公开(公告)号：US09826216B1

公开(公告)日：2017-11-21

申请号：US15274994

申请日：2016-09-23

申请人： Aryan Hazeghi ,  Carlo Dal Mutto ,  Giulio Marin ,  Francesco Peruch ,  Michele Stoppa ,  Abbas Rafii

发明人： Aryan Hazeghi ,  Carlo Dal Mutto ,  Giulio Marin ,  Francesco Peruch ,  Michele Stoppa ,  Abbas Rafii

IPC分类号： H04N13/02 ,  H04N5/225 ,  G02B27/30 ,  G02B27/42 ,  G02B27/48 ,  G02B26/08 ,  H04N13/00

CPC分类号： H04N13/239 ,  G01B11/00 ,  G01B11/25 ,  G02B26/0808 ,  G02B27/0075 ,  G02B27/30 ,  G02B27/42 ,  G02B27/4205 ,  G02B27/425 ,  G02B27/48 ,  G03B17/54 ,  G06K9/2036 ,  G06K2209/40 ,  G06T2207/10028 ,  G06T2207/10152 ,  G06T2207/20228 ,  H04N5/2256 ,  H04N13/271 ,  H04N2013/0081

摘要： A pattern projection system includes a coherent light source, a repositionable DOE disposed to receive coherent light from said coherent light source and disposed to output at least one pattern of projectable light onto a scene to be imaged by an (x,y) two-dimensional optical acquisition system. Coherent light speckle artifacts in the projected pattern are reduced by rapidly controllably repositioning the DOE or the entire pattern projection system. Different projectable patterns are selected from a set of M patterns that are related to each other by a translation and/or rotation operation in two-dimensional cosine space. A resultant (x,y,z) depth map has improved quality and robustness due to projection of the selected patterns. Three-dimensional (x,y,z) depth data obtained from two-dimensional imaged data including despeckling is higher quality data than if projected patterns without despeckling were used.

公开(公告)号：US09325973B1

公开(公告)日：2016-04-26

申请号：US14788795

申请日：2015-07-01

申请人： Aryan Hazeghi ,  Carlo Dal Mutto ,  Abbas Rafii ,  David Demirdjian

发明人： Aryan Hazeghi ,  Carlo Dal Mutto ,  Abbas Rafii ,  David Demirdjian

IPC分类号： H04N13/02 ,  G06K9/00

CPC分类号： H04N13/271 ,  G01B11/2513 ,  G01B11/2545 ,  G02B27/4227 ,  G02B27/4272 ,  G06K9/00335 ,  G06K9/00375 ,  G06K9/2036 ,  G06T7/521 ,  G06T2207/10028 ,  H04N5/332 ,  H04N13/239 ,  H04N13/254 ,  H04N13/296

摘要： Dynamic projection of at least first and second patterns contributes detectable disparity onto a scene that includes a target object. The scene is imaged with two-dimensional cameras whose acquired imagery includes disparity contributions whose presence enable a three-dimensional reconstruction depth map to be rapidly and accurately generated. In one embodiment coherent light is input to a first DOE within whose near range output is disposed a second DOE, whose far range output projects an image. Electronically varying effective optical distance between the two DOEs varies the pattern projected from the second DOE. A processor system and algorithms enable dynamic intelligent selection of projected patterns to more readily discern target object characteristics: shape, size, velocity. Patterns can implement spatio-temporal depth reconstruction, spatio-temporal depth reconstruction, and even single-camera spatio-temporal light coding reconstruction. Target objects may be scanned or may make gestures that are rapidly detected and recognized by the system and method.