2022上海后花园论坛

Special feature of 1905 film network Officially unveiled! On December 14th, (hereinafter referred to as) took the lead in opening the screening before the domestic release to meet the first audience.

According to the data of Lighthouse Professional Edition, up to now, the box office of the first day of the film has broken 22 million, accounting for nearly 80% of the box office, and the total box office of point screening and pre-sale has broken 170 million.

Avatar 2 is only released in 3D in China, and there is no 2D version. The audience’s great expectations for Avatar 2 are also in 3D visual effects. Good 3D content needs good projection technical support, and high-quality 3D glasses are also indispensable. A pair of good 3D glasses can bring a clearer and more stereoscopic impression.

"Avatar 2" has hit in an all-round way. Are there any 3D glasses in domestic cinemas? 1905 Film Network consulted a number of cinemas and learned that there are different situations. Some are stepping up the replenishment of stocks, and some are well stocked, so they are temporarily on hold.

For example, Tony chen, the head of Jiangxi Yuemu Studios, told us that all its chain studios are urgently buying 3D glasses. "Each studio has about 1,000 seats, so there will be 2,000 pairs of glasses."

"Ordinary studios generally don’t stock too many 3D glasses. The main reason is that the number of 3D movies in China is still relatively small, and it can’t be too much in a year." Xie Xingxin, manager of Chongqing Baisha International Studios, explained. In general, the ratio of the number of 3D glasses to the number of seats in a cinema is 1:1.5-1:2, that is, 150 to 200 pairs of 3D glasses for 100 seats. These glasses have a long service life under good maintenance. Except for cinemas that don’t provide free glasses and sell 3D glasses, they usually prepare a certain amount of goods.

So, for the enterprises specializing in the production and supply of 3D glasses, what business changes have they experienced in the 13 years since Avatar 2? Can the arrival of Avatar 2 drive a new wave of demand for 3D glasses products and improve the technical quality?

In this regard, 1905 Film Network visited three domestic enterprises that produce and supply 3D glasses. Because of the arrival of Avatar 2, they unanimously said — — Orders for 3D glasses have exploded recently.

01

"Orders and production lines are all full. At present, there are millions of orders received, all of which are trying to stock up for customers. According to this demand ratio, this month’s output may exceed 10 million pairs. "

Liu Bingbing, general manager of Shenzhen Future Stereo Technology Co., Ltd. told us that the average annual output of the company’s brand "Geduowei" 3D glasses is 30-40 million pairs. Because of Avatar 2, at least a quarter of the annual output is concentrated this month.

Established in 2009, Future Stereo is one of the earliest enterprises in China to manufacture 3D glasses, and now there are 2,000-3,000 cinemas in cooperation with all parts of the country. Liu Bingbing said that since Avatar 2 was finalized overseas in early November, they predicted that it would land in China mainland cinemas and increase the production of 3D glasses ahead of schedule.

Time Huaying is also an early enterprise in China to develop, produce and sell cinema 3D systems and 3D glasses. It has more than 20 million pairs of medium and large-sized 3D glasses production bases with annual production capacity, and its 3D brand "Feidio" mainly cooperates with China Film and Wanda.

Time Huaying introduced that they had already made full preparations for the release of Avatar 2. After the file was finalized, major studios and cinemas quickly placed orders, and the order volume of 3D glasses reached millions, which was more than 10 times higher than the average monthly shipment.

3D glasses manufacturer Hengchuang Bora is also accelerating production, "obvious changes. Because of "Avatar 2", the demand for 3D glasses in cooperative studios has increased a lot. In recent years, there has been no business and a lot fewer workers. Now I am busy and the production is really tight. " Huang Shuisong, a staff member of Hengchuang Bora, said.

According to the annual shipment trend chart of 3D glasses provided by Time Huaying, the company’s shipment of 3D glasses reached its peak in 2017, and then gradually declined, reaching its lowest point in 2020 due to the epidemic. In the past two years, shipments have shown a slow growth trend.

Times Huaying 3D glasses annual shipment trend chart

Time Huaying explained that around 2017, most studios chose to sell 3D glasses, which led to the sales of 3D glasses. Since then, due to a large number of "pseudo-3D" movies, 3D movies specially provided by China, and the uneven screening equipment, a series of problems at the content end and the restoration end have greatly reduced the effect of 3D movies, and watching 3D movies is dark and dizzy, causing many viewers to start to resist and resist 3D movies.

From the data point of view, according to the statistics of the Motion Picture Association of America, the global box office revenue of 3D movies decreased from 21% in 2017 to 6% in 2020, and rose to 7% in 2021. According to the statistics of 1905 Movie Network, the number of domestic (including co-production) live-action 3D movies has gradually increased from one in 2011 to 26 in 2016, and then it has also decreased year by year. By 2021, only two domestic 3D live-action movies will be released.

