[OSGeo-Discuss] OSGeoLive 8.0 status: UAT (beta1)
Greetings all, Today we are releasing the first (and probably last) beta of OSGeoLive 8.0. In this OSGeo-Live 8.0 development cycle we have seen major upgrades: * We moved to the light weight Lubuntu distribution, * We moved to a new Long Time Support release (14.04 LTS) * We tried to make use of Debian packaging for even more applications. It should be our best distribution yet. But this has impacted our schedule, as the Ubuntu LTS has only become stable within the last 2 weeks (14.04.1 release), and we need help in order to deliver OSGeo-Live to FOSS4G-PDX [0] with our usual high level of quality and reliability. In particular, we need help: 1. Testing to verify everything works in this new system and fixing bugs. Download beta1 here: [1][2]. 2. Updating version numbers in your Project Overview (if changed), and possibly mention a new feature or two [3]. 3. Re-running the Quickstart and ensure each step is still valid, and that screenshots match the implementation. 4. Updating status of the Project Overview and Quickstart to 8.0draft in our status sheet. [4] 5. Reporting any findings in our Trac instance [5] Due to our tight timelines, we might need to hide applications which we can't get stablised, tested, or docs updated in time. Please check our current list of open issues [5] to verify that your project is working as expected. Major Issues * MapFish: http://trac.osgeo.org/osgeo/ticket/1357 * Tilemill: http://trac.osgeo.org/osgeo/ticket/1348 Schedule * 03 August 2014 Beta 1 released - Start taking screen shots with new background. * 08 August 2014 Community Testing Sprint (UAT). * 10 August 2014 Translations complete. * 11 August 2014 RC1 release. * 17 August 2014 OSGeo-Live 8.0 sent to the printers. OSGeoLive needs you! [6] The OSGeoLive development team. [0] http://2014.foss4g.org/ [1] http://aiolos.survey.ntua.gr/gisvm/8.0/osgeo-live-mini-8.0beta1-i386.iso [2] http://osprey.ucdavis.edu/downloads/osgeo/gisvm/gisvm/8.0beta1/osgeo-live-mini-8.0beta1-i386.iso [3] http://wiki.osgeo.org/wiki/Live_GIS_Disc#Documentation [4] https://docs.google.com/spreadsheet/ccc?key=0Al9zh8DjmU_RdGIzd0VLLTBpQVJuNVlHMlBWSDhKLXc#gid=13 [5] http://trac.osgeo.org/osgeo/report/10 [6] https://twitter.com/astroidex/status/489352343390257152/photo/1 -- Angelos Tzotsos OSGeo Charter Member http://users.ntua.gr/tzotsos ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Anyone openly georeferencing maps and pictures in time?
First I'd like to say a big thank you to Pat, Eli Bob for your responses here, and also to Jeff who I originally emailed, and suggested I email this list. Problems of this type clearly are technically soluble, and some, e.g in the military context, which I'd not been thinking about, have been solved. So let's try to redefine what I looking for, and the questions which arise. So: 1. A process for geotagging images which are sparse in both time and space, but with human expertise on hand. I think this differentiates the problem from the Structure from Motion problems linked to, although I note that they include looking at sparse data. It's just that having just the occasional photos and drawings surviving of a location at various points in the past take sparseness to another level. I may be wrong, but there has to be a sparsity threshold beyond which you need to design in the human expert. For this stage, I think now I was confusing myself by thinking about warping images to maps; more sensible to warp maps to images, so having tentatively tagged an image with a location, direction of view and magnification, then call up a warped version of vector layer map, such as OpenStreetMap, to compare the edges on the image with what you'd expect to see, and adjust the initial estimates for the image geotagging. It wouldn't need to be perfect, just recognisably making sense to the human researcher; it's not as if we want to land a missile on anything with pinpoint accuracy. An incidental thought here - what does OpenStreetMap do when new roads and buildings come along? Can it be rolled back to how things were? If there's a data structure of that, could that not be extended to how streets looked before anyone thought of OpenStreetMap? If I was trying to locate a historical photo, it could be helpful. 2. A data structure for holding such geotagged images and relating them to other types of entity. Thanks to looking videos showing architectural drawing packages (SketchUp) interfacing with Google Earth, in which buildings are considered as an entity type 'component', I think that's the sort of thing I want. I'm thinking of this in the context of how city-scapes change, so that seems natural. Obviously if it was landscapes, components could be water features or other components of the non-built environment. So you'd want a relation to say that an image is of some component - which would have its own geotag, and also some vector data to describe its 3D extension based on the edges obervable - by machine with expert guidance. This would be a many to many relationship. 