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US 2026/0017801 A1Published application
Data processing device, distance image capturing device, and edge detection method
AssigneeToppan Holdings Inc.
InventorsKai HIROKAWA, Kunihiro HATAKEYAMA
Life of this patent
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Abstract
A data processing device includes an acquisition unit configured to acquire a distance image based on the distance to an object in a space to be measured, and an edge detection unit configured to perform edge detection on respective pixels of the distance image based on the ratio between distance values of the respective pixels or some pixels among a plurality of pixels around the respective pixels.
Claims8
A data processing device comprising:
- an acquisition unit configured to acquire a distance image based on a distance to an object in a space to be measured;
- and
- an edge detection unit configured to perform edge detection on each pixel of the distance image based on a ratio of distance values of the pixel or of any plurality of pixels around the pixel.
A distance image capturing device comprising:
- a light source unit configured to emit a light pulse to a space to be measured;
- a light receiving unit that includes a pixel including a photoelectric conversion element for generating electric charges according to incident light and a plurality of charge accumulation units accumulating the electric charges and a pixel drive circuit which distributes and accumulates the electric charges in each of the charge accumulation units in the pixel at a predetermined timing synchronized with emission of the light pulse;
- a distance calculation unit configured to acquire a distance image by calculating a distance to an object in the space based on an amount of the electric charges accumulated in each of the charge accumulation units;
- and
- an edge detection unit configured to perform edge detection on respective pixels of the distance image based on a ratio between distance values of the respective pixels or some of a plurality of pixels around the respective pixels.
2 more elements
An edge detection method of a distance image in a data processing device, the method comprising:
- a step of acquiring, by an acquisition unit, the distance image based on a distance to an object in a space to be measured;
- and
- a step of performing, by an edge detection unit, edge detection on respective pixels of the distance image based on a ratio between distance values of the respective pixels or some of a plurality of pixels around the respective pixels.
Dependencies are inferred from the claim text.