Abstract: A signal component amount calculation unit calculates dispersion or standard deviation of multiple times of infrared detection signals detected by each detector element to be processed, and calculates the amount of a signal component dependent on infrared rays incident on the infrared detector included in the infrared detection signals, on the basis of the calculated dispersion or standard deviation. A fixed pattern noise calculation unit calculates the amount of a fixed pattern noise component on the basis of the infrared detection signals and the calculated amount of a signal component. A data update unit updates the fixed pattern noise data with the calculated amount of a fixed pattern noise component.

Abstract: The invention provides a projector apparatus with a distance image acquisition device and a projection mapping method that can project an image focused on the entire projection object even in a case in which there is a difference in distance to the projection object and the projection object moves. Two projector apparatuses with a TOF camera, that is, a first projector apparatus with a TOF camera including a first projector apparatus for a far distance and a first TOF camera that acquires a distance image of a far projection object and a second projector apparatus with a TOF camera including a second projector apparatus for a near distance and a second TOF camera that acquires a distance image of a near projection object can project a projection image for a far distance and a projection image for a near distance which are focused on the entire projection object even in a case in which there is a difference in distance to the projection object and the projection object moves.

Abstract: Provided are a solid-state electronic imaging device that makes periodic noise invisible and a method for controlling the solid-state electronic imaging device. In a solid-state electronic imaging device in which a plurality of photoelectric conversion elements are arranged, a second ramp wave whose level decreases for a second sampling period from the output of a read pulse for reading signal charge accumulated in the photoelectric conversion elements to the output of a reset pulse for resetting the signal charge accumulated in the photoelectric conversion elements is output. In a case in which the level of the second ramp wave is a second reference level, a second sampling pulse is output and a voltage signal converted from the signal charge is sampled. The sampling interval is non-periodic. Even in a case in which periodic noise has an effect on the solid-state electronic imaging device, it is possible to exclude the periodic noise from an object image obtained by imaging.

Abstract: An analog/digital conversion device that performs analog/digital conversion on an analog signal having different levels using different analog/digital conversion circuits, and a control method therefor are provided. In a case where an analog signal is greater than a threshold value, an output terminal of a first changeover switch is turned on. The analog signal is converted into digital data in a single slope type analog/digital conversion circuit. In a case where the analog signal is smaller than the threshold value, an output terminal of the first changeover switch is turned on. The analog signal is converted into digital data in a hybrid type analog/digital conversion circuit of which precision of conversion of the analog signal greater than the threshold value into digital data is lower than the precision of a single slope type analog/digital conversion circuit.

Abstract: A distance image processing device, a distance image acquisition device, and a distance image processing method that enable acquisition of a distance image with high precision and high visibility in the case of short range measurement are provided. A distance image processing device includes a first discrimination unit that discriminates a pixel having a distance value exceeding a certain distance range among a plurality of pixels of a distance image as an abnormal pixel, a second discrimination unit that discriminates the abnormal pixel discriminated by the first discrimination unit as a first abnormal pixel that is continuous and a second abnormal pixel that is not continuous, and a clipping processing unit that changes a distance value of the first abnormal pixel into a certain value.

Abstract: Provided are a device and method for controlling a solid-state electronic imaging device which can change the amount of exposure of a photoelectric conversion element without changing the structure of the imaging device. A reset pulse and a read pulse are applied to photoelectric conversion elements included in an imaging device in synchronization with a synchronizing signal. The output interval of the synchronizing signal up to the photoelectric conversion elements in a predetermined row is ?H1 and is constant. For the photoelectric conversion elements in the subsequent rows, the output interval of the synchronizing signal is ?H2 that is longer than ?H1. Since the reset pulse and the read pulse are synchronized with the synchronizing signal, the output interval of the synchronizing signal is long. It is possible to adjust the amount of exposure of the photoelectric conversion element.

