Recently, researchers at the University of Bristol in the United Kingdom have developed a three-dimensional holographic image technology that can be controlled by tactile sensing, which is usually only used as a sci-fi element in movies, such as Star Trek. The commander in the control fleet is controlled by three-dimensional holograms.
It is known that three-dimensional holographic imaging involves a technique called UltraHapTIcs that projects a two-dimensional image onto a vertical plane. Researchers at the University of Bristol have improved the technology to create three-dimensional images. The project's researcher, Dr. Ben Long, focused the ultrasound on an area and created a three-dimensional shape by disturbing the surrounding air. According to the researcher, the ordinary image only records the light intensity information of each point of the object, and the bit image information is lost. Only a two-dimensional plane image is obtained, and there is no stereoscopic effect. The three-dimensional hologram is the principle of interference by coherent light superposition, and the interference fringes of the two kinds of light waves on the recording medium are recorded. When the same hologram is irradiated with the original reference light wave, we can observe the original A three-dimensional image of the object being illuminated. If we zoom in on the technology, we can get a more comprehensive image of the 3D holographic data, just like a bare-handed person creates a visible holographic message out of thin air.
Researchers say that holograms created with ultrasound can be "suspended" in mid-air. When the experiencer touches the hologram with his hand, he can also feel the vibration unique to the ultrasound. Therefore, one of the applications of this technology is to enhance the entertainment effect. The user can feel the fun of the game through the strength of the sound wave. In addition, another key use of 3D holograms is to help surgeons explore CT scan results and present the patient's basic situation on a three-dimensional image. The surgeon analyzes and explores the three-dimensional image to improve the treatment effect.
At present, the technology developed by the University of Bristol has not been promoted. It is only used for testing in the laboratory. If one day, the 3D hologram technology can enter the home, then we can describe it like Star Trek. Get information and control other equipment in the air.
Comments:
Once developed and promoted by the University of Bristol, the technology will bring great convenience to people's lives. Because it can support the tactile sensation, for example, if we want to activate a button, we can control the haptic signal through the 3D holographic image control, and finally feedback to the sensor. In the future, we can boldly envisage that we can control all kinds of household electrical appliances by simply "spacing" in the air. Let the technology in the science fiction film become a reality and enter the homes of ordinary people.
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