The last time, our "Focus" magazine did a DJI "Diao" SPARK use evaluation sharing, but also with everyone to predict the next issue we will be exclusive to reveal the secret behind SPARK, let you understand from the design surface of this global summer hottest Digital single product, this content is the July 2017 issue of "Focus" magazine, the exclusive exclusive interview of DJI Dajiang SPARK designers.
Focus on aerial Raiders II: This summer's hottest drone worth buying? Dajiang “Xiao†Spark’s use of the “Dawn†Spark drone has allowed us to see the image of the future: whether it is to record trivial matters, family life, or the creation of a distant journey or long-distance travel, the integrated image of the world. Entering everybody’s daily life is at your fingertips; just as it is now easier to get out of your cell phone, everyone can record their own unforgettable moments from a different perspective in an easy way. Do not know whether readers who love TED can also remember Focus Magazine | Like 28 Comments 30 Favorites71View Details 
Two years ago, when the Dajiang Wizard Phantom 3 series was born, the propaganda film said: “Although we have seen many angles from this world, there are always more angles waiting for us to discover.†Drones also accompany them. Photography enthusiasts chase the mountains and the Great Lakes and go one after another. It helps us “look outward†and capture the magic of nature in those difficult-to-reach environments. However, looking opposite, it is a kind of look back. The people of the digital age seem to be more familiar with this kind of scenery: back to the beauty, 45-degree angles look to the void, and the expression is rich and splendid. Wherever and whenever, “I†is the most important existence. Recording the life of “I†has become an unavoidable need for modern people, or is our life itself.
“To make drones closer to life.†Based on this concept, the DJI R&D team began with the simplest concept, and it took more than a year for Demo to mass production. At the end of May this year, this small intelligent aerial camera with a unique interactive experience was launched, Dajiang Spark.
In Spark's demo video, a girl wearing a bachelor's uniform tossed her hat into the air. Next to her parents who witnessed the graduation ceremony, the camera gradually pulled away, showing a curved teaching building, and then a sea. This large, powerful screen comes from Spark's "One Click Movie" feature.
This feature is very practical for most users, meaning that there is no need to spend time on learning how to use drones. In this closed loop, Spark can quickly shoot you a high quality centered on you. 10s aerial video. After the function was released, some media had done a street experiment to find a person who had never touched a drone and taught him to use it within 10 minutes. Finally concluded that this is a drone that will be used by old grandmother.
In fact, since the release of the Elves series, it can be seen that "get to fly" is a development idea of ​​DJI for a long time, and it is also a product positioning of many consumer-class aerial cameras. However, this time the attempt went further and broke through in the direction of “going and filming.†This simplified the process of defining the subject, shooting, coloring, editing, and sharing, and simplified it to “a key to produce a filmâ€.
The R&D team revealed that they first studied videos of a large number of users taking self-portraits using an aircraft, including the Japanese couple who traveled around the world for 400 days. After analyzing the motivation of these materials and sharing behavior, they came up with close-ups, visions, and music. Elements. To meet these three points, DJI's engineers have upgraded the smart follower's technical solution. The aircraft will automatically execute a specific flight trajectory and record a video based on the locked target. At present, there are four models, namely, the sky, the far, the surround, and the spiral, and more models are being verified.
One problem that is difficult to achieve in the implementation process is to confirm the surrounding target. "Need to know the specific coordinates of the target in order to surround, and the target obtained by the image algorithm is a coordinate in the 2D plane, how to calculate the position coordinate of the target in the 3D world through the 2D plane coordinate is also a troublesome thing."
In the composition of the screen, professional films such as “Speed ​​and Passion†and “Lord of the Rings†are also reference objects for R&D designers. In these four kinds of flight trajectories, not only people are in the center of the picture, but this function also takes into account the relationship between the horizon and the composition of the characters, so that when the lens is far away, there can be 1/3 golden section horizon. In the spiral mode, in order to achieve a beautiful shooting curve, reference is also made to the Fibonacci sequence.
Want to get a best 10s video, in the APP, the middle part of the video frame compression, so that the film can achieve the best transition from close-up to long-term perspective, including 10s video composed of three 3s, highlighting the target body and large In the environment, the middle part will advance fast. In addition, several cutting-edge composers at home and abroad were invited to create a large number of 10s original music for this function. The one-button video function combines the mining, understanding, and technology accumulation of user needs, so that the action that originally required a complicated operation can be completed and there is no threshold.
Another Spark user, usually using Inspire for professional video production, already has good drone operation capabilities. Buying Spark sees its “smallâ€.
The reporter of Shenzhen Satellite TV, Joe Zhou, scheduled a white Spark on the night of the conference. He said he wanted to take a trip abroad. In fact, Dr. Han Di, a professor of electronic engineering at Tsinghua University, also said that he had already received this product and plans to bring it to a practical project in Ethiopia by the end of the month.
Spark is truly a "handheld" and weighs only 300g. However, the “small but complete system of sparrowsâ€, mechanically stabilizing the pan tilt, high-precision lenses, two cameras, 3D sensing system, infrared height measurement module, GPS/GLONASS dual-mode satellite positioning system, high-precision inertial measurement unit, and 24 Nuclear high performance computing unit.
