[SLS-DC] 124 final version ready for review

Wed Sep 1 15:43:20 UTC 2021

Hi All,

There are some slight updates to the 124 draft uploaded to the CWE (particularly for the Dt and Xt definition for eqs. 14 and 16).
https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-01091510_wong_evans_hernandez.docx<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-01091510_wong_evans_hernandez.docx&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837089638%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=bBQATRLIBoESJFMmjo4wMU%2B%2F2MsNu8490dnBmLnLo1w%3D&reserved=0>

Please let me know by this Friday if you need more time to review it.

Best,
Mark Wong
NASA GSFC Flight Microwave & Telecommunication Systems Branch
Phone: 1-301-286-6549

From: David.Evans at esa.int <David.Evans at esa.int>
Sent: Wednesday, September 1, 2021 9:24 AM
To: Miguel Hernández <Miguel.Hernandez at uab.cat>
Cc: Wong, Englin (GSFC-5670) <mark.wong at nasa.gov>; Bruno Mickael <Mickael.Bruno at cnes.fr>
Subject: Re: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review

Hi Miguel,

I updated that and have loaded the updated document in word and pdf and a pdf with mark up to the CWE

https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-01091510_wong_evans_hernandez.docx<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-01091510_wong_evans_hernandez.docx&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837089638%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=bBQATRLIBoESJFMmjo4wMU%2B%2F2MsNu8490dnBmLnLo1w%3D&reserved=0>

https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-01091510_wong_evans_hernandez.pdf<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-01091510_wong_evans_hernandez.pdf&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837099592%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=TaD8bN8acqeIlPzGwjvWAVmF8r2P6%2B1w5Bqm%2FfB%2BLcs%3D&reserved=0>

https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-01091510_wong_evans_hernandez_markup.pdf<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-01091510_wong_evans_hernandez_markup.pdf&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837109543%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ihIPF8LgqULsUQlfC%2FKA%2BsULTAajwwLWiL2t76yUokI%3D&reserved=0>

@Mark do you have any more comments? If not I think it is good to go. What are the next steps?

Best regards,
Dave

From:        "Miguel Hernández" <Miguel.Hernandez at uab.cat<mailto:Miguel.Hernandez at uab.cat>>
To:        "David Evans" <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Cc:        "Wong, Englin (GSFC-5670)" <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>, "Bruno Mickael" <Mickael.Bruno at cnes.fr<mailto:Mickael.Bruno at cnes.fr>>
Date:        01/09/2021 08:45
Subject:        Re: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review
________________________________

Thank you Dave,

I have now been able to look at the highlighted differences.

My only comment is about eq 20, case 2. The list of valid values could be written in ascending order, e.g., {max(0, t-V_t), max(0, t-V_t) + 1, ..., t-1, t}. The reverse order would be fine by me too, but values should be sorted (unlike now, where it says {t-1, t, ..., max(0, t-V_t)}, which I think it's not easily interpretable).  In eq 14, the order was from greater to lower; I suggest we are consistent in all equations giving sequences of time points.

Other than that, I'm satisfied with the draft as it is.

Kind regards,
--
Miguel Hernández-Cabronero
http://deic.uab.es/~mhernandez/<https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdeic.uab.es%2F~mhernandez%2F&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837109543%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=4gO6xxbQ6bpGFYQ%2F6W0EFDEmAkP00igzuMCS3rEg4Qk%3D&reserved=0>
Group on Interactive Coding of Images (GICI)
Department of Information and Communications Engineering (dEIC)
Universitat Autònoma de Barcelona (UAB)

On Wed, Sep 1, 2021 at 6:50 AM <David.Evans at esa.int<mailto:David.Evans at esa.int>> wrote:
Hi Miguel,

Here is a a pdf with the comments and updates. We are only discussing the changes to the note on  equation 14 and equation 16 itself.

