Method, system and recording medium for building environment map

#The invention relates to a mixed reality technology, and more particularly, to a method, a system and a recording medium for building environment map.

#Mixed Reality (MR) is a technology that uses computer simulation technology to combine the real world and the virtual world to create a mixed world in three dimensional space. A virtual screen displayed on the head-mounted display worn by a user allows the user to simultaneously view a physical object of the real world coexisting together with a digital virtual object as a mixed environment that is mainly visual and combines the perceptions of hearing and touching. The user can experience the mixed reality like the real world and can interact with the virtual object in the mixed environment.

#In order to render the virtual object that matches with the real world, it is necessary to create lighting data of the real world before the mixed environment can be built. In a conventional building process, a mixed reality device executes a building tool before the user has access to application content, and requires the user to align a camera or a calibrator of a head-mounted display with a set of matching points to create the lighting data. However, such a building process is time consuming, and the user may often encounter difficulties in aligning with the matching points when operating the head-mounted display.

#FIG. 1 is a block diagram illustrating a mixed reality system according to an embodiment of the invention.

#FIG. 2 is a flowchart illustrating a method for building environment map according to an embodiment of the invention.

#FIG. 3 is a schematic diagram illustrating a viewing direction and a translation direction according to an embodiment of the invention.

#Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.

#It will be understood that, in the description herein and throughout the claims that follow, when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being “directly connected” or “directly coupled” to another element, there are no intervening elements present. Moreover, “electrically connect” or “connect” can further refer to the interoperation or interaction between two or more elements.

#It will be understood that, in the description herein and throughout the claims that follow, the terms “comprise” or “comprising,” “include” or “including,” “have” or “having,” “contain” or “containing” and the like used herein are to be understood to be open-ended, i.e., to mean including but not limited to.