公开(公告)号：EP3201877A4

公开(公告)日：2018-03-14

申请号：EP15847754

申请日：2015-09-29

申请人： FOTONATION CAYMAN LTD

发明人： CIUREA FLORIAN ,  LELESCU DAN ,  CHATTERJEE PRIYAM

IPC分类号： G06T7/80 ,  H04N5/247 ,  H04N17/00

CPC分类号： H04N17/002 ,  G06T5/006 ,  G06T7/80 ,  G06T2207/10012 ,  G06T2207/10052 ,  H04N5/247

摘要： Systems and methods for dynamically calibrating an array camera to accommodate variations in geometry that can occur throughout its operational life are disclosed. The dynamic calibration processes can include acquiring a set of images of a scene and identifying corresponding features within the images. Geometric calibration data can be used to rectify the images and determine residual vectors for the geometric calibration data at locations where corresponding features are observed. The residual vectors can then be used to determine updated geometric calibration data for the camera array. In several embodiments, the residual vectors are used to generate a residual vector calibration data field that updates the geometric calibration data. In many embodiments, the residual vectors are used to select a set of geometric calibration from amongst a number of different sets of geometric calibration data that is the best fit for the current geometry of the camera array.

公开(公告)号：EP3286914A1

公开(公告)日：2018-02-28

申请号：EP16783702

申请日：2016-04-19

申请人： FOTONATION CAYMAN LTD

发明人： VENKATARAMAN KARTIK ,  LELESCU DAN ,  DUPARRÉ JACQUES

IPC分类号： G03B13/10 ,  G03B13/30 ,  H04B10/11

CPC分类号： H04N13/0022 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/0136 ,  G02B2027/0138 ,  G02B2027/014 ,  G06T7/593 ,  G06T2207/20016 ,  H04N5/2226 ,  H04N5/2256 ,  H04N5/2258 ,  H04N5/247 ,  H04N5/332 ,  H04N13/0242 ,  H04N13/0271 ,  H04N2013/0081

摘要： Embodiments of the invention provide a camera array imaging architecture that computes depth maps for objects within a scene captured by the cameras, and use a near-field sub-array of cameras to compute depth to near-field objects and a far-field sub-array of cameras to compute depth to far-field objects. In particular, a baseline distance between cameras in the near-field subarray is less than a baseline distance between cameras in the far-field sub-array in order to increase the accuracy of the depth map. Some embodiments provide an illumination near-IR light source for use in computing depth maps.