Progress Report: Craineometer

Cody Hall | Chris Heelan | Jorge Perez

Intro to Plagiocephaly

A condition characterized by an asymmetrical distortion (flattening of one side) of the skull. (Dorland’s)

Common in newborn babies, as a result of intrauterine environment or infant positioning after birth. Nearly 70% will be screened.

Plagiocephaly Assesment

0 to 9 mm Mild

10 to 19 mm Moderate

> 20 mm Severe

𝐷𝐿𝑙−𝐷𝑅𝑟=𝐷𝑃

http://www.plagiocephalyflathead.com/measure_plagiocephaly.php

Camera Test 1: Resolution Error

30cm x 22cm area / 2592 x 1936 pixels Gives us a 0.13mm spatial resolution under

perfect conditions

Segmentation and Edge Detection Use of histogram threshold

Experimental Setup

Single dot camera characterization is underway

Flattened Image

Matlab image processing will import photos and find the center

Demo App Description

1) Show splash screen and delay 2) Show menu screen w/ two buttons

◦ Camera button will eventually call Camera API Currently a pop-up saying not implemented

◦ Load Image button will eventually allow user to select previously saved image Currently opens pre-loaded image

3) Load image and four markers◦ Colored markers for longest diagonals

4) Press Calc. Ratio button

Future Improvements of Manual App Markers should be dynamically created to allow

for placement on longest diagonal and midline◦ Calculate angle between two lines and automatically

place markers for other diagonals◦ Place one marker, double-tap, drag out to place other

marker (line drawn while you drag) Add mid-line/ear alignment angle mode

◦ Place markers on mid-line and place markers on ears◦ Calculate angle between lines

Camera API◦ Take new picture◦ Load picture from Photo Gallery

Automatic App

Use edge-detection to find head outline and calibration dots

Automatically place markers for midline and diagonals◦ Allow for manual adjustment if needed

Provide absolute distance calculations using known size of calibration dots