Storing data retrieved from different sensors for generating a 3-D image

Patent metadata

Field	Value
Publication number	US-10349040-B2
Application number	US-201615761555-A
Country	US
Kind code	B2
Filing date	Sep 11, 2016
Priority date	Sep 21, 2015
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A method is provided for use in a stereoscopic image generating system comprising two cameras, a plurality of memory buffers, and at least one processor. The method comprises: identifying at least one common region of interest (ROI) at images obtained from the two cameras; generating a Look Up table (LUT), for holding displacement values of pixels that belong to the at least one common ROI; forwarding data associated with images obtained from the two cameras that relates to the at least one common ROI, to the plurality of memory buffers; processing output lines retrieved from the plurality of memory buffers and propagating data that relates to a YUV image and associated LUTs, wherein the propagating of the data is carried out at a rate associated with a respective memory buffer from which that data is retrieved; and generating a stereoscopic image based on the propagated data.

First claim

The invention claimed is:

1. A method for use in a stereoscopic image generating system comprising at least two image capturing sensors, a memory means comprising a plurality of memory buffers, and at least one processor, wherein the method comprises:
identifying at least one common region of interest (ROI) at images obtained from the at least two image capturing sensors;
generating at least one Look Up table (LUT), for holding displacement values of pixels that belong to the at least one common ROI;
forwarding data associated with images obtained from the at least two image capturing sensors that relates to the at least one common ROI, to the plurality of memory buffers;
processing output lines retrieved from the plurality of memory buffers and propagating data that relates to a YUV image and associated LUTs, wherein the propagating of the data is carried out at a rate associated with a respective memory buffer from which that data is retrieved; and
generating a stereoscopic image based on the propagated data.

2. The method of claim 1 , wherein each of at least two of the plurality of memory buffers has a different height and/or a different width from that of another one of the at least two memory buffers.

3. The method of claim 2 , wherein the data relating to the YUV image and the LUTs is propagated from one of the at least two memory buffers at a rate which is different from a rate at which said data is propagated from another of the at least two memory buffers.

4. The method of claim 1 , further including a step of compressing data comprised in at least one of said plurality of memory buffers.

5. The method of claim 4 , wherein data comprised in one of the at least two memory buffers is compressed at a compression which is different from a compression applied to compress data at another of the at least two memory buffers.

6. The method of claim 1 , further including a step of calculating an effective memory buffer height for said plurality of memory buffers.

7. The method of claim 1 , further including a step of calculating a vertical output rate for retrieving data from each of the plurality of memory buffers.

8. The method of claim 1 , wherein the data forwarded to at least one of the plurality of memory buffers, is at least partially identical to data forwarded to another one of the plurality of memory buffers.

9. The method of claim 1 , wherein at least one of the memory buffers from among said plurality of memory buffers comprises a plurality of buffer segments.

10. The method of claim 9 , wherein data propagated from one of said plurality of buffer segments, is propagated at a rate which is different from a rate at which data is propagated from at least one other of the plurality of segments.

Assignees

• Inuitive Ltd

Inventors

• Goldentouch Lev
• Vasserman Genadiy

Classifications

• H04N2013/0081

  Depth or disparity estimation from stereoscopic image signals · CPC title

• H04N13/239

  using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance (H04N13/243 takes precedence) · CPC title

• H04N13/271 Primary

  wherein the generated image signals comprise depth maps or disparity maps · CPC title

• H04N13/246

  Calibration of cameras · CPC title

• G06T2207/10012

  Stereo images · CPC title