Image processing apparatus, display device, and image processing method

• US 8,369,641 B2
• Filed: 01/22/2010
• Issued: 02/05/2013
• Est. Priority Date: 05/15/2009
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Yamazaki, Susumu
• Primary Examiner(s): Cunningham, Gregory F
• Application Number:
  US12/692,324
• Publication Number:
  US 20100290670A1
• Time in Patent Office: 1,110 Days
• Field of Search: 33/183, 33/203, 334/32, 348/369, 382/254, 463/33, 715/781
• US Class Current: 382/254
• CPC Class Codes: G06T 1/00 General purpose image data processing
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 23/80 Camera processing pipelines; Components thereof
• CPC Class Codes: H04N 23/81 for suppressing or minimising disturbance in the image signal generation
• CPC Class Codes: H04N 25/61 the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

According to one embodiment, an image processing apparatus includes an extracted coordinates setting module, an image generator, and an output module. The extracted coordinates setting module sets extracted coordinates in a captured image along a direction in which a viewpoint moves with respect to an object in the captured image. The image generator sequentially extracts partial areas from the captured image in which perspective deformation of the object has been corrected based on the extracted coordinates, and generates a plurality of partial area images from the partial areas. The partial areas are in a size corresponding to the viewing angle of the human eye calculated according to an angle of view of the captured image. The output module outputs a moving image including the partial area images as frames.

Claims

1. An image processing apparatus comprising:

an extracted coordinates setting module configured to set extracted coordinates in a captured image along a direction in which a viewpoint moves with respect to an object in the captured image;

an image generator configured to sequentially extract partial areas from the captured image in which perspective deformation of the object has been corrected based on the extracted coordinates, and generate a plurality of partial area images from the partial areas, the partial areas being in a size corresponding to a viewing angle of human eye calculated according to an angle of view of the captured image; and

an output module configured to output a moving image including the partial area images as frames.

2. The image processing apparatus of claim 1, further comprising a back projection plane setting module configured to set a back projection plane for back projection of the captured image based on a direction of an image capturing surface upon capturing the captured image, and set an angle of the back projection plane to be parallel to the image capturing surface, wherein

the image generator is configured to correct the perspective deformation based on the angle of the back projection plane set by the back projection plane setting module.

3. The image processing apparatus of claim 2, wherein the back projection plane setting module is configured to correct an angle of the image capturing surface based on a position of the extracted coordinates in the captured image, and set the angle of the back projection plane to be parallel to the image capturing surface after correction.

4. The image processing apparatus of claim 1, further comprising a face detector configured to detect a face of a person in the captured image, wherein

the extracted coordinates setting module is configured to set the extracted coordinates based on a position of the face detected by the face detector.

5. A display device comprising:

a receiver configured to receive a captured image and information on the captured image;

an extracted coordinates setting module configured to set extracted coordinates in a captured image along a direction in which a viewpoint moves with respect to an object in the captured image;

an image generator configured to sequentially extract partial areas from the captured image in which perspective deformation of the object has been corrected based on the extracted coordinates, and generate a plurality of partial area images from the partial areas, the partial areas being in a size corresponding to a viewing angle of human eye calculated according to an angle of view of the captured image;

an output module configured to output a moving image including the partial area images as frames; and

a display module configured to display the moving image.

6. The display device of claim 5, wherein

the display module comprising a screen motion detector configured to motion of a screen on which the moving image is displayed, and

the extracted coordinates setting module is configured to set the extracted coordinates based on the motion of the screen detected by the screen motion detector.

7. An image processing method applied to an image processing apparatus comprising:

an extracted coordinates setting module setting extracted coordinates in a captured image along a direction in which a viewpoint moves with respect to an object in the captured image;

an image generator sequentially extracting partial areas from the captured image in which perspective deformation of the object has been corrected based on the extracted coordinates, and generating a plurality of partial area images from the partial areas, the partial areas being in a size corresponding to a viewing angle of human eye calculated according to an angle of view of the captured image; and

an output module outputting a moving image including the partial area images as frames.