WO2020147348A1 - 一种目标跟踪方法及装置、存储介质 - Google Patents
一种目标跟踪方法及装置、存储介质 Download PDFInfo
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20084—Artificial neural networks [ANN]
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30196—Human being; Person
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30241—Trajectory
Definitions
- the present disclosure relates to the field of image processing, but is not limited to the field of image processing, and in particular to a target tracking method and device, and a storage medium.
- Multi-Object-Tracking is an important part of video analysis systems, such as video surveillance systems and self-driving cars.
- the existing multi-target tracking algorithms are mainly divided into two types. One is to directly use multiple features to directly process the trajectory relationship; the other is to perform single-target tracking first, and then process the trajectory correlation relationship, but the above two types of tracking None of the algorithms can accurately track the target.
- This embodiment provides a target tracking method, device, and storage medium.
- This embodiment provides a target tracking method, and the method includes:
- the first target object and the second target are determined according to the predicted target location information, the historical target appearance feature sequence, the current target location information, and the current target appearance feature Target similarity information between objects, including:
- the target position similarity and the target appearance similarity sequence are determined as the target similarity information.
- the determining the similarity information of the occlusion object according to the predicted occlusion object position information, the historical occlusion object appearance feature sequence, the current target position information, and the current target appearance feature includes:
- the position similarity of the occlusion object and the appearance similarity of the occlusion object are determined as the occlusion object similarity information.
- the determining the predicted target location information corresponding to the first target object and the predicted occlusion object location information corresponding to the occlusion object includes:
- a neural network that can realize single target tracking is used to determine the predicted target position information and the predicted occluded object position information.
- the determining the historical target appearance characteristic sequence corresponding to the first target object and the historical occlusion object appearance characteristic sequence corresponding to the occlusion object includes:
- a neural network capable of recognizing pedestrians is used to determine the historical target appearance feature sequence and the historical occlusion object appearance feature sequence.
- the determining the tracking trajectory of the first target object according to the target similarity information and the occluded object similarity information includes:
- the determining the target trajectory association relationship between the first target object and the second target object according to the target similarity information and the occluded object similarity information includes:
- multiple decision scores for multiple trajectory association relationships are determined, and the multiple trajectory association relationships are trajectory associations between the first target object and the second target object to obtain Trajectory relationship;
- the trajectory correlation with the highest decision score is determined from the multiple trajectory correlations as the target trajectory correlation.
- the method After the target trajectory association relationship between the first target object and the second target object is determined according to the target similarity information and the occluded object similarity information, the method also includes:
- the tracking trajectory of the first target object is determined.
- the method After the target trajectory association relationship between the first target object and the second target object is determined according to the target similarity information and the occluded object similarity information, the method also includes:
- the fourth target object is added to the next round of association relationship, so
- the next round of association relationship is an association relationship generated using the current image frame as a historical image frame.
- the method further includes:
- the confidence value corresponding to the first target object is determined.
- the acquiring the predicted target location information according to the confidence value of the third target object includes:
- the number of the first target object and the number of the second target object are both multiple.
- This embodiment provides a target tracking device, and the target tracking device includes:
- the first determining module is configured to determine the predicted target position information corresponding to the first target object and the predicted occlusion object position information corresponding to the occlusion object according to historical image frames adjacent to the current image frame, where the occlusion object is the same as the first A target object closest to the target object; determine the historical target appearance feature sequence corresponding to the first target object and the historical occlusion object appearance characteristic sequence corresponding to the occlusion object according to the historical image frame sequence before the current image frame; For the current image frame, determine current target position information and current target appearance characteristics corresponding to the second target object;
- the second determining module is configured to determine the first target object and the second target according to the predicted target location information, the historical target appearance feature sequence, the current target location information, and the current target appearance feature Target similarity information between objects; determine the occlusion object similarity information according to the predicted occlusion object position information, the historical occlusion object appearance feature sequence, the current target position information, and the current target appearance feature;
- the trajectory tracking module is configured to determine the tracking trajectory of the first target object according to the target similarity information and the occluded object similarity information.
- the first determining module is further configured to determine the target position similarity according to the predicted target position information and the current target position information; and according to the historical target appearance feature sequence and the current target position information;
- the current target appearance feature is used to determine the target appearance similarity sequence; the target position similarity and the target appearance similarity sequence are determined as the target similarity information.
- the first determination module is further configured to determine the position similarity of the occlusion object according to the predicted occlusion object position information and the current target position information; and according to the historical occlusion object appearance feature sequence Determine the appearance similarity of the occlusion object with the current target appearance feature; determine the position similarity of the occlusion object and the appearance similarity of the occlusion object as the occlusion object similarity information.
- the first determining module is further configured to determine the predicted target position information and the predicted occluded object position information by using a neural network that can realize single target tracking.
