CROSS REFERENCE TO RELATED APPLICATIONS

This application is a National Stage of International Application No. PCT/JP2016/060120 filed Mar. 29, 2016, the entirety of which is incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to a content projection control device, an information processing method, and a program that achieves the content projection control device and especially relates to a process regarding content projected onto a projection area.

CITATION LIST

Patent Literature

Patent Literature 1: JP 2014-170374 A

Patent Literature 2: JP 2010-139575 A

Patent Literature 3: JP 2001-67015 A

BACKGROUND ART

For example, there has been widely spreading a projection device that projects content (visual information) onto a required projection target such as a whiteboard and a wall of a worn. Further, techniques that assist the content projection performed by such projection device have been variously proposed.

Patent Literature 1 discloses a technique that calibrates a displacement between a coordinate system of a virtual screen on which Computer Graphics (CG) is displayed and a coordinate system of a real environment visually perceived through the virtual screen by projective transformation or similar method.

Patent Literature 2 discloses a technique that adjusts a depth of focus of a projected image to prevent deterioration of an image quality such as a blurred virtual image formed with the projected image.

Patent Literature 3 discloses a technique that adjusts a projection area using an adjustment chart.

SUMMARY OF THE INVENTION

Technical Problem

However, in the case where a condition of a projection area onto which content is projected is poor, for example, when at least a part of a color or a pattern of a projection-target wall affects a display aspect of the content, or when an attachment such as a calendar or a clock overlaps with the projection area, visibility of the projected content is possibly deteriorated.

In view of the above-described problem, an object of the present invention is to suppress deterioration of visibility of projected content even when a condition of a projection area is poor.

Solutions To The Problems

A content projection control device according to the present invention includes a content data acquisition unit, a projection area data acquisition unit, a deteriorated part identification unit, and a display aspect change unit. The content data acquisition unit is configured to acquire content data representing content that includes at least one or more components. The projection area data acquisition unit is configured to acquire projection area data representing a projection area. The deteriorated part identification unit is configured to identify a deteriorated part based on the projection area data. The deteriorated part is a part where a projection condition is deteriorated in the projection area. The display aspect change unit is configured to change a display aspect of a component displayed on the deteriorated part among the one or more components included in the content data, based on a position of the identified deteriorated part in the projection area and the content data displayed on the projection area.

Thus, the display aspect of the component on the deteriorated part in content projected onto the projection area can be changed.

The above-described content projection control device according the present invention can be configured as follows. The deteriorated part identification unit is configured to identify the deteriorated part based on a captured image and an image of the content. The captured image is an image produced by capturing an image of the content projected onto the projection area, and the content is represented by the content data.

This allows properly identifying the component requiring a correction in the projected content.

The above-described content projection control device according to the present invention can be configured as follows. The content projection control device includes a priority identification unit configured to identify a priority of the component included in the content. The display aspect change unit is configured to change the display aspect of the component displayed on the deteriorated part, based on a threshold according to the identified priority and a level of deterioration of the component.

Accordingly, the display aspect change is not executed on all components displayed on the deteriorated part but can be selectively executed on the component selected based on the priority of the component.

The above-described content projection control device according the present invention can be configured as follows. The priority identification unit is configured to identify the priority based on a feature quantity of the component included in the content.

This allows setting the appropriate priority according to the feature of the component.

The above-described content projection control device according to the present invention can be configured as follows. The priority identification unit is configured to identify the priority based on a projected size of the component included in the content.

It can be said that the larger the projected size of the component is, the higher a degree of importance of this component is; therefore, the configuration ensures appropriately changing the display aspect in accordance with the degree of importance of the component.

The above-described content projection control device according the present invention can be configured as follows. The priority identification unit is configured to identify the priority based on an attribute of the component included in the content.

It can be said that the degree of importance of the component is correlated to this attribute of the component; therefore, the configuration ensures appropriately changing the display aspect in accordance with the degree of importance of the component.

The above-described content projection control device according to the present invention can be configured as follows. The component includes a character. The display aspect change unit is configured to change a display color of the character included in the component to a color emphasized with respect to a color of the deteriorated part.

This ensures suppressing the deterioration of visibility of this character when the visibility of the character included in the component is deteriorated due to an influence of the deteriorated part.

The above-described content projection control device according to the present invention can be configured as follows. The component includes a character. The display aspect change unit is configured to change a display color other than a display color of the character included in the component to a color assimilated to a color of the deteriorated part.

This ensures suppressing the deterioration of visibility of this character when the visibility of the character included in the component is deteriorated due to the influence of the deteriorated part.

An information processing method according to the present invention executed by an information processing device includes: a content data acquisition step of acquiring content data representing content that includes at least one or more components; a projection area data acquisition step of acquiring projection area data representing a projection area; a deteriorated part identification step of identifying a deteriorated part based on the projection area data, the deteriorated part being a part where a projection condition is deteriorated in the projection area; and a display aspect change step of changing a display aspect of a component displayed on the deteriorated part among the one or more components included in the content data based on a position of the identified deteriorated part in the projection area and the content data displayed on the projection area.

By this information processing method, effects can be obtained similar to those of the above-described content projection control device according to the present invention.

Furthermore, a program according to the present invention is a program that causes an information processing device to execute a process executed as the information processing method.

EFFECTS OF THE INVENTION

The present invention ensures suppressing deterioration of visibility of projected content even when a condition of a projection area is poor.

