Perspectives

TiPiT v1.5 provides four kind of perspectives, "Horizontal", "Single", "Double" and "Object". The two perspectives of "Horizontal" and "Single" may apply to a scene with only one vanishing point. Other perspectives may apply to a scene with two vanishing points. You may select better one fitting a scene of your input image in the four perspectives. Each perspective provides the 3D geometry constructed by some walls for it.

Horizontal

It may apply to such a scene with a horizontal line as the below samples. This perspective is called as "none" in TiPiT v1.0. This perspective creates 3D geomeries of board bent like a letter L in a 3D space of TiPiT.

(a) Flying Bird

(b) Red Boats 1875 by
Monet
(c) Cherry Tree and Cherry Blossom

Fig. Sample Images for Horizontal

Fig. 3D Geometry for Horizontal

In the 3D geometry of the above figure, the front purple side of the board bent is a wall named by "Goal". And the other green side (as a level surface) is a wall named by "Floor".

Single

This perspective may apply to such a scene with a explicit vanishing point as the below samples. This perspective creates 3D geomeries of a one-side-opened box like a blind alley in a 3D space of TiPiT.

(a) Alyscamps 1888 by
Vincent.V.Gogh

(b) Path in th Artists Garden 1902
by Monet
(c) Sunset

Fig. Sample Images for Single

Fig. 3D Geometry for Single

In the 3D geometry of the above figure, the fornt purple side of the box is a wall named by "Goal". The bottom side is a wall named by "Floor". The right red side is a wall named by "Right Wall". The left orange side is a wall named by "Left Wall". And a top blue side is a wall named by "Ceiling".

Double

It may apply to such a scene with two vanishing points as the below samples. This perspective creates 3D geomeries of an outside corner (or an interior) of a corridor in a 3D space of TiPiT.

(a) Corner in a Room

(b) Gallery

Fig. Sample Images for Double

Fig. 3D Geometry for Double

In the 3D geometry in the above figure, the left orange side is a wall named by "Left Wall". The right purple side is a wall named by "Right Wall". The bottom green side is a wall named by "Floor". And the top side is a wall named by "Ceiling".

Object

It may apply to such a scene with two vanishing points as the below samples. This perspective creates 3D geomeries of an inside corner (or an exterior) of a corridor in a 3D space of TiPiT. Just, it is exactly like a parting of the ways in a cave. However, it closely resenble with the below sample of a building, also.

(a) Building taken by a feild camera

(b) Path

Fig. Sample Images for Object

Fig. 3D Geometry for Object

In the 3D geometry of the above figure, the right red side is a wall named by "Right Wall". The left black side is a wall named by "Left Wall". The bottom green side is a wall named by "Floor". The top blue side is a wall named by "Ceiling". The right purple side of the object is a wall named by "Object Right Wall". And the left orange side of the object is a wall named by "Object Left Wall".