34results about How to "Remove parallax" patented technology

An aerial camera system including a plurality of main reels, a camera interface/safety reel and a stabilized camera head. The camera head is supported from main cables from the main reels with a safety reel cable providing power, data and video communication between the camera head and a main computer system. Each of the main reels, the camera interface/safety reel and the camera head are in communication with the main computer system, which controls the feeding and reeling in of the main cables. Further, the computer system controls the feeding and reeling in of the safety reel cable, which typically only follows the camera head as it moves in three-dimensional space, but may in emergency mode support the weight of the camera head and be used to slowly pull the camera head up and out of the way so that it does not interfere with any activity below the flight area. The aerial camera system may also include a level wind assembly that keeps the cables wound on the drum of the main reels and/or the safety reel in a controlled and consistent manner. Furthermore, the camera head of the aerial camera system may use a rotating gimbal assembly with computer controlled leveling motors for keeping the camera head level as the gimbal assembly moves.

An infrared imaging device combines two sensors, each sensor sensitive to a different spectral range of infrared radiation. Both sensors are combined in a single camera sharing one of three common optical apertures, thus parallax is eliminated between the sensors. Further, a display device is aligned along an optical axis in common with the camera eliminating parallax between the display and camera. Images from the first sensor, the second sensor, or both sensors may be viewed optically and/or electronically. The device is handheld, or mountable on a headgear such as a helmet. When mounted on headgear, the display is viewable by directing the operator's gaze upward, thus the display does not interfere with an operator's straight and downward sight. The image can be sent to a remote display by a wireless transceiver, and waterproof, fireproof, vibration/impact resistance, and hot/cold weather resistance are achieved using a high strength plastic enclosure with foam insert.

A surface-treated film, a transparent rigid layer and a transparent relaxing layer are laminated in this order to form a transparent laminate. Particularly, the transparent relaxing layer is made of an adhesive. The dynamic storage modulus G′ of the transparent rigid layer at 20° C. is not lower than 2×10⁸ Pa. On the other hand, the dynamic storage modulus G′ of the transparent relaxing layer at 20° C. is not higher than 1×10⁷ Pa. The transparent laminate is directly laminated onto a visual surface side (pen-input side) of a liquid crystal panel provided as an image display panel so that the transparent relaxing layer is placed inward. Thus, a pen-input image display device is produced.

The invention discloses a visible light/long-wave infrared broad band spectrum joint focusing optical imaging system comprises a broad spectrum focusing window, a color separation film, a long wave infrared lens group and a visible light lens group. The color separation film and a horizontal optical axis form an angle of 45 degrees, and light incoming from the broad spectrum focusing window passes through the color separation film and the visible light lens group to image on a visible light sensor. The long wave infrared lens group is composed of a first lens, a second lens, a reflector and athird lens from an object space to an image space in sequence, the reflector is parallel to the color separation film, and infrared light in broad spectrum light passes through the color separation film and the long wave infrared lens group to image on a non-refrigeration detector. A first face of the second lens is a binary surface, a second face of the third lens is an aspheric surface, and systematic heat difference and optical aberration are removed through the design of the binary surface and the aspheric surface. The visible light/long-wave infrared broad band spectrum joint focusing optical imaging system can solve the problem that a single wave band is not high in detection accuracy, two wavebands and two lenses have optical parallax on imaging, two wavebands are big in imaging aberration, an infrared system has heat difference, and two wavebands need focusing mutually.

The invention discloses a video stabilizing method based on local and bulk motion difference compensation. The method comprises the following steps: 1) acquiring motion tracks of feature points in adjacent video frames by an optical flow method, gridding the video frames, and calculating camera paths of grids and overall video frames according to a content saving constraint and a similarity invariant constraint; 2) calculating compensation matrixes between the overall camera paths and the grid camera paths, and calculating an optimized overall camera path according to constraints of path smoothening and overlapping; 3) calculating optimized grid camera paths according to compensation matrixes between the optimized overall camera path and the grid camera paths; and 4) solving deformation matrixes of the grids according to the non-optimized grid camera paths and the optimized grid camera paths, and deforming the grids to obtain stable video frames. Compared with an existing method, the video stabilizing method has the advantages that the number of paths needing to be optimized is reduced from the number of the grids to an overall path through the compensation matrixes, so that the calculation time is shortened, and the calculation efficiency is increased.

The invention discloses a preparation method of an integrated touch-control transparent active matrix organic light emitting diode (AMOLED) display device. The preparation method comprises: manufacturing a buffer layer on a carrier; manufacturing a first transparent thin-film hardening layer on the buffer layer; manufacturing a first barrier layer on the first transparent thin-film hardening layer; manufacturing a touch screen sensor on the first barrier layer; manufacturing a transparent flexible substrate on the touch screen sensor; manufacturing a shielding layer and a second barrier layer on the transparent flexible substrate; preparing a low-temperature polycrystalline thin-film transistor layer on the second barrier layer; manufacturing a transparent OLED element layer on the low-temperature polycrystalline thin-film transistor layer; manufacturing a protection layer on the transparent OLED element layer; manufacturing a transparent packaging cover plate on the protection layer; manufacturing a second transparent thin-film hardening layer on the transparent packaging cover plate; and removing the carrier and the buffer layer. On the basis of the technical scheme, the thickness and cost of the integrated touch-control transparent AMOLED display device can be reduced and the parallax can be eliminated.