3. A process to use this data to realise what it would look like if you looked a certain way at a given point in time - so this is where you would warp the images rather than the maps. This also has to be a solved problem - architects and town planners must be doing it every day as they visualise projected developments, and are also able to add texture from existing images. The product I was just looking at in this connection is SketchUp http://en.wikipedia.org/wiki/SketchUp 4. Making it happen. I'm not going to write too much about this, because it would be too vague and conjectural, but any thoughts on what it would take to achieve the above, and additional ideas on the sort of entities who might argue for it and fund it would be appreciated! I'm also thinking about copyright issues ... any thoughts on that welcome too. Tim On 1 August 2014 20:01, Pat Tressel ptres...@myuw.net wrote: Tim -- This is a project idea which seems obvious to me, and one which would so obviously benefit from OSGeo involvement, that I feel someone on this list will know very quickly if anyone is working on it in an open data way. It comes from thinking about the warping which needs to be done to get from an aerial photograph to a map, and extending the thought to what can be done with a very oblique image - such as I might take standing on the ground. Any photo, not just an aerial one, can be considered as a map just waiting to be tagged with scale, projection, geolocation and date. The photo doesn't have to be great quality - perfection is not needed. In fact, if we allow some artistic licence, we could apply the same process to scans of historic prints and paintings. And if we had a library of such geotagged images, researchers would be able to specify an area and a time range, and search for images whose area of coverage overlapped it taken during the given period. It would be of antiquarian interest - there's an organisation I belong to called the London Topographical Society http://www.topsoc.org/front/index which has access to a mind-boggling number of maps, old photos and prints of London - but also to academics in Geography and Town Planning departments. It would also be of commercial interest to developers looking at the planning context for new developments. And I think I've read somewhere of commercial
[OSGeo-Discuss] OSGeo Elections
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hey Charter Members, this year the elections are electronic - thanks for the great work to Jorge and Bart and who else might have been involved! This is just a reminder that as a Charter Member you should have received an Email with the subject: Invitation to participate in the OSGeo Charter Member elections It is personalized and contains the token you need to participate in the elections. I am just sending this because I inadvertently archived my copy of this mail (holiday slacking and all) and it took me some time to peel it out of the archives again. Hoping that the subject of the mail may help you if you have the same issue... Have Fun, Arnulf PS: It is a great list of nominees! And I am really happy that we have this much better voting system in place now. Thanks to all who contributed to the talks leading up to getting it implemented - and thanks to the implementers and CRO! From past experience I know it is a rather thankless job. :-) - -- Exploring Space, Time and Mind http://arnulf.us -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAlPeUdkACgkQXmFKW+BJ1b1NVgCeOw7g53wPHZaDgWD1ctEneTBg 6f8AnA6zWcCgUFBEXc26mSyxREGb3Ltk =orit -END PGP SIGNATURE- ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Inquiry: Help please! [SEC=UNOFFICIAL]
Sid, A search on the term photogrammetry may also help. This is a very specialised discipline. You will find that some photogrammetric software already exists. Bruce From: discuss-boun...@lists.osgeo.org [discuss-boun...@lists.osgeo.org] On Behalf Of Pat Tressel [ptres...@myuw.net] Sent: Saturday, 2 August 2014 4:34 PM To: S.A. Mouti Cc: OSGeo Discussions Subject: Re: [OSGeo-Discuss] Inquiry: Help please! Hi, Sid! I would like to develop an algorithm that uses remote geographic sensing data to automatically identify, highlight, and measure rooftops and buildings surfaces and contours using Geospatial data. My preference is to overlay the results on one of the existing map providers such as Google Earth/maps or Bing . My aim is to get the following outputs from the proposed model: * Accurately highlighted and identified rooftops on Google maps (using geo sensing data, elevation? and * Property Address or GPS coordinate. * Surface and square footage available for solar power generation including the position of the property(N-S or E-W). At the exact surface of the south facing portion of the roof. * Integrate sun tool in google maps to calculate shading for each building. * Total surface/square footage of the roof. I would appreciate your guidance on the following: * Any individual developers or companies active in this area who would be willing to undertake this challenge * View on technical do-ability of the project… * What free geospatial data is available/needed to build the model and who the providers are? (I understand that US cleared higher resolution imagery for domestic ) * An idea about the overall cost for such a model. Best regards, Sid Just want to mention two things: 1) Building outlines are available for some locations in both commercial maps (Google and Bing, for instance). In OpenStreetMap, if buildings have not been mapped for a specific area you're interested in, you might be able to get local mappers to do it. (Of course, the building outlines obtained that way may not be accurate. Many times, the building outline is simplified from the actual building as it's only needed to indicate, there is / was a building here, e.g. for rescue workers looking for survivors after a natural disaster.) 