selection. Check the product status: if some data is not already done yet, select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed. Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section. ==== Pipeline information ==== {{{#!wiki warning The DEM footprints have been created automatically based on the percentage of intersection and the difference in emission angle between the two input images. Please be advised that DEM creation process can fail due to other parameters. See [[DemErrors]] for more information. }}} The HiRISE DEM images created by MarsSI are generated using the NASA AMES Stereo Pipeline ([[http://ti.arc.nasa.gov/tech/asr/intelligent-robotics/ngt/stereo/%29|http://ti.arc.nasa.gov/tech/asr/intelligent-robotics/ngt/stereo/)]]. === HiRISE Team Digital Elevation Models === ==== Tutorial ==== From the “Maps” tab, zoom-in on your region of interest. You can swith to the THEMIS or CTX mosaic for more precision, and then display the HiRISE-team-DTM layer. You can see the HiRISE-DEM products footprints that appear in light blue. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace. {{/select_hiriseteamdtm.jpg||width="800"}} In the "Workspace" tab, you will see your product selection. Check the product status: if some data is not already done yet (for HiRISE team DEMs, this only means downloading it), select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed. Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section. ==== Pipeline information ==== This dataset was created using the commercial stereogrammetric software SOCET SET and tuned by hand by the HiRISE team. The DTMs have a 1-meter spatial resolution and 25 cm vertical precision. For more details about the process used to create HiRISE DTMs, see [[http://onlinelibrary.wiley.com/wol1/doi/10.1029/2007JE003000/full|Kirk, R.L. et al. (2008)]]. |
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| The HiRISE camera has 3 different color filtered CCDs: red (“RED”) from 570-830 nm, blue-green (“BG”) less than 580 nm and near-infrared (“IR”) greater than 790 nm. The high-resolution color images enable to distinguish the composition and albedo heterogeneities directly correlated to the geomorphology, complementary to the mineralogic results from the CRISM, HRSC, OMEGA and THEMIS instruments. The RED detectors provide a wide image used for geomorphologic analysis and for stereoanalysis, while the additional detectors are used to create false-color imaging of the central of the swath only (20% of the RED swath width). | === Images === |
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| Data file description: * `PSP_005000_1000_RED.JP2` (grayscale mosaic of all RED-filter channels) * `PSP_005000_1000_COLOR.JP2` (IR, RED, BG 3-color product over center 20% of the RED swath width) |
==== Directory content ==== |
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| Each JP2 image also has a PDS label (.lbl) providing useful information about the observation such as map projection and viewing information. | The content of an HiRISE product directory in MarsSI should look like: |
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| == Processing HIRISE data == === CTX Imagery === |
ESP_011261_1960_RED*_*.IMG:: :: raw red data (EDR), multiple files ESP_011261_1960_RED_RDR.cub:: :: reflectance (irradiance/solar flux or I/F) called Radiometric Data Record, stitched in a single image ESP_011261_1960_RED_MRDR.tif:: :: projected and georeferenced image from the RDR ESP_011261_1960_COLOR.tif:: :: projected and georeferenced color image (RDRV11) |
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| The pipeline for the topographic mapping derived from HiRISE images uses both the USGS ISIS system (the ISIS 3 system) and the commercial stereogrammetric software SOCET SET. The DTMs have a 1-meter spatial resolution and 25 cm vertical precision. For more details about the process used to create HiRISE DTMs, see [[http://onlinelibrary.wiley.com/wol1/doi/10.1029/2007JE003000/full|Kirk, R.L. et al. (2008)]]. | ==== Georeferencing ==== |
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| From the “Maps” tab, zoom-in on your region of interest, you can display the THEMIS mosaic for more precision, and then display the HiRISE layer. You get all HiRISE stamps that appear in blue. The stamps are regularly updated to take into account new data. You can use the “Select” button to choose the stamp you desire. You can choose several stamps by clicking several stamps, or by dragging your mouse to select adjacent stamps. You can also use the “Search” button for more options. | Due to the ISIS format, probably only some GIS software will be able to display RDR products, but only the MRDR products have georeferencing and can be displayed in a true geographic view. |
