公开(公告)号：WO2006088722A2

公开(公告)日：2006-08-24

申请号：PCT/US2006/004580

申请日：2006-02-08

Applicant: CANESTA, INC. ,  GOKTURK, Salih, Burak ,  RAFII, Abbas

Inventor： GOKTURK, Salih, Burak ,  RAFII, Abbas

IPC: H04N5/228

CPC classification number: G01S17/89 ,  G01S7/4865 ,  G01S7/4868 ,  G01S7/487 ,  G01S17/10 ,  H04N5/2355

Abstract: Dynamic range of photodetector sensors useable in a TOF system is enhanced by capturing images of an object using multiple exposure time settings. Longer exposure settings more appropriately capture non-reflective and/or distant objects, while shorter exposure settings more appropriately capture reflective and/or closer objects. During parallel mode operation, detection signal readouts are taken from each photodetector at different time intervals within an overall exposure time. In sequential mode operation, detection signal readouts are taken and stored for each photodetector at the end of a first exposure time interval and the photodetectors are reset. After a second, different exposure time interval readouts are taken and stored, and the photodetectors reset, etc. In these modes one of the time exposure intervals will be relatively optimum for enhanced dynamic range operation. Once images with multiple exposure settings are obtained, best effort brightness and range images can be obtained, and motion artifacts can be reduced.

Abstract translation: 在TOF系统中可用的光电检测器传感器的动态范围通过使用多个曝光时间设置捕获物体的图像来增强。 较长的曝光设置更适当地捕获非反射和/或远距离的物体，而较短的曝光设置更适当地捕获反射和/或更近的物体。 在并行模式操作期间，在整个曝光时间内以不同的时间间隔从每个光电检测器获取检测信号读出。 在顺序模式操作中，在第一曝光时间间隔结束时对每个光电检测器采集和存储检测信号读出，并且光电检测器被复位。 一秒钟后，拍摄和存储不同的曝光时间间隔读数，并且光电探测器复位等。在这些模式中，对于增强的动态范围操作，时间曝光间隔之一将是相对最佳的。 一旦获得具有多个曝光设置的图像，就可以获得尽力而为的亮度和范围图像，并且可以减少运动伪影。

公开(公告)号：WO2003071410A3

公开(公告)日：2003-08-28

申请号：PCT/US2003/004979

申请日：2003-02-18

Applicant: CANESTA, INC.

Inventor： GOKTURK, Salih, Burak ,  TOMASI, Carlo ,  SÜRÜCÜ, Fahri ,  RAFII, Abbas

IPC: G06F3/00

Abstract: Three-dimensional position information is used to identify the gesture created by a body part of interest. At one or more instances of an interval, the posture of a body part is recognized, based on the shape of the body part and its position and orientation. The posture of the body part over each of the one or more instances in the interval are recognized as a combined gesture. The gesture is classified for determining an input into a related electronic device.