{"title":"Alkmaar archival-map registration refinement","created":"2026-10-26","version":1,"status":"Derived interpretive alignment to 1832 historical cadastral reference; original archival raster preserved","dataCoordinateSystem":"EPSG:4326 longitude,latitude; geographic bounds and normalized parcel coordinates unchanged","displayAspect":"Use same local metric display correction for archive and derived raster","selectionProtocol":"Compare translation, similarity, affine and nine smoothed thin-plate candidates using leave-one-out. Prefer 1823 affine for conservative regional correction; reject 1796 refinement when independent withheld checks worsen. Three spatially distributed holdouts excluded from all fits. Withheld checks inform final acceptance and simplicity judgement, so are validation diagnostics rather than an untouched final statistical test.","limits":["Manual source picks have subjective correspondence uncertainty; residuals are agreement with this historical reference, not absolute survey accuracy.","1796 to1832 spans36years;1823to1832 spans9years.1807residence evidence precedes1832by25years. No assumption of mass building movement is made.","A smooth regional raster warp cannot certify every sketched building edge or reconstruct1807changes.","Thin-plate or affine extrapolation outside control-point coverage is less supported.","Reference geometry is HISGIS1832, attributed to HISGIS/OpenStreetMap contributors under ODbL1.0; archive source map attribution remains separate."],"maps":[{"mapId":"alkmaar-1796","sourceYear":1796,"bounds":{"west":4.735627320117989,"south":52.62301354989243,"east":4.762373900115984,"north":52.63729657731487},"width":4096,"height":2187,"archiveRasterUrl":"/maps/alkmaar-1796-georeferenced.jpg","derivedRasterUrl":"/maps/alkmaar-1796-georeferenced.jpg","refinementAccepted":false,"rejectionReason":"Candidate fails independent withheld check; preserve archive registration as accepted view.","sourceUrl":"https://hdl.handle.net/21.12106/f25471f9-f37f-47c3-a18e-a788f3ff03fb","sourceRasterSha256":"ab17eaff8ef5359cf03212fc4d581fc6c084e5f103ff5c16ab787e8c3822382b","selectedModel":{"method":"identity","reason":"Candidate fails independent withheld check; preserve archive registration as accepted view."},"rejectedCandidate":{"method":"similarity","smoothing":0,"training":{"count":10,"rmseMetres":5.0952731585216755,"medianMetres":3.488007745381336,"maximumMetres":11.151734056189659},"leaveOneOut":{"count":10,"rmseMetres":6.055679501840716,"medianMetres":4.0914428156226705,"maximumMetres":12.639585346304756},"withheld":{"count":3,"rmseMetres":13.744123166153228,"medianMetres":8.805624590276137,"maximumMetres":21.73484366120008}},"modelComparison":[{"method":"translation","smoothing":0,"training":{"count":10,"rmseMetres":6.312039273725179,"medianMetres":4.056899828843909,"maximumMetres":14.60246182534737},"leaveOneOut":{"count":10,"rmseMetres":6.683934344681188,"medianMetres":4.318231106495483,"maximumMetres":15.076442693230359},"withheld":{"count":3,"rmseMetres":12.293556115214471,"medianMetres":10.078022879323406,"maximumMetres":18.39875188222554}},{"method":"similarity","smoothing":0,"training":{"count":10,"rmseMetres":5.0952731585216755,"medianMetres":3.488007745381336,"maximumMetres":11.151734056189659},"leaveOneOut":{"count":10,"rmseMetres":6.055679501840716,"medianMetres":4.0914428156226705,"maximumMetres":12.639585346304756},"withheld":{"count":3,"rmseMetres":13.744123166153228,"medianMetres":8.805624590276137,"maximumMetres":21.73484366120008}},{"method":"affine","smoothing":0,"training":{"count":10,"rmseMetres":5.022358130847768,"medianMetres":3.6317066587850353,"maximumMetres":11.128874178292484},"leaveOneOut":{"count":10,"rmseMetres":6.5807663551024564,"medianMetres":5.009926419745913,"maximumMetres":13.466665089549421},"withheld":{"count":3,"rmseMetres":13.677476725276435,"medianMetres":7.932070793275306,"maximumMetres":21.294034224108426}},{"method":"thin-plate-spline","smoothing":0.001,"training":{"count":10,"rmseMetres":0.163388356304177,"medianMetres":0.13435832786338742,"maximumMetres":0.30442996739067546},"leaveOneOut":{"count":10,"rmseMetres":10.177511154929372,"medianMetres":7.631626124668218,"maximumMetres":20.090860905124355},"withheld":{"count":3,"rmseMetres":17.360744651530037,"medianMetres":9.92140010026879,"maximumMetres":27.8345452820637}},{"method":"thin-plate-spline","smoothing":0.003,"training":{"count":10,"rmseMetres":0.45204571843802005,"medianMetres":0.36355959770816604,"maximumMetres":0.8580020132998103},"leaveOneOut":{"count":10,"rmseMetres":10.021337915161526,"medianMetres":7.528254500684258,"maximumMetres":19.400945772387168},"withheld":{"count":3,"rmseMetres":17.13018946216097,"medianMetres":9.773687739674724,"maximumMetres":27.471573836268135}},{"method":"thin-plate-spline","smoothing":0.01,"training":{"count":10,"rmseMetres":1.1945316449415408,"medianMetres":0.8659157958251997,"maximumMetres":2.362414254069151},"leaveOneOut":{"count":10,"rmseMetres":9.555232140706497,"medianMetres":7.161140024693006,"maximumMetres":17.429026565006634},"withheld":{"count":3,"rmseMetres":16.523627248929447,"medianMetres":9.411051861090149,"maximumMetres":26.497258353267753}},{"method":"thin-plate-spline","smoothing":0.03,"training":{"count":10,"rmseMetres":2.2934067709126644,"medianMetres":1.5078761149137607,"maximumMetres":4.76715820232149},"leaveOneOut":{"count":10,"rmseMetres":8.699537071882542,"medianMetres":6.535301517864443,"maximumMetres":14.029354438901754},"withheld":{"count":3,"rmseMetres":15.606822239279118,"medianMetres":8.910832259637882,"maximumMetres":24.966214628140943}},{"method":"thin-plate-spline","smoothing":0.1,"training":{"count":10,"rmseMetres":3.491345001005462,"medianMetres":2.2932627825517056,"maximumMetres":7.566780444540203},"leaveOneOut":{"count":10,"rmseMetres":7.575526876138252,"medianMetres":6.322978359899741,"maximumMetres":13.8524517938289},"withheld":{"count":3,"rmseMetres":14.63056731185005,"medianMetres":8.369248411527495,"maximumMetres":23.239243886931334}},{"method":"thin-plate-spline","smoothing":0.3,"training":{"count":10,"rmseMetres":4.232580289671135,"medianMetres":2.9792826413795153,"maximumMetres":9.314720040775368},"leaveOneOut":{"count":10,"rmseMetres":6.9139394058817185,"medianMetres":5.216645035482022,"maximumMetres":13.621972445611272},"withheld":{"count":3,"rmseMetres":14.104099072029785,"medianMetres":8.036897675279299,"maximumMetres":22.235300