3D video processing

• US 8,395,709 B2
• Filed: 03/04/2009
• Issued: 03/12/2013
• Est. Priority Date: 03/04/2009
• Status: Active Grant

• Current Assignee: Advanced Micro Devices, Inc., ATI Technologies ULC (Advanced Micro Devices, Inc.)
• Original Assignee: Advanced Micro Devices, Inc., ATI Technologies ULC (Advanced Micro Devices, Inc.)
• Inventors: Hong, Sunkwang, Hulyalkar, Samir N.
• Primary Examiner(s): Chang, Jungwon
• Application Number:
  US12/397,448
• Publication Number:
  US 20100225741A1
• Time in Patent Office: 1,469 Days
• Field of Search: 348/44, 348/699, 348/700, 348/208.4, 348/43, 348/452, 375/240.12, 375/240.01, 386/124, 382/154
• US Class Current: 348/699
• CPC Class Codes: G06T 19/20 Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• CPC Class Codes: G06T 2207/10021 Stereoscopic video; Stereoscopic image sequence
• CPC Class Codes: H04N 13/00 Stereoscopic video systems; Multi-view video systems; Details thereof
• CPC Class Codes: H04N 13/128 Adjusting depth or disparity
• CPC Class Codes: H04N 13/139 Format conversion, e.g. of frame-rate or size
• CPC Class Codes: H04N 13/144 for flicker reduction
• CPC Class Codes: H04N 2013/0074 Stereoscopic image analysis
• CPC Class Codes: H04N 2013/0085 Motion estimation from stereoscopic image signals
• CPC Class Codes: H04N 2213/002 Eyestrain reduction by processing stereoscopic signals or controlling stereoscopic devices

Abstract

A method and apparatus for reducing motion judder in a 3D input source are disclosed. The 3D input source is separated into left and right images. Motion vectors for the left and right images are calculated. Frame rate conversion is performed on the left and right images, to produce motion compensated left and right images. The left and right images and the motion compensated left and right images are reordered for display. Alternatively, the motion estimation and motion compensation can be performed on the 3D input source, and the input image and the motion compensated image can then be separated into respective left and right images. The method and apparatus can be adapted to perform 2D to 3D conversion by extracting a 2D input source into left and right 3D images and performing motion estimation and motion compensation.

Claims

1. A method for reducing motion judder in a 3D input source, comprising:

separating the 3D input source into left and right images;

calculating a motion vector for each of the left image and the right image;

performing frame rate conversion on the left image and the right image, using the respective calculated motion vectors, to produce motion compensated left and right images; and

reordering the left and right images and the motion compensated left and right images for display.

2. A method for reducing motion judder in a 3D input source, comprising:

calculating a motion vector for the 3D input source;

performing frame rate conversion on the 3D input source, using the calculated motion vector, to produce a motion compensated 3D image;

separating the 3D input source into respective left and right input images and separating the motion compensated 3D image into respective motion compensated left and right images; and

reordering the left and right input images and the motion compensated left and right images for display.

3. An apparatus configured to reduce motion judder in a 3D input source, comprising:

a 3D image separating device, configured to separate a 3D image into a left image and a right image;

a motion vector calculating device, configured to calculate a motion vector for the left image and the right image;

a frame rate conversion device, configured to produce a motion compensated left image and right image based on an input left image and right image and the respective calculated motion vectors; and

an image reordering device, configured to reorder separated input left and right images and separated motion compensated left and right images for display.

4. The apparatus according to claim 3, wherein the motion vector calculating device is further configured to operate on a 3D image and to calculate a motion vector for the 3D image.

5. The apparatus according to claim 4, wherein the frame rate conversion device is further configured to operate on the 3D image.