The autofocus (AF) system has gained popularity in over 40 years. Embedded in a camera, it
can bring the best focused image to the viewer within a few seconds, which frees users from …

A new passive autofocus algorithm consisting of a robust focus measure for object detection
and fuzzy reasoning for target selection is presented. The proposed algorithm first detects …

When designing an auto-focusing actuator for use in cell phone cameras, it is essential to
minimize the device size, maximize the positioning repeatability, and minimize the power …

Autofocusing is widely used in applications where sharp image acquisition or projection is
needed. Here we report an active autofocusing method for sharp image projection. The …

Disclosed embodiments provide for a an image signal processing system that includes back-
end pixel processing unit that receives pixel data after being processed by at least one of a …

In kee** with consumer preferences for ever smaller electronic products, a requirement
exists for compact, high-performance auto-focusing actuators for the camera modules …

When designing an auto-focusing actuator for use in cell phone cameras, it is important to
maximize the positioning repeatability while simultaneously minimizing the device size, the …

In kee** with consumers' preferences for electronic products of ever smaller size and
enhanced functionality, it is necessary to reduce the profile of the auto-focusing actuators …

This study proposed an approach to control voice coil motors (VCMs) installed in
smartphone modules as autofocus actuators. The VCM developed in this study comprises …

This paper presents the design methodology to implement a fully digital control IC for the
position control of the auto-focus (AF) lens module in applications to mobile phone camera …