System and method for capturing time-lapse photographs

摘要

A method for generating a series of time-lapse photographs exhibiting minimal flicker is presented. The preferred method is adaptable to capture a series of time-lapse photographs of a sunset from full daylight to darkest night or vice versa while minimizing flicker between the images. The method utilizes a software program designed to achieve an even transition of the time-lapse and to minimize flickering of an image sequence. The software program features a flicker minimizing function designed to control several factors affecting the time-lapse technology. The present method utilizes data regarding a time-of-day a time zone at a geographic location. Latitude and longitude coordinates are utilized to automatically adjust the rate of change of exposure in a period of twilight. The software program is executed with a time-lapse interval between a plurality of images.

主权项

1. A method for generating a sequence of time-lapse photographs, the method comprising the steps of:
a. entering into a software program installed on an electronic device a camera aperture value, a camera sensitivity value and a camera shutter speed value to establish an initial image luminance near the desired image luminance value; b. executing the software program to control a camera to capture a plurality of images having a time-lapse interval between said images; c. gradually increasing the camera shutter speed value to maintain said desired image luminance; d. incrementally increasing the camera sensitivity value when the camera shutter speed value increases beyond the camera sensitivity shift time; e. causing a corresponding reciprocal change in the camera shutter speed value whenever the camera sensitivity value changes incrementally; f. automatically and gradually increasing the camera shutter speed value by the software program to maintain the desired image luminance when the camera sensitivity value has not attained a maximum value; and g. incrementally increasing the camera sensitivity value whenever the camera shutter speed value increases beyond the camera sensitivity shift time and making a corresponding reciprocal change by the software program in the camera shutter speed value whenever the camera sensitivity value is incrementally changed.