Please select the most similar patent number from A, B, C and D. Which number is?
A scan imaging method, comprising: obtaining first scan data when a linear-array camera scans a target object in a first direction; correcting the first scan data according to a correction rule corresponding to the first direction to obtain a first image; obtaining second scan data when the linear-array camera scans the target object in a second direction; correcting the second scan data according to a correction rule corresponding to the second direction to obtain a second image; and splicing the first image and the second image to obtain a scan image of the target object. Scanning on reciprocating paths can be achieved, idle stroke in movement is reduced, and scan efficiency is improved; moreover, when scanning directions are different, scan data is corrected using correction rules corresponding to the scanning directions, so as to improve the quality of a scan image. Also provided are a computer device and a storage medium.
A: Embodiments of the present application provide an image storage method and apparatus, and an electronic device and a storage medium. The method comprises: obtaining pixel data obtained by scanning in a first partial region of a scanning region as first pixel data and storing same to a storage space; correcting the first pixel data by using a preset correction algorithm to obtain second pixel data and storing same to the storage space; when determining that the remaining space of the storage space meets a preset condition, obtaining pixel data obtained by scanning in the remaining region of the scanning region as third pixel data and storing same to the storage space, the scanning mode of the remaining region being a second preset scanning mode; and correcting the third pixel data by using the preset correction algorithm to obtain fourth pixel data and storing same to the storage space. According to the present application, because the number of pixels obtained by scanning in the second preset scanning mode is less than the number of pixels obtained by scanning in a first preset scanning mode, the size of an image before correction is reduced, thereby improving the success rate of image storage.
B: A file scanning method, comprising: receiving a target image, extracting contour features, first filtering processing, overlapping processing, second filtering processing, calculating distance feature values, calculating one-dimensional head-up feature values, facing determination, and rotation correction. The described method achieves the orderly storage of the target image, manual intervention is not needed for the entire process, the position of a file in a scanning apparatus does not need to be checked when a user scans the file, a file to be scanned can be placed into the scanning apparatus in any direction, and manual intervention is not needed for a later stage, thereby greatly increasing the digital processing efficiency of a physical information image of existing files.
C: A method and device for processing print data, and a storage medium. The method comprises: taking a matrix of print data corresponding to one scan operation performed by a print head in a first scan direction as a first print data matrix and a feathering length (S1); obtaining a first mask template, and obtaining a second mask template according to the first mask template (S2); and performing data processing on the first print data matrix according to the feathering length, the first mask template and the second mask template to obtain a second print data matrix (S3). The method prevents severe distortion of a printed image, thereby increasing quality of the printed image.
D: A magnetic resonance imaging control method and apparatus (1), and a computer readable storage medium. Said control method comprises: under a preset FOV, controlling a magnetic resonance imaging device (2) to excite a scanning sequence to pre-scan a target scanning position, so as to obtain scanning data (S22); inputting the scanning data into a neural network model, and outputting, from the neural network model, scanning position information corresponding to the scanning data (S23); determining a gradient encoding direction of the magnetic resonance imaging according to the scanning position information (S24); controlling the magnetic resonance imaging device (2) to excite a scanning sequence to perform magnetic resonance scanning on the target scanning position, so as to acquire a plurality of echo signals (S25); filling the plurality of echo signals into a K space to acquire K space data of the target scanning position (S26); and determining an initial magnetic resonance image according to the K space data, and reversely rotating the initial magnetic resonance image by a preset deflection angle, so as to generate a magnetic resonance image (S27). The magnetic resonance imaging control method can improve the correction efficiency and correction accuracy of magnetic resonance scanning, thereby improving the quality of a magnetic resonance image.
Answer: B