In this paper, we present a novel convergence control method for toed-in stereo camera systems. The proposed
method automatically computes a convergence angle for both (i.e., left and right) cameras to locate a target
object at image center. Unlike other image based auto-convergence algorithms, the proposed method aims
at controlling the angle of yaw of stereo camera, and thus makes a disparity of the target object be zero while
capturing stereoscopic images. The proposed algorithm is based on the fact that an object at convergence position
has a zero-disparity in stereoscopic images under the toed-in camera configuration. As a result, we can avoid
the accommodation-convergence conflict while watching the target object in stereoscopic images. Experimental
results demonstrate that the proposed method effectively estimates convergence angles for target objects at
This paper intends to show that the optical interconnection can be a substitute of the electrical serial interface in mobile
application. We designed the optical interconnection interface circuits on the evaluation boards which typically
correspond to the mobile phone and transferred the data through the optical waveguide module. There are 4 pairs of
VCSEL (Vertical Cavity Surface Emitting Laser) and PD (Photo Diode) arrays in the waveguide module and they are
used to send the strobe and the data signal in dual-simplex (i.e. Two Directions with Unidirectional Lanes) configuration.
We have demonstrated a successful data transmission of moving picture and real-time camera module images to the
main-LCD (Liquid Crystal Display) repeatedly and the still pictures to the sub-LCD at the maximum speed of 400Mbps.
This paper introduces a novel feed-forward type burst mode optical receiver, which has automatically gain controllable preamplifier and high sensitive peak detector using a 0.18mm CMOS technology. The important feature of the receiver is that it operates with a reset signal that is self-generated inside the receiver not applied externally. The designed receiver can be used in the Ethernet PON (Passive Optical Network) system and has a sensitivity of -28dBm and a overload of -8dBm at 1.25Gb/s optical input signal.