564436077}},{"method":"thin-plate-spline","smoothing":1,"training":{"count":10,"rmseMetres":4.6866455429637615,"medianMetres":3.3864786392550648,"maximumMetres":10.364031709406296},"leaveOneOut":{"count":10,"rmseMetres":6.657374071388213,"medianMetres":4.811280163011116,"maximumMetres":13.483169666436222},"withheld":{"count":3,"rmseMetres":13.841797426807764,"medianMetres":7.913294055483972,"maximumMetres":21.68199735625164}},{"method":"thin-plate-spline","smoothing":3,"training":{"count":10,"rmseMetres":4.888625285620512,"medianMetres":3.5417580373425515,"maximumMetres":10.826351044930929},"leaveOneOut":{"count":10,"rmseMetres":6.600869907218258,"medianMetres":4.930674799576622,"maximumMetres":13.46080406638999},"withheld":{"count":3,"rmseMetres":13.74028609985576,"medianMetres":7.91144643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· northwest corner","label":"Waag · northwest corner","featureType":"matched building corner","role":"fit","sourceUrl":"https://osm.hisgis.nl/api/0.6/way/3024349/full","sourcePixel":[2193,893],"targetLonLat":[4.7499279,52.6314783],"targetNormalized":{"x":0.5346694748668226,"y":0.4073560277375348},"archiveRasterNormalized":{"x":0.5354003906250147,"y":0.4083219021489835},"refinedRasterNormalized":{"x":0.5354003906250147,"y":0.4083219021489835},"beforeResidualMetres":2.0256327371796963,"afterResidualMetres":2.0256327371796963,"subjectiveCorrespondenceUncertaintyMetres":3.0,"interpretation":"Same western rectangular end corner; small projecting buttresses not used.","sourceNormalized":{"x":0.5354003906250147,"y":0.4083219021489835},"refinedNormalized":{"x":0.5354003906250147,"y":0.4083219021489835},"residualBeforeMetres":2.0256327371796963,"residualAfterMetres":2.0256327371796963,"referenceGeometry":[[4.7498348,52.6313807],[4.7499822,52.6313289],[4.7499581,52.6313036],[4.7500372,52.6312758],[4.7500423,52.6312812],[4.7500735,52.6312702],[4.7500765,52.6312733],[4.7501208,52.6312578],[4.7501375,52.6312753],[4.750241,52.6312389],[4.750332,52.6313343],[4.7502128,52.6313762],[4.7502214,52.6313852],[4.7501755,52.6314014],[4.7501668,52.6313923],[4.7501344,52.6314037],[4.7501435,52.6314132],[4.7500918,52.6314314],[4.7500841,52.6314233],[4.7499279,52.6314783],[4.7498348,52.6313807]]},{"number":2,"id":"cp-3031266","name":"Grotekerk · northwest transept corner","label":"Grotekerk · northwest transept corner","featureType":"matched building corner","role":"fit","sourceUrl":"https://osm.hisgis.nl/api/0.6/way/3031266/full","sourcePixel":[1270,676],"targetLonLat":[4.7438386,52.6328345],"targetNormalized":{"x":0.30700298440498675,"y":0.3124041691509923},"archiveRasterNormalized":{"x":0.31005859375000094,"y":0.30909922267930107},"refinedRasterNormalized":{"x":0.31005859375000094,"y":0.30909922267930107},"beforeResidualMetres":7.622695543501691,"afterResidualMetres":7.622695543501691,"subjectiveCorrespondenceUncertaintyMetres":5.0,"interpretation":"Northwestern corner of north transept, separate from nave and west