HDMI video capture card is an interface type for transmitting video signals in TV signal transmission. It separates the brightness information and color information of the video signal. In this way, the video signal includes one brightness signal and two color difference signals that are transmitted separately, thus avoiding Crosstalk between signals, resulting in higher image quality compared to composite TV signals and S-video.
The colors of the HDMI video capture card component interface are red, green and blue! The component interface of the HDMI video capture card can also be called the component interface. HDMI and component HDMI video capture cards are the most technologically advanced comprehensive HDMI video capture cards in the video industry. 1080i is a high-definition television signal format. "1080" means there are 1080 horizontal scanning lines in the vertical direction, and "i" means interlaced scan video display. 1080i scans odd-numbered vertical images first, and then scans even-numbered vertical images, so it only requires half the bandwidth of 1080P. However, when it encounters a high-speed moving object, there will be shaking around the object.
Five major features of HDMI video capture card
1. HDMI video capture card high-speed transmission bandwidth: high-speed PCI-E 1× high-speed interface, its bandwidth transmission speed is more than twice that of the PCI interface slot.
2. HDMI video capture card has multiple interface inputs: HDMI, 1080i ana-log component, S-Video and composite video input interfaces.
3. HDMI video capture card supports capture formats: 1080 23.98 p/24 p /25 p /30 p /50i/59.94i/60i, 720 50p/59.94p/60p, NTSC/PAL, S-Video. Video input can use PAL , NTSC format.
4. High-quality audio and video synchronization of HDMI video capture card: Strict requirements for accurate capture of each frame allow you to enjoy true digital video and audio capture and achieve perfect video and audio synchronization.
5. The HDMI video capture card occupies a low host CPU rate: real-time full-resolution high-definition uncompressed audio and video recording frees the CPU from video decompression work and has functions such as motion-adaptive interlacing processing, digital scaling, and line-field frequency changes. , and has a variety of digital image and digital noise reduction technologies.
