Image-processing system and image-processing method in which a size of a viewing angle and a position of a viewing point are changed for zooming

Patent metadata

Field	Value
Publication number	US-9491357-B2
Application number	US-201414522282-A
Country	US
Kind code	B2
Filing date	Oct 23, 2014
Priority date	Dec 26, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

An image-processing system includes a receiver which receives an input value defining an output range, a generator which generates a three-dimensional model having a target image attached to a three-dimensional conformation, a decision part which decides a position of a viewing point and a viewing angle in accordance with the input value, and a projector which projects the three-dimensional model from the viewing point, wherein the decision part changes a range of a target image inside a viewing field by changing the viewing angle preferentially when the input value is in a first range, and changes the range of the target image inside the viewing field by changing the viewing point preferentially when the input value is in a second range which is a wider-angle side than that of the first range.

First claim

What is claimed is:

1. An apparatus, comprising:
a memory for storing program code; and
a processor for generating an image using a stored image, the processor, according to the program code, executing:
a process to display the image as a three-dimensional conformation; and
a process to zoom the image by:
changing a size of a viewing angle of the image, the viewing angle being an angular width between a position of a viewing point and both edges of the image when the viewing point sees the image from the position of the viewing point; and
changing the position of the viewing point of the image, wherein:
an angle of field is an angular width which is a range of the image having the viewing field,
the processor makes the viewing angle different from the angle of field within a magnification range, and
the processor operates such that the position of the viewing point is on an outer edge of the three-dimensional conformation while changing the size of the viewing angle within a first magnification range, and the size of the viewing angle is constant while changing the position of the viewing point away from the outer edge of the three-dimensional conformation within a second magnification range which is larger than the first magnification range.

2. The apparatus according to claim 1 , wherein the processor generates the image as an image of a three dimensional model to which a captured image is attached to be the three-dimensional conformation.

3. The apparatus according to claim 1 , wherein the processor changes the size of the viewing angle monotonously within an entirety of the magnification range.

4. The apparatus according to claim 1 , wherein the processor generates the image as an image of a sphere within a range having a magnification smaller than the magnification range.

5. The apparatus according to claim 1 , wherein the processor executes:
the changing of the position of the viewing point of the image while zooming the image operates such that the position of viewing is moved along a line which includes a center of the image and a current viewing point.

6. The apparatus according to claim 1 , wherein the viewing point of the image is a simulated viewing point of the image.

7. The apparatus according to claim 1 , wherein:
the processor makes the position of the viewing point to be in mathematical correspondence to the viewing angle within the magnification range, while zooming.

8. A process to zoom a digitally stored image, comprising:
changing, while zooming, a size of a viewing angle of the image, the viewing angle being an angular width between a position of a viewing point and both edges of the image when the viewing point sees the image from the position of the viewing point, within a first magnification range in which the position of the viewing point is on an outer edge of a three-dimensional conformation;
changing, while zooming, the position of the viewing point of the image away from the outer edge of the three-dimensional conformation while keeping the viewing angle constant, within a second magnification range which is larger than the first magnification range; and
displaying the image as the three-dimensional conformation, wherein:
an angle of field is an angular width which is a range of the image having the viewing field, and
the viewing angle is different from the angle of field within a magnification range.

9. The process according to claim 8 , wherein the changing of the viewing angle changes the size of the viewing angle monotonously within an entirety of the magnification range.

10. The process according to claim 8 , wherein the displaying of the image displays an image of a sphere within a range having a magnification smaller than the magnification range.

11. The process according to claim 8 , wherein the changing of the position of the viewing point comprises:
changing the position of the viewing point such that the position of viewing is moved along a line which includes a center of the image and a current viewing point.

12. The process according to claim 8 , wherein the viewing point of the image is a simulated viewing point of the image.

Assignees

• Ricoh Co Ltd
• Ricoh Co Ltd

Inventors

• Shohara Makoto
• Imae Nozomi
• Harada Toru
• Yamamoto Hideaki
• Ueda Yasuo
• Ito Yoichi
• Sawaguchi Satoshi
• Takenaka Hirokazu
• Masuda Kensuke
• Satoh Hiroyuki

Classifications

• H04N23/698 Primary

  for achieving an enlarged field of view, e.g. panoramic image capture · CPC title

• G06T15/205 Primary

  Image-based rendering · CPC title

• H04N5/23238 Primary

  Electricity · mapped topic

• G06T17/00

  Three-dimensional [3D] modelling for computer graphics · CPC title