Parallax Stereoscopic Printing is Being Applied in Commercial Advertisements (Part 2)

With a large-format printer (or photo machine), a large three-dimensional poster with a width of 44 inches and an unlimited length can be printed. In general, it takes about 2 to 3 hours to make a three-dimensional image, and about 20 minutes to print an A4 size. However, if you want to produce high-quality stereoscopic images, the resolution of the original image is the key. Taking a 4x5 inch 3D image as an example, the resolution of the original image is preferably 2400 dpi or more.

At present, the majority of users use printers based on EPSON, which may be the reason for their ease of use and image expressibility. Generally, they are divided into 720, 1440, and 2880 models. In addition, HP or Canon printers are often used by some users, mainly 600, 1200, 2400 and other models. Pay attention to the relationship between these numbers and stereoscopic layers, such as the number of layers divided, can not be divided by the model, it means that the printer may not be able to properly print out the image. For example, if the layer to be divided is 7, and the 720 model printer is selected, 720 cannot be divided by 7, so when the image is printed, some abnormal display may occur. This is the point that you must pay attention to when making stereoscopic images. On this point, we need to constantly learn and explore, because there is no printer specifically designed to produce three-dimensional printing. The largest outdoor flash advertisement in China was born. Recently, a friend of Beijing may have been fortunate enough to see a special poster on a repainted billboard. This distinctive billboard is located on the Third Ring Road in Chaoyang District, Beijing. It is the slogans IBH has for "I want blue" and "I To the red V-shaped billboard. When driving past the billboard, first see the word "blue" in red, and when the car travels a distance, the color of the word turns blue. Instead, if you drive from another direction, you will first see the blue "red" word, and then see the word color change to red. This realizes the idea of ​​"I want x-color" in the slogan. The V-shaped billboard is 8 meters high and 56 meters long, totaling 448 square meters. Among them, the part of the paintings is 20 square meters, which is rare in the world at the same time as a large-area overall reversal advertisement. Do not underestimate these discoloration words, which contain world-class digital image processing technology. In foreign countries, the largest reversal advertisements are generally based on a large plane and place the small-format scrolling contents on one of the grating plates. The maximum size is less than 3m2 (2.98m2), mainly because of the traditional grating plates. The maximum size is 122 x 244 cm (48 x 96 inches). This method of production is actually a small group of small pieces of face painting, this method depends on your viewing position, that is to say where to go where to turn, and can not get the dynamic effect of the entire image at the same time flip. Seamless splicing technology, to increase the small area according to the production company - Shenzhen Meidi Leopard Company, this is a large-format real seamless seamless splicing at the same time turning the technology, is still relatively advanced in the international. The billboard consists of 12 grating panels with a total area of ​​20 square meters, and appropriate outdoor waterproofing. Make it more in line with the requirements of outdoor settings. It is said that the production of outdoor scrolling advertising project also set another miracle. From design, trial printing, output, production to packaging, it took only 36 hours. According to statistics, this speed is still the fastest in the world. The entire process of designing, trial production, drafting, outputting, commissioning and assembly of similar advertising in the world may require many experts for months to complete. In addition, such a large project can be completed in the United States by companies of a size such as BIG 3D. However, the price may be "astronomical". Although it is very effective, it can be regarded as an expensive "boutique".

According to a person in charge of Medizine, it was revealed that this time, because of the prefabricated method, the product to be installed was scientifically numbered. Therefore, the installation company did not have any personal guidance, no practical experience, and no precedent. Under the circumstances, only one-page installation notice was provided, and the overall assembly of this 448-square-meter billboard was completed in two and a half days. Although the production cycle is very short, it fully meets the requirements of the merchants. Dynamic sense, change the picture clearly, eye-catching discoloration effect is satisfactory.

Using digital production software to shorten the production cycle In this production process, the company used inkjet printer output for the first time to make such large-format flip paintings. However, bold attempts will often bring two results. I believe we must know that What results, this time is the result of great joy for both advertisers and producers. Of course, for producers, in addition to upgrading their technological capabilities to a higher level, they also bring greater profits. This also proves once again that the use of inkjet printer output can produce three-dimensional advertisements that meet market demand. The other point is that current inkjet technology can effectively help three-dimensional printing technology to develop faster, making it possible for commercial promotion of this technology. To achieve the discoloration (turnover) effect of the billboard, the 3D4U digital stereo technology and grating material technology are used. The output of this color-changing image effect is called a turn-based painting. The turn-painting can see different kinds of images at different angles. The visual effect map, which is reflected in the change in the color of the same pattern, becomes a discoloration painting.

By using it for the production of advertisements, it is possible to realize the output of multiple creatives within the same frame, and the changed images are more easily attracted to attention. Experts know that three-dimensional production may seem complicated, but in the end it's not as complicated as turning a picture. During the production of the largest outdoor retractable advertising project in the country, due to time constraints, only digital inkjet output was adopted. This is not the same for the large screen printing technology adopted by foreign companies in the past, because screen printing belongs to the flat printing category, there is no obvious linear distortion, and better output results can be obtained. However, the digital inkjet output method is to obtain the image output from the relative motion of the paper-feeding system and the head, which has serious longitudinal linear accumulative distortion, acceleration of the head movement, and non-uniformity caused by the brake. Due to the existence of these problems, only small-format flap paintings are generally made using inkjet printers.


