Documentation for Intellect 4.11.0-4.11.3. Documentation for other versions of Intellect is available too.

Previous page Search by colour  Search by motion in the area Next page


It's possible to search the video recording by line crossing from the functional menu of Video archive window.

Note.

Search by line crossing is possible only when:

  1. VMDA metadata storage and the Tracker objects are created for the camera that is used for searching in Intellect software package (see Configuring smart video detection tools); and
  2. VMDA metadata storage is selected for the corresponding camera on the Monitor object settings panel (see Selecting and configuring video cameras).

Search by line crossing runs only on a given day.

Note.

How to set a date is described in Fragment search by the date and time of creation section.

To search by line crossing, do the following:

  1. Select Line crossing from Search in archive dropdown menu in the functional menu.
  2. Pressing the left mouse button set end points of the line in video recording display field.

  3. Do all necessary operations with the line. Operations with the line are performed in the table.

    Operation

    Operation result

    Press the left mouse button in video surveillance window

    End point of the line creating

    Hover cursor over the end point and pressing the left mouse button shift the mouse

    End point of the line shift

    Hover cursor over the end point and click the right mouse button

    Line deleting

  4. To select the type of the object that was crossing the set line it's necessary to click . Available types of the object are performed below.

    1.  Any object. Search will give out the video recordings in which line is crossed by any object
    2.  Human being. Search will give out the video recordings in which line is crossed by an object which width is less than height.
    3.  Car. Search will give out the video recordings in which line is crossed by an object which width is greater than height.

  5. By default, the search is set to find line crossings in both directions. Click the left mouse button to one of arrows to exclude crossings in one of the directions. De-selected arrow becomes gray.

    Approximate speed of objects which are to be found is displayed close to arrow. At minimal and maximal value of speed the "?" sign will display, and only records containing line crossing regardless of speed will be searched for. It is possible to change value of speed by changing arrow length moving arrowhead with pressed left mouse button.

    Note.

    Arrow has minimal length while adding.



    As a result the search selects the video recordings by given parameters. Search results are displayed in timestamps column.

Search by line crossing can be canceled at any time by pressing the Esc button on the keyboard. In this case, no search results are displayed, and the text [none] is displayed in the list of video fragments. After the search is completed, pressing the Esc key clears the list of search results, and exits the search by line crossing mode.

Note.

Setting the traffic direction of the object by VMDA detector depends strongly on Tracker object settings (see Administrator's Guide manual). With bad settings the traffic direction can be determined incorrectly and, consequently, results can be wrong while searching in line crossing archive. The settings of Tracker object should be used experimentally for every case.