摘要:
A calibration pattern unit which obtains correction information of an imaging system by imaging at the imaging system is formed by combining a plurality of three-dimensionally arranged planes. The calibration pattern unit comprises supporting members each of which has a predetermined surface corresponding to one of the planes, and a calibration pattern in which a predetermined pattern is formed on the predetermined surface of the supporting member. The supporting member can selectively set the calibration pattern unit to a first form for photographing when the correction information is obtained, and a second form for other purposes.
摘要:
A 3-dimensional image acquisition apparatus acquires images to be used for 3-dimensionally reconstructing an object by picking up the object by a camera twice or more in an image acquisition set including picking up at least once the object carrying a pattern projected onto it by a projection light source. The apparatus comprises a light projection information memory configured to store information on projection of light including information on the time for projecting light for the purpose of projecting the pattern in the image acquisition set, an image acquisition progress information memory configured to store information on the progress of image acquisition in the image acquisition set, and a controller configured to control the projection of light by the projection light source and the picking up by the camera on the basis of the stored information on projection of light and the stored information on the progress.
摘要:
An image pickup apparatus is capable of performing an image pickup with pattern projection on an object to obtain three-dimensional information on the object, and an image pickup without pattern projection. The image pickup apparatus comprises an exposure level determination section configured to determine a predetermined exposure level needed by an image pickup device of the image pickup apparatus, and a shutter speed determination section configured to determine a first shutter speed to achieve the predetermined exposure level determined by the exposure level determination section in the image pickup without pattern projection, and a second shutter speed not slower than the first shutter speed. The image pickup with pattern projection is conducted by use of the second shutter speed.
摘要:
A calibration pattern unit which obtains correction information of an imaging system by imaging at the imaging system comprises a calibration pattern which has a known geometric pattern formed on a plurality of three-dimensionally arranged planes, and a relative position and posture fixing section which fixes relative position and posture between the calibration pattern and the imaging system.
摘要:
A finder apparatus which is used together with a photographing apparatus presents a marker for positioning for setting relative positions of the photographing apparatus and an object for calibration so as to be visually recognizable by an operator in a finder configured to present an image of a subject so as to be visually recognizable by the operator, when photographing the object for calibration including at least one of a known shape and a known surface attribute in order to acquire parameters of a photographing optical system of the photographing apparatus.
摘要:
A calibration apparatus which estimates a calibration parameter of an image acquisition apparatus, comprises a calibration jig which includes at least two planes and in which calibration markers having known three-dimensional positions are arranged in each plane based on a predetermined rule. The calibration apparatus further comprises a calibration marker recognition section configured to measure and number in-image positions of the calibration markers in at least one image obtained by photographing the calibration jig by the image acquisition apparatus, and a parameter estimate section configured to estimate the calibration parameters of the image acquisition apparatus by the use of the three-dimensional position and the in-image position of the calibration markers numbered by the calibration marker recognition section.
摘要:
A three-dimensional photographing apparatus includes a photographing unit configured to photograph an object from a plurality of viewpoints and a projecting unit configured to project a pattern on the object in photographing. The projecting unit including an optical system having a projection view angle. The projection view angle of the optical system falls within a range where the photographing unit photographs the object and is set so as to project the pattern on an overlapped area which is formed by overlapping photographing spaces capable of photographing the object from the viewpoints.
摘要:
This stereo camera system is constituted of a stereo optical module which acquires a stereo image, a central control unit which evaluates an object as a target based on the stereo image acquired by the stereo optical module, and a communication line through which stereo image data output from the stereo optical module is input to the central control unit. Further, in this stereo camera system, an image output processing circuit which performs predetermined image processing with respect to the stereo image acquired by the stereo optical module is provided in the stereo optical module, whereby this image output processing circuit performs a correction arithmetic operation which corrects unbalance at the time of capturing the stereo image.
摘要:
A stereo camera supporting apparatus of the present invention comprises a joining member constituted in such a manner as to support a stereo camera on a vehicle, and a control device which controls posture or position of the stereo camera supported on the vehicle by the joining member. The control device controls the posture or position of the stereo camera with respect to video obtained by the stereo camera in such a manner that a contour portion present in the highest level position in a contour of a noted subject in the video is positioned in a frame upper end of the video or its vicinity irrespective of a change of the posture or position of the vehicle.
摘要:
In this stereo optical module, a constituent member is arranged in at least one of a circuit arrangement space which exists substantially behind a front lens unit and above a primary deflecting mirror and a secondary deflecting mirror and a circuit arrangement space which exists substantially behind a front lens unit and below a primary deflecting mirror and a secondary deflecting mirror.