Abstract: An analog/digital conversion device that performs analog/digital conversion on an analog signal having different levels using different analog/digital conversion circuits, and a control method therefor are provided. In a case where an analog signal is greater than a threshold value, an output terminal of a first changeover switch is turned on. The analog signal is converted into digital data in a single slope type analog/digital conversion circuit. In a case where the analog signal is smaller than the threshold value, an output terminal of the first changeover switch is turned on. The analog signal is converted into digital data in a hybrid type analog/digital conversion circuit of which precision of conversion of the analog signal greater than the threshold value into digital data is lower than the precision of a single slope type analog/digital conversion circuit.

Abstract: Provided are a distance image acquisition apparatus capable of obtaining a wide-range and high-accuracy distance image, and an application thereof. The distance image acquisition apparatus includes a distance image generation unit (42) that generates a distance image including a plurality of distance values corresponding to a time of flight of light from an light emitting unit (12) to a light-receiving surface of an imaging unit (20) on the basis of an imaging result of the imaging unit (20); a storage unit (22) that stores correction information corresponding to a lens thickness difference between a plurality of main light beam paths from a lens (14) to the light-receiving surface of the imaging unit (20); and a correction unit (44) that corrects the distance values in the distance image on the basis of the correction information.

Abstract: Provided are an imaging apparatus, a flicker detection method, and a flicker detection program that can accurately detect a flicker even in a case in which an image of a bright object is captured. A digital camera directs a MOS imaging element 5 to perform a plurality of imaging operations at an arbitrary frame rate and compares captured image signals which are read from the imaging element 5 for frame periods F1 and F2 based on the frame rate to detect whether a flicker has occurred. The end time of a signal reading period in the frame period F1 is before the end time of the frame period F1 and the end time of a signal reading period in the frame period F2 coincides with the end time of the frame period F2.

Abstract: There are provided a lens barrel, an imaging device body, and an imaging device that can reduce a deviation in a blurred image of oblique luminous flux caused by an APD filter. A lens barrel includes a first lens optical system and a second lens optical system serving as lens optical systems including focus lenses, a diaphragm that changes the amount of an incident ray and emits the incident ray, a first APD filter that is disposed on a light-incident side of the diaphragm, and a second APD filter that is disposed on a light-emitting side of the diaphragm. Since the amount of a reduced upper ray L1 of oblique luminous flux and the amount of a reduced lower ray L2 thereof are made to be substantially equal to each other by the first APD filter and the second APD filter, a deviation of a blurred image is reduced.

Abstract: In an aspect of the invention, a projector apparatus (20) with a distance image acquisition device includes a projection image generation unit (28), a difference value acquisition unit (101) that acquires a difference value between distance information of a first distance image acquired at a first timing and distance information of a second distance image acquired at a second timing, a determination unit (103) that determines whether the body to be projected is at a standstill on the basis of the difference value acquired by the difference value acquisition unit (101), a projection instruction unit (105) that outputs a command to project an image generated by the projection image generation unit (28) to the body to be projected, and a projection control unit (107) that controls a projection operation of the projector apparatus (20) on the basis of the projection command output from the projection instruction unit (105).

Abstract: A received light signal of the measurement light which is reflected from the subject and is then incident on a distance image sensor is acquired from the distance image sensor and a distance image is generated on the basis of the acquired received light signal. The position of a leading end of a medical instrument inserted into the subject is acquired. A leading end position image indicating the position of the leading end of the medical instrument in the subject is acquired. A projection image which is projected to the subject and corresponds to a surface shape of a corresponding part of the subject corresponding to the position of the leading end is generated from the leading end position image, on the basis of the shape of the subject detected from the distance image and the position of the leading end. The projection image is projected to the corresponding part.

Abstract: Provided are an imaging apparatus, a flicker detection method, and a flicker detection program that can accurately detect a flicker even in a case in which an image of a bright object is captured. A digital camera directs a MOS imaging element 5 to perform a plurality of imaging operations at an arbitrary frame rate and compares captured image signals which are read from the imaging element 5 for frame periods F1 and F2 based on the frame rate to detect whether a flicker has occurred. The end time of a signal reading period in the frame period F1 is before the end time of the frame period F1 and the end time of a signal reading period in the frame period F2 coincides with the end time of the frame period F2.

