A. The constant bit rate compression is slow, and large dynamic pictures may appear unclear.
B. The variable bit rate compression speed is fast, and the large dynamic picture may appear unclear.
C. The constant bit rate compression speed is fast, and the large dynamic picture may appear unclear.
D. The variable bit rate compression is slow, and the large dynamic picture may appear unclear.
A. True
B. False
A. The smaller the value of the signal-to-noise ratio, the less light is needed and the more sensitive the camera is.
B. The larger the signal-to-noise ratio, the smaller the image noise interference and the higher the image quality.
C. Signal-to-noise ratio is the ratio of signal to noise of the camera output image signal.
D. The signal-to-noise ratio should not be less than 45dB, and the cameras on the market are generally above 50dB.
A. 4, 4
B. 1, 1
C. 4, 1
D. 1, 4
A. The closer the subject is, the shallower the depth of field; the farther the subject is, the deeper the depth of field
B. The larger the sensor target, the deeper the depth of field
C. The longer the focal length of the lens, the shallower the depth of field, and the deeper the depth of field
D. The larger the aperture, the shallower the depth of field: the smaller the aperture, the deeper the depth of field
A. Decoder web configuration interface
B. Network management interface
C. IVS client
D. IPC Web Configuration Interface
A. Wire stripper
B. Terminal block
C. Electrostatic gloves
D. Network cable tester
A. 90
B. 20
C. 25
D. 13.5
A. Gun machine
B. Ball machine
C. Analog camera
D. Network camera
A. IPC
B. Domain slave VCN
C. Domain master VCN
D. VMU
A. Normal mode
B. Black and white mode
C. Corridor mode
D. Low-light mode
A. Large screen controller
B. Large screen display
D. VCN3000
