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猜猜苹果iPhone的第三个摄像头在2019年会做什么？_我的网站

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    Photo: Screenshot from an online blogger's video
Following reports circulating online about the use of formaldehyde solution during bulk purchases and transportation of cabbages and county-level authorities in North China's Hebei Province confirming its illegal use, Chinese relevant authorities have promptly guided local authorities to conduct investigations, according to CCTV News on Sunday.
The office of the food safety commission of the State Council, the Ministry of Agriculture and Rural Affairs, and the State Administration for Market Regulation have instructed local authorities to conduct investigations, handling the incident strictly and expeditiously in accordance with the law, trace the distribution of the implicated cabbages, and prevent problematic products from entering the market.
In addition, local governments nationwide have also been urged to immediately carry out special sampling inspections and market checks on perishable vegetables such as cabbage. Any violations of laws and regulations discovered will be severely punished without leniency, the report noted.
County-level authorities in North China's Hebei Province have confirmed its illegal use to preserve freshness after a preliminary investigation, according to a statement on Saturday. Police have taken legal compulsory measures against the individuals involved and the vehicles concerned, and the case is under further investigation, according to a statement by local authorities on Saturday.
According to The Paper, a blogger posted a video on August 22 claiming that, in Kangbao county of Zhangjiakou, several batches of cabbages were randomly selected for inspection, and all were found to have been dipped in formaldehyde solution before being loaded onto trucks to preserve their freshness.
The statement by authorities in Kangbao county on the same day noted that authorities immediately organized relevant departments, including those responsible for agriculture and rural affairs, market regulation, and public security authorities, to conduct an on-site investigation.
A preliminary investigation has confirmed that the situation shown in the video is genuine. The incident involved the wholesaler illegally using formaldehyde solution during the loading and transportation of vegetables in an attempt to preserve their freshness. The public security authorities have taken legal compulsory measures against the individuals involved and the relevant vehicles. The case is currently under further investigation, per the statement.
At the same time, authorities are urgently tracing the distribution and destination of the affected cabbages. The county is also conducting a comprehensive inspection of vegetable purchasing, transportation, and sales activities to identify and address similar violations. 
"Any illegal or non-compliant practices discovered will be dealt with strictly in accordance with the law to ensure the safety of the vegetable supply," the statement read.
In an attempt to improve the appearance of the cabbages and reduce losses during transportation, the wholesalers took the risk of using formaldehyde to preserve them. The nature of the violation is extremely serious and utterly absurd, according to a commentary article published by People's Daily on Saturday.
China's Law on Food Safety and on Quality and Safety of Agricultural Products stipulate that the use of freshness-preserving agents, preservatives and other substances in the packaging, preservation, storage and transportation of agricultural products must comply with national food safety standards. Formaldehyde, classified as a Group 1 carcinogen, is strictly prohibited from being added or used.
"The wholesalers focused solely on their immediate economic interests while completely disregarding the lives and health of consumers have crossed a legal red line and breached the moral bottom line, while also damaging the good reputation of local agricultural products and causing innocent losses to local farmers who comply with regulations," People's Daily wrote.  
Global Times
。继华为和三星之后，有传言称苹果将在2019年推出至少一款三摄像头后向iPhone。该模型现在被认为是iPhone XS Max的继承者，甚至所谓的三摄像头渲染也浮出水面。从渲染图上可以看出，2019年的高端iPhone机型将有一个更大的摄像头模块，包括三个三角形排列的摄像头、一个LED闪光灯和一个麦克风。这种奇怪的设计在苹果的硬件中并不常见。问题是，iPhone上的第三台新相机能做什么？如果传言属实，iPhone上新推出的第三款相机将具有几个潜在的优势，包括先进的3D传感、增强的光学变焦、改进的低光性能和改进的照片质量，这通常得益于更多的光和颜色数据收集。先进的3D传感器苹果反复表示对增强现实技术的浓厚兴趣。Arkit的发布立即使数亿部iPhone和iPad能够使用增强现实技术，但苹果公司才刚刚在这一领域起步。第三款相机可以显著提高iPhone的三维空间识别能力。去年的一份报告显示，后传感器功能将比iPhoneX上的pre-truedepth系统更先进，并能在更多场景中增强现实应用。根据同一份报告，三个摄像头系统将能够实现立体成像，其中两个传感器将能够从不同角度捕捉单个物体的图像。然后将使用三角测量法来获取iPhone和对象之间的距离。早在2017年，彭博社就报道说，苹果计划在其iPhone上安装一个Post-3-D传感器，该传感器于2019年推出。但该报告称，当时苹果正在评估一种飞行时间法，这种方法可以计算激光从周围物体反射回来创建环境三维图像所需的时间。不管苹果采用什么方法，第三款相机无疑会提高iPhone的增强现实功能。这也为苹果AAR眼镜将于2020发布的谣言奠定了基础。增加第三台相机的光学变焦可能会使iPhone的光学变焦功能首次达到三倍。

二 | 用户可以在取景器中缩放图像三次，而不是像数码变焦那样降低图像质量。相比之下，iPhone7 Plus、8 Plus、X、XS和Max具有两倍的光学变焦功能。华为的P20 Pro是首款配备后置三摄像头系统的智能手机，包括800万像素长焦距摄像头、4000万像素主摄像头和2000万黑白子摄像头，可实现三倍光学变焦。iPhone上的第三个摄像头（如果是传统传感器）将吸收额外的光线，以提高设备在低光场景中的性能。毫无疑问，苹果在iPhone拍照算法上投入了大量资金。

三 | 例如，在最新的iPhone上，智能HDR模式允许照片具有更多的高光和阴影细节，而景深控制显著改善了肖像模式。Google的新夜视模式Pixel3和Pixel3XL设置了暗光照片的标准，但它通过机器学习根据图像内容选择正确的颜色。因此，在较暗的光线下拍摄的照片更亮，不需要照相机闪光灯。有了第三个摄像头和改进的机器学习功能，苹果可能能够在2019年发布的iPhone上实现与谷歌夜视模式相当的功能。

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Published on:21:54:46