front.","sourceNormalized":{"x":0.31005859375000094,"y":0.30909922267930107},"refinedNormalized":{"x":0.31005859375000094,"y":0.30909922267930107},"residualBeforeMetres":7.622695543501691,"residualAfterMetres":7.622695543501691,"referenceGeometry":[[4.7431939,52.6324989],[4.7432171,52.6325594],[4.7432319,52.6325595],[4.743245,52.6325956],[4.7432317,52.6325973],[4.7432331,52.6326036],[4.7432479,52.632601],[4.743261,52.6326353],[4.7432077,52.6326431],[4.7432499,52.6327524],[4.743306,52.6327436],[4.7433177,52.6327734],[4.7433088,52.6327734],[4.7433233,52.6328194],[4.743341,52.6328168],[4.7433424,52.632824],[4.7433528,52.6328223],[4.7433499,52.632815],[4.7434548,52.6328002],[4.743465,52.6328264],[4.7435197,52.6328185],[4.7435125,52.6327924],[4.7435302,52.6327898],[4.7435331,52.6327961],[4.743542,52.6327943],[4.7435391,52.632788],[4.74361,52.6327775],[4.7436129,52.6327848],[4.7436218,52.632783],[4.7436189,52.6327767],[4.7437046,52.6327636],[4.7437061,52.6327699],[4.7437164,52.6327681],[4.7437135,52.6327618],[4.7437948,52.6327505],[4.7437977,52.6327559],[4.7438066,52.6327541],[4.7438037,52.6327487],[4.7438081,52.6327478],[4.7438386,52.6328345],[4.7439425,52.6328196],[4.7441253,52.6327935],[4.7441313,52.6327899],[4.7441298,52.6327836],[4.7441239,52.6327845],[4.7441138,52.6327529],[4.7441212,52.6327521],[4.7441183,52.6327457],[4.7441109,52.6327475],[4.7441008,52.6327114],[4.7441407,52.6327035],[4.7441451,52.6327107],[4.7441658,52.6327081],[4.7441658,52.6327009],[4.7441806,52.6326983],[4.7441734,52.6326613],[4.7444144,52.6326246],[4.7444276,52.6326319],[4.744438,52.6326274],[4.7444203,52.6326183],[4.7444782,52.6325745],[4.7444944,52.6325781],[4.7444989,52.6325746],[4.7444901,52.6325664],[4.7445317,52.6325152],[4.7445465,52.6325153],[4.7445466,52.6325081],[4.7445362,52.6325045],[4.7445304,52.6324918],[4.7445733,52.6324857],[4.7445602,52.632446],[4.7445159,52.6324503],[4.7445086,52.6324349],[4.744516,52.6324296],[4.7445087,52.632425],[4.7444954,52.6324277],[4.7444144,52.6323876],[4.7444204,52.6323823],[4.7444127,52.6323838],[4.7444071,52.6323849],[4.7443112,52.6323673],[4.7443142,52.6323619],[4.7443053,52.6323601],[4.7443023,52.6323655],[4.7442964,52.6323645],[4.7443098,52.6323457],[4.7442893,52.6323195],[4.7442407,52.6323066],[4.7440278,52.632338],[4.744016,52.6323092],[4.744006,52.6322848],[4.7439794,52.6322855],[4.7439721,52.6322801],[4.7439647,52.6322801],[4.7439676,52.63229],[4.7439368,52.6322944],[4.7437119,52.6323266],[4.743709,52.6323194],[4.7437001,52.6323211],[4.743703,52.6323284],[4.7436882,52.6323301],[4.743726,52.6324213],[4.7436935,52.6324265],[4.7436891,52.6324166],[4.7436803,52.6324184],[4.7436846,52.6324274],[4.7436137,52.6324379],[4.7436108,52.6324315],[4.7436004,52.6324324],[4.7436033,52.6324396],[4.7435294,52.6324501],[4.7435265,52.6324419],[4.7435177,52.6324437],[4.7435206,52.6324518],[4.7434511,52.6324614],[4.7434467,52.6324533],[4.7434378,52.632455],[4.7434407,52.6324632],[4.7433683,52.6324736],[4.7433654,52.6324664],[4.7433551,52.6324682],[4.743358,52.6324754],[4.7432914,52.632485],[4.7432885,52.6324795],[4.7432797,52.6324804],[4.7432826,52.6324867],[4.7432131,52.6324963],[4.7432116,52.6324927],[4.7432013,52.6324935],[4.7432028,52.632498],[4.7431939,52.6324989]]},{"number":3,"id":"cp-3039866","name":"Stadhuis complex · northwest corner","label":"Stadhuis complex · northwest corner","featureType":"matched building