35results about How to "Solve Stretching Problems" patented technology

The present invention relates to an image acquisition method, especially a continuous stacked image acquisition method for sorting large-leaf crops. In order to solve the problems in the background technology, a continuous stacked image acquisition method for sorting large-leaf crops is provided, including An encoder is set in the traveling direction of the large-leaf crops, and the encoder is electrically connected to at least two line-scan cameras. The encoder outputs a square wave signal to the line scan camera after rotating N circles, and the square wave signal is used as the line frequency signal of the line scan camera; 2) When the line scan camera receives the square wave signal from the encoder, the line scan camera continuously The image of the large-leaf crops is collected, and the present invention has the characteristics of realizing cascaded continuous feeding of the large-leaf crops, thereby improving detection efficiency.

The invention discloses a line scan camera triggering time-sequence synchronization method, which is used for a line scan camera scanning system. The line scan camera scanning system includes a photographing part used for photographing a to-be-detected object, a carrier used for placing the to-be-detected object and a Y-axis motor. The carrier moves along a Y-axis under driving of the Y-axis motor. The photographing part includes a line scan camera. The method includes the steps of: providing a frame triggering signal to the line scan camera in advance; and outputting a row triggering signal to drive photographing of the line scan camera when a preset start position is reached, wherein the start position is set after starting of the frame triggering signal. The invention also discloses a line scan camera triggering time-sequence synchronization device, line scan camera triggering time-sequence synchronization equipment and a storage medium, and relates to the technical field of cameras. The line scan camera triggering time-sequence synchronization method, the line scan camera triggering time-sequence synchronization device, the line scan camera triggering time-sequence synchronization equipment and the storage medium solve the problem of stretching or distortion of an image shot by a line scan camera in the prior art, and improve image shooting effect.

The invention discloses a line array camera scanning method, which is used in a line array camera scanning system, comprising the steps of: acquiring an image of an object; selecting a plurality of marking points on the image of the object; Points are followed by high-precision focusing to determine the focus position of each marking point; according to the focus position of each marking point, the target is scanned with a line scan camera. It overcomes the selection basis of the best focal length based on the definition of a single scanning line in the prior art, which leads to the phenomenon that the image in the vicinity of the focal point is easy to appear unclear, and the shooting trigger signal of the line scan camera is controlled by the movement of the vehicle. Trigger generation, so that after the vehicle stops moving, a shooting trigger signal can be sent to avoid image distortion or misalignment caused by the line array camera taking pictures when the vehicle is moving, and improve the focusing accuracy of the line array camera, thereby improving the scanning accuracy .

The invention discloses a semi-honeycomb steel belt gear hobbing machine capable of ensuring uniform forced convection flow field. The driving shaft is connected with the main shaft of the reduction motor through a coupling, the two trapezoidal gears are installed in mesh with each other, and the gap between the tooth surfaces is the thickness of the steel strip. Using the above technical solution, using the principle of gear meshing, the steel strip is extruded into a semi-hexagonal semi-honeycomb steel strip during the meshing process of the steel strip. The deformation is small and the production efficiency is high; the fine-tuning mechanism of the driven gear shaft is designed, and by fine-tuning the distance between the main and driven wheels, the problem of excessive extrusion and stretching of the steel strip caused by the slight change in the thickness of the steel sheet is solved; The parallelism of the moving wheel solves the large arc distortion problem of the semi-honeycomb steel belt; the structure is simple, and the use and adjustment are convenient.

An embodiment of the present invention provides an automatic wrapping wrapping machine, which is used to make the wrapping strips independent of each other when winding up the wrapping strips, so that stretching problems will not occur due to asynchronous wrapping strips. The technical solution of the embodiment of the present invention includes: an automatic winding and wrapping machine, including a guide device, a cutting device, a guide device, a material storage device, and a coiling device arranged in sequence; the material storage device includes several vertical Guide shafts, each of the guide shafts is provided with a guide wheel that moves up and down along the guide shaft, and several of the guide wheels are independent of each other; the cloth to be rolled enters the A cutting device, the cloth to be rolled is cut into several cloth strips in the cutting device, the several cloth strips enter the guide wheel through the guide device, and the winding device winds up the several bags Cloth.

The invention discloses a music humming searching method conducting matching based on binary approach dynamic time warping and relates to the technical field of audio searching and humming searching. The method includes two portions: first utilizing musical instrument digital interface (MIDI) music files to build a music data base; then extracting characteristics of a humming fragment, conducting matching based on the binary approach dynamic time warping with a music data base model and returning a searching result. The method includes the following steps: first conducting normalization, band-pass filtering, pre-emphasis, windowing framing and the like on the humming fragment; then conducting silencing section filtering, keynote detection, mid-value smoothing and the like; finally conducting matching based on the binary approach dynamic time warping, sequencing matching rates from the high to the low and returning the result. The method has the advantages of achieving note sequence time point alignment and note relative pitch of music searching and remarkably improving searching hit rate.

The invention provides an Android-based resolution ratio automatic adjustment method. The Android-based resolution ratio automatic adjustment method includes the steps of (10) an initial blank area of an Android file system is divided to form a storage sector; (20) data in the storage sector are read through a BootLoader procedure to be transmitted to an inner core; (30) the inner core valuates the historical resolution ratio to a CPU output the resolution ratio; (40) the optimum resolution ratio of a current external displayer is obtained through a display driver to be written into the storage sector; (50) whether the historical resolution ratio is coincident with the optimum resolution ratio of the current external displayer or not is judged, the step (60) is executed if the historical resolution ratio is coincident with the optimum resolution ratio of the current external displayer, or the step (20) is repeatedly executed; (60) the CPU output resolution ratio is valuated to display-size of an Android framework layer. The invention further provides an Android-based resolution ratio automatic adjustment system; and the Android-based resolution ratio automatic adjustment system can be automatically suitable for display scales of different external displayers.

The invention provides an elastic knitted fabric knitting method. Every three lines form a knitting transverse row by knitting to serve as a cam system and include loop yarns, surface yarns and groundyarns, an integral binding effect of the loop yarns on gray cloth is weakened, an underfilling coefficient of surface yarn loops is increased, and polyurethane filaments are capable of giving play toan elastic effect. A fabric produced according to the method reaches 220% or above in transverse and longitudinal elongation and reaches 80% or above in after-stretching recovery rate. The inventionfurther provides a circular knitting machine which can be used for producing elastic knitted fabrics. By additional mounting of a polyurethane yarn conveying system on an existing single-side circularknitting machine and improvement of a polyurethane yarn guide, a non-loop knitting cam and a looping tucking cam, stability and smoothness in polyurethane yarn feeding are realized, and fabric production efficiency and product quality are improved.

The invention discloses a method, a device and a vehicle for generating a panoramic image of a vehicle. The method for generating a panoramic image of a vehicle includes: respectively acquiring multiple preset directions around the vehicle collected by multiple vehicle-mounted camera devices on the vehicle. image; according to the pre-established distortion image mapping table, the images in the plurality of preset directions are respectively mapped to the preset theoretical spherical surface to obtain a plurality of spherical images on the theoretical spherical surface; for the plurality of Image fusion is performed on the spherical image to generate a spherical panoramic image of the vehicle. The embodiment of the present invention can effectively solve the problem of object stretching when mapping the image onto a plane, thereby better restoring the intersections around the vehicle, facilitating the driver to observe, and increasing the visual field of view of the overlooking interface, making driving Drivers can see more of the road conditions, improving safety.