View a markdown version of this page

为视频创建蓝图 - Amazon Bedrock
用于媒体搜索的蓝图字段示例主题演讲要点的蓝图字段示例用于广告分析的蓝图字段示例

本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

为视频创建蓝图

与其他蓝图相比，视频文件的蓝图具备一些独有特性，尤其是在字段创建方面。视频蓝图有一个名为“粒度”的参数，用于将字段设置为“视频”或“章节”。当字段设置为“视频”时，将对整个视频进行检测。例如，如果您想要整个视频片段的摘要，则需要将该字段的粒度设置为“视频”。

将粒度设置为“章节”则会为视频的每个章节返回响应。该字段将为每个视频章节返回一个值。还是使用前面的示例，如果您想获取视频每个部分的摘要，则可以将粒度设置为“章节”。

创建章节粒度字段时，您可以设置唯一的数据类型，即实体数组。例如，如果您要检测视频中显眼的物体，可以创建一个名为 key-visual-objects 的字段，并将其类型设置为实体数组。然后，此字段将返回数组对象中实体的名称。

以下是用于视频处理的一些字段示例。视频蓝图中的所有字段均被视为推断字段，实体和实体数组字段除外。

字段 说明 提取类型 类型 粒度
key-visual-objects Please detect all the visually prominent objects in the video extractive Array of entities [ "chapter" ]
keywords Searchable terms that capture key themes, cast, plot elements, and notable aspects of TV shows and movies to enhance content discovery. inferred Array of strings ["video"]
genre The genre of the content. inferred string ["video"]
video-type Identify the type of video content inferred enums: ["Movie", "TV series", "News", "Others"] [ "video" ]

主题演讲要点的蓝图字段示例

字段 说明 提取类型 类型 粒度
broadcast-setting The physical setting or environment where the broadcast or training session is taking place. inferred enums["conference hall", "classroom", "outdoor venue", "Others", "Not applicable to the video"] [ "video" ]
broadcast-audience-engagement The level of engagement or interaction between the speakers and the audience. inferred enums["interactive", "passive", "Not applicable to the video"] ["video"]
broadcast-visual-aids A list of notable visual aids or materials used during the presentation, such as slides, diagrams, or demonstrations. inferred Array of strings ["video"]
broadcast-audience-size The size of the audience present at the event. inferred enums["large crowd", "medium crowd", "small group", "Not applicable to this video"] [ "chapter" ]
broadcast-presentation-topics A list of key topics, subjects, or themes covered in the presentation or training session. inferred enums: ["Movie", "TV series", "News", "Others"] [ "video" ]

用于广告分析的蓝图字段示例

字段 说明 提取类型 类型 粒度
ads-video-ad-categories The ad categories for the video inferred enums["Health and Beauty", "Weight Loss", "Food and Beverage", "Restaurants", "Political", "Cryptocurrencies and NFT", "Money Lending and Finance", "Tobacco", "Other", "Video is not an advertisement"] [ "video" ]
ads-video-language The primary language of the advertisement inferred string ["video"]
ads-video-primary-brand The main brand or company being advertised in the video. inferred string ["video"]
ads-video-main-message The primary message or tagline conveyed in the advertisement inferred string [ "video" ]
ads-video-message-clarity How clear and understandable the main message of the advertisement is inferred enums: ["clear", "ambiguous", "Not applicable to the video"] [ "video" ]
ads-video-target-audience-interests Specific interests or hobbies that the target audience is likely to have inferred Array of strings [ "video" ]
ads-video-product-type The category or type of product being advertised inferred enums: ["electronics", "apparel", "food_and_beverage", "automotive", "home_appliances", "other", "Not applicable to the video"] [ "video" ]
ads-video-product-placement The way the product is positioned or showcased in the advertisement inferred enums: ["front_and_center", "background", "held_by_person", "other", "Not applicable to the video"] [ "video" ]
ads-video-product-features The key features or specifications of the advertised product highlighted in the video inferred Array of strings [ "video" ]
ads-video-number-of-products The number of distinct products or variations featured in the advertisement inferred number [ "video" ]

视频还支持实体数组类型，这有助于在视频内容中识别和定位特定实体。此功能返回一个由检测到的实体组成的数组。以下是客户蓝图中实体数组的示例：


  "field_name": {
        "items": {
            "$ref": "bedrock-data-automation#/definitions/Entity"
        },
        "type": "array",
        "instruction": "Please detect all the visually prominent objects in the video",
        "granularity": [
            "chapter"
        ]
    }
注意

bedrock-data-automation#/definitions/Entity 是 BDA 拥有的服务类型。您可以使用以下架构解析结果。


       {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "$id": "bedrock-data-automation",
        "type": "object",
        "definitions": {
            "BoundingBox": {
                "type": "object",
                "additionalProperties": false,
                "properties": {
                    "left": {
                        "type": "number"
                    },
                    "top": {
                        "type": "number"
                    },
                    "width": {
                        "type": "number"
                    },
                    "height": {
                        "type": "number"
                    }
                }
            },
            "Entity": {
                "type": "object",
                "additionalProperties": false,
                "properties": {
                    "label": {
                        "type": "string"
                    },
                    "bounding_box": {
                        "$ref": "bedrock-data-automation#/definitions/BoundingBox"
                    },
                    "confidence": {
                        "type": "number"
                    }
                }
            }
        },
        "properties": {}
    }