It can be seen that the popularity of 3D movies has indeed declined since 2017, and the demand for 3D glasses has also decreased with the coldness of the 3D movie market.

Liu Bingbing’s feelings about this are particularly obvious. "Especially in the past three years, many 3D suppliers have closed down. Because our company’s future technology has always adhered to overseas markets, there are still relatively many 3D movies released from India to the United States, so the shrinkage in the whole industry is not too serious. "

Similarly, Hengchuang Bora has also focused on the foreign trade market in recent years. Huang Shuisong revealed that the average annual sales of 3D glasses produced by the company now reach 50 million pairs, which are mainly sold to overseas markets. The average annual sales in China are about 6 million pairs, accounting for less than 15%. Now, because of Avatar 2, the supply of 3D glasses has been promoted instantly.

In addition to ordinary 3D, Avatar 2 also released CINITY, IMAX3D, DolbyCinema, China Giant Screen and other versions. Different special effects halls have 3D glasses with different standards, which cannot be used universally.

Take IMAX as an example. When Avatar was released in 2010, there were only 14 IMAX theaters in China, and the tickets of major IMAX theaters were sold out quickly. In 2021, Avatar was re-released in 716 IMAX studios nationwide, setting a record for the first weekend of IMAX re-released films in China. Avatar not only directly promoted the full blossom of IMAX cinemas in China, but also upgraded the laser IMAX from the first generation to the third generation. It is worth noting that the 3D glasses of the three generations of laser IMAX cinemas are not different and cannot be used with each other.

If the cinema does not provide 3D glasses for free, the audience needs to buy them according to the specifications of the cinema, and different brands have different quality and price. Under the influence of the epidemic, for the sake of safety and hygiene, the demand for 3D glasses purchased by the audience will increase, which will undoubtedly usher in a wave of benefits for 3D glasses sellers.

02

Although domestic cinemas sell 3D glasses, most of them are mainly provided free of charge. Nowadays, the profits of selling 3D glasses in cinemas are relatively low.

Zener International Studios currently has 26 chain studios in China. Li Bin, assistant general manager, said that before 2016, the sales of 3D glasses in studios were good. Later, the competition among studios was fierce, and the 3D fever ebbed, so it was basically provided to the audience free of charge.

At present, there are 40,000 pairs of 3D glasses in the studio, and the purchase price a few years ago was close to 5 yuan. "This time, let’s take the opportunity of Avatar 2 to clean up the inventory. The prices of different 3D glasses range from 10-30 yuan, and basically do a 50% discount package tying."

3D glasses are also products with small profits but quick turnover, mainly relying on low profits, low prices and expanding sales to increase revenue.

From Ma Yuwu, the head of Beijing Xiwang International Studios, who provided us with a price list of 3D glasses promoted by a merchant, we can see that the general cost of 3D glasses is low — —

"Ordinary model /0.2mm/0.88 yuan, children model /0.2mm/0.90 yuan, hanging clip model /0.2mm/0.70 yuan, clip model /0.7mm/3.5 yuan (unit price of more than 1000 sets); There is also a batch of 3D glasses (giant screen model /0.28, Skyworth model /0.4 double antibody, bicolor model /0.28). "

The production threshold of 3D glasses is low, and many 3D glasses made by small enterprises and family workshops on the market do not meet the certification standards. There are not many domestic enterprises with big brands and a certain production scale. After a large number of unqualified 3D glasses manufacturers join the production team, they will have a great impact on the big manufacturers in terms of quality and price.

"When the first Avatar was released, a pair of 3D glasses could be sold at an ex-factory price of 200 yuan in 300 yuan and 700 yuan in 800 yuan. Nowadays, the ex-factory price of 3D glasses is more than one piece at most. In recent years, the volume has been serious, which has led to malicious price competition, so it basically does not make money. Even if Avatar 2 comes, our price is the lowest, and it is great that a pair of 3D glasses can earn five cents at most. We also want to make more orders overseas. "

Liu Bingbing said that if the sci-fi blockbuster released in the Spring Festival in 2023 can also be released in 3D, it will greatly stimulate the sales of 3D products together with Avatar 2. He hopes that Avatar 2 can stimulate the high-quality enjoyment of domestic 3D viewing and indirectly promote the quality and effect of 3D movies in China. Because only good 3D movies can have good 3D glasses.

Even if 3D glasses can be supplied to amusement parks, theme parks, science and technology museums, aquariums, 3D TVs, home private cinemas and other places of entertainment, cinemas are still the main core supply target.

Time Huaying is also optimistic about the future prospects of the 3D glasses industry. "With the market growth, the glasses factory gradually turned to automatic production, increased production capacity, and the price of glasses gradually rationalized. The audience’s requirements for the quality of 3D glasses increased, and more people chose high-quality 3D glasses with high contrast and high transmittance."

