Object Tracker Element

Modified on 2018/08/29 03:54 by Administrator Categorized as Elements, Object Tracking
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== Summary ==
{s:Element Info Panel
| title=Object Tracker
| category=Object Tracking
| icon=[image|Element Icon|{UP(Object-Tracker-Element)}Object-Tracker-Element-Icon.png]
| author= OkazoLab
| addin= Object Tracking
| scope= Parent event
| usage= Stimulus screen
| ownsnippets= None
}
== Properties ==
{|
|-
! Name
! Description                              
! Constraints
! Type
! On<br/>runtime<br/>change
|-
| colspan="5" bgcolor="#AADDDDD" | Settings
|-
| Detection Pace        
| Defines the minimal pace (in ms) of the auto-detection passes in response to visual changes in the parent event. If the visual changes are frequent, e.g. due to playing movie, the pace should not be less than the detection processing time.        
| {s:atNormal}        
| Double        
|  
|-
| Downscale Ratio        
| Defines the percentage of image downscaling, which is applied on before object detection. Smaller ratio leads to faster processing time in an exchange for worse positional accuracy.        
| {s:atNormal}        
| Double        
|  
|-
| Confidence Threshold        
| Defines the confidence threshold that marks the successful object detection. If the detection results in lower confidence, the detected size and position are rest to zeros        
| {s:atNormal}        
| Double        
|  
|-
| Scale Adaptation        
| Defines whether adaptation to target's size changes is included into the object detection process. If true, the object detection also checks the zoomed-in and zoomed-out versions of the target object for a better match. If a change in the target size is detected, the element's frame size is adjusted too. Enabling the scale adaptation increase the processing time by 3 times.        
| {s:atNormal}        
| Boolean        
|  
|-
| Scale Adaptation Step        
| Defines the percentage difference for the zoomed-in and zoomed-out versions of the target object. The zoomed versions are utilized when the scale adaptation is enabled.        
| {s:atNormal}        
| Double        
|  
|-
| Grab Object Now        
| Represents the command that grabs the target for object detection. The target object is extracted from the event surface, as an area below the current element's viewport        
| {s:atRuntimeAction}        
| Boolean        
|  
|-
| Border Visible        
| Defines whether a border is shown around the element's viewport at runtime        
| {s:atNormal}        
| Boolean        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Runtime Status
|-
| Current Scale        
| Returns the last detected scale of the target object.        
| {s:atNormal}        
| Double        
|  
|-
| Detection Confidence        
| Returns the confidence score (%) of the last detection pass.        
| {s:atStatus}        
| Double        
|  
|-
| Processing Time        
| Returns the time spend by the last detection pass.        
| {s:atStatus}        
| clTime        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Detection
|-
| Test Detection Now        
| Runs an emulation of the detection pass on the current event surface.        
| {s:atDesign}        
| Boolean        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Trajectory Control
|-
| Reset Trajectory Now        
|         
| {s:atRuntimeAction}        
| Boolean        
|  
|-
| Save Trajectory Now        
| Assign a filename to save the object trajectory recorded at runtime        
| {s:atRuntimeAction}        
| String        
|  
|-
| Preview Trajectory        
|         
| {s:atRuntimeAction}        
| Boolean        
|  
|-
| Export To Library        
|         
| {s:atRuntimeAction}        
| Boolean        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Visual Appearance
|-
| Alpha Masking        
| Defines, whether the visual content is used to create an opacity mask on the event surface. If masking is on, the content's pixel luminance (or, its inverse) defines transparency within element's viewport. The alpha masking allows, for example, create transparent holes on the event surface.        
| {s:atDesign}        
| Int32        
|  
|-
| AntiAliasing        
| if true, the rendered content will be antialiased for smoother visual appeariance. If false, rendering will be authentic to its source, e.g. a bitmap.        
| {s:atNormal}        
| Boolean        
|  
|-
| Position        
| Defines a position of the rendering viewport on the screen        
| {s:atNormal}        
| clPoint        
|  
|-
| Size        
| Defines a size of the element's rendering viewport on the screen        
| {s:atNormal}        
| clSize        
|  
|-
| Z Order        
| Indicates Z Order of the element on the given event        
| {s:atStatus}        
| Int32        
|  
|-
| Pivot Point        
| Defines alignment of the pivot point (or, element's position) relative to element's rendering area. The pivot point sets the center of element's rotation and scale directions.        
| {s:atNormal}        
| stAlig..        
|  
|-
| Visible        
| Defines whether the element is visible        
| {s:atNormal}        
| Boolean        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Effects
|-
| Transparent Color        
| The color of the original pixels of rendered content that will be set as transparent        
| {s:atNormal}        
| stColor        
|  
|-
| Transparent Tolerance        
| Tolerance ratio for choosing colors that become transparent. Zero means that effect is not applied, 1 denotes that all colors will become trasparent        
| {s:atNormal}        
| Int32        
|  
|-
| Color Mask        
| Produces a multiplicative combination of the original pixels
and the selected mask color (except the alpha channel).
 The effect emulates a look through a colored glass.
 White or transparent mask color dont change the original pixels        
| {s:atNormal}        
| stColor        
|  
|-
| Opacity        
| Opacity of the rendered content        
| {s:atNormal}        
| Int32        
|  
|-
| Contrast        
| Contrast of the rendered content        
| {s:atNormal}        
| Int32        
|  
|-
| Brightness        
| Brightness the rendered content        
| {s:atNormal}        
| Int32        
|  
|-
| Saturation        
| Saturation of the rendered content        
| {s:atNormal}        
| Double        
|  
|-
| Pixelation        
| Pixelation of the rendered content        
| {s:atNormal}        
| Int32        
|  
|-
| Blurring        
| The radius used in the gaussian blur of rendered content, as a pixel-based factor. The default is 0 which means no blurring.        
| {s:atNormal}        
| Int32        
|  
|-
| Scrambling        
|         
| {s:atNormal}        
| Double        
|  
|-
| Scrambling Grid Size        
| Defines a size of the scrambling grid        
| {s:atNormal}        
| clSize        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Positional Jitter
|-
| Reset Jitter Now        
| Runtime command that resets the positional jitter.        
| {s:atRuntimeAction}        
| Boolean        
|  
|-
| Current Jitter        
| Returns the current jitter        
| {s:atStatus}        
| clPoint        
|  
|-
| Jitter Range        
| Defines a possible range for the random jitter. The range is centered to the position of the element.        
| {s:atNormal}        
| clSize        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Control
|-
| Is Enabled        
| If set to false the element is completely omitted when the experiment is run        
| {s:atDesign}        
| Boolean        
|  
|-
| Title        
| Title of the element        
| {s:atDesign}        
| String        
|  
|-            
|}
== ==
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'''Object Tracker Element''' performs automatic tracking of selected visual object on the event surface. The tracking process returns the object position and size over time. The results can be used in runtime, e.g. to move the ROI area, or recorded as a time-line trajectory.<br><br>
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