VIDEO TRACKING METHOD AND DEVICE, AND OBJECT RECOGNITION METHOD AND DEVICE

A video tracking method comprises: determining a first tracking target in a video, and performing a video tracking process on the first tracking target based on the video; performing area overlap degree calculation on the first tracking target in a current image and the first tracking target in a past image during the video tracking process, the past image being an image obtained when the first tracking target was tracked last time in the video tracking process; extracting respective feature information of feature points of the first tracking target in the video during the video tracking process on the first tracking target; matching the extracted respective feature information of the feature points of the first tracking target in the current image with the respective feature information of corresponding feature points of the first tracking target in the past image if a result of the area overlap degree calculation is less than or equal to a preset threshold; and continuing the video tracking process on the first tracking target if the respective feature information of at least a preset number of feature points among the extracted feature points in the current image matches with the feature information of corresponding feature points of the first tracking target in the past image.