[{"data":1,"prerenderedAt":302},["ShallowReactive",2],{"project-23394554":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":29,"sentiment":30,"stance_mix":31,"scored_comments":36,"aspects":37,"strip":42,"post_text":45,"what":46,"said":59,"maker_in_thread":142,"shape":154,"grid":159,"attempts":265,"same_week":266,"maker_shows":226,"maker_hidden":294,"reader_version":295,"card":296},"23394554","Street View Simple","Explore Street View Data in a Browser","title","Show HN: Street View Simple – Explore Street View Data in a Browser","https:\u002F\u002Fcallumprentice.github.io\u002Fapps\u002Fstreet_cloud_simple\u002F","callumprentice.github.io","callumprentice",1591123333,2020,62,50,953,3028,32,"notable","learning_science","street view data visualisation","web_app",[24,25,26,27,28],"street view","lidar","depth data","point cloud","google maps","curious",0.236,{"positive":32,"neutral":33,"mixed":34,"critical":35},7,10,0,2,19,{"execution":38,"idea":40,"privacy":41},{"positive":39,"critical":35},5,{"positive":35,"critical":34},{"positive":34,"critical":34},[43,43,34,43,39,34,39,34,34,43,34,43,39,34,43,34,34,34,34,34,34,34,39,39,34,43,43,34,44,34,34,39,39,43,34,44,34,34,34,34],3,1,null,{"problem":47,"audience":45,"pricing":45,"motivation":45,"time_to_build":45,"stack":57,"openness":58,"stage":58,"team_size":58},{"value":48,"source":49,"evidence":50},"Lets people see the depth data behind Street View imagery","inferred",[51,54],{"id":52,"by":11,"text":53},"23399086","Yep - there is way to grab the depth data from each Street View pano along with the image data. I plot each point 3D space and grab the corresponding color from the image. The…",{"id":55,"by":11,"text":56},"23395599","Thank you! As far as I know (it's undocumented) the only source of depth data is very low resolution. The image data (where the color of each point comes from) is much, much…",[],"unknown",{"praise":60,"objections":77,"requests":99,"questions":110,"alternatives":124},[61],{"value":62,"source":63,"evidence":64},"Fascinating and cool visualisation of Street View depth data","commenter",[65,69,73],{"id":66,"by":67,"text":68},"23395498","pj_mukh","This is very cool! I'm thinking the depth data that is captured is of higher resolution. Is that true? Was this limited by the API? Or a limitation of the browser? Super cool to…",{"id":70,"by":71,"text":72},"23401033","saeranv","That's a possibility. Are you rotating your squares in just the xy plane, or also along the \"pitch\"? I find your project fascinating, thank you for sharing it!",{"id":74,"by":75,"text":76},"23401371","MayeulC","Works here on Arch Linux, Firefox 76.0.1 (yeah, I need to upgrade).",[78,89],{"value":79,"source":63,"evidence":80},"Unclear whether the data is really LiDAR",[81,85],{"id":82,"by":83,"text":84},"23395994","jefft255","That's doesn't properly look like lidar data to me; at least it wouldn't be lidar that is mounted right on the street view car. Maybe they use aerial lidar somehow? Or maybe the…",{"id":86,"by":87,"text":88},"23396449","sdan","Yeah, this definitely doesn't look like lidar data... unless its really low quality. The buildings show spatial depth, but the cars and pedestrians are pretty much all in a…",{"value":90,"source":63,"evidence":91},"Does not work in Firefox 68 due to ResizeObserver",[92,96],{"id":93,"by":94,"text":95},"23404975","thepete2","\"ReferenceError: ResizeObserver is not defined (app.js:60:5)\" all relevant addons were also disabled.",{"id":97,"by":11,"text":98},"23405041","Bah. Looks like that came in at v69 of Firefox. Sorry about that.",[100],{"value":101,"source":63,"evidence":102},"Explain what the viewer shows and its purpose",[103,106],{"id":104,"by":71,"text":105},"23398977","This seems really cool, but I don't quite understand what I'm looking at. Is this a processed version of the LIDAR data for the environment? Also why do the \"pixels\" get less…",{"id":107,"by":108,"text":109},"23401831","raimue","Even with the full text I do not understand what I am seeing. The comparison to previous projects did not help because I do not know them either. It appears to be a different…",[111,118],{"value":112,"source":63,"evidence":113},"Why point density falls off toward view edges",[114,115],{"id":104,"by":71,"text":105},{"id":116,"by":71,"text":117},"23406036","Okay, so it has nothing to do with the orientation of the point planes. Having thought about it some more, I think this is a consequence of the reduction of surface area hit by…",{"value":119,"source":63,"evidence":120},"How Google builds clean polygons from point data",[121],{"id":122,"by":71,"text":123},"23399210","Looking at this makes me wonder how Google combines the point data to generate clean polygons. I.e