The ultimate 3D effect created by Avatar 2 and the audience’s high pursuit of 3D viewing experience will force the cinema 3D projection technology and the quality of 3D glasses to be upgraded. When excellent 3D content is blessed by high-quality projection equipment and viewing equipment, viewers who love watching 3D movies will definitely return to the cinema.

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　　　　CCTV.com News (Evening News): The State Administration of Radio, Film and Television released the Announcement on Spot Check of Internet Audio-visual Program Services today, and well-known video websites such as "Cat’s Video" and "Tudou.com" were punished for their violations.

　　　　The results of spot checks show that the Internet audio-visual programs provided by some websites contain obscenity, terror and violence, and endanger national security and interests. Some websites engage in Internet audio-visual program services without obtaining the License for Information Network Dissemination of Audio-visual Programs, some of which are not qualified for Internet information services, and some websites often disseminate audio-visual programs that do not meet the requirements of the state.

　　　　In response to the above problems, local radio and television departments have ordered 25 websites that engage in Internet audio-visual program services without authorization, such as cat-flapping videos and super BT downloads, and whose broadcast content is seriously illegal, to stop the unauthorized Internet audio-visual program services. 32 websites, such as Tudou.com, China BT Download Network and Xunlei Commune, which repeatedly spread illegal audio-visual programs, but the violations were minor, were given warning and punishment.

Editor: Peng Wei

Insisting on exercise is good for physical and mental health. Many friends, because of hard exercise, have healthy bodies. There are still some friends who are unable to act for various reasons. After all, exercise is really: too tired!

What are the benefits of insisting on exercise? Today, we will give you a wave of chicken blood.

01

"I have been running for 5 years, from more than 160 kilograms to 120 kilograms. My high blood pressure, moderate fatty liver and overweight have long since disappeared."

analysis

Exercise is one of the most active and effective methods to prevent obesity, which can not only help control weight and improve physiological function, but also prevent weight rebound and reduce the occurrence of chronic diseases related to obesity.

In addition, adhering to regular exercise can also improve heart function and vascular elasticity, lower blood pressure, reduce inflammatory factors, regulate blood lipids, reduce cardiovascular risk factors, effectively prevent cardiovascular diseases and promote the rehabilitation of cardiovascular patients.

02

"The biggest feeling that insisting on exercise gives me is that I feel energetic every day and my life and work become very relaxed."

analysis

Regular exercise is good for brain health, which can not only cause good emotional and state reactions, but also reduce the release of inhibitory neurotransmitters and delay central fatigue, thus making life more enjoyable and work easier.

03

"After running for three months, the body fat dropped from 30% to 17%. Now you can clearly see the abdominal muscles, and people are much lighter. I will continue to refuel and strive to make myself stronger and healthier. "

analysis

Aerobic exercise belongs to the exercise in which the amount of oxygen consumed and the amount of oxygen absorbed are equal. Long-term and moderate-intensity exercise can increase body fat consumption and is an ideal way to reduce fat.

Three simple steps to master moderate-intensity aerobic exercise easily:

1. Calculate the maximum heart rate: maximum heart rate =205.8- age x0.685.

2. Calculate the moderate intensity exercise heart rate: moderate intensity exercise heart rate =64%~76%* maximum heart rate.

3. Bring heart rate monitoring equipment to control the exercise heart rate in a moderate intensity range.

04

"After exercising, I have a good sleep and can go into deep sleep."

analysis

Exercise can make the brain secrete endorphins, improve the individual’s pleasant experience, release the inner anxiety and pressure, and thus improve sleep. Moderate exercise fatigue can also shorten sleep time, deepen sleep depth and improve sleep quality.

Exercise is helpful to sleep, but strenuous exercise should be avoided 3 to 4 hours before going to bed, otherwise it is likely to have the opposite effect.

These are just the tip of the iceberg. Can you still sit still after reading it?

(Popular Science China)

Nowadays, artificial intelligence gradually integrates with human senses such as sound and vision, making communication between people more convenient. However, it is still challenging to integrate artificial intelligence with human touch.

To solve this problem, Meta AI and Carnegie Mellon University successfully developed a multifunctional, replaceable and durable tactile skin, and named it ReSkin. It can quickly improve the tactile sensing accuracy and sensitivity of the machine in the application process.

(Source:Proceedings of Machine Learning Research )

Related papers are titled "Multifunctional, Replaceable and Lasting Touch Skin" (ReSkin：versatile，replaceable，lasting tactile skins) published in [1].

