DCIF: Resolution 528*384 2CIF (704*288 also called Half D1) Two deinterlaced transforms to form a D1.D1 (704*576) reduced by the horizontal 3/4, vertical 2/3 reduction, converted to 528 The *384 test can well solve the problem of insufficient CIF clarity and too much D1 stream. Between 512k-1m bit rates, stable high-quality images can be obtained.
Dynamic adjustment of coding parameters: In the monitoring system, stationary monitoring scenes can be used to reduce video resolution, image quality, code rate and frame rate. Green wants to maintain a very low bit rate, and when the image changes Can improve the video resolution, quality, code rate and frame rate, to achieve high-quality aluminum box, because the above parameters can be dynamically modified, so you can keep the image continuous, without frequent switching files, both to meet the high image at a critical moment The quality requirements also save hard disk space and network bandwidth. If you do not start video recording or network transmission, adjust the encoding parameters to take effect.
The image resolution commonly used in monitoring: PAL system: QCIF174*144 CIF 352*288 2CIF 704*288 DCIF 528*384
FULL D1 704*576 NTSC system: QCIF 174*120 CIF 352*240 2CIF 704*240 DCIF 528*320
FULL D1 704*480
Dual-stream: Refers to all video streams output by the video encoder via the video encoder. The resolution, frame rate, and bit rate of the output stream can be set independently. The two streams generated can satisfy different application requirements, such as one alert disk storage and one network transmission.
Cyclic recording and non-cyclic recording: Cyclic recording refers to when the program detects that all hard disk space channels in the DVR are full, no need to replace the hard disk, and automatically covers the original recording data. The fee recycling refers to all the hard disk space in the hard disk recorder. Record the video recording when it is full. In this mode, the hard disk must be replaced or the hard disk must be processed (formatted after the video data is backed up) before recording can continue.
Motion detection: A technique for determining whether a video scene has changed by analyzing video images. The movement of the entities in the scene, the change in light, etc., are all considered to have changed.
Dynamic adjustment of coding parameters: In the monitoring system, stationary monitoring scenes can be used to reduce video resolution, image quality, code rate and frame rate. Green wants to maintain a very low bit rate, and when the image changes Can improve the video resolution, quality, code rate and frame rate, to achieve high-quality aluminum box, because the above parameters can be dynamically modified, so you can keep the image continuous, without frequent switching files, both to meet the high image at a critical moment The quality requirements also save hard disk space and network bandwidth. If you do not start video recording or network transmission, adjust the encoding parameters to take effect.
The image resolution commonly used in monitoring: PAL system: QCIF174*144 CIF 352*288 2CIF 704*288 DCIF 528*384
FULL D1 704*576 NTSC system: QCIF 174*120 CIF 352*240 2CIF 704*240 DCIF 528*320
FULL D1 704*480
Dual-stream: Refers to all video streams output by the video encoder via the video encoder. The resolution, frame rate, and bit rate of the output stream can be set independently. The two streams generated can satisfy different application requirements, such as one alert disk storage and one network transmission.
Cyclic recording and non-cyclic recording: Cyclic recording refers to when the program detects that all hard disk space channels in the DVR are full, no need to replace the hard disk, and automatically covers the original recording data. The fee recycling refers to all the hard disk space in the hard disk recorder. Record the video recording when it is full. In this mode, the hard disk must be replaced or the hard disk must be processed (formatted after the video data is backed up) before recording can continue.
Motion detection: A technique for determining whether a video scene has changed by analyzing video images. The movement of the entities in the scene, the change in light, etc., are all considered to have changed.