Best regards,
Dave

From:        "Miguel Hernández" <Miguel.Hernandez at uab.cat<mailto:Miguel.Hernandez at uab.cat>>
To:        "David Evans" <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Cc:        "Wong, Englin (GSFC-5670)" <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>, "Bruno Mickael" <Mickael.Bruno at cnes.fr<mailto:Mickael.Bruno at cnes.fr>>
Date:        31/08/2021 12:24
Subject:        Re: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review
________________________________

Dear David and Mark,

Thanks for your effort during summer. I confirm I only see the double t subindex in eq (16), and a few blank boxes at all in Dave's Aug 30's message.

I will be happy to review this again if you'd like me to.

In the interest of time and accuracy, would it be possible to get a PDF file with correct rendering and highlighted differences vs the last version we iterated?

Thank you very much, have a nice day.
--
Miguel Hernández-Cabronero
http://deic.uab.es/~mhernandez/<https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdeic.uab.es%2F~mhernandez%2F&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837119501%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=srQsP8%2BqH6Kn%2FEPoVNLUu9BoBvzNQ3HnAFr7m0kKOv4%3D&reserved=0>
Group on Interactive Coding of Images (GICI)
Department of Information and Communications Engineering (dEIC)
Universitat Autònoma de Barcelona (UAB)

On Mon, Aug 30, 2021 at 6:13 PM <David.Evans at esa.int<mailto:David.Evans at esa.int>> wrote:
The wonders of Microsoft!

>If this is correct, the notes for eq 14 "... (see section 4.2.3) for .

" might not be necessary since it is never been used.

DJE: It is used as it relates to how to calculate Ct which is then needed to calculate Vt (i.e. Vt = Rt + Ct). One can view Rt as a minimum for Vt while the maximum is 15. Ct is extra robustness, on top of Rt, that we get for free when the mask did not update in the cycles from t-Rt to t-Rt-Ct.

Best regards, Dave

From:        "Wong, Englin (GSFC-5670)" <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>
To:        "David.Evans at esa.int<mailto:David.Evans at esa.int>" <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Cc:        "Miguel Hernández" <Miguel.Hernandez at uab.cat<mailto:Miguel.Hernandez at uab.cat>>, "Bruno Mickael" <Mickael.Bruno at cnes.fr<mailto:Mickael.Bruno at cnes.fr>>
Date:        30/08/2021 17:56
Subject:        RE: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review
________________________________

Hi Dave,

Somehow I'm not seeing your comments on the uploaded version.

Now I see eq 16 is updated to from Vt to Rt and that indeed simplifies the equation.

If this is correct, the notes for eq 14 "... (see section 4.2.3) for .

" might not be necessary since it is never been used.

Best,

Mark Wong

NASA GSFC Flight Microwave & Telecommunication Systems Branch

Phone: 1-301-286-6549

From: David.Evans at esa.int<mailto:David.Evans at esa.int> <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Sent: Monday, August 30, 2021 11:06 AM
To: Wong, Englin (GSFC-5670) <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>
Subject: RE: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review

Hi Mark,

I just clicked on the link and it looks OK. Here is a screenshot. Do you see something different?

Cheers, Dave

From:        "Wong, Englin (GSFC-5670)" <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>
To:        "David.Evans at esa.int<mailto:David.Evans at esa.int>" <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Date:        30/08/2021 16:24
Subject:        RE: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review

________________________________

Hi Dave,

Can you double check the eq 16 in the latest upload? I only see an additional subscript t on the Rt in the 1st condition that was edited.

Best,

Mark Wong

NASA GSFC Flight Microwave & Telecommunication Systems Branch

Phone: 1-301-286-6549

From: David.Evans at esa.int<mailto:David.Evans at esa.int> <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Sent: Sunday, August 29, 2021 12:19 PM
To: Wong, Englin (GSFC-5670) <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>
Cc: Miguel Hernández <Miguel.Hernandez at uab.cat<mailto:Miguel.Hernandez at uab.cat>>; Bruno Mickael <Mickael.Bruno at cnes.fr<mailto:Mickael.Bruno at cnes.fr>>
Subject: RE: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review

Hi Mark,

Back from holiday...

