Dangbei Mars User Manual page 12

Image Correction Settings
1.Keystone Correction
ㆍGo to [Settings] -- [Keystone].
ㆍTo use Auto keystone correction, select [Auto], and the screen will automatically be corrected.
ㆍTo use Manual keystone correction, select [Manual] to adjust the four points and the image shape.
2.Intelligent Screen Fit
ㆍGo to [Settings] -- [Keystone] , and turn on [Fit to Screen].
ㆍFollow the on-screen instructions to automatically adjust the projected image to fit the screen.
3.Intelligent Obstacle Avoidance
ㆍGo to [Settings] -- [Keystone] -- [Advanced], and turn on [Avoid Obstacles].
ㆍFollow the on-screen instructions to automatically adjust the projected image to avoid any objects on the projection surface.
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