Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
OCRを使ってゲームのアイテムをデータ化する
Search
Kishikawa Katsumi
May 22, 2026
Programming
150
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
OCRを使ってゲームのアイテムをデータ化する
プロトタイプを製品にする技術
OCRを使ってゲームのアイテムをデータ化する
Kishikawa Katsumi
May 22, 2026
More Decks by Kishikawa Katsumi
See All by Kishikawa Katsumi
Running Swift without an OS
kishikawakatsumi
0
960
浮動小数の比較について
kishikawakatsumi
0
580
Automatic Grammar Agreementと Markdown Extended Attributes について
kishikawakatsumi
0
260
愛される翻訳の秘訣
kishikawakatsumi
3
460
Private APIの呼び出し方
kishikawakatsumi
3
1k
iOSでSVG画像を扱う
kishikawakatsumi
0
250
Build your own WebP codec in Swift
kishikawakatsumi
2
2.6k
iOSDC 2024 SMBファイル共有をSwiftで実装する
kishikawakatsumi
1
330
Enhancing Applications with Accessibility API
kishikawakatsumi
3
6.1k
Other Decks in Programming
See All in Programming
PHP Application における Kubernetes 内 gRPC 通信
ganchiku
0
500
これからAgentCoreを触る方へトレンドはGatewayです
har1101
6
500
型も通る、synthも通る、それでも危ない 〜AIのCDKの権限とコストを機械で検証する〜 / It Passes Type Checks, It Passes Synth Checks, but It’s Still Risky — Automatically Verifying Permissions and Costs in AI’s CDK —
seike460
PRO
1
370
Apache Hive: そしてCloud Native Lakehouseへ
okumin
1
140
Claude Team Plan導入・ガイド
tk3fftk
0
210
ランチタイムLT会3周年!ランチタイムLT会を3年間続けられたお話
y0hgi
1
150
生成AI導入の「期待外れ」を乗り越える ー 開発フロー改革が目指す、真の組織変革
starfish719
0
170
ソフトウェア設計に溶けるインフラ ― AWS CDK のインフラ認識論
konokenj
2
570
Laravel Boostに学ぶ、AIにPHPを書かせる技術 〜OSSの実装から蒸留するエージェント制御の王道〜
kentaroutakeda
3
490
AI がコードを書く時代における新卒エンジニアの仕事風景 (2026) / New Graduate Engineers in the Era of AI Coding (2026)
sushichan044
0
220
Honoでのサプライチェーン侵害対策 〜 3つのライブラリに学ぶ
yusukebe
7
1.9k
【SRE NEXT 2026 Lunch Session】一人目専任SREの立ち上げを加速する ― AIと進めたオンボーディングで2分を0.04秒にした話
pkshadeck
PRO
0
2.8k
Featured
See All Featured
How to Align SEO within the Product Triangle To Get Buy-In & Support - #RIMC