Thanks for your comments. I accepted the one on eq 14 as is.I

I think your comment on eq 16 can be better solved by introducing a simplification in the standard (it does not change my code). Please have a look if this addresses your issue. I put Miguel on copy as he has helped with the standard enormously and I would like his approval before changing equations!

https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-29081811_wong_evans.docx?d=wdc64a4918b844f0a9f1b2e3db022fa78<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-29081811_wong_evans.docx%3Fd%3Dwdc64a4918b844f0a9f1b2e3db022fa78&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837119501%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=c2I1Up1AD4RNqVOZ2%2FGdozhSlh8QX85VzzjQKHrGOh4%3D&reserved=0>

Best regards,
Dave

From:        "Wong, Englin (GSFC-5670)" <mark.wong at nasa.gov<mailto:mark.wong at nasa.gov>>
To:        "David.Evans at esa.int<mailto:David.Evans at esa.int>" <David.Evans at esa.int<mailto:David.Evans at esa.int>>
Date:        21/08/2021 13:08
Subject:        RE: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review

________________________________

Dave,

I have some comments for equation 14 and 16. Please see if my edits/comments make any sense.

https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-22071530_wong.docx?d=w233e5c38cbc8493dacd20ada1246710d<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-22071530_wong.docx%3Fd%3Dw233e5c38cbc8493dacd20ada1246710d&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837129458%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=OQdZrJ7PAO7ZJYiet4AxTCJIIlUnrzR7rJmqL%2F131qk%3D&reserved=0>

Best,

Mark Wong

NASA GSFC Flight Microwave & Telecommunication Systems Branch

Phone: 1-301-286-6549

From: SLS-DC <sls-dc-bounces at mailman.ccsds.org<mailto:sls-dc-bounces at mailman.ccsds.org>> On Behalf Of David.Evans at esa.int<mailto:David.Evans at esa.int>
Sent: Sunday, August 8, 2021 3:06 AM
To: sls-dc at mailman.ccsds.org<mailto:sls-dc at mailman.ccsds.org>
Subject: [EXTERNAL] Re: [SLS-DC] 124 final version ready for review

I was not on the new mailing list so I am sending this again just to be sure it arrived :-)

From:        David Evans/esoc/ESA
To:        sls-dc at mailman.ccsds.org<mailto:sls-dc at mailman.ccsds.org>
Date:        06/08/2021 16:27
Subject:        124 final version ready for review

________________________________

Dear working group,

The 124 standard has been updated, reviewed and agreed between ESA, CNES and UAB. It is available in pdf and doc on CWE.

https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-22071530.docx?d=wde9feb858ce64ba09aa9e41ce0eee1aa<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-22071530.docx%3Fd%3Dwde9feb858ce64ba09aa9e41ce0eee1aa&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837129458%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=nP3Xp4TkwzX3IlVtu5i2aT2zMNHYe%2FYbESS9ou2j3f4%3D&reserved=0>
https://cwe.ccsds.org/sls/docs/SLS-DC/CWE%20Private/124.0-B/advances124_spring_to_fall_2021/124x0w6-22071530.pdf<https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwe.ccsds.org%2Fsls%2Fdocs%2FSLS-DC%2FCWE%2520Private%2F124.0-B%2Fadvances124_spring_to_fall_2021%2F124x0w6-22071530.pdf&data=04%7C01%7Cmark.wong%40nasa.gov%7C4519c23becc74117761a08d96d4c125c%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637660997837129458%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=XwhRiLjTgXrqOd%2B6pNDPGqMcdGVexcFtrNGo8DHUTyQ%3D&reserved=0>

The UAB comments and answers and the previous versions are available there as well.

Can I ask that any comments the rest of the working group are provided by the end of August.

It was agreed at the spring meeting that if no major comments are received then we could start the space agency review process after that point. Therefore I will contact Mark at the beginning of September if there are no more changes.

Best regards,
Dave

PS Note the mailing list address has changed, The old mhdc one has been decommissioned.

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