摘要:
An intelligent cable storage drum system for use in a pipe inspection system may include a cable storage drum, a video push-cable disposed on the cable storage drum having a proximal end and a distal end for coupling to a camera, and a transceiver module operatively coupled to an output at the distal end of the camera for providing camera output signals to the transceiver module.
摘要:
A method of processing borehole log data to create one or more image logs involve modelling the log data as components of an image in the form i(x, y)=l(x, y)×r(x, y) (1), in which i(x, y) is an image representative of the log data, l(x, y) denotes an illumination value of the image at two-dimensional spatial co-ordinates x, y, and r(x, y) denotes a surface reflectance value at the co-ordinates x, y. Equation (1) is transformed to a logarithmic domain, and a Fourier transform is obtained of the resulting logarithmic domain expression to obtain a Fourier domain expression. The Fourier domain expression is high-pass filtered, and an inverse Fourier transform is obtained of the resulting filtered Fourier domain expression. An exponential operation is performed on the result of inverse Fourier transform to obtain a filtered image model expression. Values of the filtered image model expression are mapped to respective color values across the range of the filtered image model expression values. The mapped color values can then be displayed, printed, saved and/or transmitted as one or more image logs.
摘要:
In one embodiment, a mechanically self-leveling camera head includes a rear housing assembly, an illumination window, an illumination window retainer having a forward end for holding the illumination window a threaded coupling ring for having the rear housing assembly screwed over a rear portion of the coupling ring and the illumination window retainer screwed over a forward portion of the coupling ring, and a camera module assembly supported inside the housing.
摘要:
A multi-camera hemispherical very wide field of view imaging apparatus with omnidirectional illumination capability comprises a cylindrical body (4, 4.a, 4.b), a hemispherical mechanical frame (2) arranged on one end of the cylindrical body (4, 4.a, 4.b), a plurality of imaging channels (3), each imaging channel (3) comprising at least an image sensor and related optics with a fixed focus appropriate for endoscopic imaging, the plurality of imaging channels (3) being distributed over the hemispherical mechanical frame (2), a light source arranged centre-down at a back part of the plurality of imaging channels (3) and inside or at the end of the cylindrical body (4, 4.a, 4.b). Each imaging channel (3) comprises a plurality of lightning channels (1) around their centre, each of the plurality of lightning channels (1) comprising at least one microfiber light guide having a determined angle of curvature arranged to transmit the light from the light source. The imaging apparatus further comprises a control and processing circuit (5) comprising a camera control unit (6), an illumination control unit (7), an illumination unit (8), a sample and capture unit (9), an image processing unit (10) and an output interface (11) to a PC. The camera control unit (6) is configured to power each of the plurality of imaging channels (3) and make automatic gain compensation for each imaging channel (3), the illumination control unit (7) is configured for automatic intensity dimming, the sample and capture unit (9) is an interface circuit for correct sampling, extraction and capturing frames of individual imaging channels (3), the image processing unit (10) is configured for constructing a spherical panoramic image by applying a determined algorithm, and the output interface (11) is arranged to output the spherical panoramic image to a system configured to visualize it.
摘要:
The present disclosure relates to an inspection assembly (10) for inspecting the interior of a pipe (12). The inspection assembly (10) comprises a sensor assembly (20) adapted to receive a sensor signal and a housing (22) within which the sensor assembly (20) is at least partially arranged. The inspection assembly (10) comprises a seal (24) at a first housing end (31). Moreover, the inspection assembly (10) is adapted to assume a transport condition in which the sensor assembly (20) is positioned in a first position in the housing (22) and in which the seal (24) is closed. The inspection assembly is further adapted to assume an inspection condition in which the inspection assembly (20) is positioned in a second position, closer to the first housing end (31) as compared to the first position, and in which the seal (24) is open.
摘要:
An image pickup apparatus is provided with: an objective optical system; an image pickup device; a contrast AF section adjusting a focus so that a peak value of a contrast evaluation value of an image is taken; an amount-of-motion detecting section detecting, from a plurality of time-series images, amounts of motion of the subject; and a control section controlling the contrast AF section so as to calculate another contrast evaluation value in a region where a region to be excluded where an amount of motion is equal to or larger than a threshold is excluded from a calculation target region, and the contrast AF section corrects the other contrast evaluation value based on an area of the calculation target region and an area of the region where the region to be excluded is excluded from the calculation target region.
摘要:
A wastewater monitoring system uses a camera in a fixed location in a wastewater pipe that takes a still photograph of a location of interest at defined intervals, such as five minutes. The photographs are retrieved from the camera, and are then analyzed on a computer system that aggregates the still photographs into a video stream, allows a user to define an area of interest on one of the still photographs, then uses suitable algorithms or heuristics to detect changes between the photographs in the video stream. Video clips of interest are then generated using the detected changes, and are identified to a user so the user can review the video clips of interest to determine flows in the wastewater pipe that was monitored.
摘要:
The present invention achieves a reduction in the size of a device by acquiring a plurality of images in different position without shifting microlenses (MLs) of an one imaging element while suppressing shading and crosstalk. Provided is an endoscope image-acquisition device including: an objective optical system that forms two subject images in parallel; and an imaging element that has a plurality of MLs arrayed at an entrance side from the objective optical system and in which pixels are allocated to the respective MLs, wherein the centers of light-sensitive portions at the pixels are displaced with respect to the optical axes of the MLs such that displacements therebetween are gradually increased from the center portion of the imaging element toward peripheral portions thereof; the position of an exit pupil of the objective optical system is closer to an object than an imaging position of the objective optical system is; and conditional expression (1) is satisfied. 0.5≦(θH−θD)/α≦3 (1) Here, α is an angle formed by a chief ray at a horizontal maximum image height and an optical axis, θH is a chief-ray correction amount (angle) for the ML at the horizontal maximum image height (H) from the center portion of the imaging element, and θD is a chief-ray correction amount (angle) for the ML at a distance D from the center portion of the imaging element. The distance D is the distance between the center portion of the imaging element and the point of intersection between α line drawn toward the center portion of the imaging element at a degrees from the position of the exit pupil of the objective optical system and the imaging element.
摘要:
A computer-implemented method and an image acquisition system for synchronizing movement of a device associated with a microscope and acquisition of images from a camera associated with the microscope. An exposure signal is received from the camera associated with the microscope. The exposure signal is analyzed to identify a period of time when the device associated with the microscope may be moved. In addition, image data associated with the exposure signal is received. Further a command is issued to the device associated with the microscope to move the device associated with the microscope to a new position during the identified period of time.
摘要:
Camera heads configured to provide digitally articulated images or video, at adjustable resolutions and/or offsets and orientations, to a camera control unit (CCU) or other electronic computing system for display, storage, and/or transmission to other systems are disclosed.