Echolizer is video analysis software that runs on Windows.
It was developed to analyze "movement" from video files and measure the movement speed and direction of any area (region of interest, ROI) in the video. It is possible to analyze motion in any video, but below we will explain Echolizer using the analysis of ultrasound echo images as an example. *Echolizer is not a medical device and is not intended to be used for clinical diagnosis, treatment, or prevention. Please use it for research and education. * Works on Windows 7 or later. Mac version and tablet version are not sold.
What you can do with Echolizer ver.1
Video import and manipulation ・File format: WMV, MPEG4, AVI ・Rotate and move videos
Setting the joint region (ROI) ・Rectangle, ellipse, parallelogram ・Up to 6 locations ・Possible to display a grid and set the precise position of the ROI
Visualization of object motion ・Display by arrow color or length ・Show arrows at all points of interest or the average value of ROI with a single arrow ・Video output
Quantification of object movement speed and its orientation (angle with respect to the horizon) within each ROI ・CSV file output ・Average speed and direction of movement for each ROI can be analyzed
video comparison ・Comparison by superimposing two videos ・Comparison by left-right arrangement of 2 videos
Terms of sale
EcholizerThose who understand that is not a medical device and agree not to use it clinically
Function introduction (use manual)
Installation instructions 1. Installation: Select set up from the installation file and install the program 2. Click Help > About Version > Registration to view your ID 3. Send your ID to GLAB 4. Send passcode from GLAB 5.Enter in the passcode input box under the ID 6. Activation completed (this allows you to use the copy and data save functions)
Analysis of video files 1. Loading video files
Start Echolizer. When the screen appears, switch to the OpticalFlow 1 screen. Click New Project from the menu and select the video file to be analyzed.
2. Scale setting
Enter the number of pixels per mm in Scale Setting. If there is a scale in the moving image, it can be done automatically.
3. Specify ROI (Region of Interest)
When analyzing a specific area within an image, you can narrow down the analysis range by specifying the ROI. It is also possible to measure the average speed and average angle in ROI units. Up to 6 ROIs can be specified.
Analysis of movement speed and movement angle is performed using the FarneBack method of OpticalFlow. You can analyze only one frame or analyze the entire video (within the analysis range). Select any row in the frame list on the left to analyze it. The analytical measurements are plotted on the image with moving speed and moving angle arrows. Average velocity and variance values are displayed in the selection line. Click Calculate All to automatically analyze the entire video.
Display the measurement results for each ROI.
Analysis sample video
5. CSV output of measurement results, video output of analysis images
When the measurement is completed, the measured value and analysis video are output. Select Export CSV from the menu to output the measured values to a CSV file. After that, select Export Video from the menu to output the analysis image as a video.
2 video file analysis
Press the Positioning button and set any two points. This allows you to compare two videos by overlapping them in the same positional relationship. By setting two points on a certain bone, the two ultrasound videos are moved to the position where the two points overlap. This makes it possible to superimpose two images based on the position of the bone when comparing videos of ultrasound imaging of the same site.
If you want to adjust the position and angle of the image in more detail, you can precisely align the image position on the Positioning screen. The video of Optical Flow1 is displayed in red, and the video of Optical Flow2 is displayed in blue.