Canon Kabushiki Kaisha

Naoki Umemura

Takayuki Komine

Kai Igarashi

Hajime Sato

Katsuyuki Kobayashi

Yuichiro Yoshimura

Akihiro Matsushita

Takayuki Hashimoto

Ritsuo Machii

Takuto Kawahara

Hirokuni Takano

Kenji Maeda

Tsuguhide Sakata

Naoto Takahashi

Jiro Tateyama

Hirohide Tachikawa

Jun Oida

Shigeki Sakurai

Masato Sugawara

Haruhisa Kato

Shuzo Yamaguchi

A plurality of images obtained by image capturing by a plurality of cameras and camera parameters are obtained, whether or not an object of interest exists within a depth of field of each camera is determined based on the camera parameters, and processing relating to shape data representing a three-dimensional shape of the object of interest is performed based on an image of the camera for which it has been determined that the object of interest exists within the depth of field.

Information processing apparatus, information processing method, and storage medium

The information processing apparatus generates three-dimensional shape data representing a three-dimensional shape of a first object by using a plurality of images obtained by a plurality of imaging apparatuses capturing the first object. The information processing apparatus estimates a size of the first object by using the three-dimensional shape data. The information processing apparatus specifies a position of a second object that is captured by the plurality of imaging apparatuses based on results of a comparison between the estimated size of the first object and a predetermined reference value.

To make it possible to obtain a natural virtual viewpoint image in which a structure or the like existing within an image capturing scene is represented three-dimensionally so as to be the same as a real one while suppressing a network load at the time of transmission of multi-viewpoint image data. The generation device according to the present invention generates a virtual viewpoint image based on three-dimensional shape data corresponding to an object, three-dimensional shape data corresponding to a structure, background data corresponding to a background different at least from the object and the structure, and information indicating a virtual viewpoint.

Generation apparatus, system and method for generating virtual viewpoint image

An image processing apparatus includes data acquisition units configured to acquire data that is based on first image capturing from a plurality of directions, and on second image capturing from a plurality of directions, a modification unit configured to modify at least one of position information and time information about the data acquired by the second data acquisition unit in association with at least one of position information and time information about the data acquired by the first data acquisition unit, and a generation unit configured to generate a virtual viewpoint image that contains an image of an object captured in the first image capturing and an image of an object captured in the second image capturing, based on the data acquired by the first data acquisition unit, the data acquired by the second data acquisition unit, and the information modified by the modification unit.

Image processing apparatus, image processing method, and storage medium

A communication apparatus is provided that includes: a receiving unit that receives communication parameter for connecting to a first base station via a second base station; a connecting unit that connects to the first base station based on the received communication parameter; and an authentication unit that performs authenticated process with the first base station based on the received communication parameter.

Communication system, information processing device, connection device, and connection device designation method for designating connection device for communication device to connect to

A coordinate input apparatus includes a light projecting unit configured to project light parallelly to an effective coordinate input region, a reflection unit configured to retroreflect the light projected by the light projecting unit, and a light receiving unit configured to receive light from the light projecting unit or the reflection unit. The coordinate input apparatus includes a moving unit configured to move a set of the light projecting unit, light receiving unit, and reflection unit in a direction perpendicular to the effective coordinate input region in order to ensure a light amount with which a pointed position in the effective coordinate input region can be calculated based on variations of a light amount distribution obtained from the light receiving unit.

Coordinate input apparatus

A coordinate input apparatus includes a first housing and a second housing each of which incorporate at least two sensor units each including one of the light projecting unit and one of the light receiving unit. A pointed position to an effective coordinate input region is calculated based on variations of a light amount distribution obtained from the light receiving units of each of the first and second housings. In each of the first and second housings, the field range of a light receiving unit is almost parallel to the effective coordinate input region, the optical axis direction of the light receiving unit is a direction perpendicular to a line segment connecting the barycenters of at least two sensor units in a single housing, and the field range is set to be asymmetric to the optical axis direction.

A highly power-efficient switching power supply is realized. A switching power supply circuit of the present invention comprises: a pulse generation unit configured to generate a pulse for alternately opening and closing a first and a second switching elements; and a switching unit configured to input a voltage to the pulse generation unit in accordance with the detected power consumption level in the external load, wherein the pulse generation unit is configured so as to reduce the pulse width of the pulse that is generated if the voltage input from the switching unit is higher than a reference voltage, and to increase the pulse width of the pulse that is generated if the voltage input from the switching unit is lower than the reference voltage.

Switching power supply circuit

When connecting a wireless LAN terminal to a specific wireless access point, an inquiry is made to a server about the specific wireless access point, via the wireless access point which the wireless LAN terminal is connecting to, and then connection information for connecting to the specific wireless access point is automatically received, whereby wireless communication are established between the wireless LAN terminal and the specific wireless access point. Furthermore, in a case where wireless LAN terminals which are permitted to connect are registered into each wireless access point, when a wireless access point receives a connection request from a wireless LAN terminal that is not permitted to connect, an inquiry is made to another wireless access point regarding whether there is a wireless access point which that wireless LAN terminal is permitted to connect to. Then, if a wireless access point which that wireless LAN terminal is permitted to connect to is found as a result of the inquiry, then connection information for connecting to that wireless access point is notified to the wireless LAN terminal.

A communication system has a communication controller for multiplexing and transmitting a power supply voltage and an audio signal to be played back by a plurality of channels, and a plurality of communication adapters which start in response to reception of the multiplexed/transmitted power supply voltage, and play back the audio signal using a playback device. The communication controller includes an audio data modulation circuit configured to modulate audio data by shifting, based on a first modulation ratio, a modulation carrier clock for modulating the audio data and a data transmission rate for transmitting the audio data in order to set a command transmission frequency bandwidth, and a command data modulation circuit configured to modulate command data by shifting, based on a second modulation ratio, a modulation carrier clock for modulating the command data and a data transmission rate for transmitting the command data in the command transmission frequency bandwidth.

Communication system and control method therefor, program, and storage medium

An information processing apparatus selects power having a higher voltage value out of power supplied via a plurality of external apparatuses, or selects power supplied from an external apparatus via a transmission line or power supplied from a power supply, whichever has a higher voltage value, to use the selected power within the information processing apparatus.

Information processing apparatus and control method

A wireless communication device can be wirelessly connected uniquely to a specific single wireless communication access point among a plurality of these access points in a roaming environment. Wireless LAN terminals input a connection ID for identifying a specific access point among access points and transmit the entered connection ID to one access point that has been wirelessly connected. If a frequency channel for making a connection to a specific access point corresponding to the connection ID is designated by a notification, from the wirelessly connected one access point, indicating whether the connection ID is appropriate or not, then the wireless LAN terminals set this frequency channel and establish a wireless connection to the specific access point.

Growing community of inventors

Abiko, Japan

Naoki Umemura