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AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsSatoshi Sato, Takeo Azuma, Nobuhiko Wakai, Kohsuke Yoshioka, Noritaka Shimizu, Yoshinao Kawai, Takaaki Amada, Yoko Kawai, Takeshi Murai, Hiroki Takeuchi
Estimating the term…
A depth acquisition device includes a memory and a processor. The processor performs: acquiring timing information indicating a timing at which a light source irradiates a subject with infrared light; acquiring, from the memory, an infrared light image generated by imaging a scene including the subject with the infrared light according to the timing indicated by the timing information; acquiring, from the memory, a visible light image generated by imaging a substantially same scene as the scene of the infrared light image, with visible light from a substantially same viewpoint as a viewpoint of imaging the infrared light image at a substantially same time as a time of imaging the infrared light image; detecting a flare region from the infrared light image; and estimating a depth of the flare region based on the infrared light image, the visible light image, and the flare region.
A depth acquisition device, comprising:
A depth acquisition method, comprising:
Dependencies are inferred from the claim text.
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Depth or shape recovery: from multiple images
Details: use of electric means to obtain final indication
Indirect determination of position data: active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other…
Lidar systems specially adapted for specific applications: for mapping or imaging
About 12 years 10 months of term left · ends 9 Sep 2039 (estimated)
The present disclosure relates to depth acquisition devices and the like which acquire a depth of image.
Conventionally, a distance measurer for measuring a distance to a subject of image has been proposed (for example, refer to Japanese Unexamined Patent Application Publication No. 2011-64498 (PTL 1)). This distance measurer includes a light source and an imager. The light source irradiates the subject with light. The imager images the light reflected on the subject. Then, the distance measurer converts each pixel value in the image generated by the imaging into a distance to the subject, thereby measuring the distance to the subject. In other words, the distance measurer acquires a depth of the image generated by the imager.
However, the distance measurer in PTL 1 has a problem of failing to accurately acquire the depth.
These and other objects, advantages and features of the disclosure will become apparent from the following description thereof taken in conjunction with the accompanying drawings that illustrate a specific embodiment of the present disclosure.
FIG. 1 is a block diagram illustrating a hardware structure of a depth acquisition device according to Embodiment;
FIG. 2 is a schematic diagram illustrating a pixel array in a solid-state imaging element according to Embodiment;
(Findings on Which the Present Disclosure is Based)
The present inventors have found that the following problems may occur in connection to the distance measurer of PTL 1 described in the “BACKGROUND ART” section.
The distance measurer of PTL 1 irradiates light from a light source to a subject, and acquires an image by imaging the subject irradiated with light to measure a depth of the image. In the measurement of the depth, TOF (Time Of Flight) is used. In such a distance measurer, imaging at mutually different imaging conditions is performed to improve distance measurement accuracy. That is, the distance measurer performs imaging according to a predetermined imaging condition, and depending on that imaging result, sets an imaging condition different from the predetermined imaging condition. Then, the distance measurer performs imaging again according to the set imaging condition.