H20-871-ENU 試験問題を無料オンラインアクセス

The camera can be divided into ( ) according to the type of sensor. (Multiple Choice)

• A.CMOS camera
• B.2/3-inch camera
• C.CCD camera
• D.1/3 inch camera

Automatic Gain Control (AGC), which detects the level of the video signal and automatically adjusts the gain, so that the camera can work in a large illumination range, and automatically increases the sensitivity of the camera in low illumination, thereby increasing the intensity of the image signal to get clear picture.

• A.False
• B.True

Which function can effectively compensate for the darkness of the main body of the picture when the camera is shooting in a backlight environment?

• A.Automatic gain
• B.Backlight compensation
• C.White balance
• D.Strong light suppression

The following lens selection estimation formula, the correct one is ().
(F: lens focal length; D: distance of the subject from the lens; M: width of the subject to be ingested; W: width of the sensor target)

• A.F=W×M/D
• B.F=M×W/D
• C.F=M×D/W
• D.F=W×D/M

Regarding the function of backlight compensation, which of the following statements are correct? (Multiple Choice)

• A.Backlight compensation has no effect on the observability of the background area
• B.Turn on the backlight compensation function to determine the AGC level only for one sub-area in the field of view.
• C.After the backlight compensation is turned on, there is no influence on the observability of the foreground target.
• D.Turn on the backlight compensation function, which may cause background overexposure