Abstract: The invention provides a projector apparatus with a distance image acquisition device and a projection mapping method that can project an image focused on the entire projection object even in a case in which there is a difference in distance to the projection object and the projection object moves. Two projector apparatuses with a TOF camera, that is, a first projector apparatus with a TOF camera including a first projector apparatus for a far distance and a first TOF camera that acquires a distance image of a far projection object and a second projector apparatus with a TOF camera including a second projector apparatus for a near distance and a second TOF camera that acquires a distance image of a near projection object can project a projection image for a far distance and a projection image for a near distance which are focused on the entire projection object even in a case in which there is a difference in distance to the projection object and the projection object moves.

Abstract: Provided are an imaging apparatus, a flicker detection method, and a flicker detection program that can accurately detect a flicker even in a case in which an image of a bright object is captured. A digital camera directs a MOS imaging element 5 to perform a plurality of imaging operations at an arbitrary frame rate and compares captured image signals which are read from the imaging element 5 for frame periods F1 and F2 based on the frame rate to detect whether a flicker has occurred. The end time of a signal reading period in the frame period F1 is before the end time of the frame period F1 and the end time of a signal reading period in the frame period F2 coincides with the end time of the frame period F2.

Abstract: A signal component amount calculation unit calculates dispersion or standard deviation of multiple times of infrared detection signals detected by each detector element to be processed, and calculates the amount of a signal component dependent on infrared rays incident on the infrared detector included in the infrared detection signals, on the basis of the calculated dispersion or standard deviation. A fixed pattern noise calculation unit calculates the amount of a fixed pattern noise component on the basis of the infrared detection signals and the calculated amount of a signal component. A data update unit updates the fixed pattern noise data with the calculated amount of a fixed pattern noise component.

Abstract: A noise data update processing unit calculates the amount of a fixed pattern noise component on the basis of a detection signal of infrared rays detected by an infrared detector in a state where an optical system is controlled to be in a non-focused state, and updates an FPN data storage unit with the calculated amount of the FPN component. The noise data update processing unit calculates an average value of detection signals of each detector element and a plurality of peripheral detector elements, and calculates a signal component dependent on incident infrared rays included in the detection signal of each detector element by subtracting an average value of fixed pattern noise data before update from the calculated average value. The amount of the fixed pattern noise component is calculated by subtracting the calculated signal component from the detection signal of each detector element.

Abstract: There are provided a lens barrel, an imaging device body, and an imaging device that can reduce a deviation in a blurred image of oblique luminous flux caused by an APD filter. A lens barrel includes a first lens optical system and a second lens optical system serving as lens optical systems including focus lenses, a diaphragm that changes the amount of an incident ray and emits the incident ray, a first APD filter that is disposed on a light-incident side of the diaphragm, and a second APD filter that is disposed on a light-emitting side of the diaphragm. Since the amount of a reduced upper ray L1 of oblique luminous flux and the amount of a reduced lower ray L2 thereof are made to be substantially equal to each other by the first APD filter and the second APD filter, a deviation of a blurred image is reduced.

Abstract: There are provided a lens barrel, an imaging device body, and an imaging device that can reduce a deviation in a blurred image of oblique luminous flux caused by an APD filter. A lens barrel includes a first lens optical system and a second lens optical system serving as lens optical systems including focus lenses, a diaphragm that changes the amount of an incident ray and emits the incident ray, a first APD filter that is disposed on a light-incident side of the diaphragm, and a second APD filter that is disposed on a light-emitting side of the diaphragm. Since the amount of a reduced upper ray L1 of oblique luminous flux and the amount of a reduced lower ray L2 thereof are made to be substantially equal to each other by the first APD filter and the second APD filter, a deviation of a blurred image is reduced.

Abstract: Provided are an imaging apparatus, a flicker detection method, and a flicker detection program that can accurately detect a flicker even in a case in which an image of a bright object is captured. A digital camera directs a MOS imaging element 5 to perform a plurality of imaging operations at an arbitrary frame rate and compares captured image signals which are read from the imaging element 5 for frame periods F1 and F2 based on the frame rate to detect whether a flicker has occurred. The end time of a signal reading period in the frame period F1 is before the end time of the frame period F1 and the end time of a signal reading period in the frame period F2 coincides with the end time of the frame period F2.