Methods, systems, and apparatus for camera testing using virtual images

• US 9,445,086 B2
• Filed: 12/10/2014
• Issued: 09/13/2016
• Est. Priority Date: 12/10/2014
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Inventors: Shen, Shizhe
• Primary Examiner(s): Tran, Trang U
• Application Number:
  US14/566,634
• Publication Number:
  US 20160173868A1
• Time in Patent Office: 643 Days
• Field of Search: 348/187, 348/188, 348/181, 348/175, 348/48, 348/135, 348/139, 348/47
• US Class Current: 1/1
• CPC Class Codes: G03B 15/03 Combinations of cameras with lighting apparatus; Flash units
• CPC Class Codes: G06T 2207/10148 Varying focus
• CPC Class Codes: G06T 7/0002 Inspection of images, e.g. flaw detection
• CPC Class Codes: H04N 17/002 for television cameras
• CPC Class Codes: H04N 23/57 Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Abstract

A method at a system having a virtual image generation device includes: receiving an image capture device; generating, using the virtual image generation device, a plurality of test images in accordance with a test sequence, where each test image corresponds to a respective focal distance with respect to the image capture device; obtaining test data corresponding to respective captures of the test images by the image capture device; and providing the test data.

Claims

1. A method, comprising:

at a system having a virtual image generation device;

generating, using the virtual image generation device, a plurality of test images in accordance with a test sequence, wherein each test image corresponds to a respective focal distance with respect to an image capture device;

obtaining test data corresponding to respective captures of the test images by the image capture device;

determining, based on the test data, whether the image capture device satisfies one or more test criteria;

in accordance with a determination that the image capture device satisfies the test criteria, passing the image capture device; and

in accordance with a determination that the image capture device does not satisfy the test criteria, failing the image capture device.

2. The method of claim 1, wherein:

the image capture device is determined to satisfy the test criteria if the test data indicates that each of the respective captures of the test images by the image capture device have a sharpness level that exceeds a predefined threshold.

3. The method of claim 1, wherein the virtual image generation device comprises a light field device.

4. The method of claim 1, wherein the virtual image generation device comprises a microlens array.

5. A system, comprising:

a virtual image generation device;

one or more processors, and

memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for;

generating, using the virtual image generation device, a plurality of test images in accordance with a test sequence, wherein each test image corresponds to a respective focal distance with respect to the image capture device;

obtaining test data corresponding to respective captures of the test images by the image capture device;

determining, based on the test data, whether the image capture device satisfies one or more test criteria;

in accordance with a determination that the image capture device satisfies the test criteria, passing the image capture device; and

in accordance with a determination that the image capture device does not satisfy the test criteria, failing the image capture device.

6. A non-transitory computer readable storage medium, storing:

one or more programs for execution by one or more processors of a system with a virtual image generation device, the one or more programs including instructions for;

generating, using the virtual image generation device, a plurality of test images in accordance with a test sequence, wherein each test image corresponds to a respective focal distance with respect to the image capture device;

obtaining test data corresponding to respective captures of the test images by the image capture device;

determining, based on the test data, whether the image capture device satisfies one or more test criteria;

in accordance with a determination that the image capture device satisfies the test criteria, passing the image capture device; and

in accordance with a determination that the image capture device does not satisfy the test criteria, failing the image capture device.