Perspective Projection Imaging for HMD Viewing Angle Confirmation
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Solution Overview
Problem
The challenge lies in converting wide-angle images, such as fisheye images, into perspective projection images suitable for head-mounted displays (HMDs) while ensuring the image region corresponds to the HMD's viewing angle, as traditional methods fail to accurately represent the object's fit within the viewing angle, making it difficult to confirm the perspective projection image on a normal plane display.
Innovation Solution
An image processing apparatus that generates a perspective projection image from a wide-angle image by obtaining parameters related to a predetermined viewing angle, converting the image using central projection methods, and superimposing region information to highlight the image region corresponding to the viewing angle, utilizing a CPU, GPU, and UI units to facilitate display on HMDs or plane displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wide-angle image is cut out to create a perspective projection image for HMD display, then the image is suitable for HMD viewing, but it becomes difficult to confirm whether objects fit within the viewing angle on a normal plane display
Solution Approach 1:
The patent introduces region information as an intermediary visual element that is superimposed on the perspective projection image. This region information (such as overlays or annotations) serves as a mediator between the narrow-angle perspective image and the viewer's need to understand the viewing angle boundaries, enabling easy confirmation of whether objects fit within the HMD's viewing angle while maintaining the image's suitability for HMD display
Solution Approach 2:
The patent adds a visual dimension by superimposing region information onto the perspective projection image. This additional visual layer provides contextual information about the viewing angle boundaries without altering the underlying perspective image, allowing viewers to understand the angular constraints while viewing the image on a normal plane display
Data Source
AI summary
An image processing apparatus configured to generate a perspective projection image from a wide-angle image. The image processing apparatus includes one or more memories storing instructions and one or more processors executing the instructions to function as a first generation unit configured to generate the perspective projection image from the wide-angle image based on a first parameter related to a predetermined viewing angle, and an output unit configured to output the generated perspective projection image. The perspective projection image includes region information indicating an image region corresponding to the predetermined viewing angle in the wide-angle image.