背景
** Google Veo 3** 是谷歌 DeepMind 于 2025 年 5 月推出的第三代 AI 视频生成模型，在视听同步、画质表现、创作控制等方面实现了显著突破，
视听协同生成
原生音频同步技术：支持文本或图像生成视频时同步创建多维度音频，包括对话、环境噪音、音效及背景音乐。例如输入 “雨天咖啡馆中两人交谈” 的提示词，模型会自动生成雨声、杯盘碰撞声及匹配口型的对话音频，音画同步精度达 99.8%。
多语言音频适配： 可识别多种语言的提示词，并生成对应语言的自然语音，支持不同语种的口型精准匹配，满足全球创作者需求。
多模态输入支持：兼容文本、静态图像、视频剪辑等多种输入方式，可基于参考图像保持角色、场景或艺术风格的一致性，例如通过上传角色设计图，确保其在多段视频中视觉统一。
灵活编辑工具： 提供物体添加 / 移除功能，AI 可自动调整物体与环境的比例、阴影及交互关系；支持指定物体运动轨迹，实现角色动画或自然元素（如织物飘动、水流）的连贯运动。
风格与镜头控制：通过参考图像或风格提示词，可生成逼真写实、卡通动画、特定电影风格等多样化视觉效果；支持自定义相机平移、缩放、跟踪等运动参数，动态调整场景叙事节奏。
Flash 2.5 Image生成图片
{
"scene": "mirror_selfie_otaku_pc_corner_blue",
"subject": {
"gender_presentation": "female",
"age_bracket": "mid_20s",
"ethnicity": "East Asian.
"build": "slim with defined waist; natural proportions",
"skin_tone": "light neutral",
"hair": { "length": "very long", "style": "straight with slight wave ends", "color": "medium brown" },
"pose": {
"stance": "standing, slight contrapposto",
"right_hand": "holding phone in front of face (identity obscured)",
"left_arm": "relaxed alongside torso",
"torso": "subtle arch; midriff visible"
},
"wardrobe": {
"top": "baby-blue cropped knit cardigan, two buttons fastened; blue bralette subtly visible",
"bottom": "denim micro-shorts with blue satin ribbon bows at both hips",
"socks": "thigh-high blue-and-white horizontal stripes",
"accessories": { "phone_case": "blue cute mascot case" }
}
},
"environment": {
"description": "bedroom PC corner seen in a wall mirror",
"furnishings": [
"white desk",
"single monitor with pastel blue wallpaper (no readable text)",
"mechanical keyboard with white keycaps on blue desk mat",
"mouse on small blue mousepad",
"PC tower to the right with blue case lighting",
"three anime figures on/near the PC",
"pagoda poster on wall",
"cat-shaped desk lamp with blue accent",
"clear glass of water",
"tall leafy plant by window (camera-left)"
],
"color_swap": "replace all former pink accents in wardrobe and room with blue (baby blue → sky/periwinkle)."
},
"lighting": {
"source": "daylight from large window camera-left through sheer curtain",
"quality": "soft diffused",
"white_balance_K": 5200
},
"camera": {
"mode": "smartphone rear camera via mirror (no portrait/bokeh mode)",
"focal_length_eq_mm": 26,
"distance_m": { "subject_to_mirror": 0.6, "camera_to_mirror": 0.5 },
"exposure": { "aperture_f": 1.8, "iso": 100, "shutter_s": 0.01, "ev_comp": -0.3 },
"focus": "torso and shorts in reflection",
"depth_of_field": "natural smartphone DOF (deep); background readable, no artificial blur",
"framing": {
"aspect_ratio": "1:1",
"crop": "top of head to mid-thigh; include desk, monitor, PC, and plant",
"angle": "slight downward tilt from mirror viewpoint",
"composition_notes": "keep subject centered; avoid wide-edge stretching by stepping back and cropping square"
}
},
"negatives": [
"pink/magenta accents anywhere",
"beauty-filter/airbrushed skin; poreless look",
"exaggerated or distorted anatomy",
"NSFW, see-through fabric, wardrobe malfunction",
"logos, brand names, readable UI text",
"fake portrait-mode blur, CGI/illustration look"
]
}
Veo3生成视频
结论
Google Veo3 模型凭借其强大的视频生成能力、音画同步技术及多模态适配特性，在多个行业和领域展现出广泛的应用价值。
