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ICCV 2025|训练太复杂?对图片语义、布局要求太高?图像morphing终于一步到位
机器之心· 2025-07-18 08:38
核心观点 - FreeMorph是一种无需训练、一步到位的图像变形方法,能够在不同语义与布局的图像之间生成流畅自然的过渡效果 [5] - 该方法通过改进扩散模型的自注意力机制,解决了传统方法中训练成本高、适应性差的问题 [5][11] - FreeMorph在30秒内即可为两张输入图像生成高质量平滑过渡,显著优于现有技术 [32] 技术背景 - 传统图像变形技术依赖复杂的图像对齐算法和颜色插值,难以处理复杂纹理和多样语义的图像 [4] - 现有深度学习方法如GAN、VAE存在训练成本高、数据依赖强、反演不稳定等问题 [4] - 基于Stable Diffusion和CLIP等大模型的方法仍面临训练时间长(约30分钟/案例)和语义处理能力不足的挑战 [9] 技术方案 - 引导感知的球面插值:通过修改预训练扩散模型的自注意力模块,融入输入图像的显式引导来增强模型 [11] - 球面特征聚合融合自注意力模块的Key和Value特征,确保过渡一致性 [16] - 先验引导的自注意力机制保留输入图像的独特身份特征 [18] - 步骤导向的变化趋势:融合两个输入图像的自注意力模块,实现受控且一致的过渡 [21] - 改进的反向去噪和正向扩散过程:将创新组件集成到原始DDIM框架中 [22][25] 技术优势 - 无需训练或调参,仅需两张输入图像即可完成变形 [5] - 处理时间仅需30秒,显著快于现有方法(如IMPUS需要30分钟) [32] - 能够处理语义多样、布局复杂的图像对,保持身份特征和平滑过渡 [27][30] - 在四组不同类别的评估数据集上表现优异 [12] 应用前景 - 可应用于动画、电影特效或照片编辑等领域 [3] - 能够捕捉细微变化,如不同颜色的蛋糕或人物表情的微妙差异 [27] - 为training-free图像变形打开了新的可能性 [5] 技术局限 - 处理语义或布局差异较大的图像时,过渡可能不够平滑 [34] - 继承了Stable Diffusion的固有偏差,在人体四肢等结构处理上准确性受影响 [34]
The RealReal Announces Timing of Its Second Quarter 2025 Earnings Conference Call
Globenewswire· 2025-07-18 04:05
SAN FRANCISCO, July 17, 2025 (GLOBE NEWSWIRE) -- The RealReal (Nasdaq: REAL)—the world’s largest online marketplace for authenticated, resale luxury goods—today announced that it will release its financial results for the second quarter, ended June 30, 2025, after the market closes on August 7, 2025. The RealReal will host a conference call at 2:00 p.m. Pacific Time (5:00 p.m. Eastern Time) to review its financial results. A live webcast of the conference call will be available online at investor.therealrea ...
Toll Brothers Announces New Luxury Home Community Coming Soon to Bulverde, Texas
Globenewswire· 2025-07-18 01:30
BULVERDE, Texas, July 17, 2025 (GLOBE NEWSWIRE) -- Toll Brothers, Inc. (NYSE:TOL), the nation’s leading builder of luxury homes, today announced its newest San Antonio-area community, Toll Brothers at Thornebrook, is coming soon to Bulverde, Texas. This Toll Brothers community, located at 1018 Rapidan Lane in Bulverde, is expected to open for sale in fall 2025. This exclusive gated neighborhood by Toll Brothers will offer modern single-family home designs on expansive one-acre home sites. Homes will feature ...