In the past, we always looked for the reason on the grating material and did not realize the seriousness of nonlinear distortion produced by the output device. In this regard, we can try to solve it by outputting software. For this reason, the production company made further improvements to the 3D4U software. Efficiently solves the problem of using digital inkjet printers to easily make large-format flap painting technology, and successfully developed the best design solution that does not require long-distance calibration of large-format output to be suitable for large-format composite output. The adaptation to a random code raster image synthesis system" effectively simplifies the production of visual effects image technology.

The new grating material completely solves the problem of vertical splicing. The existing variable viewing angle layered roll-type grating material is an ideal material for realizing large-size three-dimensional and reversal paintings, and can also indicate that the production company adopts a soft-rolled grating material that can achieve no longitudinality. The splicing scheme is a method worthy of promotion. In the past, three-dimensional advertisements were based on the perspective of the grating material to determine the characteristics of the painting or three-dimensional, and the technology used in large-scale outdoor raster advertising is generally a grating plate, the cost is relatively high, but also by the longitudinal size of the grating plate The maximum size is only 2.4m (96 inches). Therefore, if a large-sized work is produced, it must be stitched. The splicing of the raster image is different from the plan view, which involves the synchronization of the alignment of the raster image and the overall image, which are the key factors determining the final output of a raster image. In order to achieve the desired effect of the picture, in order to achieve the requirements of all the splice planes at the same level in high-altitude operations, it is necessary to have experienced experts in coordination and command at the site, thus forming a situation where experts control the market.

Nowadays, the new type of soft-rolled grating material can be 1050 meters (3000 feet) in length, that is, it does not require longitudinal splicing within 1050 meters. Another factor influencing the rapid development of large-scale lenticular advertising is that traditional lenticular materials use plexiglass as the substrate, which is not only expensive but also inconvenient to transport and handle, and has fatal defects such as being easily deformed or damaged.

Grating layering technology, new breakthroughs in the three-dimensional printing industry The rapid advancement of modern technologies has achieved unprecedented breakthroughs in the three-dimensional printing industry for decades. The grating layering technology is a technology that replaces traditional grating plates with thin-film lenticular gratings. The grating material is designed according to the focal length imaging principle. The range of the viewing angle and the visible distance mainly depend on the thickness of the grating. The angle of view and the viewing distance can be adjusted by changing the thickness of the grating. A large angle of view (above 45°) is used for animation. The production of a small viewing angle (25° or less) is used for the production of stereoscopic images. The medium used between the lenticular film and the image can be solved locally, such as organic glass plates, glass plates, PVC plates, and other transparent materials, and the processing and processing techniques for these media have now reached a very mature point. The lenticular film uses PET polyester synthetic material and adopts a continuous production method of injection rolling and rolling afterwards. The linearity and accuracy consistency can achieve the desired effect, and mass production and transportation can be realized, thereby reducing production and transportation costs. The material can obtain the required viewing angle by adjusting the transparent layer media, without having to produce a variety of materials with different viewing angles as in the conventional grating sheet.

General-purpose film lenticular lens gratings have high flexibility, low weight, and are not easily deformed or broken. They have extremely high toughness. When they are synthesized with organic glass plates or other transparent materials, they will form strength like bulletproof glass and car protection. The function of broken glass. At the same time, it also has excellent UV resistance and anti-aging ability. It is a rare grating material for outdoor and indoor advertising. Since the general-purpose film lens lenticular material adopts a continuous package production method, it achieves the goal of large-format seamless splicing. The leading alignment method solves another problem. In the past, there was not a digital processing tool dedicated to raster image segmentation. Using a planar image processing tool to divide a raster image would make the segmented image non-uniform, resulting in a deviation. In addition, the image and the raster are manipulated using an artificial alignment method. Since the success or failure of the alignment depends on the experience of the counterpart, the uncertainties increase, and, if it is a large-scale reproduction image, the alignment at a short distance is If it does not work, according to the size of IBM's reprinted billboards, if the traditional method of alignment is to be retreat to at least 50 meters, this is a headache. So far, the case of splicing output raster images in real life is extremely rare.

The 3D4U software has a special function for outputting image alignment. It actually generates a raster alignment line that can be customized in the direction of the lenticular lens in the center of the segmented output raster image block. The position of the raster-to-bit line can predetermine the position of the content of the reversal. When the image is aligned, as long as the position of the raster-to-bit line is in the same position within the same lenticular lens, the position of the preselected content of the raster image can be consistent. Sexual alignment, thus avoiding artificially created errors, and therefore, in large image stitching, does not need to exit a very long distance to align, and as long as each part of the image adopts the above method to pair by bit If you do, eventually each piece of the stitched-out image will be able to achieve overall synchronization.

3D4U software, unique features In the production of animation images, because the original image material color, brightness, contrast, saturation and other factors will affect the viewing effect of the output animation, often only use the grating synthesis function to simply synthesize several images It is not enough to get together. 3D4U's animation special effects function can make any animation image get satisfactory output. This is not available in any other animation synthesis software.

1. Brightness balance

The average brightness obtained by weighting the average brightness of each material image together is taken as the brightness standard, and the reference is used to increase or decrease the output brightness of the animation. The advantage of brightness equalization adjustment is that it can reduce the brightness contrast of the material image, mask the overly prominent color defects in the animation, and make it more clean and smooth when turning.

2. Ink limit

"Ghosting" is a common phenomenon in the production of animations. In particular, two or more images with large differences in color often leave behind "dark images" of deep-colored images at the bottom of light-colored images. The quality of the animation output. Ink limit