The current status and future of multimedia technology
summary:
With the rapid development of computer technology, multimedia technology based on computer technology plays an important role in life. The article describes multimedia based on the concept of multimedia and the current development status of multimedia, explains the importance of multimedia in real life, and discusses the trend of multimedia development.
Keywords: multimedia, current situation, trend
1. Introduction
With the rapid development of computer technology, computer-based multimedia technology has been widely used and penetrated into all aspects of social life. Multimedia technology is the fastest-growing, widely used and fastest-changing technology in the field of information technology, and is a hot topic in the development and competition of electronic technology. Multimedia technology integrates various functions such as intelligence, sound, images, data, video, and communication. With the help of the increasingly popular high-speed information network, it can realize the global networking of computers and the sharing of information resources. Therefore, it is widely used in various industries such as industry, agriculture, services, education, communications, military, and finance. Today, as modern science and technology tells the development, the transmission of information, the processing of information and the sharing of information have become the key to the progress of modern society.
2. Current status of multimedia technology development
2.1 Concept of multimedia technology
Multimedia technology uses computer interactive integrated technology andDigital CommunicationNetwork technology processes multiple representation media (text, graphics, images, animation, video andAudio), enables a variety of information to establish logical connections, integrate into an interactive system, and completes a series of interactive operations information technology. It mainly involves multimedia data processing technology (interactive interface design; image processing; audio signal processing; video technology; compression and encoding; virtual reality); multimedia communication and distributed multimedia; multimedia applications, etc.
2.2 Characteristics of multimedia technology
(1) Diversity. It enables the computer to process a range of information from a single traditional numerical, text, and still images to text, graphics, images, animation, audio and video images.
(2) Interactiveness. It is one of the most important features of multimedia technology, that is, it can interact with users with human-computer dialogues. Users can manipulate and control multimedia information, and can freely obtain and use information. With this human-computer dialogue method, communication and learning can be communicated and learned, thereby achieving the role of solving practical problems.
(3) Integration. It enables computers to express a certain content in a variety of different forms of information. Multimedia technology is based on digital processing, and the application of integrating various media such as text, sound, graphics, images, animation, audio and video has a variety of technologies.System integrationSex basically includes the latest software in today's computer fieldhardwaretechnology.
2.3 Current status of multimedia technology
(1) Applications in data compression and image processing
Multimedia computer technology is a processing technology for three-dimensional graphics, surround sound, color and full-screen moving pictures. Digital computers face various multimedia problems such as numerical, text, language, music, graphics, images, animation and videos, and carry the throughput, storage and transportation of analog information converted from digital quantity.
With the rapid development of network, wired and infinite communication systems, the general application of interactive computers and interactive TV technologies, as well as the comprehensive services of video and audio data, more and higher requirements are put forward for computer multimedia data compression encoding, decoding technology and the standards it follows.
(2) Application of video and audio information processing
In multimedia technology, the file formats that store sound information mainly include: WAV, VOC, MIDI, AIF, SON and RMI files.
Data compression technology provides an effective way for the compression, file storage and distributed utilization of images, video and audio signals, and improve communication trunk lines and transmission efficiency. At the same time, it enables computers to process audio and video information in real time to ensure that high-quality video and audio programs are played.
(3) Network application
With the popularity of the international Internet, computers are undergoing a networked revolution. In this revolution, traditional multimedia means have conflicts with today's network transmission environment due to their large transmission volume, so they should strive to implement multimedia technology under the conditions of slow network transmission. Implementation through the following ways:
Reducing the volume of streaming media files: An important prerequisite for implementing multimedia technology in a network environment is to minimize the huge multimedia information under the quality that users can accept. To make it transmit in a slow network, it will inevitably reduce the amount of information transmission, and it will require large-scale compression. However, it must be noted that this compression method is at the expense of the quality of multimedia information, and it is difficult to expect that the multimedia information produced in this method can achieve traditional multimedia vision and hearing.
Information streaming transmission: In addition to reducing the size of multimedia files, another feature of multimedia in the network is that it supports "stream" transmission. The so-called "stream" is a data transmission method. Using this method, the recipient of information can process the received information without receiving the complete information. This method of accepting and processing at the same time solves the problem of multimedia transmission on the network well.
3. Development trends of multimedia technology
The world is moving towards an information age of digitalization, networking and global integration. Information technology will penetrate all aspects of human society, among which network technology and multimedia technology are key technologies to promote the comprehensive development of the information society.
The various multimedia services provided on communication networks represented by the Internet will have a profound impact on the information society. At the same time, multiple multimedia computers connected in different places work together to better realize information sharing and improve work efficiency. This collaborative working environment represents the development trend of multimedia applications.
3.1 Network development trends of multimedia
The development of multimedia technology has enabled multimedia computers to form a more complete collaborative working environment supported by computers, eliminating obstacles to spatial distance and time distance, and providing more complete information services to mankind.
Interactive and dynamic multimedia technology can create more vivid and realistic two-dimensional and three-dimensional scenes in a network environment.
The development of multimedia interaction technology enables multimedia technology to use a variety of human sensory channels and action channels based on pattern recognition, holographic images, natural language understanding and new sensing technologies to extract facial features of specific people through data gloves and track sign language information, and synthesize facial movements and expressions toparalleland very precise way withComputer systemInteract. It can improve the natural awakening and efficientness of human-computer interaction, and realize virtual reality marked by three-dimensional realistic output.
3.2 Development trends of componentization, intelligence and embedding of multimedia technology
At present, the multimedia computer hardware architecture, the video and audio interface software of multimedia computers is constantly improving, especially the architecture design and software,algorithmThe combined solution is to further improve the performance indicators of multimedia computers, but to meet the requirements of the networked environment of multimedia, further development and research of the software is needed to make it more componentized and intelligent.
Embedded multimedia systems can be applied in all aspects of people's lives and work, in the fields of industrial control and business management, as well as medical electronic devices, multimedia mobile phones, handheld computers, hand-loaded navigation machines, entertainment and other fields.
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