Toll Brothers Announces New Phase of Luxury Home Sites in Point Hope Community in Charleston, South Carolina
Globenewswire· 2025-07-18 01:25
文章核心观点 - 托尔兄弟公司宣布南卡罗来纳州查尔斯顿的希望角社区推出新阶段住宅用地,该社区有优质设计、丰富便利设施和个性化选择,提供理想奢华生活体验 [1][4] 项目概况 - 希望角社区位于查尔斯顿市,距丹尼尔岛、芒特普莱森特和526号州际公路仅数分钟路程,拥有低地美景、优质便利设施和现代便利设施 [1] - 社区推出新阶段住宅用地,提供新的沿海现代住宅设计,面积2135至3922+平方英尺,有3至5间卧室、2.5至4.5间浴室等,户外生活空间与主要起居区相邻,房屋起价70多万美元 [1][2] 生活便利与设施 - 居民可享受理想生活方式,新房靠近以布利克斯超市为核心的购物中心,周边有多种便利设施,还可使用现场游泳池、自然和健身步道、自行车道和公园等设施,孩子可就读伯克利县知名学校 [4] - 居民可轻松前往未来的杜利特尔公园,公园有两个室外游泳池、球拍运动场地、娱乐中心等,社区还有连接商店、餐厅、学校等的数英里长步道网络 [5] 个性化服务与购房选择 - 托尔兄弟客户可在设计工作室一站式购物,在专业设计顾问协助下个性化定制梦想家园,社区还有带设计师指定特色的快速入住房屋,购房者有望年底前入住 [6] 公司介绍 - 托尔兄弟公司是美国领先的豪华住宅建筑商,1967年成立,1986年上市,服务多种类型购房者和租客,在24个州60多个市场开展业务,运营多个子公司,开发多种社区及相关业务 [9] - 公司连续10多年入选《财富》杂志“全球最受尊敬公司”,2024年董事长兼首席执行官被《巴伦周刊》评为25位顶级首席执行官之一,还获《建筑商》杂志“年度建筑商”等荣誉 [10] 联系方式 - 托尔兄弟销售中心位于查尔斯顿哈里曼巷1017号,咨询希望角及查尔斯顿地区社区信息可致电(866) 232 - 1719或访问TollBrothers.com/SC [7]
New Toll Brothers 55+ Active-Adult Community is Coming Soon to Missouri City, Texas
Globenewswire· 2025-07-17 04:03
MISSOURI CITY, Texas, July 16, 2025 (GLOBE NEWSWIRE) -- Toll Brothers, Inc. (NYSE:TOL), the nation’s leading builder of luxury homes, today announced its newest Houston-area community, Regency at Sienna, an exclusive 55+ active-adult neighborhood, is coming soon to the master-planned community of Sienna in Missouri City, Texas. Regency will join the six other collections of new single-family homes that Toll Brothers is building within Sienna. Construction of the Regency Sales Center and model homes is set t ...
Toll Brothers Announces New Luxury Home Community Coming Soon to The Pinehills in Plymouth, Massachusetts
Globenewswire· 2025-07-17 03:02
PLYMOUTH, Mass., July 16, 2025 (GLOBE NEWSWIRE) -- Toll Brothers, Inc. (NYSE:TOL), the nation’s leading builder of luxury homes, today announced its newest community, Toll Brothers at The Pinehills — Broadleaf, is coming soon to the award-winning Pinehills master plan in Plymouth, Massachusetts. This exclusive Toll Brothers neighborhood will feature new luxury townhomes within walking distance of the Village Green. Sales are anticipated to begin in fall 2025. Artfully crafted and designed to enhance the lif ...
Toll Brothers Announces New Luxury Home Community Coming Soon to San Tan Valley, Arizona
Globenewswire· 2025-07-17 02:51
SAN TAN VALLEY, Ariz., July 16, 2025 (GLOBE NEWSWIRE) -- Toll Brothers, Inc. (NYSE:TOL), the nation’s leading builder of luxury homes, today announced its newest community, Toll Brothers at Ladera Trails, is coming soon to San Tan Valley, Arizona. This private gated neighborhood will feature an array of luxury amenities and expansive home sites. Construction of the model homes is underway at N Thompson Rd and W Phillips Rd in San Tan Valley, and sales will begin in late summer 2025. Located at the foothills ...