corner","role":"fit","sourceUrl":"https://osm.hisgis.nl/api/0.6/way/3039866/full","sourcePixel":[1510,801],"targetLonLat":[4.7454884,52.6320658],"targetNormalized":{"x":0.3686856369207001,"y":0.3662232914747332},"archiveRasterNormalized":{"x":0.36865234374999534,"y":0.3662551440330569},"refinedRasterNormalized":{"x":0.36865234374999534,"y":0.3662551440330569},"beforeResidualMetres":0.07864420758621081,"afterResidualMetres":0.07864420758621081,"subjectiveCorrespondenceUncertaintyMetres":4.0,"interpretation":"Northwestern outer corner at civic complex rear, not representative centroid.","sourceNormalized":{"x":0.36865234374999534,"y":0.3662551440330569},"refinedNormalized":{"x":0.36865234374999534,"y":0.3662551440330569},"residualBeforeMetres":0.07864420758621081,"residualAfterMetres":0.07864420758621081,"referenceGeometry":[[4.7454372,52.6316892],[4.7453485,52.6317275],[4.7452855,52.6316624],[4.7451702,52.6317114],[4.7454884,52.6320658],[4.74568,52.6319974],[4.7456961,52.6320137],[4.745872,52.6319478],[4.7458559,52.6319306],[4.7459431,52.6318977],[4.7459563,52.6318987],[4.74598,52.6318898],[4.74598,52.6318826],[4.7457603,52.6316636],[4.7456812,52.6315858],[4.7456014,52.6316179],[4.7454372,52.6316892]]},{"number":4,"id":"cp-3041873","name":"Wildemanshof · southeast outer corner","label":"Wildemanshof · southeast outer corner","featureType":"matched building corner","role":"holdout","sourceUrl":"https://osm.hisgis.nl/api/0.6/way/3041873/full","sourcePixel":[2414,1523],"targetLonLat":[4.7514376,52.6273684],"targetNormalized":{"x":0.5911140745170551,"y":0.6951031473389363},"archiveRasterNormalized":{"x":0.5893554687499898,"y":0.6963877457703213},"refinedRasterNormalized":{"x":0.5893554687499898,"y":0.6963877457703213},"beforeResidualMetres":3.7778406453923066,"afterResidualMetres":3.7778406453923066,"subjectiveCorrespondenceUncertaintyMetres":7.0,"interpretation":"Southeast outer corner of eastern courtyard wing; 1832 parcel B1038 only. Historical compound correspondence interpreted; moderate uncertainty.","sourceNormalized":{"x":0.5893554687499898,"y":0.6963877457703213},"refinedNormalized":{"x":0.5893554687499898,"y":0.6963877457703213},"residualBeforeMetres":3.7778406453923066,"residualAfterMetres":3.7778406453923066,"referenceGeometry":[[4.7512949,52.627741],[4.7513054,52.62779],[4.7513065,52.6277946],[4.7514373,52.6277848],[4.7514359,52.6277797],[4.7514257,52.6277306],[4.7514898,52.6277258],[4.7515046,52.6277245],[4.7514972,52.6276805],[4.7514887,52.6276347],[4.7514801,52.6275918],[4.7514721,52.6275489],[4.7514637,52.627505],[4.7514559,52.6274632],[4.7514476,52.6274196],[4.7514376,52.6273684],[4.75142,52.6273689],[4.7513449,52.6273754],[4.7512396,52.6273857],[4.7511663,52.6273924],[4.7511424,52.6273948],[4.7511529,52.6274438],[4.7511622,52.6274877],[4.7511712,52.6275302],[4.7511799,52.6275725],[4.751187,52.6276164],[4.7511961,52.6276592],[4.7512055,52.6277041],[4.7512144,52.6277473],[4.7512315,52.6277459],[4.7512949,52.627741]]},{"number":5,"id":"cp-3033595","name":"Doelen · northwest corner","label":"Doelen · northwest corner","featureType":"matched building