A method and system of positioning a plurality of targets, wherein all targets to be positioned move within a spatial area, the method comprises: providing an infrared light source on each of the targets to be positioned; according to a preset sampling frequency, controlling the infrared light source on each of the targets to be positioned to be turned on and off by turns; according to the preset sampling frequency, gathering infrared gray scale images of the space where the targets to be positioned are located; and positioning one target to be positioned individually in each of the gathered infrared gray scale images. By the infrared light source positioning, ambient interference is highly avoided, and the accuracy of the positioning is improved. By controlling the infrared light sources to be turned on and off by turns, there is only one infrared light source being turned on in each of the gathered infrared gray scale images, by which the targets to be positioned are easily distinguished, and the image processing on the basis of greyscale can reduce the data volume to be transmitted and increase the processing speed to a large extent.

A method and system of positioning a plurality of targets, wherein all targets to be positioned move within a spatial area, the method comprises: providing an infrared light source on each of the targets to be positioned; according to a preset sampling frequency, controlling the infrared light source on each of the targets to be positioned to be turned on and off by turns; according to the preset sampling frequency, gathering infrared gray scale images of the space where the targets to be positioned are located; and positioning one target to be positioned individually in each of the gathered infrared gray scale images. By the infrared light source positioning, ambient interference is highly avoided, and the accuracy of the positioning is improved. By controlling the infrared light sources to be turned on and off by turns, there is only one infrared light source being turned on in each of the gathered infrared gray scale images, by which the targets to be positioned are easily distinguished, and the image processing on the basis of greyscale can reduce the data volume to be transmitted and increase the processing speed to a large extent.

A method for measuring a depth of field is provided. A single optical lens module is used to capture an image. The depth-of-field data of each imaging area of the image is acquired according to plural first incident light portions and plural second incident light portions of the image. Then, the plural local depth-of-field data are combined as an overall depth-of-field data of the image. Moreover, an image pickup device using the method is provided. For acquiring the depth-of-field data, it is not necessary to install plural optical lens modules. Consequently, the fabricating cost is reduced, and the volume of the image pickup device is decreased.

A method for measuring a depth of field is provided. A single optical lens module is used to capture an image. The depth-of-field data of each imaging area of the image is acquired according to plural first incident light portions and plural second incident light portions of the image. Then, the plural local depth-of-field data are combined as an overall depth-of-field data of the image. Moreover, an image pickup device using the method is provided. For acquiring the depth-of-field data, it is not necessary to install plural optical lens modules. Consequently, the fabricating cost is reduced, and the volume of the image pickup device is decreased.

The present disclosure provides a technique which makes it possible to evaluate a state of a cell aggregation of one or more spheroids. In the culture state determination device according to the present disclosure, a plurality of light sources sequentially illuminate a plurality of cell aggregations put on an image sensor. The image sensor acquires captured images of the plurality of the cell aggregations each time when the plurality of the light sources illuminate the plurality of the cell aggregations. Control circuitry extracts a region including an image of the cell aggregation in the captured image; generates three-dimensional image information of the region using a plurality of the captured images; extracts an outer shape of the cell aggregation and a cavity part inside the cell aggregation using the three-dimensional image information; calculates a first volume that is a volume based on the outer shape of each of the cell aggregation and a second volume that is a volume of the cavity part based on the cavity part of each of the cell aggregation in the three-dimensional image information; and determines a culture state of the cell aggregations using the first volume and the second volume.

The present disclosure provides a technique which makes it possible to evaluate a state of a cell aggregation of one or more spheroids. In the culture state determination device according to the present disclosure, a plurality of light sources sequentially illuminate a plurality of cell aggregations put on an image sensor. The image sensor acquires captured images of the plurality of the cell aggregations each time when the plurality of the light sources illuminate the plurality of the cell aggregations. Control circuitry extracts a region including an image of the cell aggregation in the captured image; generates three-dimensional image information of the region using a plurality of the captured images; extracts an outer shape of the cell aggregation and a cavity part inside the cell aggregation using the three-dimensional image information; calculates a first volume that is a volume based on the outer shape of each of the cell aggregation and a second volume that is a volume of the cavity part based on the cavity part of each of the cell aggregation in the three-dimensional image information; and determines a culture state of the cell aggregations using the first volume and the second volume.

A sealed active marker apparatus of a performance capture system is described to provide protective housing for active marker light components coupled to a strand and attached via a receptacle, to an object, such as via a wearable article, in a live action scene. The receptacle includes a protrusion portion that permits at least one particular wavelength range of light emitted from the enclosed active marker light component, to diffuse in a manner that enables easy detection by a sensor device. A base portion interlocks with a bottom plate of the receptacle to secure the strand within one or more channels. A sealant material coating portions of the apparatus promotes an insulating environment for the active marker light component.

A sealed active marker apparatus of a performance capture system is described to provide protective housing for active marker light components coupled to a strand and attached via a receptacle, to an object, such as via a wearable article, in a live action scene. The receptacle includes a protrusion portion that permits at least one particular wavelength range of light emitted from the enclosed active marker light component, to diffuse in a manner that enables easy detection by a sensor device. A base portion interlocks with a bottom plate of the receptacle to secure the strand within one or more channels. A sealant material coating portions of the apparatus promotes an insulating environment for the active marker light component.

An image display apparatus includes an acquisition unit configured to acquire an image file that includes reconstructable image data that includes information corresponding to a light field, a display unit configured to display the image data included in the image file acquired by the acquisition unit as an image, and a control unit configured to control the display unit so as to display an image and perform display for informing a user that the image file corresponding to the image is a reconstructable image file.

A method for generating stereoscopic light-field data is provided. The method includes the following steps: obtaining three-dimensional image data; performing a multi-view generation process to convert the three-dimensional image data into multi-view data; and performing a light-field conversion process to convert the multi-view data into a stereoscopic light-field pair.