- the first determining module is further configured to determine the appearance feature sequence of the historical target and the appearance feature sequence of the historical occlusion object by using a neural network capable of recognizing pedestrians.
- the trajectory tracking module is further configured to determine the target trajectory between the first target object and the second target object according to the target similarity information and the occluded object similarity information Association relationship; using the target trajectory association relationship to search for a target associated with the first target object in the second target object to determine the tracking trajectory of the first target object.
- the trajectory tracking module includes: an input submodule and a third determination submodule;
- the input submodule is configured to input the target similarity information and the occluded object similarity information into a preset classifier
- the third determining sub-module is further configured to use the preset classifier to determine multiple decision scores of multiple trajectory association relationships, where the multiple trajectory association relationships are related to the first target object and the The trajectory association relationship between the second target objects is obtained, and the trajectory association relationship with the highest decision score is determined from the multiple trajectory association relationships as the target trajectory association relationship.
- the trajectory tracking module further includes: an acquisition sub-module;
- the acquiring submodule is further configured to, when a third target object not associated with the second target object is determined in the first target object of the target association relationship, according to the A confidence value to obtain the predicted target location information;
- the third determining submodule is further configured to determine the tracking trajectory of the first target object by using the target association relationship and the predicted target position information.
- the device further includes: an adding module;
- the adding module is further configured to add the fourth target object to the second target object in the target association relationship when a fourth target object that is not associated with the first target object is determined
- the next round of association relationships is an association relationship generated using the current image frame as a historical image frame.
- the second determining module is further configured to use the neural network capable of realizing single target tracking to determine the confidence value corresponding to the first target object.
- the acquiring submodule is further configured to acquire the predicted target location information when the confidence value of the third target object meets a preset confidence value.
- the number of the first target object and the number of the second target object are both multiple.
- the target tracking device includes a processor, a memory, and a communication bus.
- the processor executes a running program stored in the memory, the target tracking as described in any of the above is implemented method.
- This embodiment provides a computer-readable storage medium on which a computer program is stored, which is applied to a target tracking device, and when the computer program is executed by a processor, the target tracking method as described in any of the above is implemented.
- This embodiment also provides a computer program product, which can implement the aforementioned target tracking method when the computer program product is executed by a processor.
- the method may include: determining the predicted target position information corresponding to the first target object and the predicted occlusion corresponding to the occluded object according to historical image frames adjacent to the current image frame Object position information; according to the historical image frame sequence before the current image frame, determine the historical target appearance feature sequence corresponding to the first target object and the historical occlusion object appearance characteristic sequence corresponding to the occluded object; determine the second target object corresponding to the current image frame
- the current target location information and the current target appearance features according to the predicted target location information, the historical target appearance feature sequence, the current target location information and the current target appearance characteristics, determine the target similarity information between the first target object and the second target object ; According to the predicted occlusion object position information, historical occlusion object appearance feature sequence, current target position information and current target appearance characteristics, determine the occlusion object similarity information; according to the target similarity information and occlusion object similarity information, determine the first target object Track the trajectory.
- the target tracking device determines the predicted occlusion object position information of the occlusion object according to the historical image frame adjacent to the current image frame, and determines the historical occlusion object appearance of the occlusion object according to the historical image frame sequence before the current image frame
- the feature sequence is combined with the predicted occlusion object position information of the occlusion object and the historical occlusion object appearance feature sequence to determine the tracking trajectory of the first target object in the historical image frame, so that the prediction of the occlusion object is used when tracking the target.
- the position information of the occluded object and the appearance feature sequence of the historical occluded object thereby reducing the influence of the occluded object on target tracking, and improving the accuracy of target tracking.
- FIG. 1 is a flowchart of a target tracking method provided by this embodiment
- FIG. 2 is a schematic flowchart of an exemplary target tracking method provided by this embodiment
- FIG. 3 is a first structural diagram of a target tracking device provided by this embodiment
- FIG. 4 is a second structural diagram of a target tracking device provided by this embodiment.
- This embodiment discloses a target tracking method. As shown in FIG. 1, the method can be applied to various tracking devices and may include:
- the tracking device may include a tracking terminal and/or a tracking server.
- the tracking device may include an image processing device capable of image processing.
- the image processing device may include an image acquisition module (for example, a monocular or multi-lens camera), which can acquire image frames, and use a processor to process the image frames to perform target tracking.
- the image processing device may not collect images by itself but receive image frames from the image acquisition device, and perform image processing on the image frames received from the image acquisition device, thereby achieving target tracking.
- the tracking server may be located on the network side, the image acquisition device may upload the acquired image device to the tracking server, and the tracking server performs target tracking after receiving the image frame.
- the target tracking method may be applied to different application scenarios.
- the tracking device may be a security device.