corner","role":"fit","sourceUrl":"https://osm.hisgis.nl/api/0.6/way/3033595/full","sourcePixel":[1627,651],"targetLonLat":[4.746285,52.6330539],"targetNormalized":{"x":0.3984688839773283,"y":0.2970432800684638},"archiveRasterNormalized":{"x":0.3972167968750018,"y":0.2976680384085499},"refinedRasterNormalized":{"x":0.3972167968750018,"y":0.2976680384085499},"beforeResidualMetres":2.4711789426639927,"afterResidualMetres":2.4711789426639927,"subjectiveCorrespondenceUncertaintyMetres":5.0,"interpretation":"Northwest outer corner of the recognizable L-shaped Doelen footprint.","sourceNormalized":{"x":0.3972167968750018,"y":0.2976680384085499},"refinedNormalized":{"x":0.3972167968750018,"y":0.2976680384085499},"residualBeforeMetres":2.4711789426639927,"residualAfterMetres":2.4711789426639927,"referenceGeometry":[[4.7461797,52.6329192],[4.746285,52.6330539],[4.7466236,52.6329185],[4.746606,52.6329013],[4.7463577,52.6329957],[4.7463269,52.6329649],[4.7463683,52.6329498],[4.7463419,52.6329226],[4.7464084,52.6328977],[4.7463615,52.6328516],[4.7463095,52.6328709],[4.7461797,52.6329192]]},{"number":6,"id":"cp-3032988","name":"Hospitaal · northern outer corner","label":"Hospitaal · northern outer corner","featureType":"matched building corner","role":"fit","sourceUrl":"https://osm.hisgis.nl/api/0.6/way/3032988/full","sourcePixel":[2941,1007],"targetLonLat":[4.7550384,52.630702],"targetNormalized":{"x":0.7257406323898762,"y":0.46170725013863756},"archiveRasterNormalized":{"x":0.7180175781249895,"y":0.46044810242362877},"refinedRasterNormalized":{"x":0.7180175781249895,"y":0.46044810242362877},"beforeResidualMetres":14.099741299024076,"afterResidualMetres":14.099741299024076,"subjectiveCorrespondenceUncertaintyMetres":9.0,"interpretation":"Northern outer corner of L-shaped hospital complex. 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y=(latitude-52.63)*6378137*pi/180","matrix":[[0.9990114970472497,-0.015743184910536348],[0.008175184659129434,1.0260138491619468]],"translationMetres":[3.4849800728021916,-9.016459963299768],"equation":"target_xy = matrix @ archive_xy + translationMetres"},"derivedRasterSha256":"e081ee8fbb182c957b7632569c1e2a6af9fee3fd25cf5b7272d4e3c526484b1b","rasterInterpolation":"Bicubic inverse warp; 32-pixel mesh samples of fitted inverse model","reportImageUrl":"/maps/registration-overlap-1823.png","archiveHighResolutionUrl":"/maps/alkmaar-1823-georeferenced-6144.jpg","derivedHighResolutionUrl":"/maps/alkmaar-1823-refined-6144.jpg","highResolution":{"width":6144,"height":3170,"bounds":{"west":4.734904629087013,"south":52.622276260972,"east":4.763636579881244,"north":52.63710051617889},"sourceUrl":"https://geoserver.memorix.nl/geoserver/raa/wms?service=WMS&version=1.1.1&request=GetMap&layers=raa%3Ab11e9df9-ac81-03b3-6c3d-6c19d622d66b&srs=EPSG%3A4326&bbox=4.734904629087013%2C52.622276260972%2C4.763636579881244%2C52.63710051617889&width=6144&height=3170&format=image%2Fjpeg&transparent=false&bgcolor=0xF4F0E6","sourceSha256":"33059a283032074f67c62ad41ce14e7c610df3ae25a7769d49f0a4ae3b6c7ebe","derivedSha256":"d91dbe43e5cff9218c9722ebfd9de083d52c21c109500b62b4abd516edca204b","inversePixelAffine":[1.000863808002027,-0.025301958846089434,25.397920919647273,0.00484038102742268,0.9745233487638547,8.196107744453952],"method":"Same accepted local-metric affine as4096layer; direct bicubic inverse sampling from larger archive response. No new registration fit."}}]}