OCV Application - LED Display Panel - Character Teaching
OCV - Optical Character Verification is a process that is used to confirm
that characters that are printed on labels, or characters that are
displayed (e.g. on an LCD panel or LED panel), are within a tolerance that
guarantees that they are readable by humans. OCV is critical in
applications such as pharmaceutical labeling or display manufacturers for
cell phone, watch, or automotive panel display quality control. This
example shows eight characters on an LCD display panel being taught to an
OCV verification system. The numerals 1 to 8 are taught. The blue rectangle
encompasses the entire character string and is used to automatically locate
the character string. The green rectangles show where each numeral has been
individually taught to the OCV system. These patterns and templates may be
stored on disk for later recall for processing the string. After the
characters have been taught to the system, new images are captured as each
new LCD panel is presented for OCV confirmation.
Back to OCR/OCV Software