2 results about "Spin image" patented technology

The application discloses a kind of based on motion compensation time domain filtering method for image, comprising: using autoregressive moving average model to the obtained gyroscope error is modeled, the change rule of data is used to estimate model parameter, and gyroscope error model is established;Using the gyroscope data of removing error obtained by gyroscope error model, the rotation matrix of camera is calculated, and the rotation image is compensated in reverse using rotation matrix, and the de-rotation image is obtained.Through kalman filtering to image motion vector sequence, image random jitter is obtained, and the de-rotation image is compensated according to random jitter, and the stable image and the subjective motion vector of image are obtained;Using the motion target detection algorithm in difference map based on large map coordinate system to detect target in stable image.The application has high detection sensitivity, and can detect target and its trajectory quickly through a small amount of frame track correlation.

The invention relates to the technical field of image processing, discloses a medical instrument image processing method, and particularly relates to an endoscope rotation image processing method and an endoscope. According to the invention, the spatial position of the real-time image is updated to obtain the rotation image, the problem of image rotation caused by rotation of the endoscope is solved, and stable display of the image is realized. The parameters of the feature extraction module are dynamically adjusted by determining the rotation angle distribution result, so that the feature extraction process can adapt to the rotation change degree of the endoscope, and the accuracy and comprehensiveness of feature expression are improved. Moreover, image estimation is iteratively updated based on a regularization item of a convolution attention mechanism, spatial frequency information is captured in a convolution mode, a key area is focused in combination with the space and channel attention mechanism, image blurring is effectively removed, and the image restoration quality is improved. In addition, a pure rotation angle is accurately separated from the compound motion by an attitude calculation method based on quaternion and a spiral displacement method, so that the precision of rotation correction is ensured.