[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-04 (世界標準時間)。"],[],[],null,["# Text Detection\n\n*Text Detection* performs Optical Character Recognition (OCR) to detect\nvisible text from frames in a video, or video segments, and returns the\ndetected text along with information about the frame-level location and\ntimestamp in the video for that text.\n\nText Detection is particularly useful for media \\& entertainment use cases,\nincluding, detecting and extracting cast lists at the end of shows and movies,\nor detecting the presence of burnt-in subtitles.\n\nText detection is available for the [languages](/vision/docs/languages)\nsupported by the Cloud Vision API.\n\nTo detect visible text from a video or video segments, call the\n[`annotate`](/video-intelligence/docs/reference/rest/v1p2beta1/videos/annotate)\nmethod and specify\n[`TEXT_DETECTION`](/video-intelligence/docs/reference/rest/v1p2beta1/videos#Feature)\nin the `features` field.\n\nCheck out the [Video Intelligence API visualizer](https://zackakil.github.io/video-intelligence-api-visualiser/#Text%20Detection) to see this feature in action.\n\nFor examples of requesting text detection and getting the annotated results,\nsee [Text Detection](/video-intelligence/docs/text-detection)."]]