aleyda
2
1.7k
Why Our Code Smells
bkeepers
PRO
340
58k
SEO in 2025: How to Prepare for the Future of Search
ipullrank
3
3.6k
Amusing Abliteration
ianozsvald
1
230
Discover your Explorer Soul
emna__ayadi
2
1.2k
Keith and Marios Guide to Fast Websites
keithpitt
413
23k
Efficient Content Optimization with Google Search Console & Apps Script
katarinadahlin
PRO
1
730
The Limits of Empathy - UXLibs8
cassininazir
1
520
Side Projects
sachag
455
43k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
47
8.2k
Why Mistakes Are the Best Teachers: Turning Failure into a Pathway for Growth
auna
0
180
Making the Leap to Tech Lead
cromwellryan
135
10k
Transcript
ϓϩτλΠϓΛʹ͢Δٕज़ LJTIJLBXBLBUTVNJ !LJTIJLBXBLBUTVNJ!IBDIZEFSNJP LJTIJLBXBLBUTVNJ 0$3ΛͬͯήʔϜͷΞΠςϜΛσʔλԽ͢Δ
None
ϓϩτλΠϓΛʹ͢Δٕज़ r ݸͷΞΠςϜΛਖ਼֬ʹσʔλԽ͢Δ r ̍ͭʹ͖ͭඵҎʹಡΈऔΕΔ r ήʔϜͷݴޠ͕ຊޠͱӳޠͷͲͪΒͰಡΈऔΕΔ
ϓϩτλΠϓΛʹ͢Δٕज़ r ݸͷΞΠςϜΛਖ਼֬ʹσʔλԽ͢Δ r ̍ͭʹ͖ͭඵҎʹಡΈऔΕΔ r ήʔϜͷݴޠ͕ຊޠͱӳޠͷͲͪΒͰಡΈऔΕΔ ਫ਼
ϓϩτλΠϓΛʹ͢Δٕज़ r ݸͷΞΠςϜΛਖ਼֬ʹσʔλԽ͢Δ r ̍ͭʹ͖ͭඵҎʹಡΈऔΕΔ r ήʔϜͷݴޠ͕ຊޠͱӳޠͷͲͪΒͰಡΈऔΕΔ ਫ਼
ϓϩτλΠϓΛʹ͢Δٕज़ r ݸͷΞΠςϜΛਖ਼֬ʹσʔλԽ͢Δ r ̍ͭʹ͖ͭඵҎʹಡΈऔΕΔ r ήʔϜͷݴޠ͕ຊޠͱӳޠͷͲͪΒͰಡΈऔΕΔ ਫ਼ ॊೈੑ
4BNQMF$PEF HJUIVCDPNLJTIJLBXBLBUTVNJ$BNFSB0$3
None
None
େ͖͞ ৭ छྨ ޮՌςΩετ
4UFQ3BX0$3 actor OCRRunner { private var busy = false func
process(_ cgImage: CGImage) async -> [RecognizedTextObservation]? { guard !busy else { return nil } busy = true defer { busy = false } var request = RecognizeTextRequest() request.recognitionLanguages = [ Locale.Language(identifier: "ja-JP"), Locale.Language(identifier: "en-US"), ] request.recognitionLevel = .accurate request.usesLanguageCorrection = false return try? await request.perform(on: cgImage) } }
None
4UFQ4UBCJMJUZ'JMUFS
let windowSize: Int = 5 let minHits: Int = 3