Matai visiting researcher Raunaq Buhanlan (Raunaq Bhirangi), Tess Hellebrex, postdoctoral fellow and scientist of Pittsburgh Yuan Artificial Intelligence Research Center (Tess Hellebrekers), Mel Majdi, Professor of Robotics Institute of Carnegie Mellon University (Carmel Majidi), Abbina Gupta, Associate Professor of Robotics Institute of Carnegie Mellon University (Abhinav Gupta) is the author of the paper.

It is mentioned in the paper that ReSkin relies on machine learning technology and magnetic sensing technology, and has the advantages of being cheap, multifunctional, durable and replaceable. Specifically, ReSkin has low production cost, only 2-3mm thick, and can interact with the machine model more than 50,000 times. In addition, it has a high spatial-temporal resolution with an accuracy of 90%.Figure | ReSkin is the size of a coin and easy to manufacture (Source:PMLR)

Thin and high-precision specifications make it suitable for all kinds of machines, such as robot hands, tactile gloves, arm sleeves, etc. For specific processes, ReSkin can also provide tactile signals (high frequency) for the sliding, throwing, catching and clapping operations of the machine.

When Reskin is applied to different products, a large amount of relevant data will be generated, which can help researchers improve their tactile perception ability in AI systems.

Figure | Frequency changes of sensors applying ReSkin under different magnetic fields (Source:Proceedings of Machine Learning Research)

For example, ReSkin is an elastic sheet that can change its shape and contains magnetic particles. When its shape changes, it will release different magnetic signals. Researchers can use magnetometer to measure these changes, and use data-driven technology to convert the measured data into information such as contact position and applied force.

At present, many tactile sensing experiments are limited to one sensor level. This is because every time ReSkin is replaced, the machine needs to build a new model, which reduces the transmission efficiency.

Moreover, in different scenarios, each sensor needs to be thoroughly calibrated with the initial calibration procedure to match its individual response. This means that the calibration procedure must also adapt to these changes. In addition, as time goes by, soft skin like ReSkin will deform and need to be replaced, so it is difficult to popularize and apply it to different interactive scenarios.

In order to simplify the replacement process of Reskin, the researchers made innovations in three aspects.

Firstly, the researcher separates the internal circuit of the sensor from the passive interface, and does not need to be electrically connected with the traditional measuring electronic equipment. This operation effectively improves the sensitivity of the sensor, and it is as simple as sticking a sticker when replacing worn ReSkin.

Secondly, the researchers use the output data of several sensors to improve the model mapping. Through this operation, researchers can use a higher data diversity training model. This helps the sensor to output more effective and generalized data.

Thirdly, thanks to the self-supervised learning mode of the machine, researchers don’t have to collect calibration data for each new sensor, but use a small amount of unlabeled data to automatically fine-tune the sensor.

It is known that the existing camera-based tactile sensor requires a very small contact distance between the surface and the camera, which leads to a heavier machine. In contrast, ReSkin can cover the hands and arms of humans and robots, which facilitates researchers to develop multifunctional, expandable and inexpensive tactile modules. This is impossible for the existing artificial intelligence tactile system.

In order to highlight the practical value of ReSkin and show its unique charm of promoting the development of artificial intelligence, researchers apply it to different machine scenes. From grasping tiny objects to measuring the force exerted by the dog’s feet, from building a continuous ReSkin with wide coverage to measuring the field contact force, ReSkin has shown its extremely high flexibility and practicality.

Although researchers have demonstrated the technical advantages of ReSkin in contact location and force prediction, ReSkin still has great development potential in the future.

The experiment of this paper is based on the single-point contact of the machine, and the goal of scientists is to further study the application of ReSkin under multi-point contact. Another interesting future development direction is to specifically analyze the influence of external magnetic field and metal objects on ReSkin’s perception ability.

In addition, based on ReSkin’s high time resolution of 400Hz, researchers can make use of this advantage and use dynamic time series data to create better machine models. In a word, scientists believe that ReSkin will promote the machine’s touch perception ability and be able to apply it to practice.

References:

1.https://arxiv.org/abs/2111.00071

2.https://ai.facebook.com/blog/reskin-a-versatile-replaceable-low-cost-skin-for-ai-research-on-tactile-perception/

Zhongguancun Online Message: Lenovo Interpise Hu Xiaomi’s starting flagship chip is the second time.The first time is two years ago, Snapdragon 855, the responsible person of the Lenovo mobile phone business at that time was still the manner we are familiar with the shopkeeper.

After a year, Lenovo once again grab the first hair of the Snapdragon High-end flagship chip and did the world’s first.Where is Xiaomi?The first Qualcomm flagship chip has suddenly collapsed for many years?

In addition to the high-end flagship chip, the second flagship dragon 870 is also losing from Xiaomikou.This makes us have to doubt, is Xiaomi can’t work?The first shot becomes the first batch. It may be better twice. If it is a regular loss, there is really a problem.