如何从一张普通的单幅图像准确估计物体的三维法线和材质属性，是计算机视觉与图形学领域长期关注的难题。 这种单图逆渲染任务存在严重的不确定性，传统方法通常需要多角度或多光源的拍摄条件，难以在日常场景中普遍应用。 近日，由香港中文大学、上海人工智能实验室及南洋理工大学的研究团队联合研发的论文《Neural LightRig: Unlocking Accurate Object Normal and Material Estimation with Multi-Light Diffusion》。 其成果已被计算机视觉顶级会议CVPR 2025正式接收。 Neural LightRig团队 投稿 量子位 | 公众号 QbitAI Neural LightRig创新性地提出利用图像扩散模型（如Stable Diffusion）的强大先验信息，生成虚拟的多光照图像，从而有效解决单图估计法 线和PBR材质过程中存在的不确定性问题。 研究团队首次提出通过微调预训练的图像扩散模型，生成不同光照条件下的一致性多光照图像序列，这种方法有效减少了单图估计过程中的内 在不确定性。 混合条件策略 ：通过通道级别的图像拼接与参考注意力机制的 ...

文 | 胡炜（新京报传媒研究院） 短视频很火爆，长视频还好吗？ 最新成绩来了，长视频没有"躺平"：3月26日，《中国网络视听发展研究报告（2025）》在第十二届中 国网络视听大会上发布，其中"长视频用户规模达7.52亿，创2018年以来新高"的数据引发广泛关注。 用户规模等数据的增长究竟是"昙花一现"，还是意味着长视频要开启属于自己的"漫长的季节"？ 01 双重突破 近年来，短视频的强势崛起对长视频行业造成了巨大冲击。 短视频凭借其短小精悍、内容丰富、传播迅速等特点，迅速吸引了大量用户，用户规模和使用时长均大 幅领先于长视频，成为网络视听领域的"霸主"。 然而，长视频行业并未因此停滞不前。 《中国网络视听发展研究报告（2025）》显示，长视频不仅实现用户规模创六年新高，还呈现结构"年 轻化"与"高知化"特点，20-29岁年轻群体和本科及以上学历用户对长视频的使用率在86%左右，较整体 高出近20个百分点。 随着生活水平的提高，人们对精神文化消费的需求不断增加，对内容的品质和深度有了更高的要求。长 视频平台的精品化战略正好满足了这一需求，在深度内容消费方面具有不可替代的地位，用户在观看长 视频时，可以获得更完整 ...

Core Viewpoint - Meta's Reality Labs is not a liability but rather a significant asset that enhances its attractiveness among the Magnificent Seven (Mag7) companies, supported by an appealing valuation, making it a buy opportunity [1][14]. Group 1: Financial Performance and Market Position - Meta's Family of Apps generates substantial cash flow, allowing investors to overlook the losses from Reality Labs, which has seen operating losses increase since its rebranding in 2021 [2][3]. - By the end of 2025, Meta's investment in Reality Labs is projected to approach $100 billion, with a focus on practical applications of AR, VR, and MR technologies [3][6]. - The revenue forecast for Meta shows a growth trajectory from $116.6 billion in 2022 to an estimated $164.5 billion in 2024, with adjusted free cash flow (FCF) margins expected to stabilize around 42% [9][10]. Group 2: Market Growth and Potential - The AR/VR/MR market is anticipated to reach a total value of $1 trillion by 2035, with applications across various sectors including gaming, healthcare, and social media [6][14]. - Meta's competitive position in the AR/VR/MR space is strong, with significant capital expenditures and a lack of successful competition from other major players like Apple and Google [6][12]. Group 3: Valuation and Future Projections - Conservative estimates suggest that Reality Labs could achieve a free cash flow margin of 25% with a market share of 20%, leading to a potential equity value of $541.09 per share based on discounted cash flow models [8][12]. - The optimistic scenario projects an equity value of $895.01 per share, indicating that Meta's current valuation does not fully reflect its potential in the AR/VR/MR market [13][14]. Group 4: Strategic Insights - Meta's integration of AI capabilities into its AR products is expected to enhance user experience and drive adoption, positioning the company favorably for future growth [3][4]. - The company is likely to see Reality Labs transition from a perceived burden to a valuable asset as it begins to deliver recognizable use cases and profitability [7][14].

星标 ★ IPO日报 精彩文章第一时间推送 全球光学元器件龙头、苹果华为核心供应商浙江水晶光电科技股份有限公司（ 002273.SZ， 下称"水晶光电"） ，近日抛出了一笔受争议的收购案 ——拟以自有及自筹资金3.235亿元收购广东埃科思科技有限公司（下称"广东埃科思"、"标的公司"）95.6%股权。 在这场增值率高达280%的关联交易背后，标的公司依旧处于持续亏损状态，这究竟是上市公司借助收购进一步完善产业布局，还是一场左手倒右手的"自 家人"交易？ 公司产品以外销为主，部分产品出口新加坡、越南、泰国、马来西亚、日本、欧美等海外市场，报告期内的外销占比约为 77.47%。 公司近年来营收快速增长。2021年至2023年及2024年前三季度，营业收入规模分别为38.09亿元、43.76亿元、50.76亿元和41.10亿元；同期，归母净利润分 别为4.42亿元、5.76亿元、6亿元和8.62亿元。 细分来看，公司业务主要涉及光学光电子行业、反光材料行业和其他业务，其中，光学光电子行业是公司主要的收入来源，2023年占公司营业收入比重为 92.49%。 光学产品最大的下游应用领域为智能手机、平板电脑等消费电子产品 ...

Investment Rating - The report does not explicitly provide an investment rating for the cybersecurity awareness education industry Core Insights - The cybersecurity awareness education has become a critical pillar for enterprises in the digital economy, with employee awareness directly impacting information security [2] - The survey conducted by the specific company aimed to understand the current status, needs, and expectations in the cybersecurity awareness education sector, providing data support for industry development [2] Summary by Sections Research Methodology and Sample Overview - The survey utilized targeted questionnaires for existing and potential users, covering various dimensions such as industry type, respondent position, satisfaction with education services, and future needs [3] - A total of 114 valid questionnaires were collected from existing users, with 36.84% from state-owned enterprises and 22.81% from the financial sector, indicating a representative sample [7] - For potential users, 370 valid questionnaires were collected, with 31.77% from state-owned enterprises and 20.31% from manufacturing [9] Existing User Survey Results - Overall satisfaction with the specific company's cybersecurity awareness education services was high, with 47.37% of users very satisfied and 45.61% satisfied [11] - Satisfaction with educational products showed that 50.88% praised the quality of educational videos, while 70.18% found the educational manuals clear and logical [13][16] - Users expressed a desire for more interactive activities and expert-led sessions during cybersecurity awareness weeks [23] Potential User Insights - 67.71% of potential users had not previously collaborated with the specific company, but 30.21% planned to initiate cooperation soon [29] - 66.67% of potential users recognized the importance of cybersecurity awareness education services for enterprise information security [35] Comparative Analysis - Both existing and potential users emphasized the need for case studies relevant to their business scenarios, with 80.7% of existing users and 83.33% of potential users highlighting this need [42] - There is a shared interest in a combination of online and offline educational formats, with 61.4% of existing users and 71.35% of potential users supporting this approach [43] Optimization Directions for Services - The specific company plans to enhance existing educational products by incorporating more real-world case studies and optimizing presentation methods [45] - Innovations in service delivery will include the use of VR and AR technologies to create immersive learning experiences [46]