What is the function of the capture card What is the function of the capture card

The purpose of the capture card is::Transfer the **, image or audio model on different devices to the capture device on the computer, as long as this electronic device supports the corresponding **line,Then you can output the **signal of the TV or mobile phone to the computer。 The frame grabber is a device that can capture, quantize, and encode analog** signals.

It is divided into broadcast-grade ** acquisition card, professional ** acquisition card, and civilian-grade ** acquisition card, and the difference between them is mainly the different image indicators of the collection. Because industrial capture cards such as data acquisition cards are not commonly used, the general acquisition cards default to static image acquisition cards and dynamic acquisition cards. Digitized information can be obtained, stored and released.

The principle of the capture card.

Conversion to and from digital signals, quality of signals, etc. This requires a ** capture card to help. Acquisition is the image that is sampled, quantized, and then converted into a digital image, input, and stored in the frame memory.

process.

The acquisition card is mainly a capture device that captures external photoelectric, audio and other analog signals and digitizes them into the computer for digital processing, mainly using image acquisition card, acquisition card, audio acquisition card (such as sound card), data acquisition card, etc.

Capture device -- The capture card is an indispensable hardware device for us to process, through which we can transfer the signal captured by the camera from the camera tape to the computer.

Principle In the transmission and processing of the first signal, it is necessary to collect the first acquisition card to help, because the first signal of the general camera is analog, continuous signal, and the computer only knows the digital signal (discrete signal), because the computer is binary encoded, therefore, it is necessary to be able to collect the analog signal into the computer, and when collecting, there are also considerations such as the speed of signal acquisition, the conversion between analog signals and digital signals, and the quality of the signal. This requires a ** capture card to help.

The role of the image acquisition card is to import the signal taken in the camera, surveillance, traditional video recorder, camera, mobile phone, *** machine and other analog equipment into the computer to save a kind of image device, it can save the image signal completely, with the corresponding software, the image high-quality resolution control, the data and files are compressed, to ensure that the data and video can be saved for a long time, convenient for work and life.

Capture card, used to analogue camera, video recorder, LD video player, TV output signal and other output data or audio mixed data input into the computer, and converted into computer identifiable digital data, stored in the computer, become a processable data file. According to its use, it can be divided into broadcast-grade capture card, professional grade capture card, and civilian-grade capture card. <

Capture card, used to analogue camera, video recorder, LD video player, TV output signal and other output data or audio mixed data input into the computer, and converted into computer identifiable digital data, stored in the computer, become a processable data file. According to its use, it can be divided into broadcast-grade capture card, professional grade capture card, and civilian-grade capture card.

A capture card is a hardware device designed to convert a variety of external signals into digital signals that can be processed by a computer. Its main function is to convert analog signals or digital signals from external devices (such as cameras, TV signals, game consoles, etc.) into digital signals, and transmit them to computers to achieve functions such as acquisition, processing, and storage.

Capture cards play an important role in a wide range of applications. In film and television production, the signal of the camera, TV signal and other first-class sources can be collected into the computer for post-processing and processing through the capture card. In the field of live broadcasting, the signal of game consoles, cameras and other devices can be collected into the computer through the capture card to realize the live game function.

In the field of visual inspection, such as industrial inspection, medical imaging and other fields, the visual signals transmitted on the site can be collected into the computer for image processing, analysis, recognition, etc.