12 results about "Reference image" patented technology

A correcting portion of an endoscope subjects a reference image to a magnification correction process so that the distance between a first mark and a second mark within the reference image is substantially equal to the distance between a first mark and a second mark within a comparative image. Next, the corrected reference image is subjected to a rotation correction process so that the orientation of the second mark with respect to the first mark within the reference image is substantially equal to the orientation of the second mark with respect to the first mark image within the comparison image. Further, the corrected reference image is subjected to a brightness distribution correction process so that the brightness distribution thereof becomes equal to that of the comparison image. The display state of the reference image and comparison image are made substantially equal, comparative diagnosis is facilitated, and diagnostic efficiency is improved.

Provided are a method and an apparatus for tagging a photograph with information. The method of tagging a photograph with information, which calculates a shooting position of an input image from reference images having shooting position information to tag the shooting position information, includes: selecting a plurality of reference images; calculating a relative shooting position of the input image to the shooting positions of the reference images; calculating the shooting position of the input image on the basis of the calculation result of the calculating; and storing the shooting position and shooting direction information on the input image in an exchangeable image file format (EXIF) tag of the input image.

The invention discloses a low-illumination monitored image enhancement method based on similar scenes. The method includes obtaining high-illumination images similar to low-illumination monitored images to construct a similar scene image library, wherein the sizes of images in the image library are the same with those of the low-illumination monitored images; pre-processing the low-illumination monitored images to improve image quality; searching an image the most similar to the low-illumination monitored images to be enhanced as a reference image in the similar scene image library, wherein the image the most similar to the low-illumination monitored images to be enhanced has the smallest pixel difference sum with the low-illumination monitored images to be enhanced in the similar scene image library; and matching a histogram of the low-illumination monitored images to be enhanced with a histogram of the reference image by using a histogram matching method so as to enhance the low-illumination monitored images. The definition of the low-illumination monitored images enhanced by the method can be improved.

The invention discloses an on-off state image recognition method for a high-voltage double-column isolating switch, relates to the technical field of power systems, and solves the technical problem ofrecognizing the oil level of a transformer. The method comprises the steps that a rectangular opening and closing identification area is set in a monitoring image of the double-column type isolationswitch, two calibration areas A and B are defined in the opening and closing identification area, and a movable conductive tube and a static conductive tube of the double-column type isolation switchare both located in the calibration areas A; then, when the double-column isolating switch is closed, an image of an opening and closing identification area is intercepted as a reference image, gray processing is carried out on the reference image, and after fitting calculation, a calibration area A connection percentage value and a calibration area B background percentage value of the reference image are calculated; and identifying the real-time image in the opening and closing identification area by using the connection percentage value of the calibration area A and the background percentagevalue of the calibration area B of the reference image. The method provided by the invention is suitable for the substation configured with the high-voltage double-column isolating switch.

The invention discloses a method and device for determining a vehicle track, electronic equipment and a storage medium, and belongs to the technical field of artificial intelligence, and the method comprises the steps: obtaining vehicle track characterization data in a specified time period in a specified area, the vehicle track characterization data comprising a plurality of vehicle images, and position information and time information corresponding to each vehicle image, if the vehicle identifier is not successfully recognized from any vehicle image, comparing a first face feature of the driver in the vehicle image with a second face feature of the driver corresponding to the vehicle of which the vehicle identifier is successfully recognized, and if the first face feature is matched with the second face feature corresponding to any vehicle, judging whether the vehicle identifier is successfully recognized from any vehicle; and if not, determining the vehicle image as a track reference image of the corresponding vehicle, and generating the track of the vehicle based on each track reference image of each vehicle and the position information and time information corresponding to each track reference image. Therefore, the classification accuracy of the vehicle image can be improved, and the accuracy of the finally determined vehicle track can be improved.

The invention discloses a defrosting control method and device and freezing/refrigerating equipment. The method comprises the steps that projection images of an evaporator on a projection plane are obtained at preset time intervals, wherein the projection plane is a windward side of the evaporator; the acquired projection images are compared with a pre-stored reference image to obtain the similarity between the projection images and the pre-stored reference image, wherein the reference image is the projection image of the evaporator on the projection plane in a frost-free state; and the operation mode of the freezing/refrigerating equipment is controlled according to the similarity. According to the method, defrosting can be performed timely according to actual frosting conditions, and theperformance of the freezing/refrigerating equipment is improved.