Photographing apparatus and method

Patent metadata

Field	Value
Publication number	US-9401036-B2
Application number	US-201414547531-A
Country	US
Kind code	B2
Filing date	Nov 19, 2014
Priority date	Jun 12, 2014
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

The present disclosure provides an image obtaining method, a photographing apparatus and a storage medium. The image obtaining method includes the following operations: obtaining a plurality of images of a target scene at more than one focal lengths; processing a first image to obtain a reference image, wherein in the plurality of images, an image with a predetermined viewing angle is a standard image, and remaining images are first images, and image of the target scene in the reference image has same size as image of the target scene in the standard image; and substituting a clear area in the reference image for a corresponding area in the standard image.

First claim

The invention claimed is:

1. An image obtaining method, comprising:
obtaining a plurality of images of a target scene at more than one focal lengths;
processing a first image to obtain a reference image, wherein in the plurality of images, an image with a predetermined viewing angle is a standard image, and remaining images are first images, and image of the target scene in the reference image has same size as image of the target scene in the standard image; and
substituting a clear area in the reference image for a corresponding area in the standard image.

2. The method of claim 1 , wherein the obtaining a plurality of images of a target scene at more than one focal lengths comprises:
obtaining a photographing signal; and
obtaining the plurality of images of the target scene at more than one focal lengths according to preset focal lengths.

3. The method of claim 2 , wherein the processing a first image to obtain a reference image comprises:
enlarging coordinate values of all pixel points in the first image according to a preset parameter to obtain the reference image, wherein central point of the first image is an origin of a first coordinate system, and the image of the target scene in the reference image has same size as the image of the target scene in the standard image.

4. The method of claim 3 , wherein the substituting a clear area in the reference image for a corresponding area in the standard image comprises:
obtaining pixel values and coordinate values of first pixel points in clear area of the reference image, wherein the first pixel points are all pixel points in the clear area;
obtaining pixel values and coordinate values of second pixel points in the standard image, wherein central point of the standard image is an origin of a second coordinate system, wherein the second pixel points are all pixel points in the standard image; and
when the coordinate values of the first pixel points are the same as the coordinate values of the second pixel points, substituting the pixel values of the first pixel points for the pixel values of the second pixel points.

5. The method of claim 1 , wherein the obtaining a plurality of images of a target scene at more than one focal lengths comprises:
obtaining a photographing signal;
obtaining a first focal length range of the target scene; and
obtaining the plurality of images of the target scene at more than one focal lengths within the first focal length range according to preset focal lengths.

6. The method of claim 1 , wherein the obtaining a plurality of images of a target scene at more than one focal lengths comprises:
obtaining a photographing signal;
obtaining at least two focusing lengths of the target scene; and
obtaining the plurality of images of the target scene at more than one focusing lengths.

7. The method of claim 6 , wherein the processing a first image to obtain a reference image comprises:
obtaining an adjusting parameter according to the first image and the standard image; and
enlarging coordinate values of all pixel points in the first image according to the adjusting parameter to obtain the reference image, wherein central point of the first image is an origin of a first coordinate system, and the image of the target scene in the reference image has same size as the image in the standard image.

8. The method of claim 7 , wherein the obtaining the adjusting parameter according to the first image and the standard image further comprise:
dividing the first image into areas, wherein one vertex of each area is set in the origin of the first coordinate system;
obtaining a first distance between central points of two first pure color areas in different areas in the first image;
dividing the standard image into areas in same division manner as in the first image, wherein central point of the standard image is an origin of a second coordinate system, and one vertex of each area is set in the origin of the second coordinate system;
obtaining a second distance between central points of two corresponding second pure color areas in different areas in the standard image; and
obtaining the adjusting parameter according to the first distance and the second distance.

9. The method of claim 8 , wherein the substituting a clear area in the reference image for a corresponding area in the standard image comprises:
obtaining pixel values and coordinate values of first pixel points in the clear area of the reference image, wherein the first pixel points are all pixel points in the clear area;
obtaining pixel values and coordinate values of second pixel points in the standard image, wherein the second pixel points are all pixel points in the standard image; and
when the coordinate values of the first pixel points are the same as the coordinate values of the second pixel points, substituting the pixel values of the first pixel points for the pixel values of the second pixel points.

10. The method of claim 1 , wherein the image with the predetermined viewing angle is an image with a minimum viewing angle.

11. A photographing apparatus, comprising:
a lens and photosensitive and focusing components, configured to obtain a plurality of images of a target scene at more than one focal lengths;
a storage component, configured to store the plurality of images and computer-readable program codes; and
an image processing component, configured to perform the computer-readable program codes in the storage component to implement:
processing a first image to obtain a reference image, wherein in the plurality of images, an image with a predetermined viewing angle is a standard image, and remaining images are first images, and image of the target scene in the reference image has same size as image of the target scene in the standard image; and
substituting a clear area in the reference image for a corresponding area in the standard image.

12. The photographing apparatus of claim 11 , wherein the obtaining a plurality of images of a target scene at more than one focal lengths specifically comprises:
obtaining a photographing signal; and
obtaining the plurality of images of the target scene at more than one focal lengths according to preset focal lengths.

13. The photographing apparatus of claim 12 , wherein the processing a first image to obtain a reference image comprises:
enlarging coordinate values of all pixel points in the first image according to a preset parameter to obtain the reference image, wherein central point of the first image is an origin of a first coordinate system, and the image of the target scene in the reference image has same size as the image of the target scene in the standard image.

14. The photographing apparatus of claim 13 , wherein the substituting a clear area in the reference image for a corresponding area in the standard image comprises:
obtaining pixel values and coordinate values of first pixel points in clear area of the reference image, wherein the first pixel points are all pixel points in the clear area;
obtaining pixel values and coordinate values of second pixel points in the standard image, wherein central point of the standard image is an origin of a second coordinate system and the second pixel points are all pixel points in the standard image; and
when the coordinate values of the first pixel points are the same as the coordinate values of the second pixel points, substituting the pixel values of the first pixel points for the pixel values of the second pixel points.

15. The photographing apparatus of claim 11 , wherein the obtaining a plurality of images of a target scene at more than one foc

Assignees

• Hisense Electric Co Ltd
• Hisense Usa Corp
• Hisense Int Co Ltd

Inventors

• Sun Xuebin
• Liu Jin
• Li Benyou

Classifications

• G06T5/50 Primary

  using two or more images, e.g. averaging or subtraction · CPC title

• G06T2207/20221

  Image fusion; Image merging · CPC title

• G06T2207/10004

  Still image; Photographic image · CPC title

• G06T11/60 Primary

  Creating or editing images; Combining images with text · CPC title

• G06T2207/10148

  Varying focus · CPC title