Tracklets

Tracklets are produced by the ObjectTracker node. They provide tracking information of the tracked objects.

Examples of functionality

• Object tracker on RGB

• Spatial object tracker on RGB

• Object tracker on video

Reference

Python

C++

class depthai.Tracklets

Tracklets message. Carries object tracking information.

getData(self: object) → numpy.ndarray[numpy.uint8]

Get non-owning reference to internal buffer

Returns

Reference to internal buffer

getRaw(self: depthai.ADatatype) → depthai.RawBuffer

getSequenceNum(self: depthai.Tracklets) → int

Retrieves image sequence number

getTimestamp(self: depthai.Tracklets) → datetime.timedelta

Retrieves image timestamp related to dai::Clock::now()

getTimestampDevice(self: depthai.Tracklets) → datetime.timedelta

Retrieves image timestamp directly captured from device’s monotonic clock, not synchronized to host time. Used mostly for debugging

setData(*args, **kwargs)

Overloaded function.

1. setData(self: depthai.Buffer, arg0: List[int]) -> None

Parameter data:

Copies data to internal buffer

2. setData(self: depthai.Buffer, arg0: numpy.ndarray[numpy.uint8]) -> None

Parameter data:

Copies data to internal buffer

setSequenceNum(self: depthai.Tracklets, arg0: int) → depthai.Tracklets

Retrieves image sequence number

setTimestamp(self: depthai.Tracklets, arg0: datetime.timedelta) → depthai.Tracklets

Sets image timestamp related to dai::Clock::now()

setTimestampDevice(self: depthai.Tracklets, arg0: datetime.timedelta) → depthai.Tracklets

Sets image timestamp related to dai::Clock::now()

property tracklets

Retrieve data for Tracklets.

Returns

Vector of object tracker data, carrying tracking information.

class dai::Tracklets : public dai::Buffer

Tracklets message. Carries object tracking information.

Public Functions

Tracklets()

Construct Tracklets message.

Tracklets(std::shared_ptr<RawTracklets> ptr)

~Tracklets() = default

std::chrono::time_point<std::chrono::steady_clock, std::chrono::steady_clock::duration> getTimestamp() const

Retrieves image timestamp related to dai::Clock::now()

std::chrono::time_point<std::chrono::steady_clock, std::chrono::steady_clock::duration> getTimestampDevice() const

Retrieves image timestamp directly captured from device’s monotonic clock, not synchronized to host time. Used mostly for debugging

int64_t getSequenceNum() const

Retrieves image sequence number

Tracklets &setTimestamp(std::chrono::time_point<std::chrono::steady_clock, std::chrono::steady_clock::duration> timestamp)

Sets image timestamp related to dai::Clock::now()

Tracklets &setTimestampDevice(std::chrono::time_point<std::chrono::steady_clock, std::chrono::steady_clock::duration> timestamp)

Sets image timestamp related to dai::Clock::now()

Tracklets &setSequenceNum(int64_t sequenceNum)

Retrieves image sequence number

Public Members

std::vector<Tracklet> &tracklets

Retrieve data for Tracklets.

Return

Vector of object tracker data, carrying tracking information.

Private Functions

std::shared_ptr<RawBuffer> serialize() const override

Private Members

RawTracklets &rawdata

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