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1. WO2020196257 - DISTANCE MEASUREMENT METHOD, DISTANCE MEASUREMENT DEVICE, AND PROGRAM

Publication Number WO/2020/196257
Publication Date 01.10.2020
International Application No. PCT/JP2020/012287
International Filing Date 19.03.2020
IPC
G01S 7/497 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
497Means for monitoring or calibrating
G01S 17/10 2020.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
10using transmission of interrupted, pulse-modulated waves
G01S 17/894 2020.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems, specially adapted for specific applications
89for mapping or imaging
8943D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
G01C 3/06 2006.01
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
3Measuring distances in line of sight; Optical rangefinders
02Details
06Use of electric means to obtain final indication
Applicants
  • パナソニックIPマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP]/[JP]
Inventors
  • 能勢 悠吾 NOSE, Yugo
  • 香山 信三 KOYAMA, Shinzo
  • 小田川 明弘 ODAGAWA, Akihiro
  • 春日 繁孝 KASUGA, Shigetaka
  • 薄田 学 USUDA, Manabu
Agents
  • 新居 広守 NII, Hiromori
  • 寺谷 英作 TERATANI, Eisaku
  • 道坂 伸一 MICHISAKA, Shinichi
Priority Data
2019-06196527.03.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) DISTANCE MEASUREMENT METHOD, DISTANCE MEASUREMENT DEVICE, AND PROGRAM
(FR) PROCÉDÉ DE MESURE DE DISTANCE, DISPOSITIF DE MESURE DE DISTANCE ET PROGRAMME
(JA) 測距方法、測距装置、及び、プログラム
Abstract
(EN)
This distance measurement method comprises: a step (step S300) for measuring the brightness of background light in an environment in which an object is illuminated by the background light; a step (step S310) for setting a distance measurement range on the basis of the brightness of the background light; a step (step S320) for setting, on the basis of the set distance measurement range, imaging conditions for an imaging unit including a plurality of pixels each having an avalanche photodiode (APD) and emission conditions for emitting light from a light source; and a step (step S330) for measuring the distance to the object by controlling the imaging unit and light source on the basis of the set imaging conditions and emission conditions.
(FR)
L'invention porte sur un procédé de mesure de distance comprenant : une étape (étape S300) consistant à mesurer la luminosité d'une lumière de fond dans un environnement dans lequel un objet est éclairé par la lumière de fond ; une étape (étape S310) consistant à définir une plage de mesure de distance sur la base de la luminosité de la lumière de fond ; une étape (étape S320) consistant à définir, sur la base de la plage de mesure de distance définie, des conditions d'imagerie pour une unité d'imagerie comprenant une pluralité de pixels possédant chacun une photodiode à avalanche (APD) et des conditions d'émission pour l'émission de lumière à partir d'une source de lumière ; et une étape (étape S330) consistant à mesurer la distance par rapport à l'objet par commande de l'unité d'imagerie et de la source de lumière sur la base des conditions d'imagerie et des conditions d'émission définies.
(JA)
本開示に係る測距方法は、物体に背景光が照射されている環境下において、当該背景光の照度を測光する工程(ステップS300)と、当該背景光の照度に基づいて測距レンジを設定する工程(ステップS310)と、設定した測距レンジに基づいて、それぞれがAPD(Avalanche Photo Diode)を有する複数の画素を含む撮像部の撮像条件、及び、光源から光を出射させる出射条件を設定する工程(ステップS320)と、設定した撮像条件及び出射条件に基づいて撮像部及び光源を制御することで、当該物体との距離の測定を行う工程(ステップS330)と、を含む。
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