CPC Class H04N

An exemplary imaging device includes an optical sensor having an optical axis, a lens positioned to focus light from a scene onto the optical sensor, a matrix of variable-phase optical elements that are dimensioned to introduce at least two different phase delays into a wavefront of a light signal received from the scene through the lens, a housing that secures the matrix of variable-phase optical elements between the optical sensor and the lens, and a processing subsystem programmed to determine a phase difference associated with the light signal based on the at least two different phase delays. Related systems and methods are also provided.

An electronic device tracks its motion in an environment while building a three-dimensional visual representation of the environment that is used to correct drift in the tracked motion. A motion tracking module estimates poses of the electronic device based on feature descriptors corresponding to the visual appearance of spatial features of objects in the environment. A mapping module builds a three-dimensional visual representation of the environment based on a stored plurality of maps, and feature descriptors and estimated device poses received from the motion tracking module. The mapping module provides the three-dimensional visual representation of the environment to a localization module, which identifies correspondences between stored and observed feature descriptors. The localization module performs a loop closure by minimizing the discrepancies between matching feature descriptors to compute a localized pose. The localized pose corrects drift in the estimated pose generated by the motion tracking module.

A device for extracting depth information according to one embodiment of the present invention comprises: a light outputting unit for outputting IR (InfraRed) light; a light inputting unit for inputting light reflected from an object after outputting from the light outputting unit; a light adjusting unit for adjusting the angle of the light so as to radiate the light into a first area including the object, and then for adjusting the angle of the light so as to radiate the light into a second area; and a controlling unit for estimating the motion of the object by using at least one of the lights between the light inputted to the first area and the light inputted to the second area.

A structure includes a support and a first near infrared transmitting filter and a second near infrared transmitting filter that are provided at different positions on the support. A minimum value of a transmittance to light having a longer wavelength than longest wavelengths at which transmittances of the first near infrared transmitting filter and the second near infrared transmitting filter in a wavelength range of 600 to 1300 nm are 50% is 50% or higher, and a difference between a wavelength λ2 of light having the longest wavelength at which the transmittance of the second near infrared transmitting filter is 50% and a wavelength λ1 of light having the longest wavelength at which the transmittance of the first near infrared transmitting filter is 50% is 30 nm or longer.

A focusing control device includes: a sensor that has a focus detection area in which a plurality of first signal detection sections which receives one of a pair of luminous fluxes passing through different portions arranged in one direction of a pupil region of an imaging optical system including a focus lens and detects signals corresponding to light reception amounts and a plurality of second signal detection sections which receives other one of the pair of luminous fluxes and detects signals corresponding to light reception amounts are formed; a correlation calculating unit as defined herein; a search range determining unit as defined herein; and a focusing controller as defined herein.