Method and system for acquiring image information

Abstract

The invention discloses a method and system for obtaining image information. The method includes the steps that S1, an image sensor is controlled to expose a whole exposure area, a total graph search is carried out on exposed image data to obtain a target point, a window range containing the target point is set, and a window position is recorded; S2, the image sensor is controlled to expose the window position area recorded in the exposure area to extract the exposed image data; S3, feature extraction is carried out on the data extracted in the S2, whether the target point exists or not is calculated in a matching mode, if the target point does not exist, jumping to the S1 is performed, and if the target point exists, the S4 is performed; S4, whether the target point and a window meet a preset positional relationship or not is judged, if the target point and the window do not meet the preset positional relationship, the window position is adjusted according to a preset adjustment strategy, moreover, a window position record is updated, and returning to the S2 is performed; when a suspending signal is detected, the process is finished. By the mode that target predication and the image sensor are combined to perform partial exposure to obtain the data in the prediction range, data obtaining quantity and image matching calculated quantity are reduced, and speed and accuracy for tracking a target are improved.

Description

technical field [0001] The invention relates to the field of picture matching and target tracking, in particular to a method and system for acquiring image information. Background technique [0002] Object tracking in sequence images has always been an important problem to be solved in the fields of computer vision, image processing and pattern recognition. It has a wide range of applications, such as target tracking, industrial product monitoring, traffic intersection monitoring, etc. [0003] However, most of the existing processing methods are for the whole image, and the target is searched, matched and tracked in the whole image, which makes the matching calculation of the image larger, and it is impossible to quickly track the target. Contents of the invention [0004] The invention provides a method and system for acquiring image information, which solves the problems in the prior art that the calculation amount of image matching is large and the target tracking spe...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and system for acquiring image information, which solves the problems of large amount of image matching calculation and slow target tracking speed in the prior art

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