3 Reasons Growth Investors Will Love Ferrari (RACE)
ZACKS· 2025-07-17 01:46
Growth investors focus on stocks that are seeing above-average financial growth, as this feature helps these securities garner the market's attention and deliver solid returns. But finding a great growth stock is not easy at all.By their very nature, these stocks carry above-average risk and volatility. Moreover, if a company's growth story is over or nearing its end, betting on it could lead to significant loss.However, the Zacks Growth Style Score (part of the Zacks Style Scores system), which looks beyon ...
ICML 2025|多模态理解与生成最新进展:港科联合SnapResearch发布ThinkDiff,为扩散模型装上大脑
机器之心· 2025-07-16 12:21
多模态理解与生成技术进展 - 当前文本到图像生成技术如Stable Diffusion和Flux缺乏真正的多模态推理能力,难以理解图像与文本的复杂逻辑关系[1] - OpenAI的GPT-4o和Google的Gemini Pro展示了强大能力,但依赖超大规模参数和算力资源[2] - 香港科技大学与Snap Research提出的ThinkDiff方法,仅需少量数据和数小时训练即可实现多模态推理式生成[3] ThinkDiff核心技术 - 核心创新在于将视觉语言模型(VLM)的推理能力迁移至扩散模型,结合两者优势实现高质量生成[7] - 利用LLM与Diffusion共享特征空间的特性,通过代理任务将VLM与LLM解码器对齐[9][11] - 采用掩码训练策略强制对齐网络深度理解多模态信息,避免特征对齐走捷径[15] 模型架构与变体 - ThinkDiff-LVLM版本继承大型视觉语言模型的多模态理解能力[16] - ThinkDiff-CLIP版本强化文本图像组合能力,可扩展至视频生成领域[16][34] - 网络设计关键:对齐VLM自回归生成的tokens特征而非输入tokens,实现真正的推理能力传递[15] 性能表现 - 在CoBSAT基准测试中全面领先:Color-I准确率0.638(较SEED-LLaMA提升32.4%),Action-II准确率0.664(提升220.8%)[19] - 训练效率显著:仅用4块A100训练5小时即达0.463平均准确率,远优于需64块A100训练216小时的SEED-LLaMA[21] - 定性测试显示其生成质量与商业模型Gemini相当,且具备视频生成扩展能力[25][34] 行业影响 - 突破性解决低资源环境下的多模态推理难题,为学术研究和工业应用提供新路径[3][36] - 开创扩散模型理解复杂图文组合的新范式,显著提升生成式AI的语义理解深度[7][15] - 技术方案具备高度可扩展性,可适配不同VLM架构并延伸至视频生成领域[16][34]
Tariffs Scare Third-Party Sellers: Here's How Amazon is Handling it
ZACKS· 2025-07-16 01:55
亚马逊第三方卖家业务表现 - 2025年第一季度全球付费商品销售总量中61%来自第三方卖家 [1] - 第三方卖家服务净销售额达365亿美元,同比增长55%,占总营收235% [2] - 2025年第二季度该业务收入共识预期为388亿美元 [2] 关税政策影响与应对措施 - 美国对中国进口商品关税从145%降至30%,影响依赖中国制造的卖家 [3] - 部分卖家为保护利润率减少Prime Day促销参与度 [3] - 公司通过提前备货、延长活动周期及动态调整促销策略稳定价格和库存 [4] - 2025年Prime Day第三方卖家实现创纪录销售额 [4] 第三方市场竞争格局 - eBay 2025年Q1 GMV达188亿美元,依托AI列表和奢侈品认证服务吸引134万活跃买家 [5] - Etsy拥有540万活跃卖家和8900万买家,通过个性化工具强化小众市场优势 [6] 公司财务与估值 - 2025年迄今股价上涨3%,落后于互联网电商行业79%和零售批发行业51%的涨幅 [7] - 当前远期12个月市销率为328倍,高于行业平均217倍 [11] - 2025年Q2每股收益共识预期132美元,过去30天上调1美分,预示732%同比增长 [15]