- Various security control devices are usually installed at the gates of factories, commercial buildings or communities to monitor people and/or vehicles entering the factory or community, the tracking device will analyze the images contained in the video according to the collected video Frame, so as to realize the tracking of people and/or vehicles.
- the target tracking method can also be applied to the field of road traffic.
- Image capture devices that capture the image frames are provided on both sides of the road. After the tracking device obtains these image frames, image analysis is performed to achieve target tracking; The act of statutes of people or vehicles are tracked.
- the current image frame is an image frame being processed at the current moment; the historical image frame is an image frame collected before the current image frame. For example, assuming that the current image frame is an image frame collected at a first time, and the historical image frame is an image frame collected at a second time, the second time is earlier than the first time.
- the target tracking method provided in this embodiment is applicable to a scene where multiple targets are tracked in a video.
- the first target object is a target to be tracked.
- the target in the historical image frame may be a pedestrian, a vehicle, etc., which are specifically selected according to actual conditions, and this embodiment does not make specific limitations.
- the first target object may be one target among multiple targets to be tracked.
- the target tracking device determines the first target object and the occlusion object closest to the first target object in the historical image frame, and then uses a neural network that can achieve single target tracking to determine the predicted target of the first target object Position information and predicted position information of the occluded object.
- the neural network that can realize single-target tracking may use a network composed of single-target tracking algorithms.
- the target tracking device frames the target circumscribed rectangle that includes the first target object in the historical image frame. After that, the target tracking device divides the intersection area obtained by the intersection of any two target circumscribed rectangles by the corresponding two target circumscribed rectangles. The additional target object with the largest value of the combined area obtained by the rectangle union is determined as the occlusion object closest to the first target object.
- the target tracking device obtains an adjacent image before the current image frame as a historical image frame, and uses a single target tracking algorithm to determine the predicted target position information and the occluded object of the first target object in the current image frame Position information of the predicted occlusion object in the current image frame.
- single target tracking algorithms include Siamese Region Proposal Network (Siamese Region Proposal Network) methods, Siamese Fully Convolutional Networks (Siamese Fully Convolutional) methods, etc., which can be specifically selected according to actual conditions, and this embodiment does not do it. Specific restrictions.
- the location information may include coordinate information or latitude and longitude information, which is specifically selected according to actual conditions, and this embodiment does not make specific limitations.
- S102 Determine the historical target appearance feature sequence corresponding to the first target object and the historical occlusion object appearance feature sequence corresponding to the occlusion object according to the historical image frame sequence before the current image frame.
- the target tracking device determines the first target object and the occlusion object closest to the first target object according to the historical image frame sequence before the current image frame, and then uses the pedestrian re-recognition algorithm to determine the first target object Historical target appearance feature sequence and historical occlusion object appearance feature sequence of occlusion object.
- the target tracking device obtains consecutive multiple frames of images before the current image frame as a sequence of historical image frames, and uses a neural network capable of recognizing pedestrians to determine the historical target appearance feature sequence and the occluded object of the first target object Sequence of appearance characteristics of historical occlusion objects.
- the number of features in the historical target appearance feature sequence and the number of features in the historical occlusion object appearance feature sequence correspond one-to-one with the frame number of the historical image frame sequence.
- the specific selection is made according to the actual situation. The examples do not make specific restrictions.
- the neural network that can realize pedestrian re-identification may use a network composed of pedestrian re-identification algorithms.
- the pedestrian re-identification algorithm includes the Inception-v4 model.
- the number of first target objects is multiple.
- S101 and S102 are two parallel steps before S103, and there is no absolute timing relationship between S101 and S102, and the selection is specifically based on actual conditions. This embodiment does not limit the execution order of the two.
- the target tracking device After the target tracking device determines the predicted target location information and historical target appearance feature sequence corresponding to the first target object, and the predicted occlusion object location information and historical occlusion object appearance feature sequence corresponding to the occluded object, the target tracking device according to the current image frame, Determine the current target location information and the current target appearance feature corresponding to the second target object.
- the target tracking device determines the second target object and the current target location information and current target appearance characteristics corresponding to the second target object according to the current image frame.
- the first target object and the second target object are at least partially matched, that is, at least part of the targets in the first target object matches at least part of the targets in the second target object.
- S104 Determine target similarity information between the first target object and the second target object according to the predicted target location information, the historical target appearance feature sequence, the current target location information, and the current target appearance feature.
- the target tracking device After the target tracking device determines the current target location information and current target appearance characteristics corresponding to the second target object in the current image frame, the target tracking device predicts target location information, historical target appearance feature sequences, current target location information, and current target location information.
- the target appearance feature determines the target similarity information between the first target object and the second target object.
- the target tracking device determines the target location similarity according to the predicted target location information and the current target location information; the target tracking device determines the target appearance similarity sequence according to the historical target appearance feature sequence and the current target appearance feature; then, the target The tracking device determines the target position similarity and the target appearance similarity sequence as the target similarity information between the first target object and the second target object.
