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1. WO2022004441 - RANGING DEVICE AND RANGING METHOD

Publication Number WO/2022/004441
Publication Date 06.01.2022
International Application No. PCT/JP2021/023287
International Filing Date 21.06.2021
IPC
G01S 17/36 2006.1
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
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
36with phase comparison between the received signal and the contemporaneously transmitted signal
G01S 17/894 2020.1
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
CPC
G01S 17/36
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
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
36with phase comparison between the received signal and the contemporaneously transmitted signal
G01S 17/894
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
Applicants
  • ソニーグループ株式会社 SONY GROUP CORPORATION [JP]/[JP]
Inventors
  • 今野 洋佑 KONNO, Yosuke
Agents
  • 特許業務法人酒井国際特許事務所 SAKAI INTERNATIONAL PATENT OFFICE
Priority Data
2020-11500302.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) RANGING DEVICE AND RANGING METHOD
(FR) DISPOSITIF DE TÉLÉMÉTRIE ET PROCÉDÉ DE TÉLÉMÉTRIE
(JA) 測距装置および測距方法
Abstract
(EN) A ranging device (10) includes a light source unit (11), an imaging unit (12), and a signal processing unit (14). The light source unit (11) projects irradiation light of different wavelengths toward a ranging target. The imaging unit (12) captures a luminance image for each wavelength by receiving the reflected light of the irradiation light from the ranging target. The signal processing unit (14) calculates the distance to the ranging target on the basis of luminance images. The light source unit (11) projects the irradiation light at a prescribed irradiation timing. The imaging unit (12): receives light at a plurality of light receiving timings that are shifted by a prescribed phase on the basis of the irradiation timings of the irradiation light; and captures a luminance image at each light receiving timing.
(FR) L'invention concerne un dispositif de télémétrie (10) comprenant une unité source de lumière (11), une unité d'imagerie (12) et une unité de traitement de signal (14). L'unité de source de lumière (11) projette une lumière d'exposition de différentes longueurs d'onde vers une cible de télémétrie. L'unité d'imagerie (12) capture une image de luminance pour chaque longueur d'onde par la réception de la lumière réfléchie de la lumière d'exposition provenant de la cible de télémétrie. L'unité de traitement de signal (14) calcule la distance jusqu'à la cible de télémétrie en fonction d'images de luminance. L'unité de source de lumière (11) projette la lumière d'exposition à un moment d'exposition prescrit. L'unité d'imagerie (12) : reçoit de la lumière à une pluralité de moments de réception de lumière qui sont décalés selon une phase prescrite en fonction des moments d'exposition de la lumière d'exposition; et capture une image de luminance à chaque moment de réception de lumière.
(JA) 測距装置(10)は、光源部(11)と、撮像部(12)と、信号処理部(14)とを有する。光源部(11)は、測距対象物に向けて波長が異なる照射光を照射する。撮像部(12)は、測距対象物からの照射光の反射光を受光して波長毎の輝度画像を撮像する。信号処理部(14)は、輝度画像に基づいて測距対象物までの距離を算出する。光源部(11)は、照射光を所定の照射タイミングで照射する。撮像部(12)は、照射光の照射タイミングを基準に、所定位相ずらした複数の受光タイミングで受光し、受光タイミング毎の輝度画像を撮像する。
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