Perseverance Imagery, technical discussion of processing, cameras, etc. |
Perseverance Imagery, technical discussion of processing, cameras, etc. |
Feb 22 2021, 02:26 AM
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#1
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Member Group: Members Posts: 219 Joined: 14-November 11 From: Washington, DC Member No.: 6237 |
Putting this here, for reference as the payload of the JSON feed link for Perseverence raws (see source in other thread here)
https://mars.nasa.gov/rss/api/?feed=raw_ima...;&extended= Looks like there's a ton of good data in addition to just the (PNG! Bayer color separated!) images This is for the first image shown on the page at the moment. CODE "images": [ { "extended": { "mastAz":"UNK", "mastEl":"UNK", "sclk":"667129493.453", "scaleFactor":"4", "xyz":"(0.0,0.0,0.0)", "subframeRect":"(1,1,1280,960)", "dimension":"(1280,960)" }, "sol":2, "attitude":"(0.415617,-0.00408664,-0.00947025,0.909481)", "image_files": { "medium":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01_800.jpg", "small":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01_320.jpg", "full_res":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01.png", "large":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01_1200.jpg" }, "imageid":"RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01", "camera": { "filter_name":"UNK", "camera_vector":"(-0.7838279435884001,0.600143487448691,0.15950407306054173)", "camera_model_component_list":"2.0;0.0;(46.176,2.97867,720.521);(-0.701049,0.00940617,0.713051);(8.39e-06,0.0168764,-0.00743155);(-0.00878744,-0.00869157,-0.00676256);(-1.05782,-0.466472,-0.724517);(-0.702572,0.0113481,0.711523);(-448.981,-528.002,453.359)", "camera_position":"(-1.05782,-0.466472,-0.724517)", "instrument":"REAR_HAZCAM_RIGHT", "camera_model_type":"CAHVORE" }, "caption":"NASA's Mars Perseverance rover acquired this image of the area in back of it using its onboard Rear Right Hazard Avoidance Camera. \n\n This image was acquired on Feb. 21, 2021 (Sol 2) at the local mean solar time of 15:37:11.", "sample_type":"Full", "date_taken_mars":"Sol-00002M15:37:11.985", "credit":"NASA/JPL-Caltech", "date_taken_utc":"2021-02-21T02:16:26Z", "json_link":"https://mars.nasa.gov/rss/api/?feed=raw_images&category=mars2020&feedtype=json&id=RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01", "link":"https://mars.nasa.gov/mars2020/multimedia/raw-images/?id=RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01", "drive":"52", "title":"Mars Perseverance Sol 2: Rear Right Hazard Avoidance Camera (Hazcam)", "site":1, "date_received":"2021-02-21T23:12:58Z" }, (with syntax color): Here's hoping that one of you skilled characters can make good use... |
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Feb 23 2021, 12:17 PM
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#2
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Junior Member Group: Members Posts: 95 Joined: 11-January 07 From: Amsterdam Member No.: 1584 |
A small Perseverance update for Marslife, implementing the camera pointing data is a bit troublesome.
It suffers from a hit-and-miss accuracy. -------------------- |
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Feb 23 2021, 02:40 PM
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#3
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Member Group: Members Posts: 219 Joined: 14-November 11 From: Washington, DC Member No.: 6237 |
So cool!
Maybe they're still refining which way is up... lots of local coordinate frames to sort out and probably need some time (and the sun shots it looks like they just took, and some 3d processing of the local area, and some radio ranging) to get absolute position & orientation info. The instrument position details will certainly be different vs MSL. And in my skim of the data it looked to me like they re-jiggered some of the pointing data formats, did you see that too? Not sure which parts you're using. |
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