4 results about "Short exposure" patented technology

The present disclosure relates to an image processing method, device, equipment, storage medium and program product. The method comprises: in response to detecting a shooting instruction, obtaining at least two frames of captured images according to each group of light rays captured based on at least two preset aperture parameters; wherein the exposure of the captured image corresponding to each aperture parameter is different; and generating a high dynamic range image based on the at least two frames of captured images. In this way, by adjusting the amount of light entering the camera, captured images with different exposure can be obtained, which can improve the situation that underexposed captured images caused by a short exposure time cannot meet the requirements, thereby improving the imaging quality of the high dynamic range image.

The application provides a raw data modeling noise combined with a real paired data training method, which is an improvement of the collected paired data, and details and colors of an image are improved by adding a part of real paired data; the method comprises the following steps: S1, a real data set collection process; and S2, a process of synthesizing a false data set. In order to obtain a model with good denoising effect on different individual cameras and suitable for various camera devices, first, same models and different individual cameras are prepared, then a certain amount of real data is collected by using the cameras under different light conditions and scenes, the real data is processed into a paired data training set, then the data is mixed for training by combining physical modeling, and finally the model is generalized to other cameras. The paired data of the same model and different cameras are used to supplement the noise of the part not correctly modeled by the physical modeling, the noise problem of normal light and very short exposure time is improved, and the model can obtain good denoising effect in the same model and different cameras.

The application discloses a target point observation method and system based on image recognition and a storage medium. The method comprises the following steps: continuously shooting a space target in a short-time exposure mode to obtain a plurality of original images; processing the obtained original images to obtain corresponding star trail images; determining the motion trail and speed of the space target corresponding to the star trail according to the star trail trail line in the star trail image; comparing and matching the motion trail line and speed of the star trail in each star trail image to determine each space target; and determining the motion direction of each space target according to the time sequence of the original images. The application can normally identify the motion direction and speed of each space target and avoid the mutual interference of target points based on the image recognition processing method and the continuity of the star trail, and can predict the next appearing position of the space target.

This invention relates to a microscopic scanning focusing method and system adapted for live cell slides. By establishing a focal plane height model reflecting the spatial mapping relationship between the plane coordinates of the microgroove and the focal height at the bottom of the groove, the traditional large-scale focusing search starting from zero point by point is simplified to a local search guided by predicted focal height, significantly reducing the focusing time for each microgroove. Within the local search area, the sharpness characteristics and cell texture characteristics of the microscopic image are combined to distinguish between the false focal peaks generated by the liquid-gas interface and the true focal peaks of the cell layer at the bottom of the groove, so that the focusing results are not affected by the reflection from the transparent culture medium surface, ensuring that the focus is always locked on the cell layer at the bottom of the groove rather than the liquid surface. Based on this, the light source is triggered for short-time exposure imaging only when the objective lens and stage reach the focal height of the cell layer at the bottom of the groove determined after eliminating false focal peaks. Thus, while taking into account scanning efficiency, the experimental repeatability and data reliability of long-term serial observation of live cells are guaranteed.