Speaking of AR Technology, and VR Technology is really a popular visual technology at present, and it has gradually begun to be used in various entertainment fields. This public test project involved uses AR Technology to 3D Let's continue to explore the ways to reproduce various dinosaur images, including what they look like, how the entertainment effect is and how to achieve it.

Considering that some readers may not understand AR Technology, direct disclosure may really lead to a decline in interest, so the evaluation is divided into two parts. The first part is the use experience of small basin friends with unknown reasons (simulation version, my small basin friend is only one and a half years old, but her mother can play this role!), and the other part is the disclosure of large basin friends who understand the principle AR The truth.

First of all, of course, it is unpacking. The shipper has only four simple words - "Lei Feng for trial" - that is, is it a noun modified by Lei Feng, or a verb with Lei Feng as the subject

Open the outer package to see the outer package labeled "Lei Feng Trial".

Open the box, there are only instructions and cute orange CC Four pieces of image cards, a stack of dinosaur cards and a box of archeological simulation fossils doomed that there would not be too many pictures of real objects.

There are two dozen dinosaur cards, and the paper used is very thick, about five Thickness of dime There is no smell of printing ink.

The card is beautifully printed and detailed, and the details of dinosaur skin perform well. The back is printed with the name, English name, Chinese pinyin, age and habits of the dinosaur. A small contrast picture is attached to the side to let you actually understand how big the dinosaur is. Don't underestimate this picture. It is very useful, and will be mentioned later.

The instructions are very simple, both positive and negative, except for the prompt to download APP And a QR code with authorization code function.

  Because there are only a few things, this is the end of unpacking. Next, the big friends who didn't know the truth began to test.

First prepare according to the instructions APP ——Magic Dinosaur House, this APP yes 90+MB The capacity (1 from the left in the figure above), but it seems that the requirements for the machine are not too high, at least the Z5Mini of my daughter-in-law is OK. get into APP Later (the opening animation is also 3D), you will be asked to register with your mobile phone number. APP Authorized unlocking is to scan the QR code on the instruction manual, and each QR code can be unlocked seven One device, one family's mobile phone and pad are enough.

Take out any card and lay it flat, open the "magic camera" (cute...), aim the camera at the card, "bang" (please bring your own sound effect) - the dinosaur will stand up from the picture!! There are land and coconut trees in the picture (it seems that all dragons are coconut trees & ）And a standing dinosaur! When the camera revolves around the card, the view angle in the picture also revolves around the dinosaur, while moving up and down will change from looking down to looking up, and the distance between the phone and the card will also affect the size of the dinosaur in the phone picture - near big, far small.

Remove the card from the camera screen, and there is only one dinosaur left in the screen. The land and coconut trees have disappeared. According to the instructions, double finger zoom, double finger movement, single finger rotation, adjust the appropriate position and size, and you can take a group photo with the dinosaur!! Here we will use the previously mentioned contrast map with human size - you can accurately adjust the size and position of dinosaurs through the contrast map to make the photos look more realistic. Unfortunately, the fog is too heavy outside, so I'm afraid the dinosaurs will get lost when they go out for a group photo (mistake), so let's play with the bear.

In the words of my little friend's mother... "OK ~ It's amazing... "   -_-!!

OK , as before Now let's discuss how to realize AR Dinosaur Magic Hall. For readers who want to keep the mystery of the dinosaur magic hall, please skip this paragraph.

First, let's introduce AR, namely Augmented Reality - reality enhancement. In short, it is a technology that overlays and interacts virtual images with the real world by calculating the camera position in real time. AR technology was proposed in 1990, but it has been widely implemented in recent years. I think the main reason is that real-time graphics computing requires strong processing power, while in recent years, the processing power of mobile devices has become increasingly strong.

There are also many ways to implement AR, and the Dinosaur Magic House is the most basic one. The image in the card is equivalent to turning on the AR switch. When the APP captures the image in the card, it will generate dinosaurs and scenes on the mobile phone screen, and calculate the posture and distance of dinosaurs on the screen by calculating the position and size of the image in the card in the camera. It's simple to say, but it's not so easy to implement. For example, how to realize the on-off function of such a dinosaur image without any marks? And there is no need for a complete picture, just part of the camera will generate a 3D picture and will not identify errors (I also think it is amazing...). In addition, after scanning the card, dinosaurs will still appear after the picture is taken (if you have AR Dinosaur Magic House APP, you can take out your phone now and try it on the screen). The picture below clearly shows that the size of the image scanned by the camera determines the distance from the dinosaur.

As for the photo taken with dinosaurs, it is simplified as a layer, used PS Or children's shoes who like texture mapping after taking a selfie may know that the principle is to use the computer to calculate in real time 3D The video and the real-time picture taken by the camera are displayed in two layers, and then summarized on the mobile phone screen for output. The user looks like they are in the same picture.

  in addition The dinosaur magic hall also included a set of small toys called "dinosaur archeology". They are small in size and very sophisticated in tools. I often work hard to do miracles... I have not dared to start yet, but it should not be a challenge for children.

summary

Whether children or adults, AR The entertainment experience brought by the dinosaur magic hall is novel. On the one hand, it can intuitively understand dinosaurs and their habits and survival years; on the other hand, it can simply experience reality to enhance this entertainment technology - which may really be a topic for children.

The advantages of the product are fine workmanship, exquisite printing and good texture. 3D Strong texture, realistic reproduction, very detailed skin texture mapping (the picture below is magnified to 100%, guess 90MB Most of the packages in 3D Skeleton bar). The popular science knowledge is accurate, and it is very considerate to add the comparison with people's height. At the same time, the card is not the only basis. The scanned card can still be scanned, so saving is not a problem.

The disadvantage is that the playing method is a little simple and can only take photos. On this point, I think it may be possible to join in the future development VR Experience part, virtual 3D Scene, matching VR Glasses still rely on card images to identify. Cards are hung everywhere in the room, and you can see which dinosaur you turn to, bringing immersive experience.

Hehe, zoom in and rotate the dinosaur, and then the tail of the dinosaur is empty - so we are looking at the canvas......>_<