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| {{attachment:view_hirise_layer.png||width="800"}} | === MarsSI Digital Elevation Models === |
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| To add your desired stamps to your cart click on “Add” in the “Cart” window, and go to the “Workspace” tab. Your HiRISE image appears in the window “Data to process”. If not, you may already have processed it yourself, or someone else may have processed it, then it may already be in the “Data processed” window. If the image has not been processed, you will have to go through several steps: | ==== Directory content ==== |
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| 1. Download the HiRISE EDR image (rawdata) to the MarsSI server by clicking on the EDR image and the “Process” button in the “Data to process” window. This will take a few minutes. 2. When the first step is done, you can create a calibrated RDR image: click on the proposed RDR image in the “Data to process” window and on the “Process” button. This will take another few minutes, depending on the length of the observation. 3. Project the image by processing the proposed MRDR image in the “Data to process” window. This will take more time than the previous processes, another few minutes. |
The content of an CTX-DEM product directory in MarsSI should look like: |
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| When these different steps are done, the MRDR image is waiting for you in the “Data processed” window and you can copy it to your SFTP partition. | HI_022288_2035_022354_2035-ALIGN-DEM.tif:: :: DEM product, aligned to MOLA HI_022288_2035_022354_2035-ALIGN-DRG.tif:: :: left image aligned and orthorectified along the DEM at its resolution Older directory could include non-aligned DEM/imagery. === HiRISE Team Digital Elevation Models === ==== Directory content ==== .. |
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| * HiRISE instrument and data website: http://hirise.lpl.arizona.edu * HiRISE DTM creation explanation: http://www.uahirise.org/dtm/about.php * HiRISE instrument description paper: McEwen, A. et al. (2007). J. Geophys. Res., 112, E05S02, doi:10.1029/2005JE002605. * HiRISE DTM description paper: Kirk, R.L. et al. (2008). J. Geophys. Res., 113, E00A24, doi:10.1029/2007JE003000. |
* HiRISE instrument and data website: [[http://hirise.lpl.arizona.edu]] * HiRISE DTM creation explanation: [[http://www.uahirise.org/dtm/about.php]] * HiRISE instrument description paper: [[McEwen]], A. et al. (2007). J. Geophys. Res., 112, [[E05S02]], doi:10.1029/2005JE002605. * HiRISE DTM description paper: Kirk, R.L. et al. (2008). J. Geophys. Res., 113, [[E00A24]], doi:10.1029/2007JE003000. * USGS ISIS software: [[https://isis.astrogeology.usgs.gov/]] * Ames Stereo Pipeline: [[https://ti.arc.nasa.gov/tech/asr/groups/intelligent-robotics/ngt/stereo/]] * MarsSI DEM workflow article: [[https://doi.org/10.1016/j.pss.2022.105552]] |
The High Resolution Imaging Science Experiment (HiRISE) is a telescope working in orbit in the visible wavelengths and producing high resolution images resolving surface details down to 1-meter size (0.25 to 1.3 m/px). The images enable to study for instance the martian geomorphology but also seasonal surface changes.
Instrument description
The HiRISE camera has 3 different color filtered CCDs: red (“RED”) from 570-830 nm, blue-green (“BG”) less than 580 nm and near-infrared (“IR”) greater than 790 nm. The high-resolution color images enable to distinguish the composition and albedo heterogeneities directly correlated to the geomorphology, complementary to the mineralogic results from the CRISM, HRSC, OMEGA and THEMIS instruments. The RED detectors provide a wide image used for geomorphologic analysis and for stereoanalysis, while the additional detectors are used to create false-color imaging of the central of the swath only (20% of the RED swath width).
Downloading and processing HIRISE data
Imagery
Tutorial
From the “Maps” tab, zoom-in on your region of interest. You can swith to the THEMIS or CTX mosaic for more precision, and then display the HiRISE layer. You can see the HiRISE products footprints that appear in pink. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace.
In the "Workspace" tab, you will see your product selection. You will notice that there is two type of subproducts: the RED channel with a higher coverage products and the COLOR products (see "Instrument description for more information about coverage and color information). HiRISE color images are downloaded calibrated and with georeferencement, there is no more processing on this data type. HiRISE RED images can be processed in different steps: first a raw product (EDR) is downloaded. It can be processed into a calibrated RDR product. The last step reproject and georeference the RDR product into a MRDR image.
