Reduced hardware implementation for a two-picture depth map algorithm
AssigneesSony Corporation, Sony Electronics Inc.
InventorsEarl Quong Wong, Pingshan Li, Soroj Triteyaprasert, Hidenori Kushida, Makibi Nakamura, Yoshihiro Murakami
Life of this patent
Estimating the term…
Abstract
An imaging system generates a picture depth map from a pair of reduced resolution images. The system captures two full resolution images, receives image reduction image information and creates two reduced resolution images. The system computes a blur difference between the two reduced resolution images at different image locations. The system calculates the depth map based on the blur difference between the two reduced resolution images at different image locations.
Claims20
A computerized method comprising:
- generating a first and second reduced resolution image using reduction information for the first and second reduced resolution image, the first and second reduced resolution image having a pixel size;
- computing a blur difference in the first and second reduced resolution images, wherein a blur radius of the blur difference is larger than the pixel size;
- and
- calculating a depth map based on the blur difference of the first and second reduced resolution images.
A non-transitory machine readable medium having executable instructions to cause a processor to perform a method comprising:
- generating a first and second reduced resolution image using reduction information for the first and second reduced resolution image, the first and second reduced resolution image having a pixel size;
- computing a blur difference in the first and second reduced resolution images, wherein a blur radius of the blur difference is larger than the pixel size;
- and
- calculating a depth map based on the blur difference of the first and second reduced resolution images.
An apparatus comprising:
- means for generating a first and second reduced resolution image using reduction information for the first and second reduced resolution image, the first and second reduced resolution image having a pixel size;
- means for computing a blur difference in the first and second reduced resolution images, wherein a blur radius of the blur difference is larger than the pixel size;
- and
- means for calculating a depth map based on the blur difference of the first and second reduced resolution images.
A system comprising:
- a processor;
- a memory coupled to the processor though a bus;
- and
- a process executed from the memory by the processor to cause the processor to generate a first and second reduced resolution image using reduction information for the first and second reduced resolution image, the first and second reduced resolution image having a pixel size, compute a blur difference in the first and the second reduced resolution images, wherein a blur radius of the blur difference is larger than the pixel size, and to calculate a depth map based on the blur difference of the first and second reduced resolution images.
Dependencies are inferred from the claim text.