when I hover my mouse over a wall in Street View, it identifies correctly the…",[125,136],{"value":126,"source":63,"evidence":127},"OpenStreetCam and Mapillary for user-built street imagery",[128,132],{"id":129,"by":130,"text":131},"23396041","netsharc","I've seen a project by OpenStreetMap to upload dashcam images, and a quick search gave me this: https:\u002F\u002Fopenstreetcam.org",{"id":133,"by":134,"text":135},"23396084","windthrown","The software is not open-source but both Mapillary and OpenStreetCam have very permissive licenses. I contribute to and use both services to improve OpenStreetMap. Mapillary:…",{"value":137,"source":63,"evidence":138},"AliceVision photogrammetry software",[139],{"id":140,"by":83,"text":141},"23395984","Any photogrammetry software will do the trick. A free one has been shared here recently: https:\u002F\u002Falicevision.org\u002F .",{"comments":36,"answered":143,"key":144},6,[145,148,151],{"id":146,"text":147},"23396665","Interesting - I've seen it touted as LiDAR data but since it's all a bit unofficial, I guess it could be anything. I'll see if I can dig up any old articles about it - it's been…",{"id":149,"text":150},"23397157","FWIW, that's just my own amateurish rendering of the points. The data itself that the Street View API provides is just an array of 3d points.",{"id":152,"text":153},"23397793","Not at - I knew what you meant :) Someone used it years ago to make a neat visualization where they rendered the Street View imagery as normal and then used the same 3D data to…",{"commenters":155,"max_depth":156,"maker_replies":36,"first_comment_mins":157,"lifespan_hours":158},22,8,67,25,[160,162,163,164,168,172,176,177,180,181,185,187,188,189,191,193,194,196,197,200,203,205,206,207,209,210,213,216,217,218,221,224,229,230,231,233,236,238,240,243,245,246,248,250,251,252,255,258,260,263],[82,34,43,161,83,34],"project\u002Fneutral\u002Fexecution",[86,34,43,161,87,34],[146,34,34,161,11,44],[165,34,43,166,167,34],"23397262","project\u002Fneutral\u002Fidea","mthoms",[169,34,43,170,171,34],"23398336","project\u002Fneutral\u002Fprivacy","accurrent",[173,34,39,174,175,34],"23397106","project\u002Fpositive\u002Fexecution","pantelisk",[149,34,34,161,11,44],[178,34,39,179,175,34],"23397480","project\u002Fpositive\u002Fidea",[152,34,34,166,11,44],[182,34,34,183,184,34],"23398133","other\u002Fneutral\u002Fnone","dang",[186,34,34,161,11,44],"23398193",[104,44,43,161,71,34],[52,44,34,161,11,44],[190,44,43,161,71,34],"23399244",[192,44,34,161,11,44],"23399267",[70,44,39,174,71,34],[195,44,34,161,11,44],"23403895",[116,44,43,161,71,34],[198,44,34,199,11,44],"23406122","commenter\u002Fpositive\u002Fnone",[201,35,34,183,202,34],"23395798","kevinali3",[204,35,34,183,11,44],"23395869",[140,35,34,183,83,34],[129,35,34,183,130,34],[208,35,34,183,134,34],"23396114",[133,35,34,183,134,34],[211,35,34,183,212,34],"23397194","Mediterraneo10",[214,35,34,183,215,34],"23401369","Raphaellll",[66,43,39,174,67,34],[55,43,34,161,11,44],[219,43,39,179,220,34],"23398486","moron4hire",[222,43,34,223,11,44],"23398896","maker\u002Fneutral\u002Fnone",[225,226,43,227,228,34],"23401320",4,"project\u002Fneutral\u002Fnone","00deadbeef",[107,226,43,166,108,34],[122,39,34,183,71,34],[232,39,34,179,11,44],"23399232",[234,143,44,235,94,34],"23399108","project\u002Fcritical\u002Fexecution",[237,143,34,161,11,44],"23399231",[239,143,34,161,11,44],"23399258",[241,143,39,174,242,34],"23399352","ciarannolan",[244,143,34,199,11,44],"23399403",[74,143,39,174,75,34],[247,143,43,161,94,34],"23403936",[249,143,34,161,11,44],"23404064",[93,143,44,235,94,34],[97,143,34,161,11,44],[253,143,34,254,94,34],"23407607","commenter\u002Fneutral\u002Fnone",[256,143,34,183,257,34],"23399712","eitland",[259,143,34,183,11,44],"23399733",[261,143,34,183,262,34],"23400451","quickthrower2",[264,143,34,183,11,44],"23403872",[],[267,272,276,281,285,290],{"id":268,"name":269,"points":270,"category":271},"23339244","RoughNotation",696,"dev_tools",{"id":273,"name":274,"points":275,"category":271},"23366532","Simpdf",327,{"id":277,"name":278,"points":279,"category":280},"23370646","WiFi Card",305,"productivity",{"id":282,"name":283,"points":284,"category":20},"23392049","HN Blogs",289,{"id":286,"name":287,"points":288,"category":289},"23408144","Virus Cafe",278,"consumer_social",{"id":291,"name":292,"points":293,"category":271},"23363767","git-fuzzy",251,false,"v2",{"id":297,"name":5,"line":6,"ai":294,"cat":20,"year":13,"points":14,"comments":15,"rec":29,"s":298,"top":18,"kw":299,"maker":11,"domain":10,"tier":19,"attempts":34,"strip":300,"url":9,"mix":301,"praise":62,"objection":79,"sub":21},23394554,0.24,[24,25,26,27,28],"3303505003035030000000550330100553010000",[32,33,34,35],1794036591482]