公开(公告)号：US20220011436A1

公开(公告)日：2022-01-13

申请号：US17482365

申请日：2021-09-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigeru SAITOU ,  Shinzo KOYAMA ,  Motonori ISHII ,  Masato TAKEMOTO

IPC: G01S17/894 ,  G01S17/10 ,  G06T7/11

Abstract: A distance measurement device includes: an image capturer that captures N segmental images corresponding to N segmental distances into which a distance measurement range is divided; and a range image generator that generates a range image from the N segmental images. The range image generator determines: among segmental pixels included in the N segmental images, a segmental pixel having a maximum signal value from N segmental pixels at the same pixel position among pixel positions; a value indicating a segmental distance of the segmental pixel having the maximum signal value to be a distance value of the pixel position of the range image, when the maximum signal value is greater than or equal to a threshold; and a value indicating a value outside the distance measurement range to be the distance value of the pixel position of the range image, when the maximum signal value is less than the threshold.

公开(公告)号：US20210166410A1

公开(公告)日：2021-06-03

申请号：US17171907

申请日：2021-02-09

Applicant: Panasonic intellectual Property Management Co., Ltd.

Inventor： Shigeru SAITOU ,  Akihiro ODAGAWA ,  Shinzo Koyama ,  Masato Takemoto

IPC: G06T7/586 ,  G01S7/481 ,  G01S17/08

Abstract: A distance measurement device includes: a light source configured to emit visible illumination light; an imaging element configured to receive reflected light of the illumination light from an object; and a signal processing circuit configured to reduce the emission of the illumination light in a predetermined period, detect a timing when the reception of the reflected light at the imaging element is reduced due to the reduction of the illumination light, and measure a distance to the object on the basis of the detected timing.