NVIDIA Cosmos 3发布(COMPUTEX 2026) 2026年5月31日,NVIDIA在COMPUTEX发布Cosmos 3 ——全球首个全开放物理AI世界模型。
核心特性
特性
描述
全模态支持
文本、图像、视频、环境音、动作序列
视觉推理
理解物理场景、预测未来状态
合成数据生成
从文本/图像生成逼真物理场景视频
物理准确性
遵循物理规律的世界模拟
开放权重
Super/Nano版本开源在Hugging Face
训练规模
数据类型
规模
总Token数
20万亿
图像
近10亿张
视频
4亿段(真实+合成)
环境音
大规模音频数据
动作数据
人类+机器人动作序列
IMS数据合成的必要性 真实数据采集的痛点
痛点
影响
解决方案
极端场景稀缺
疲劳/分心样本不足
合成多样化场景
标注成本高
$10-50/帧
自动生成标注
隐私合规
人脸数据受限
虚拟人物生成
场景覆盖不全
特定光照/姿态缺失
参数化控制
传感器差异
不同摄像头需重新采集
域适应合成
Euro NCAP 2026数据需求
功能模块
场景数
所需样本数
合成比例
疲劳检测
5个
50,000+
60-70%
分心检测
8个
80,000+
70-80%
CPD儿童检测
6个
60,000+
80-90%
OOP异常姿态
6个
60,000+
70-80%
安全带误用
5个
50,000+
60-70%
总计
30+
300,000+
~70%
结论: Euro NCAP 2026要求需要大量合成数据补充真实数据不足。
NVIDIA数据合成技术栈 完整生态 flowchart TB
subgraph 数据源
REAL[真实数据<br>采集]
OPENUSD[OpenUSD资产<br>SimReady]
NU_REC[NuRec重建<br>3D场景]
end
subgraph NVIDIA平台
OMNIVERSE[Omniverse平台<br>USD协作]
ISAAC[Isaac Sim<br>机器人仿真]
COSMOS[Cosmos 3<br>世界模型]
end
subgraph 数据生成
REPLICATOR[Replicator<br>随机化引擎]
TRANSFER[Cosmos Transfer<br>风格迁移]
PREDICT[Cosmos Predict<br>未来预测]
end
subgraph 输出
SYNTH_DATA[合成数据集<br>自动标注]
AUG_DATA[增强数据<br>真实+合成]
end
REAL --> OMNIVERSE
OPENUSD --> ISAAC
NU_REC --> ISAAC
OMNIVERSE --> REPLICATOR
ISAAC --> REPLICATOR
COSMOS --> TRANSFER
COSMOS --> PREDICT
REPLICATOR --> SYNTH_DATA
TRANSFER --> AUG_DATA
PREDICT --> SYNTH_DATA
Isaac Sim:物理仿真平台 核心能力:
能力
描述
物理仿真
刚体、软体、流体仿真
传感器仿真
RGB、IR、深度、雷达
光照仿真
全局光照、阴影、反射
人物仿真
Metahuman集成
车辆动力学
车辆运动仿真
座舱场景构建:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 from omni.isaac.kit import SimulationAppfrom omni.isaac.core import Worldfrom omni.isaac.core.utils.stage import add_reference_to_stageclass CabinSimulation : """座舱仿真环境""" def __init__ (self ): self .simulation_app = SimulationApp({"headless" : True }) self .world = World(stage_units_in_meters=1.0 ) self .load_cabin_assets() def load_cabin_assets (self ): """加载座舱资产""" add_reference_to_stage( "omniverse://localhost/NVIDIA/Assets/Vehicles/Cabin.usd" ) add_reference_to_stage( "omniverse://localhost/NVIDIA/Assets/Characters/Metahuman_Driver.usd" ) add_reference_to_stage( "omniverse://localhost/NVIDIA/Assets/Sensors/DMS_Camera.usd" ) def configure_lighting (self, lighting_type='day' ): """配置光照""" if lighting_type == 'day' : intensity = 50000 color = (1.0 , 0.95 , 0.9 ) elif lighting_type == 'night' : intensity = 100 color = (0.1 , 0.1 , 0.1 ) elif lighting_type == 'tunnel' : intensity = 500 color = (0.9 , 0.85 , 0.8 ) self .world.scene.set_lighting(intensity, color) def generate_driver_pose (self, pose_type='normal' ): """生成驾驶员姿态""" from omni.isaac.core.articulations import Articulation driver = Articulation("/World/Driver" ) if pose_type == 'normal' : joint_positions = [0.0 ] * driver.num_joints elif pose_type == 'fatigue' : joint_positions = self ._get_fatigue_pose(driver) elif pose_type == 'distraction' : joint_positions = self ._get_distraction_pose(driver) driver.set_joint_positions(joint_positions) def _get_fatigue_pose (self, driver ): """疲劳姿态参数""" return [0.0 , -0.5 , -0.2 ] + [0.0 ] * (driver.num_joints - 3 ) def generate_synthetic_data (self, num_samples=1000 ): """生成合成数据""" from omni.replicator.core import AnnotatorRegistry, Randomizer camera = self .world.scene.get_object("DMS_Camera" ) annotators = AnnotatorRegistry.get_annotators( ["rgb" , "instance_segmentation" , "bounding_box_2d" ] ) randomizer = Randomizer() for i in range (num_samples): lighting_type = randomizer.choice(['day' , 'night' , 'tunnel' ]) self .configure_lighting(lighting_type) pose_type = randomizer.choice(['normal' , 'fatigue' , 'distraction' ]) self .generate_driver_pose(pose_type) self .randomize_driver_attributes() self .world.step(render=True ) annotations = annotators.get_annotations() self .save_sample(annotations, i, pose_type, lighting_type) def randomize_driver_attributes (self ): """随机化驾驶员属性""" pass def save_sample (self, annotations, index, pose_type, lighting_type ): """保存样本""" import cv2 import json rgb = annotations['rgb' ] cv2.imwrite(f"output/rgb_{index} .png" , rgb) label = { 'pose_type' : pose_type, 'lighting' : lighting_type, 'bounding_boxes' : annotations['bounding_box_2d' ], 'instance_ids' : annotations['instance_segmentation' ] } with open (f"output/label_{index} .json" , 'w' ) as f: json.dump(label, f) def cleanup (self ): """清理仿真""" self .simulation_app.close()if __name__ == '__main__' : sim = CabinSimulation() sim.generate_synthetic_data(num_samples=1000 ) sim.cleanup()
Cosmos 3:世界模型生成 三种模型变体:
模型
用途
参数量
部署场景
Cosmos Transfer
风格迁移、域适应
~10B
真实数据增强
Cosmos Predict
未来预测、序列生成
~20B
场景连续性
Cosmos Reason
物理推理、决策
~70B
高级任务规划
Cosmos Transfer:真实数据增强
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 from transformers import AutoModel, AutoProcessorimport torchclass CosmosTransferPipeline : """ Cosmos Transfer:风格迁移增强真实数据 应用场景: - 白天 → 夜间(IR风格) - 晴天 → 雨天 - 不同车型座舱风格 """ def __init__ (self, model_name="nvidia/cosmos-transfer-2.5" ): self .model = AutoModel.from_pretrained(model_name) self .processor = AutoProcessor.from_pretrained(model_name) self .device = torch.device("cuda" if torch.cuda.is_available() else "cpu" ) self .model.to(self .device) def transfer_style (self, image, style_prompt, strength=0.7 ): """ 风格迁移 Args: image: 输入图像(RGB) style_prompt: 风格提示词 strength: 迁移强度(0-1) Returns: transferred_image: 迁移后图像 """ inputs = self .processor( images=image, text=style_prompt, return_tensors="pt" , strength=strength ) inputs = {k: v.to(self .device) for k, v in inputs.items()} with torch.no_grad(): outputs = self .model.generate(**inputs) transferred_image = self .processor.postprocess(outputs) return transferred_image def augment_dms_dataset (self, dataset, augmentation_config ): """ 增强DMS数据集 Args: dataset: 原始数据集 augmentation_config: 增强配置 Returns: augmented_dataset: 增强后数据集 """ augmented_samples = [] style_variations = augmentation_config.get('styles' , [ 'night infrared scene, monochrome, low light' , 'rainy day through windshield, water droplets' , 'sunset golden hour, warm lighting' , 'tunnel artificial lighting, fluorescent' ]) for sample in dataset: image = sample['image' ] label = sample['label' ] augmented_samples.append(sample) for style in style_variations: transferred = self .transfer_style(image, style, strength=0.6 ) augmented_samples.append({ 'image' : transferred, 'label' : label, 'style' : style }) return augmented_samplesif __name__ == '__main__' : pipeline = CosmosTransferPipeline() config = { 'styles' : [ 'night infrared monochrome driver monitoring' , 'rainy day cabin interior water droplets' , 'golden hour sunset warm cabin lighting' ] }
