1. An image capturing device, comprising: an image capturing module capturing a plurality of temporary images corresponding to a scene; and a processing module sequentially analyzing the temporary images to correspondingly generate a plurality of analysis results, dynamically adjusting the sampling time of each temporary image captured by the image capturing module according to each of the analysis results, selecting some of the plurality of temporary images according to the analysis results, integrating the selected temporary images, and stopping capturing the temporary images based upon a stop signal to generate a storage image.