ZOOM-TRACKING METHOD PERFORMED BY IMAGING APPARATUS

摘要

Provided is an improved zoom-tracking method. A point or two points between a Wide point and a Tele point are chosen, histogram information is stored, and a distance to a subject is estimated based on the stored histogram information. A locus curve is selected based on the estimated distance to the subject, and zoom-tracking is performed along the locus curve after a zoom lens reaches a specific point.

主权项

1. A zoom-tracking method performed by an imaging apparatus, the method comprising:
choosing a first point and a second point between a Wide point and a Tele point, wherein the first point is closer to the Wide point than the second point; storing distance information about a subject as histogram information by performing auto-focusing (AF) while a zoom lens moves from the first point to the second point; estimating a distance to the subject based on the histogram information while the zoom lens moves from the second point toward the Tele point; selecting a locus curve based on the estimated distance to the subject; and performing zoom-tracking along the selected locus curve after the zoom lens reaches the second point.