Check the product status: if some data is not already done yet, select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed.
Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section.
Pipeline information
The pipeline for the topographic mapping derived from HiRISE images uses both the USGS ISIS system (the ISIS 3 system).
MarsSI Digital Elevation Models
Tutorial
From the “Maps” tab, zoom-in on your region of interest. You can swith to the THEMIS or CTX mosaic for more precision, and then display the HiRISE-stereo layer. You can see the HiRISE-DEM products footprints that appear in blue. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace.
In the "Workspace" tab, you will see your product selection.
Check the product status: if some data is not already done yet, select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed.
Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section.
Pipeline information
The DEM footprints have been created automatically based on the percentage of intersection and the difference in emission angle between the two input images. Please be advised that DEM creation process can fail due to other parameters. See DemErrors for more information.
The HiRISE DEM images created by MarsSI are generated using the NASA AMES Stereo Pipeline (http://ti.arc.nasa.gov/tech/asr/intelligent-robotics/ngt/stereo/).
HiRISE Team Digital Elevation Models
Tutorial
From the “Maps” tab, zoom-in on your region of interest. You can swith to the THEMIS or CTX mosaic for more precision, and then display the HiRISE-team-DTM layer. You can see the HiRISE-DEM products footprints that appear in light blue. Use the “Select” button to choose the products you desire over an area. Use the right-click context menu to add your selection to your workspace.
In the "Workspace" tab, you will see your product selection.
Check the product status: if some data is not already done yet (for HiRISE team DEMs, this only means downloading it), select the rows you would like to request by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Process" action on the top of the workspace table. You can check more information about the processing in the job tab if needed.
Once all the data you would like is done, select entries by ticking the input on the left column (you can use the "Select all" button to select all visible products) and click on the "Copy" action to request a copy of the data in your personal directory. You can then proceed to download products as described in the SFTP section.
Pipeline information
This dataset was created using the commercial stereogrammetric software SOCET SET and tuned by hand by the HiRISE team. The DTMs have a 1-meter spatial resolution and 25 cm vertical precision. For more details about the process used to create HiRISE DTMs, see Kirk, R.L. et al. (2008).
Data description
Images
Directory content
The content of an HiRISE product directory in MarsSI should look like:
- ESP_011261_1960_RED*_*.IMG
- raw red data (EDR), multiple files
- ESP_011261_1960_RED_RDR.cub
- reflectance (irradiance/solar flux or I/F) called Radiometric Data Record, stitched in a single image
- ESP_011261_1960_RED_MRDR.tif
- projected and georeferenced image from the RDR
- ESP_011261_1960_COLOR.tif
- projected and georeferenced color image (RDRV11)
Georeferencing
Due to the ISIS format, probably only some GIS software will be able to display RDR products, but only the MRDR products have georeferencing and can be displayed in a true geographic view.
MarsSI Digital Elevation Models
Directory content
The content of an CTX-DEM product directory in MarsSI should look like:
- HI_022288_2035_022354_2035-ALIGN-DEM.tif
- DEM product, aligned to MOLA
- HI_022288_2035_022354_2035-ALIGN-DRG.tif
- left image aligned and orthorectified along the DEM at its resolution
Older directory could include non-aligned DEM/imagery.
HiRISE Team Digital Elevation Models
Directory content
.
References
- HiRISE instrument and data website: http://hirise.lpl.arizona.edu
- HiRISE DTM creation explanation: http://www.uahirise.org/dtm/about.php
- HiRISE instrument description paper: McEwen, A. et al. (2007). J. Geophys. Res., 112, E05S02, doi:10.1029/2005JE002605.
- HiRISE DTM description paper: Kirk, R.L. et al. (2008). J. Geophys. Res., 113, E00A24, doi:10.1029/2007JE003000.
- USGS ISIS software: https://isis.astrogeology.usgs.gov/
- Ames Stereo Pipeline: https://ti.arc.nasa.gov/tech/asr/groups/intelligent-robotics/ngt/stereo/
- MarsSI DEM workflow article: https://doi.org/10.1016/j.pss.2022.105552