The invented aiming method is characterized by that a beam splitter prism is placed in the front of laser distance sensor for measuring contact network line guide height to make the exit light-beam of the laser distance sensor be perpendicular to the incident face of beam splitter prism. A camera head is placed under the incident face of the beam splitter prism to make the optical axis of said camera head be perpendicular to incident face of the beam splitter prison, and perpendicular to exit light-beam of laser distance sensor, the video output of the camera head is connected with display. When the image of measured object is coincided with crosspoint of cross-line of camera head, the aiming can be define.

The invention discloses a view-field-based monocular depth camera and an object shape detection method thereof. The monocular depth camera comprises an infrared and visible compound light source, a structured light projection photoelectric engine, a 3D and 2D real-time fusing optical camera, a near infrared image sensor, a visible light image sensor and a structured light three-dimensional imagingmain control; the structured light projection photoelectric engine encodes structured light and projects the structure light to a to-be-detected object, the 3D and 2D real-time fusing optical cameracollects texture information of the surface of the to-be-detected object, the near infrared image sensor and the visible light image sensor receive 3D and 2D real-time fusing optical camera information, and the structured light three-dimensional imaging main control receives signals of the near infrared image sensor and the visible light image sensor and obtains a three-dimensional profile and texture information of the to-be-detected object. Accordingly, a parallax error of a visible light collection module and an infrared collection module in a general depth camera is eliminated, the calibration step is omitted, the measurement precision is improved, the number optical lenses needed by the general depth camera for receiving the signal is reduced to be one from two, the production cost islowered, and the system stability is improved.

The invention discloses an array image calibration method. A central image is used as reverence, multi-scale characteristics are adopted for characteristic point matching operation, then RANSAC is introduced for improving matching precision, and therefore overall calibration can be realized. Still the central image is used as a reference image, a mathematic limit principle is adopted for blocking calibration, and therefore parallax error of array images caused by different position relations can be eliminated. The multi-scale characteristics are also adopted for the blocking calibration, and structure similarity between two image blocks is calculated after calibration; if similarity value is smaller than a set threshold value, a gray scale-based calibration method is adopted; if the similarity value is still smaller than the threshold value, the size of the image blocks is changed till the similarity value meets requirement. Seamless splicing is completed according to results of two times of blocking calibration, and array cameras are put under a visual angle of a central camera in a unified manner. Via use of the method disclosed in the invention, no camera calibration is needed, good calibration effects can be exerted for parts where characteristic points are extracted, and good calibration effects can be exerted for margins or parts where no characteristic point can be extracted.

The invention relates to the technical field of bridge deformation detection, and discloses a bridge deformation detection method and system, and the method comprises the steps: carrying out the pre-analysis of a bridge, and arranging deformation monitoring points; laying an image acquisition device, and matching laying reference points to form a reference plane; acquiring a bridge image as a basic image when no pedestrian or vehicle runs on the bridge, and measuring and calculating to obtain space coordinates of an image acquisition device, a deformation monitoring point and a reference point; when pedestrians or vehicles run on the bridge, performing image acquisition on the bridge according to a preset frequency to obtain a deformation image; establishing a three-dimensional deformationcoordinate system O-XYZ to obtain three-dimensional deformation values of the deformation monitoring points, and summarizing the three-dimensional deformation values to obtain a dynamic deformation curve graph of the deformation monitoring points in X, Y and Z directions. The dynamic deformation of the bridge can be monitored in real time, static deformation can be measured, potential risks are effectively warned, the operation is easy, the cost is low, and wide application prospects are achieved.

The embodiments of the present invention provide an image splicing method and device. According to the method, the overlapping area of a first image and a second image which are to be spliced is determined, and a plurality of pixel point pairs in the overlapping area are determined; a pixel point pair is optionally selected from the plurality of pixel point pairs as a first pixel point pair, and the first pixel point pair is projected onto a geometric curved surface of which the curved surface radius is a first preset value, and an arc distance L between the first pixel point pair is obtained;the curved surface radiuses of the remaining pixel point pairs are respectively calculated according to the depth values of target real scenes corresponding to the remaining pixel point pairs, a first depth value and the first preset value; the coordinate of each pixel point on an unfolded image is determined; and the coordinates of pixel points in the first image or the second image in the overlapping area are translated by L, so that two coordinates corresponding to each pixel point pair can be overlapped with each other; and the unfolded image in which the coordinates of the plurality of pixel point pairs are overlapped with each other is determined as a spliced image. With the image splicing method and device of the invention adopted, the coordinates corresponding to the pixel point pairs in the overlapping area can be completely overlapped with each other in the unfolded image, and the accurate splicing of the images to be spliced is realized.

The invention provides a long-wave infrared and visible light common-aperture composite imaging camera and system. The camera comprises an optical lens, which comprises a front lens group, a spectroscope, a visible light path lens group and a long-wave infrared light path lens group which are sequentially arranged along a light path, wherein the visible light path lens group is arranged on a light path of the visible light, and the long-wave infrared light path lens group is arranged on a light path of the long-wave infrared light; a visible light sensor arranged on the imaging side of the visible light path lens group and used for receiving the light transmitted by the visible light path lens group and generating visible light imaging information; and a long-wave infrared sensor arranged on the imaging side of the long-wave infrared light path lens group and used for receiving the light transmitted by the long-wave infrared light path lens group and generating long-wave infrared light imaging information. According to the technical scheme, the visible light sensor and the long-wave infrared sensor can have the same view field, so that all-day target observation and image acquisition are realized.