What professional 3D cameras are there?

What is an IMAX3D camera? What's special about it?

IMAX3D camera is one of the highest resolution cameras in the world today. It can record the imaging of the left eye and the right eye simultaneously on two 65mm wide films. IMAX3D camera can shoot IMAX images with wide lens and high resolution. An important factor behind the miracle of IMAX3D is the adoption of double membrane technology, which is far more advanced than the traditional "red and blue" analog 3D technology-the latter only puts the images of the left and right eyes on a piece of film, which greatly reduces the clarity and color. IMAX3D technology has no such regret at all. It not only adopts the world's largest film format (15/70), but also captures and displays images simultaneously through two independent films. Target camera, free camera. According to the information of the query question bank network, we can know that the camera types provided by 3dmax include target camera and free camera. 3dmax generally refers to 3dsmax. 3DStudioMax, commonly referred to as 3dMax or 3dsMAX, is a 3D modeling, rendering and production software based on PC system developed by Discreet Company (later merged by Autodesk Company).

How to shoot the 3D World Cup?

Communication: The World Cup was mainly realized in cinemas.

To watch 3D games, you must first have a professional broadcaster, and then you must have a special 3D TV. However, in view of the fact that even in economically developed Europe, America, Japan and other regions, 3D TV is still not popular enough, and it is necessary to wear special glasses to watch it, and it is also required that the set-top boxes of local TV stations can apply 3D signals. At present, this kind of TV set is mainly produced in Japan, and the price is more than 2,500 pounds, which is relatively expensive. Most TV viewers will not be lucky enough to enjoy this visual feast at home. Therefore, the 25 3D live events of this World Cup will be mainly realized in cinemas, although 3D TV sets may become the leading role in the consumer electronics market in the future.

In some parts of Europe, the ticket price for watching the World Cup live broadcast in 3D cinemas can reach tens to hundreds of euros per game.

Airspace: 3D live video and ordinary live broadcast * * *

In the ordinary live TV broadcast of football matches, there are usually more than 10 camera seats distributed in various positions of the stadium. In the most standardized and advanced Bundesliga stadium, the number of seats for live broadcast will reach 17, and the number of seats set in this World Cup will reach about 30. 3D live broadcast does not change the original ordinary live broadcast or high-definition live broadcast technology, but puts two 3D cameras on a live broadcast seat to shoot at the same time. These two cameras should simulate different perspectives of people's left and right eyes to take two pictures. In the process of shooting, the lens can realize full zoom operation and automatically correct various errors. There is no need to set up 30 seats for 3D live broadcast of the whole stadium. Take this World Cup in South Africa as an example, 7 sets 14 cameras will be used for shooting.

In terms of signal transmission, the 3D live broadcast of the World Cup in South Africa, like ordinary live broadcast, is mainly transmitted by satellite. At this time, the transmission of 3D dual-computer signals is facing an embarrassing situation, that is, with the existing technical means, only the same image bandwidth as ordinary satellite transmission can be used, and other technical conditions are the same. This inevitably leads to the deviation of image quality. When the 3D transmitted image is displayed in full screen, the particles are obviously rough and the picture is not ideal. In layman's terms, it can be summarized as: 3D live broadcast sacrifices the clarity of the picture and the three-dimensional sense of vision.

Hardware: professional 3D camera realizes live broadcast.

During this World Cup, FIFA will cooperate with Sony for 3D broadcasting. According to FIFA's plan, Sony's professional 3D cameras will be used to shoot and broadcast 25 matches in five World Cup venues, namely Soccer City, Ellis Park, Durban, Cape Town and port elizabeth. The professional 3D camera used in the competition is Sony's multi-frame portable camera HDC- 1500. Sony will invest 7 sets of 14 cameras to complete 3D shooting. In terms of content editing and production, Sony's multi-image processor MPE-200 will be used to process the pictures taken by two cameras at high speed and effectively compensate the image differences, so as to achieve high-quality 3D image shooting and efficient 3D content production. Sony's 3D ob van will also enter the World Cup for the first time.

Principle: Two polarizers watch 3D images.

Simply put, 3D technology is virtual 3D technology, and it is a technology that uses computer operation to achieve three-dimensional visual and auditory effects. From the perspective of iconology, three-dimensional is no longer a plane, but a three-dimensional

There are many forms of making 3D movies, among which polarized glasses method is widely used. It uses human eyes to observe the scenery, uses two parallel movie cameras to represent people's left and right eyes respectively, and shoots two movie pictures with tiny horizontal parallax at the same time. During screening, two films are respectively loaded into the left and right film projectors, and two polarizers with polarization axes of 90 degrees are respectively installed in front of the projection lens. The two projectors need to run synchronously and project the picture onto the metal screen at the same time to form a double image of the left image and the right image. When the audience wears special polarized glasses, because the polarization axes of the left and right polarizers are perpendicular to each other and consistent with the polarization axis in front of the projection lens, the audience's left eye can only see the left image and the right eye can only see the right image. The left and right images are superimposed on the retina through the binocular convergence function, and the brain nerve produces stereoscopic vision effect, presenting a continuous stereoscopic picture, which makes the audience feel that the scene has come to the face or entered the deep recess of the screen, which can produce a strong sense of immersion.

Redo, ARRIAlexa digital camera and 3D shooting, are they made with two cameras?

RedOne and ARRIAlexa are both lightweight and economical digital cameras. As standard cameras for digital production, they have become popular models in 3D shooting.

3D camera can be fixed with horizontal or vertical brackets, and its shooting range is flexible and changeable. It is the main equipment used in TV program production at present. Stereo brackets of 3D cameras are generally divided into horizontal (parallel) and vertical (beam splitter) according to their shapes.

Top3DRig, a multi-dimensional stereo shooting stand, is a 3D stereo shooting system independently developed by Beijing Tianyuan Multidimensional. By adjusting the axial distance and included angle of the two cameras, it realizes effective stereoscopic shooting of the real scene. The equipment department is used in various occasions that need 3D production, such as stereoscopic movies, stereoscopic TV programs and stereoscopic advertisements.

Which brands of 3d industrial cameras are better?

TeledyneDalsa, LMI and illness are all fine.

The research of three-dimensional stereoscopic vision has important application value and is also one of the important topics in the field of computer vision research. Stereo vision system can automatically identify and locate the target in the field of view, and can realize the on-site calibration of the system in complex background environment. By identifying and locating the feature points on the moving human body, and analyzing the data, the three-dimensional coordinates, postures and relative distances of the feature points of the moving human body are further obtained. With the deepening of research, its application will be more and more extensive, providing strong technical support for the development of the industry.

At present, 3D machine vision is mainly used for grading fruits and vegetables, wood, cosmetics, baked goods, electronic components and medicines. It can improve the production capacity of qualified products and scrap inferior products in the early stage of the production process, thus reducing waste and saving costs. This function is very suitable for imaging product attributes such as height, shape, quantity and even color.

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