func updateStability(with results: [RecognizedTextObservation]) { let textsThisFrame = Set( results.compactMap { (observation) -> String? in let raw = observation.topCandidates(1).first?.string ?? "" let t = raw.trimmingCharacters(in: .whitespacesAndNewlines) return t.isEmpty ? nil : t } ) recentTextSets.append(textsThisFrame) if recentTextSets.count > windowSize { recentTextSets.removeFirst(recentTextSets.count - windowSize) } var counts: [String: Int] = [:] for set in recentTextSets { for t in set { counts[t, default: 0] += 1 } } let stable = counts.filter { $0.value >= minHits } stableTexts = Set(stable.keys) stableLines = stable .map { StableLine(text: $0.key, hits: $0.value) } .sorted { $0.hits == $1.hits ? $0.text < $1.text : $0.hits > $1.hits } } ϑϨʔϜͰճҎ্ग़ݱͨ͠ ςΩετΛ࠾༻͢Δɻ
None
Ԍ߈ܸྗ্ঢ Ԍ߈ܸྗ্ঢ ཕ߈ܸྗ্ঢ Ԍ߈ܸྗ্ঢ ཕ߈ܸྗ্ঢ ग़ܸ࣌ͷثʹ ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ
ཕ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ ཕ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ ཕ߈ܸྗΛՃ ϦϯάόοϑΝʹΑΔ҆ఆੑͷ্ /ϑϨʔϜத.ճҎ্ग़ͨςΩετΛ࠾༻͢Δ
Ԍ߈ܸྗ্ঢ Ԍ߈ܸྗ্ঢ ཕ߈ܸྗ্ঢ Ԍ߈ܸྗ্ঢ ཕ߈ܸྗ্ঢ ग़ܸ࣌ͷثʹ ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ
ཕ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ ཕ߈ܸྗΛՃ ग़ܸ࣌ͷثʹ ཕ߈ܸྗΛՃ ϦϯάόοϑΝʹΑΔ҆ఆੑͷ্ /ϑϨʔϜத.ճҎ্ग़ͨςΩετΛ࠾༻͢Δ
4UFQ30* 3FHJPOPG*OUFSFTU
ΨΠυͷൣғ͚ͩಡΈऔΔ ؔͳ͍ςΩετΛಡ·ͳ͍ɾ্
static let roiOnScreen = CGRect(x: 0.08, y: 0.30, width: 0.84,
height: 0.32) static let visionROI: NormalizedRect = { let r = roiOnScreen return NormalizedRect(x: r.minX, y: 1 - r.maxY, width: r.width, height: r.height) }() func process( _ cgImage: CGImage, roi: NormalizedRect ) async -> [RecognizedTextObservation]? { ... request.regionOfInterest = roi ... } 6*ͷ࠲ඪͷ7JTJPOGSBNFXPSLͷ ࠲ඪʹมͯ͠ηοτ ΨΠυͷൣғ͚ͩಡΈऔΔ ؔͳ͍ςΩετΛಡ·ͳ͍ɾ্
None
4UFQ.BTUFS.BUDIJOH
Ϛελʔσʔλͱর߹
func bestMatch(for input: String) -> (master: Master, distance: Int)? {
