Abstract: A document presentation device 10 includes a video signal controller 50 adapted to output a video signal of a video image for display on a display unit 40; and a remote controller RC. The video signal controller 50 includes a video signal processing unit 60 for creating a live video image within the field captured by an image sensor 31a; a zoom setting unit for setting in advance an enlargement ratio for the zoom image; and a zoom image control unit that upon receiving an instruction from a zoom instruction unit of the remote controller RC displays on the display unit 40 an enlarged live image of a portion of the live video image at the enlargement ratio that is set in advance by the zoom setting unit; and that upon receiving an instruction from a position instruction unit of the remote controller RC, changes the zoom field.

Abstract: A document presentation device 10 includes a video signal controller 50 adapted to output a video signal of a video image for display on a display unit 40; and a remote controller RC. The video signal controller 50 includes a video signal processing unit 60 for creating a live video image within the field captured by an image sensor 31a; a highlight setting unit for setting size and brightness differential of the highlighted region; and a highlighted image display control unit that upon receiving an instruction from a highlight instruction unit of the remote controller RC sets a portion of the live video image to a highlighted region based on settings that are set in advance through the highlight setting unit, and displays the live video image on the display unit 40; and that upon receiving an instruction from a position instruction unit of the remote controller RC changes the position of the highlighted region.

Abstract: A document presentation device 10 includes a video signal controller 50 adapted to output a video signal of a video image for display on a display unit 40; and a remote controller RC. The video signal controller 50 includes a video signal processing unit 60 for creating a live video image within the field captured by an image sensor 31a; a masking setting unit for setting the brightness differential of the masking region; and a masking image display control unit that upon receiving an instruction from a masking instruction unit of the remote controller RC, sets a portion of the live video image to a masking region based on settings that are set in advance through the masking settings portion, and displays the live video image on the display unit 40; and that upon receiving an instruction from a position instruction unit of the remote controller RC changes the position of the masking region.