10 results about "Stereo imaging" patented technology

Systems and methods for calibrating a stereo imaging device are disclosed herein. An example implementation includes receiving, at a processor, a plurality of image pairs from a stereo imaging device, and for each image pair of the plurality of image pairs, computing a respective line delta value indicative of a deviation along a horizontal axis between a first image captured by a first sensor and a second image captured by a second sensor. The implementation also includes determining a median line delta value based on each respective line delta value and subsequently determining a respective set of disparities in one or more features in the first image and the second image based on the median line delta value. The method also includes computing a column delta value and calibrating the stereo imaging device using the median line delta value and the column delta value.

The invention provides a stereoscopic display method for a video conference and a video conference system. The stereoscopic display method of the video conference comprises the following steps. A first electronic device generates an image. The first electronic device encodes a hidden watermark into an image. The first electronic device transmits an image to a second electronic device. The second electronic device displays the image on a window of a display picture. The second electronic device searches a rectangular frame on the display picture; the second electronic device determines whether the hidden watermark is decoded in the rectangular frame. If the hidden watermark is decoded in the rectangular frame, the second electronic device performs stereo imaging on the content of the rectangular frame.

The invention discloses a high-speed stereo imaging method and device based on monocular pulse time domain modulation, and the method comprises the steps: introducing a periodic time domain modulation signal into a light path, and printing a unique time label for an image at a specific visual angle in a mixed light intensity signal; by means of the capturing capacity of the pulse camera for high-frequency modulation signals, mixed images which are originally difficult to separate in space can be effectively distinguished in the time domain, and therefore the advantages of being compact in hardware and free of geometric distortion of a monocular system are kept, high-frame-rate and high-precision stereoscopic video reconstruction is achieved at the same time, and the high-resolution and high-precision stereoscopic video reconstruction is achieved. And the technical blank in the field of high-speed monocular stereoscopic vision is effectively filled.

When arranging two optical systems in parallel, miniaturization is achieved while avoiding interference between the image sensors. [Solution] The stereo imaging system 10 comprises two imaging devices 11 and 12, each having an optical system including a first lens group L1, arranged so that the first lens groups are in parallel. The optical system of each of the two imaging devices includes a first optical element 121 that branches the optical path from the first lens group into a first optical path extending in a direction different from the optical axis direction of the first lens group and a second optical path extending in a direction different from the first optical path, a second lens group L21 arranged on the first optical path and having a positive refractive power toward the first imaging plane, a second optical element 122 that bends the second optical path, and a third lens group L22 arranged on the second optical path bent by the second optical element and having a positive refractive power toward the second imaging plane. The bending direction of the second optical path by the second optical element in each of the two imaging devices is different from that of the other.

The defective product removing device based on the 3D machine vision comprises a conveying assembly installed on the top of a base, a third electric telescopic rod is fixed to the outer wall of the top of the base, a lifting seat is fixed to the output end of the third electric telescopic rod, and the inner wall of the lifting seat is movably connected with a mounting frame through a rotating shaft; a placement plate is fixed to the top of the mounting frame and is driven by a driving part, a connecting rod is fixed to the outer wall of one side of the placement plate, a partition plate is fixed to the end, away from the placement plate, of the connecting rod, and a 3D visual camera is fixed to the side wall of the partition plate. According to the utility model, three-dimensional data of the surface of the workpiece is obtained by the 3D visual camera by utilizing an optical projection or stereo imaging technology, high-precision quality detection is carried out by combining a geometric algorithm and a machine learning algorithm, defects of the workpiece can be accurately identified, defective products and qualified products are efficiently distinguished, and the partition plate moves downwards to isolate adjacent workpieces to avoid detection interference.

The application provides a monocular endoscope stereo imaging system and a three-dimensional measurement method, and relates to the technical field of endoscope imaging. The monocular endoscope stereo imaging system comprises a monocular endoscope body and an optical prism body, the monocular endoscope body is internally provided with an imaging unit and a lens unit, first incident light and second incident light correspondingly form first image information and second image information on the imaging unit after being reflected by the optical prism body, the first image information and the second image information have horizontal parallax, and the first image information and the second image information after stereo correction have no vertical parallax. The monocular endoscope stereo imaging system provided by the application can realize stereo imaging based on a single camera structure, overcome the defects of the prior art, reduce the hardware size, reduce the development cost, and improve the image quality.

[Problem] To downsize while avoiding interference between imaging elements when two optical systems are arranged in parallel. [Solution] In this stereo imaging system (10), two imaging devices (11, 12) each having an optical system including a first lens group (L1) are arranged such that the first lens groups are arranged in parallel. The optical system of each of the two imaging devices has: a first optical element (121) that splits an optical path from the first lens group into a first optical path extending in a direction different from the optical axis direction of the first lens group and a second optical path extending in a direction different from the first optical path; a second lens group (L21) disposed on the first optical path and having positive refractive power toward a first imaging surface; a second optical element (122) that bends the second optical path; and a third lens group (L22) disposed on the second optical path bent by the second optical element and having positive refractive power toward a second imaging surface. The respective bending directions in which the second optical path is bent by the second optical element in each of the two imaging devices are different from each other.

Example techniques relate to stereo imaging with audio playback devices. Example playback devices described herein may include multiple speakers, such as a forward-firing audio transducer and side-firing audio transducers. Using example techniques, such playback devices may play stereo content partially directly and partially as a dipole, which may enhance (e.g., widen) a stereo image formed by the transducers. Yet further, such techniques may be combined with steering techniques to direct output of the transducers away from obstructions that may be present in proximity to the audio playback devices.

The invention discloses a 250-1800 nanometer hyperspectral ultra-wide field-of-view stereo imaging spectrometer, and belongs to the technical field of remote sensing spectral imaging, the 250-1800 nanometer hyperspectral ultra-wide field-of-view stereo imaging spectrometer comprises a front-view detection module, a front-view detection module and a rear-view detection module, and each detection module comprises a first microlens array, a plurality of optical fibers, a plurality of second microlens arrays and a plurality of spectrum detection assemblies. The first micro-lens array collects incident light of a one-dimensional ultra-wide field of view, the incident light is transmitted to the corresponding second micro-lens array through the optical fiber for collimation, and the incident light is received by the detector after being split by the optical filter and the plane transmission grating. According to the imaging spectrometer provided by the invention, the working wave band is divided into a plurality of continuous sub-wave bands, excellent spectral resolution is realized in each sub-wave band, high-resolution spectral imaging in an ultra-wide spectral range of 250-1800 nanometers is finally realized, and the imaging spectrometer is very suitable for remote sensing broad-spectrum wide-area spectrum detailed investigation and three-dimensional imaging measurement systems.

This application discloses a weld inspection device and a weld inspection method, relating to the field of battery manufacturing technology. The first vision module of the weld inspection device includes a first planar imaging camera and a first stereo imaging camera. The first vision module is used to move along a preset busbar inspection trajectory to take pictures of the busbar of the battery located on the top surface of the battery within the inspection station. The second vision module of the weld inspection device includes a second planar imaging camera and a second stereo imaging camera. The second vision module is located at the entrance or exit of the inspection station and is used to take pictures of the equipotential bonding pads on the side of the battery within the inspection station. The first vision module can take pictures of the busbar and form a more continuous image of the top surface of the battery, while the second vision module can take pictures of the equipotential bonding pads on the side of the battery, enabling the weld inspection device to inspect the busbar welds and equipotential bonding pad welds on different surfaces of the battery in parallel.