Image display method and iamge display device

• US 20050206643A1
• Filed: 05/12/2005
• Published: 09/22/2005
• Est. Priority Date: 12/06/1999
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Endoh, Toshio, Fukuda, Mitsuaki
• Granted Patent: US 7,173,620 B2
• Time in Patent Office: Days
• US Class Current: 345/428
• CPC Class Codes: G06F 3/04815 Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
• CPC Class Codes: G06T 13/80 2D [Two Dimensional] animation, e.g. using sprites
• CPC Class Codes: G06T 15/20 Perspective computation
• CPC Class Codes: G06T 19/003 Navigation within 3D models or images
• CPC Class Codes: G06T 2210/36 Level of detail

Abstract

? An image display method is provided, with which a large number of images to be searched can be displayed quickly in a 3D space, with easy to understand image rendering and little strain on the user'"'"'s eyes. The method includes a process of reading in image data of a plurality of images and information about the arrangement of the images in the virtual 3D space; a spatial viewpoint setting/shifting process in which setting and shifting of a spatial viewpoint is specified; a process of converting original shapes of the image data by a parallel expansion projection process including a parallel shifting process regarding the directions of the images and a expansion/shrinking process regarding their size, based on a relation between the information about the arrangement of the images and the spatial viewpoint information, and determining a simplified 2D arrangement as a 2D image; a display image creation process of creating displayed images in accordance with the determined simplified 2D arrangement; and a process of displaying the display images. Through multi-resolution synthesized images and cut images and through the guiding display of a background image, an easy to understand image rendering is achieved, and the eye strain is evaluated and minimized on the basis of the optical flow.

Claims

1. An image display method for displaying an image while shifting it, comprising:

a process of reading in image data;

a process of reading in a shifting parameter specifying how the image is shifted;

a shifting parameter/image data adjustment process of reducing a viewpoint shifting deviation, which is a difference between an optical flow determined between display images of frames that are adjacent in time and the actual movement of pixels of the image, based on the read-in image data and shifting parameter, and adjusting at least one of the shifting parameter and the image data such that a shifting amount of the image between frames that are adjacent in time is increased;

a display image creation process of creating display images by processing the read-in image data and background image data in accordance with the adjusted shifting parameter or image data; and

a process of displaying the created display images on a display device.

2. The image display method according to claim 1, wherein the shifting parameter/image data adjustment process takes as an evaluation function a sum of the weighted viewpoint shifting deviation and the weighted negative of the shifting amount of the image, and adjusts the shifting parameter and the image data such that value of this evaluation function is minimized.

3. The image display method according to claim 2,

further comprising a weighting adjustment process of setting/adjusting the weights of the evaluation function;

wherein the weighting adjustment process is a process in which, while an image for adjustment testing is presented to a user, the spatial viewpoint is shifted by the spatial viewpoint setting/shifting process, and the user himself sets the weighting for the adjustment of the shifting parameter and the weighting for the adjustment of the image data, such that the viewpoint shifting deviation is small for the user and the image shifting amount is large for the user.

4. An image display device for displaying an image while shifting it, comprising:

an image input portion for reading in image data;

a shifting parameter input portion for reading in a shifting parameter specifying how the image is shifted;

a shifting parameter/image data adjustment processing portion for reducing a viewpoint shifting deviation, which is a difference between an optical flow determined between display images of frames that are adjacent in time and the actual movement of pixels of the image, based on the read-in image data and shifting parameter, and adjusting at least one of the shifting parameter and the image data such that a shifting amount of the image between frames that are adjacent in time is increased;

a display image creation processing portion for creating display images by processing the read-in image data and background image data in accordance with the adjusted shifting parameter or image data; and

a display portion for displaying the created display images on a display device. 5. A computer-readable recording medium storing a program for realizing an image display method for displaying an image while shifting it, the program comprising;

a processing step of reading in image data;

a processing step of reading in a shifting parameter specifying how the image is shifted;

a shifting parameter/image data adjustment processing step of reducing a viewpoint shifting deviation, which is a difference between an optical flow determined between display images of frames that are adjacent in time and the actual movement of pixels of the image, based on the read-in image data and shifting parameter, and adjusting at least one of the shifting parameter and the image data such that a shifting amount of the image between frames that are adjacent in time is increased;

a display image creation processing step of creating display images by processing the read-in image data and background image data in accordance with the adjusted shifting parameter or image data; and

a processing step of displaying the created display images on a display device.