System and methods for time lapse video acquisition and compression

摘要

Techniques and devices for acquiring and compressing timelapse video are described. The techiques are adaptive, in that the acquisition frame rate is adapted and captured images are periodically deleted during filming. To implement the method, a user need not know ahead of time how long the source video will be acquired. Regardless of the acquisition time, the resulting video is automatically edited to provide a timelapse clip of a predefined length or of a length within a predefined range. Start Acquire and store images at First Frame Rate ritical Number of images? " Discard Halfof "0 Stored images Reduce Frame Rate by Haif N ra N Acquire and store images at New Frame Rate W inishei Fil ming? / End No critical number of images? / No Yes 107 Figure 1