“This is the limit that any existing slap volume aerial camera can reach.†The R&D team has made great efforts to balance the functionality and volume.
Small, flexible, stable, what to keep, what to discard, each decision has undergone repeated testing. “Although it is small, it is only combined with the visual hovering and obstacle avoidance function, and it has the autonomous flight capability based on the GPS flight control system. Only in this way can we have the electronic fence technology to enjoy the fun of flying and aerial photography in the legal flight area. Basic security and stability." But this is the basic standard that most minicomputer products in the existing market do not stick to. At the beginning of designing the product, the Spark R&D team firmly believed that this was a must.
For the problem that Spark does not have a three-axis platform, the R&D team explained: “The three axes are not considered as the limitation of the mechanical structure. The space in front of the Spark is limited and cannot be accommodated by too complex mechanical mechanisms. Due to the physical characteristics of the four-axis aircraft It is difficult to control the Yaw axis of the aircraft, and it is not as quick and sensitive as the Pitch and Roll controls. Therefore, it is possible to control the Yaw axis angle well, which also shows that our flight control capability is solid.â€
The process of product development, from 0 to 1, and the process of opening the brain hole are not difficult, and the key to the problem lies in how to make the right choice between the infinite number of possibilities in a limited time and find the most appropriate answer in front of technology and art. Reconstruct a minimalist project in an intricate technical architecture, and promote an easy-to-use user experience.
Surprisingly, one of the most widely spread features of Spark is gesture control. At Spark's global conference, the speaker gestured to control the sparks that were several tens of centimeters away. The drones moved in the direction of the gestures, much like in Chinese martial arts.
Take out Spark from the pocket, you can start the face scan and take off from the palm in 10 seconds, use gestures to control the movement of the aircraft, automatically follow and complete the camera and a series of actions and return to the palm. Because the gesture control does not depend on any control device, the media call it "the revolution of remote control devices."
The powerful sensor is the support of this function. In simple terms, in addition to the camera used mainly for aerial photography, Spark's forehead also has a small depth camera (TOF), which continuously collects visual information of gestures in three-dimensional space. The collected gesture images are transmitted to the aircraft CPU for calculation and analysis, and the specific instructions are sent to the aircraft after completion. In the existing gesture recognition algorithm can not meet the requirements of the sensor, the engineers in order to ensure that the aircraft can quickly and accurately respond to the user's gestures at close range, from the lowest level to rewrite all modules, the algorithm has done a lot of optimization, let Spark really becomes an extension of the arm.
The R&D team stated that, starting from the user's scenario, they believe that interaction must first be a human instinct, a natural way of manipulation. The user no longer needs to understand any of the obscure concepts of “Remote Control Channel,†“Rod,†“Flight Gesture,†and “Rotation and Throttle Throttle.†Gestures are the most primitive form of communication between people, and through sensors, users can communicate directly with Spark in human-machine interaction. Making a gesture, Spark nodded and responded, coming and going, forming a tacit understanding with each other.
The collision between teams continued until the product was released. "Spark is not a toy, but a living intelligent creature with perception and understanding."
END
The above exclusive content comes from "Focus" magazine's July 2017 issue. Exclusively what it's worth to buy, it refuses to reproduce in any form without permission. The above content is from the upcoming issue of the "Focus" magazine in July 2017. Interested friends are welcome to pay attention to us.
The author of this article @ Wechat Magazine's WeChat public number - Focus Magazine, WeChat search "jiaodianzz".
What is worth buying netizens:
How are you! We are the "Focus" magazine. Focus magazine is a magazine that promotes the distribution of aerial photography vision and travel life culture. Because it is a favorite platform for what it is worth to buy, so from today we have settled in what is worth buying and hopes to be in aerial photography. The visual and tourism life culture provides more information for everyone.
If you like our content or have any questions you want to learn, please pay attention to our "Focus" magazine.
The ultra-thin precision cutting of the Anti-Peep Screen Protector means that you can enjoy a perfect touch screen experience without allowing anything on the screen to be peeped. Whether you place your phone horizontally or vertically, Privacy Screen Protector can protect your personal Information and sensitive information are protected from harm by strangers. People around you cannot see the contents of your phone, so your details are safe.
The use of soft TPU material can really cover the entire screen.
With self-healing function, it can automatically repair bubbles and scratches within 24 hours.
The 0.14mm Ultra-Thin Protective Film can maintain the sensitivity of the touch screen to accurately respond to your touch.
The oleophobic and waterproof coating prevents fingerprints, oil stains and other substances from adhering to it and keeps the screen clean.
If you want to know more about Privacy Screen Protector products, please click Product Details to view the parameters, models, pictures, prices and other information about Privacy Screen Protector products.
Whether you are a group or an individual, we will try our best to provide you with accurate and comprehensive information about Privacy Screen Protector!
Anti-Spy Hydrogel Screen Protector, Privacy Protection Film, Protection Film, Privacy Film, Privacy Screen Protective Film, Soft Film
Shenzhen Jianjiantong Technology Co., Ltd. , https://www.jonsun-sz.com