let n = normalize(input) var best: (Master, Int)? for (key, master) in normalizedKeys { if abs(key.count - n.count) > 5 { continue } let d = levenshtein(n, key) if best == nil || d < best!.1 { best = (master, d) } } return best } // डཧ: ڑ ≤ max(1, |master| × 0.3) ≒ score ≥ 0.70 let threshold = max(1, Int(Double(master.textJa.count) * 0.3)) guard match.distance <= threshold else { return nil } ฤूڑ -FWFOTIUFJO%JTUBODF ͰҰகΛఆ Ϛελʔσʔλͱর߹
None
ΞϧΰϦζϜ )BNNJOHڑ ܭࢉྔͱΈ ࠷ 903 QPQDPVOU ɻಉ͡͞ͷจࣈྻͰʮҟͳΔҐஔͷʯΛ͑Δ ࠾༻͠ͳ͔ͬͨཧ༝ 0$3ͷจࣈGSBNF͝ͱʹ༳ΕΔͨΊద༻ෆՄɻจࣈͰ͕͞ҧ͏ͱ͑ͳ͍ ΞϧΰϦζϜ
OHSBN+BDDBSEྨࣅ ܭࢉྔͱΈ ͍ ू߹ԋࢉ ɻจࣈ/HSBNू߹Λ࡞Γc"ˬ#cc"˫#cΛܭࢉ ࠾༻͠ͳ͔ͬͨཧ༝ จࣈॱংΛࣺͯΔͨΊʮ߈ܸྗ্ঢʯͱʮ্ঢ߈ܸྗʯΛ۠ผͰ͖ͳ͍ ΞϧΰϦζϜ %BNFSBV-FWFOTIUFJO ܭࢉྔͱΈ -FWFOTIUFJOͱ΄΅ಉ Θ͔ͣʹ͍ ɻ-FWFOTIUFJO ྡจࣈͷೖΕସ͑ΛίετͰڐ༰ ࠾༻͠ͳ͔ͬͨཧ༝ 0$3ͰUSBOTQPTJUJPOΑΓ७ਮͳஔޡΓ͕େͰɺԸܙ͕ബ͍ ΞϧΰϦζϜ +BSP8JOLMFS ܭࢉྔͱΈ -FWFOTIUFJOΑΓఆ͕খ͍͞ɻҰகจࣈ USBOTQPTJUJPO ڞ௨QSF fi YՃͰྨࣅΛग़͢ ࠾༻͠ͳ͔ͬͨཧ༝ ͍ਓ໊ɾॅॴ͚ʹ࠷దԽ͞ΕͨؔͰɺʙจࣈͷFGGFDUจͰ-FWFOTIUFJOͱͷ͕ࠩग़ʹ͍͘ ͦͷଞͷর߹ΞϧΰϦζϜ
ͦͷଞͷর߹ΞϧΰϦζϜ ΞϧΰϦζϜ 4ZN4QFMM ܭࢉྔͱΈ ࣄલܭࢉͰ࣮࣭0 MPPLVQɻNBTUFSΛʮFEJU≤Lͷશมܗʯʹల։ͨࣙ͠ॻΛQSFCVJME͠ɺೖྗల։ͯ͠IBTIিಥΛݕग़ ࠾༻͠ͳ͔ͬͨཧ༝ ڑ≤·Ͱ͔͠Ҿ͚ͣ͞มಈʹऑ͍ɻࣙॻల։Ͱ0 -
ͷϝϞϦு͕͋Γɺ݅نͰԸܙ͕͍͠ ΞϧΰϦζϜ #,USFF ܭࢉྔͱΈ ฏۉ0 MPH/ ఔͷۙ୳ࡧɻจࣈྻۭؒʹNFUSJDUSFFΛߏங͠ɺڑEҎͷͷΛͰߜΔ ࠾༻͠ͳ͔ͬͨཧ༝ ෦Ͱ݁ہ-FWFOTIUFJOΛݺͿɻ݅نͰΠϯσοΫεߏஙίετ͕ԸܙΛ্ճΔ ΞϧΰϦζϜ 4PVOEFY.FUBQIPOF ԻӆIBTI ܭࢉྔͱΈ ͍ ఆ࣌ؒ ɻൃԻྨࣅੑͰಉΫϥεΛ࡞ΓɺϋογϡҰகͰൺֱ ࠾༻͠ͳ͔ͬͨཧ༝ ӳޠԻӆ͚ͷࢉ๏Ͱ͋Γɺຊޠ$+,ʹద༻Ͱ͖ͳ͍ ΞϧΰϦζϜ จ຺ϞσϧຒΊࠐΈڑ #&35 ܭࢉྔͱΈ େ෯ʹ͍ ेNTΫΤϦ ɻจࣈྻΛߴ࣍ݩϕΫτϧʹຒΊࠐΈɺDPTJOFڑͰྨࣅΛܭࢉ ࠾༻͠ͳ͔ͬͨཧ༝ ϦΞϧλΠϜಈըʹॏ͗͢ΔɻϞσϧ͕NBTUFSͷEPNBJOޠኮɺಛʹήʔϜޠΛΒͳ͍
ೖྗσʔλΛΩϨΠʹ͢Δࡉ͔͍ r Χˠྗ̍ͭΧλΧφͷΧΛࣈͷྗ ͔ͪΒ ʹஔ͖͑Δ ‣ ߈ܸʮྗʯͳͲܾ·ͬͨύλʔϯʹ͍ͭͯ r શ֯ɾ֯Λଗ͑Δ r
ۭനΛআڈ͢Δ Ϛονϯάͷલʹਖ਼نԽͯ͠ϊΠζΛআڈ͢Δ
ೝࣝΛ্ͤ͞Δࡉ͔͍ 0xD5D5EBF7EAD5D5EB ݩը૾ 9×8 grayscale 8×8 bit pattern 64-bit hash
E)BTIΛϋϛϯάڑͰൺֱͯ͠ྨࣅͷϑϨʔϜΛແࢹ͢Δ
None
·ͱΊ r Ϛελʔσʔλʢਖ਼ղͷఆٛʣΛ͑Δ r ϑϨʔϜ୯ҐͰޡೝࣝΛϑΟϧλʔ͢Δ ‣ .VMUJGSBNF$POTFOTVT r ࣄલʹೖྗΛΫϦʔϯʹ͢Δ ‣
ςΩετͷਖ਼نԽ ‣ Α͋͘ΔޡೝࣝΛஔ r ڍಈΛܾఆతɾ؍ଌՄೳʹ͢Δ ߴ͍࣭Ͱ࠶ݱੑͷ͋Δ݁ՌΛग़ྗ͢ΔͨΊͷ
3FTPVSDFT r IUUQTHJUIVCDPNLJTIJLBXBLBUTVNJ$BNFSB0$3 r IUUQTHJUIVCDPNLJTIJLBXBLBUTVNJ3FMJD'PSHF r IUUQTBQQTBQQMFDPNVTBQQSFMJDGPSHFJE r IUUQTSFMJDGPSHFQBHFTEFW