TGS Salt Identification Challenge 12th place solution

by catla

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5(44BMU*EFOUJpDBUJPO$IBMMFOHF 5FBN-FBSOJOHUIF'VUVSF UIQMBDFTPMVUJPO DBUMB ,BHHMFNFFUVQ LBHHMF@UPLZP

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ࣗݾ঺հ ໊લܡɹঘً 5XJUUFS!LBUTVSB@KQ ॴଐஜ೾େֶɹ৘ใֶ܈ɹ৘ใՊֶྨɹ೥ ϓϩάϥϛϯάྺ໿೥൒ ઐ߈෼໺ແ͠ ͦͷଞ  ࠓճ͕,BHHMFॳ௅ઓ

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νʔϜ঺հ

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ίϯϖͷ֓ཁ ஍਒ը૾͔ΒԘؚ͕·Ε͍ͯΔ෦෼ΛృΓֆ͢Δίϯϖ ηϚϯςΟοΫηάϝϯςʔγϣϯ *OQVUσʔλάϨʔεέʔϧը૾ Y σʔλ EFQUIσʔλը૾ͷਂ͞৘ใ 5SBJOJOHEBUBTFUຕ 5FTUEBUBTFUຕ ࢀՃνʔϜ਺ UFBNT σʔλαΠζ͕খ͍͞ ظؒɿd

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wධՁࢦඪ w *P6 JOUFSTFDUJPOPWFSVOJPO ίϯϖͷ֓ཁ w೉͔ͬͨ͠఺ wॎʹਨ௚ͳϚεΫͷ༧ଌਫ਼౓

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1VCMJD-#UI

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1SJWBUF-#UI

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4PMVUJPO 6/FUϕʔε

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4PMVUJPO

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4PMVUJPO 6/FU

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4PMVUJPO d#BTF&ODPEFSd DBUMB 3FT/F9U MZBLB 3FT/FU BMVQ 3FT/FU 3FT/F9U DPTUBT 3FT/FU PVSBOPT %FOTF/FU USJBO 3FT/FU

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4PMVUJPO .BY1PPMJOH $POWE TUSJEFT *OQVUTJ[F Y Y

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4PMVUJPOd&ODPEFSd #BDLCPOF#MPDL #BDLCPOF#MPDL Y D D I X D (MPCBMQPPMJOH%FOTF 3FMV%FOTF 4JHNPJE

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4PMVUJPOd&ODPEFSd #BDLCPOF#MPDL #BDLCPOF#MPDL Y Y I X D (MPCBMQPPMJOH%FOTF D D 3FMV%FOTF 4JHNPJE $POWE LFSOFMTJ[F PVUDIBOOFM 4JHNPJE I X I X D

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4PMVUJPOdDFOUFSd $POWE#/3FMV $POW % $POWE#/3FMV $POWE#/3FMV $POW % $POW % $POW % %%FMBUJPO

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4PMVUJPOd%FDPSEFSd $POWE#/3FMV $POWE#/3FMV Y Y D D $POWE LFSOFMTJ[F PVUDIBOOFM 4JHNPJE I X I X D $POWE #/3FMV $POWE #/3FMV I X D (MPCBMQPPMJOH%FOTF 3FMV%FOTF 4JHNPJE

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4PMVUJPO -PTT 'PDBM-PTT -PWBT[MPTT BDUJWBUJPO3FMVPSFMV 0QUJNJ[FS "EBN NPNFOUVN4(%

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4PMVUJPO )ZQFSDPMNO

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4PMVUJPO ɾQTFVEPMBCFMJOH ɾ4OBQ4IPU&OTFNCMJOH ɾ'BTU(FPNFUSJD&OTFNCMJOH

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4PMVUJPO

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4PMVUJPO -PTT

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4PMVUJPOd1PTU1SPDFTTJOHd

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4PMVUJPOd1PTU1SPDFTTJOHd

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4PMVUJPOd1PTU1SPDFTTJOHd 1VCMJD-# 1SJWBUF-#ʹ͸ɺ ӨڹΛ༩͑ͳ͔ͬͨ

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͓ΘΓʹ 5XJUUFS աڈͷίϯϖ 2JJUB (JU)VC .FEJVN 4MJEFTIBSF BS9JW ຊ FUDʜ ͲΜͲΜ׆༻͠Α͏ʂ ᩦཉʹ୳ͤ͹༗༻ͳ৘ใ͕͝Ζ͝Ζམͪͯ ·͢ɻࠓճͷίϯϖͰ͸ɺ͜ΕΒΛಛʹ׆ ༻͍ͯ͠·ͨ͠ɻͥͻࢀߟʹ