Ⅰ. Event Page
1. Create an event, or use the default event.
2. Set the correct starting time of the event. If you enable the gun time to display, all times on subsequent pages will subtract the starting time.
3. Set the number of characters of the bibs and whether there is an initial letter. If there is no initial letter, leave this option blank.
Ⅱ. Ai Page
Shoot runners from the front, each runner passing through the frame will be tracked in real-time and 2-3 photos will be saved.
1. Interface Function Buttons
(1) Use two fingers to pinch the screen to control the camera's shooting range.
(2) Gear button: Set whether to use high-precision models and other configurations.
(3) Shutter button: Set video resolution and frame rate.
(4) Brush button: Draw a red ending line by hand to mark the current timing point. When runners crossing this line, their times will be recorded automatically.
(5) Long-press an empty area of the screen to control the start and pause of athlete detection.
(6) Record button: Click to start recording video. (If the resolution ratio is 4K, the video file size will be large, please look out the storage space.)
(7) When the phone placed flat on the desktop, runner detection will stop to conserve battery power.
Typically, there is no need to record the frame, the software has detected and saved all runners who have passed through as images automatically.
2. Interface Index
(1) Red Time: Current time. If enable "using gun time to display" in the event settings, it shows the time elapsed from the gun time to the current time.
(2) FPS: Video frame rate, it means the number of frames per second captured by the camera.
(3) AI FPS: Ai processing frame rate (the Ai processing frame rate will not exceed the camera frame rate. When the camera frame rate is high, the Ai will give up some frames to reduce computational load).
(4) LOAD: The proportion of computational load from Ai processing relative to the phone's performance (when approaching or exceeding 100%, excessive computational load may cause the program to crash).
3. Playback Mode
Click the button in the top-right corner to enter the video playback interface. Load the video to extract all runners appearing in the video along with their bib numbers information.
1. Before loading the video, firstly set the start time of the first frame of the video. Bind each frame of the video to the correct event time, thereby obtaining the correct time for each athlete.
2. Click the Start and Pause buttons in the top-right corner to start or pause the video playback.
3. You can draw a timing line, and the time will be recorded when the runners passing through.
4. Each playback execution generates a record, including all images extracted from the playback. By modifying the time of one image, you can modify all images in this playback.
5. After completing the modifications, you can export and merge the image data from this playback and enter the review page.
Ⅲ. Review Page
You can search for and review images of runners.
1. Generally, three images of a runner passing through the frame will be recorded: the first image detected, the image when the runner arriving the timing line, and the last image before leaving the frame.
2. The red flag in the lower left corner of the image indicates that this image shows the runner arriving the timing line, with the corresponding time being the moment of crossing the ending line.
The best recognition rate, generally above 98% will achieve when using bibs with the following specifications:
1. Length is 24 cm and width is 16 cm, with the number in the center of the bib, spanning the entire width of the bib.
2. The character area of the bib uses a dark background color, with the number characters in a light color.
3. The number consists of 4 pure digits without any letters.