2) If you use satellite imagery (or possibly low-elevation imagery if you have accurate info on the camera path and orientation), then the shadows cast by buildings can be used to estimate their height. A very brief web search turns up a fair number of papers on this -- just one example, with references to earlier work that may be more relevant: http://www.asprs.org/a/publications/pers/98journal/january/1998_jan_35-44.pdf -- Pat ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] Inquiry: Help please! [SEC=UNOFFICIAL]
Just off the top of my head Erdas has/had a tool called objective that would outline building rooftops...possibly in 3-d - http://www.hexagongeospatial.com/products/ERDAS-IMAGINE/IMAGINEObjective/Details.aspx There are several packages from ERDAS/Intergraph/Boeing/etc that do this type of thing - although I've been out of the industry too long to know if it's down to automatic (button push). As for free geospatial data - that is doubtful. You are probably going to have to draw up plans and have data collected to support this endeavor. To map a US Based Fossil Plant (burning coal to produce electricity) would cost 10 years ago about ~$100,000 and that gave you contours, building heights, coal inventory, planimetrics, etc. Now I'm assuming a large portion of that would be done with lidar and not require massive numbers of stero pairs etc (only reason I know is I had to have one done for a former employer). Hope that helps - the software exists - I don't think it exists in the Open Source world currently. Randy On 08/03/2014 06:05 PM, Bruce Bannerman wrote: Sid, A search on the term photogrammetry may also help. This is a very specialised discipline. You will find that some photogrammetric software already exists. Bruce From: discuss-boun...@lists.osgeo.org [discuss-boun...@lists.osgeo.org] On Behalf Of Pat Tressel [ptres...@myuw.net] Sent: Saturday, 2 August 2014 4:34 PM To: S.A. Mouti Cc: OSGeo Discussions Subject: Re: [OSGeo-Discuss] Inquiry: Help please! Hi, Sid! I would like to develop an algorithm that uses remote geographic sensing data to automatically identify, highlight, and measure rooftops and buildings surfaces and contours using Geospatial data. My preference is to overlay the results on one of the existing map providers such as Google Earth/maps or Bing . My aim is to get the following outputs from the proposed model: * Accurately highlighted and identified rooftops on Google maps (using geo sensing data, elevation? and * Property Address or GPS coordinate. * Surface and square footage available for solar power generation including the position of the property(N-S or E-W). At the exact surface of the south facing portion of the roof. * Integrate sun tool in google maps to calculate shading for each building. * Total surface/square footage of the roof. I would appreciate your guidance on the following: * Any individual developers or companies active in this area who would be willing to undertake this challenge * View on technical do-ability of the project… * What free geospatial data is available/needed to build the model and who the providers are? (I understand that US cleared higher resolution imagery for domestic ) * An idea about the overall cost for such a model. Best regards, Sid Just want to mention two things: 1) Building outlines are available for some locations in both commercial maps (Google and Bing, for instance). In OpenStreetMap, if buildings have not been mapped for a specific area you're interested in, you might be able to get local mappers to do it. (Of course, the building outlines obtained that way may not be accurate. Many times, the building outline is simplified from the actual building as it's only needed to indicate, there is / was a building here, e.g. for rescue workers looking for survivors after a natural disaster.) 2) If you use satellite imagery (or possibly low-elevation imagery if you have accurate info on the camera path and orientation), then the shadows cast by buildings can be used to estimate their height. A very brief web search turns up a fair number of papers on this -- just one example, with references to earlier work that may be more relevant: http://www.asprs.org/a/publications/pers/98journal/january/1998_jan_35-44.pdf -- Pat ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss -- - Randal Hale North River Geographic Systems, Inc http://www.northrivergeographic.com 423.653.3611 rjh...@northrivergeographic.com twitter:rjhale http://about.me/rjhale http://www.northrivergeographic.com/spatial-connect ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
