US 2017/0322672 A1 · PROJECTION VIDEO DISPLAY APPARATUS AND VIDEO DISPLAY METHOD

Abstract

An operation target device projects a display video onto a projection surface, which is captured by a camera. An operation detectable region specifying unit specifies respective regions where an operation is detectable and is undetectable based on image data captured by the camera. Finger and pen contact position detection units detect the operation to the operation object based on the image data captured by the camera. The operation target device displays the display video so that the region where the operation to the operation object is detectable, which is specified by the operation detectable region specifying unit, is distinguished from the region where the operation to the operation object is undetectable. In addition, the operation target device changes a display position of the operation object so that the operation object is displayed within a range of the region where the operation to the operation object is detectable.

Claims13

Dependent claims

A projection video display apparatus controllable by an operation to an operation object projected onto a projection surface, the projection video display apparatus comprising:

a projection unit that projects a display video onto the projection surface;
an image capture unit that captures the projection surface;
an operable region specifying unit that specifies each of a first region where the operation to the operation object is detectable and a second region where the operation to the operation object is undetectable in a range in which the display video is projected on the projection surface, based on image data captured by the image capture unit;
and
a detection unit that detects the operation to the operation object based on the image data captured by the image capture unit,
wherein the projection unit can project a display video in which the first region where the operation to the operation object is detectable, which is specified by the operable region specifying unit, is displayed so as to be distinguished from the second region, and changes a display position of the operation object so that the operation object is displayed within a range of the first region where the operation to the operation object is detectable.

3 more elements

A video display method by a projection video display apparatus comprising a projection unit that projects a display video onto a projection surface, an image capture unit that captures the projection surface, an operable region specifying unit that specifies each of a first region where an operation to an operation object is detectable and a second region where the operation to the operation object is undetectable, and a detection unit that detects the operation to the operation object, and being controllable by the operation to the operation object projected onto the projection surface, the video display method comprising the steps of:

specifying, by the operable region specifying unit, each of the first region where the detection unit can detect the operation to the operation object and the second region where the detection unit cannot detect the operation to the operation object in a range in which the display video is projected on the projection surface, based on image data captured by the image capture unit;
displaying, by the projection unit, the display video so that the first region which is specified by the operable region specifying unit is distinguished from the second region;
and
changing, by the projection unit, a display position of the operation object so that the operation object is displayed within a range of the first region where the operation to the operation object is detectable, which is specified by the operable region specifying unit.

1 more element

Dependencies are inferred from the claim text.

Projection video display apparatus and video display method

Life of this patent

Projection video display apparatus and video display method

Life of this patent

Abstract

Claims13