公开(公告)号：US10545239B2

公开(公告)日：2020-01-28

申请号：US15882493

申请日：2018-01-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masaya Kishimoto ,  Haruka Takano

IPC: G01S17/10 ,  G01S17/89 ,  H04N5/355 ,  H04N5/372 ,  H04N5/374

Abstract: A distance-measuring imaging device includes: a drive controller that outputs a light emission signal and an exposure signal; a light source; a solid-state imager that performs exposure to reflected light; and a TOF calculator that calculates a distance to an object using an imaging signal. The drive controller: cyclically outputs a first exposure signal group in which, before an exposure period of one exposure signal ends, an exposure period of at least one other exposure signal starts; and outputs a second exposure signal group having a dead zone period during which all exposure signals are in a non-exposure period. The TOF calculator calculates a first distance value using a first imaging signal obtained according to the first exposure signal group, calculates a second distance value using a second imaging signal obtained according to the second exposure signal group, and calculates the distance based on the first and second distance values.

公开(公告)号：US10686994B2

公开(公告)日：2020-06-16

申请号：US15946270

申请日：2018-04-05

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Masaya Kishimoto ,  Haruka Takano ,  Junichi Matsuo

IPC: H04N5/235 ,  G01C3/06 ,  G01S17/89 ,  G01S17/10 ,  G01S7/4865 ,  G06T7/514 ,  H04N5/355

Abstract: An imaging device includes: a light source that applies light at a timing according to a light emission control signal; a light receiver that performs exposure to reflected light from an object at different timings according to an exposure control signal, and outputs exposure signals generated as a result of the exposure; a calculator that calculates a distance to the object; and a controller that outputs the light emission control signal and the exposure control signal for any of: modulating a length of a light emission period and an exposure period by increasing or decreasing the number of pulses of each of the light emission control signal and the exposure control signal; and modulating a repetition sequence of the light emission period and the exposure period while maintaining a phase relationship between the light emission control signal and the exposure control signal, randomly or in conformity with a specific rule.