OpenUSD:3D资产标准 SimReady资产库:
资产类型
数量
用途
车辆模型
50+
不同车型座舱
人物模型
100+
Metahuman驾驶员
座椅模型
30+
不同座椅类型
传感器模型
20+
摄像头、雷达
光照预设
15+
白天/夜间/隧道
USD场景构建:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 from pxr import Usd, UsdGeom, UsdLux, Gf, Sdfclass USDCabinBuilder : """ 使用OpenUSD构建座舱场景 """ def __init__ (self, stage_path ): self .stage = Usd.Stage.CreateNew(stage_path) self .define_root_prim() def define_root_prim (self ): """定义根节点""" self .root = UsdGeom.Xform.Define(self .stage, '/Cabin' ) self .stage.SetDefaultPrim(self .root.GetPrim()) def add_camera (self, name, position, rotation, fov=60 ): """添加DMS摄像头""" camera_path = f'/Cabin/{name} ' camera = UsdGeom.Camera.Define(self .stage, camera_path) camera.CreateProjectionAttr().Set (UsdGeom.Tokens.perspective) camera.CreateHorizontalApertureAttr().Set (36.0 ) camera.CreateFocalLengthAttr().Set (36.0 / (2 * np.tan(np.radians(fov/2 )))) xform = UsdGeom.Xformable(camera) xform_op = xform.AddXformOp(UsdGeom.XformOp.TypeTransform) transform = Gf.Matrix4d() transform.SetTranslate(position) transform.SetRotate(Gf.Rotation(Gf.Vec3d(1 , 0 , 0 ), rotation[0 ])) xform_op.Set (transform) return camera def add_driver (self, usd_path, position ): """添加驾驶员Metahuman""" driver_prim = self .stage.DefinePrim('/Cabin/Driver' , 'Xform' ) driver_prim.GetReferences().AddReference(usd_path) xform = UsdGeom.Xformable(driver_prim) xform_op = xform.AddXformOp(UsdGeom.XformOp.TypeTranslate) xform_op.Set (Gf.Vec3d(*position)) def add_lighting (self, lighting_type='day' ): """添加光照""" light_path = '/Cabin/Lighting' light = UsdLux.DistantLight.Define(self .stage, light_path) if lighting_type == 'day' : light.CreateIntensityAttr().Set (50000 ) light.CreateColorAttr().Set (Gf.Vec3f(1.0 , 0.95 , 0.9 )) elif lighting_type == 'night' : light.CreateIntensityAttr().Set (100 ) light.CreateColorAttr().Set (Gf.Vec3f(0.1 , 0.1 , 0.1 )) return light def save (self ): """保存USD文件""" self .stage.GetRootLayer().Save()
完整数据合成流程 端到端管道 flowchart TB
subgraph 场景定义
PROMPT[文本提示<br>疲劳驾驶场景]
USD[USD资产<br>座舱+驾驶员]
end
subgraph Isaac Sim仿真
PHYSICS[物理仿真<br>姿态+动作]
RENDER[渲染<br>RGB+IR+深度]
ANNOT[自动标注<br>边界框+关键点]
end
subgraph Cosmos增强
TRANSFER[风格迁移<br>多光照/天气]
PREDICT[未来预测<br>序列生成]
end
subgraph 质量控制
FILTER[质量过滤<br>真实感评估]
DEDUP[去重<br>避免重复]
end
subgraph 输出
DATASET[合成数据集<br>IMS训练]
end
PROMPT --> PHYSICS
USD --> PHYSICS
PHYSICS --> RENDER
RENDER --> ANNOT
ANNOT --> TRANSFER
TRANSFER --> PREDICT
PREDICT --> FILTER
FILTER --> DEDUP
DEDUP --> DATASET
生产级工作流 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 class IMSDataSynthesisPipeline : """ IMS数据合成完整管道 """ def __init__ (self, config ): self .config = config self .simulation = CabinSimulation() self .cosmos_transfer = CosmosTransferPipeline() self .stats = { 'total_samples' : 0 , 'by_type' : {}, 'by_lighting' : {} } def run (self, num_samples=10000 ): """ 执行数据合成 Args: num_samples: 目标样本数 """ print (f"开始生成 {num_samples} 个合成样本..." ) samples_per_combination = num_samples // (len (self .config['pose_types' ]) * len (self .config['lighting_types' ])) for pose_type in self .config['pose_types' ]: for lighting in self .config['lighting_types' ]: print (f"\n生成:{pose_type} + {lighting} " ) base_samples = self .simulation.generate_samples( pose_type=pose_type, lighting_type=lighting, num_samples=samples_per_combination // 4 ) augmented_samples = self .cosmos_transfer.augment( base_samples, styles=self .config['style_variations' ] ) self .save_samples(augmented_samples, pose_type, lighting) self .stats['total_samples' ] += len (augmented_samples) self .stats['by_type' ][pose_type] = self .stats['by_type' ].get(pose_type, 0 ) + len (augmented_samples) self .stats['by_lighting' ][lighting] = self .stats['by_lighting' ].get(lighting, 0 ) + len (augmented_samples) print (f"\n完成!总样本数:{self.stats['total_samples' ]} " ) self .print_stats() def save_samples (self, samples, pose_type, lighting ): """保存样本到磁盘""" import os import json import cv2 output_dir = f"output/{pose_type} /{lighting} " os.makedirs(output_dir, exist_ok=True ) for i, sample in enumerate (samples): image_path = os.path.join(output_dir, f"{i:06d} .png" ) cv2.imwrite(image_path, sample['image' ]) label_path = os.path.join(output_dir, f"{i:06d} .json" ) with open (label_path, 'w' ) as f: json.dump(sample['label' ], f) def print_stats (self ): """打印统计信息""" print ("\n数据集统计:" ) print (f"总样本数:{self.stats['total_samples' ]} " ) print ("\n按姿态类型:" ) for pose_type, count in self .stats['by_type' ].items(): print (f" {pose_type} : {count} " ) print ("\n按光照类型:" ) for lighting, count in self .stats['by_lighting' ].items(): print (f" {lighting} : {count} " )if __name__ == '__main__' : config = { 'pose_types' : ['normal' , 'fatigue' , 'distraction' , 'drowsy' ], 'lighting_types' : ['day' , 'night' , 'tunnel' , 'rainy' ], 'style_variations' : [ 'infrared monochrome night vision' , 'golden hour warm lighting' , 'rainy windshield water droplets' , 'tunnel fluorescent lighting' ] } pipeline = IMSDataSynthesisPipeline(config) pipeline.run(num_samples=50000 )
与Anyverse/SkyEngine对比
特性
NVIDIA Cosmos/Isaac
Anyverse
SkyEngine rFpro
物理准确性
✅ 高(基于物理仿真)
🟡 中(侧重视觉)
✅ 高(汽车专用)
开放性
✅ 开源(OpenUSD)
❌ 商业闭源
❌ 商业闭源
成本
✅ 免费(自建)
🟡 $$
🟡 $$$
定制性
✅ 完全可控
🟡 受限
🟡 受限
Metahuman集成
✅ 原生支持
❌
🟡 有限
传感器仿真
✅ 全面(RGB+IR+深度+雷达)
🟡 RGB为主
✅ 全面
自动化标注
✅ 完全自动
✅
✅
优势: NVIDIA方案开源、免费、高度定制,适合IMS研发团队。
IMS应用启示 开发路线图 gantt
title 数据合成能力建设
dateFormat YYYY-MM-DD
section 基础搭建
Omniverse环境搭建 :a1, 2026-01-01, 14d
OpenUSD资产采集 :a2, after a1, 30d
Isaac Sim学习 :a3, after a1, 20d
section 场景构建
座舱场景建模 :b1, after a2, 30d
驾驶员Metahuman集成 :b2, after b1, 20d
DMS摄像头配置 :b3, after b2, 10d
section 数据生成
疲劳场景生成 :c1, after b3, 20d
分心场景生成 :c2, after c1, 20d
CPD场景生成 :c3, after c2, 20d
section 集成应用
合成数据训练 :d1, after c3, 30d
真实数据验证 :d2, after d1, 20d
域适应优化 :d3, after d2, 20d
硬件需求
硬件
最低配置
推荐配置
GPU
RTX 3080 (10GB)
RTX 4090 (24GB)
内存
32GB
64GB
存储
500GB SSD
2TB NVMe
CPU
8核
16核
产出目标
阶段
目标
Q1 2026
基础场景构建完成
Q2 2026
生成50,000+合成样本
Q3 2026
模型训练验证通过
Q4 2026
生产环境部署
总结 NVIDIA Cosmos 3 + Isaac Sim提供完整的开源数据合成方案,为IMS研发提供:
关键优势:
物理准确: 基于物理仿真,真实感强
自动标注: 无需人工标注,降低成本
场景丰富: 参数化控制,覆盖极端场景
开源免费: 无许可成本,完全可控
开发优先级:高 (MEMORY.md明确标注)
下一步:
搭建Omniverse开发环境
采集OpenUSD座舱资产
集成Metahuman驾驶员
构建自动化数据生成管道