- the target tracking device calculates the similarity between the predicted target location information and the current target location information to obtain the target location similarity; the target tracking device calculates the similarity between the historical target appearance feature sequence and the current target appearance feature to obtain the target Appearance similarity sequence.
- S105 Determine the similarity information of the occluded object according to the predicted occluded object position information, the historical occluded object appearance feature sequence, the current target position information, and the current target appearance feature.
- the target tracking device After the target tracking device determines the current target location information and the current target appearance feature corresponding to the second target object in the current image frame, the target tracking device predicts the occluded object location information, the historical occluded object appearance feature sequence, and the current target location information Determine the similarity information of the occluded object based on the appearance characteristics of the current target.
- the target tracking device determines the position similarity of the occluded object according to the predicted occluded object position information and the current target position information; the target tracking device determines the appearance similarity of the occluded object according to the historical occluded object appearance feature sequence and the current target appearance feature; After that, the target tracking device determines the position similarity of the occlusion object and the appearance similarity of the occlusion object as the information of the occlusion object similarity.
- the target tracking device calculates the similarity between the predicted occluded object position information and the current target position information to obtain the occluded object position similarity; the target tracking device calculates the similarity between the historical occluded object appearance feature sequence and the current target appearance feature , Get the similarity of the appearance of the occluded object.
- the target position similarity is the value of the intersection area of the target circumscribed rectangle divided by the combined area
- the target appearance similarity sequence is the cosine included angle of the appearance feature
- the calculation process of the position similarity of the occlusion object is the same as the calculation process of the target position similarity, and the calculation process of the appearance similarity of the occlusion object and the sequence of the target appearance similarity are the same, and will not be repeated here.
- S104 and S105 are two parallel steps after S103 and before S106. There is no absolute timing relationship between S104 and S105. The specific selection is based on actual conditions. This embodiment does not limit the execution of both order.
- S106 Determine the tracking trajectory of the first target object according to the target similarity information and the occluded object similarity information.
- the target tracking device determines the tracking trajectory of the first target object according to the target similarity information and the occluded object similarity information.
- the target tracking device determines the target trajectory association relationship between the first target object and the second target object according to the target similarity information and the occluded object similarity information; the target tracking device uses the target trajectory association relationship in the second Find the target associated with the first target object in the target object to determine the tracking trajectory of the first target object.
- the target tracking device inputs the target similarity information and the occluded object similarity information into a preset classifier; then, the preset classifier is used to determine multiple decision scores for multiple trajectory association relationships, among which multiple trajectories
- the association relationship is the trajectory association relationship obtained by the trajectory association between the first target object and the second target object; the target tracking device determines the trajectory association relationship with the highest decision score from the multiple trajectory association relationships, as the target trajectory association relationship .
- the preset classifier outputs the decision scores between each associated target in the multiple trajectory association relationships, and then superimposes the decision scores in each trajectory association relationship to obtain the corresponding trajectory association relationship Decision scores, so far, multiple decision scores with multiple trajectory relationships have been obtained.
- the target tracking device uses a preset trajectory correlation algorithm to perform trajectory correlation between the first target object in the historical image frame and the second target object in the current image frame to obtain the difference between the first target object and the second target object.
- a preset trajectory correlation algorithm to perform trajectory correlation between the first target object in the historical image frame and the second target object in the current image frame to obtain the difference between the first target object and the second target object.
- the classifier adopts a gradient enhancement decision tree model.
- the preset trajectory correlation algorithm is the weighted maximum matching algorithm of the bipartite graph, that is, the minimum cost maximum flow algorithm.
- the target tracking device determines the target associated with the second target object in the first target object in the target association relationship.
- the target tracking device determines the target associated with the second target object in the first target object in the target association relationship.
- the target tracking device obtains predicted target position information according to the confidence value of the third target object, and then the target tracking device uses the target association The relationship and predicted target location information determine the tracking trajectory of the first target object.
- the target tracking device determines a third target object that is not associated with the second target object in the first target object
- the target tracking device determines that the third target object in the historical image frame is not in the current image frame. Appearing in.
- the reason why the target tracking device determines that the third target object does not appear in the current image frame is that the confidence value of the third target object does not meet the preset confidence threshold.
- the target tracking device predicts the position of the third target object in the current image frame according to the predicted target position information corresponding to the third target object.
- the target tracking device determines the target associated with the first target object in the second target object in the target association relationship.
- the target tracking device determines the target associated with the first target object in the second target object in the target association relationship.
- the target tracking device adds the fourth target object to the next round of association relationship, where the next round of association relationship is an association relationship generated using the current image frame as the historical image frame.
- the target tracking device determines a fourth target object that is not associated with the first target object in the second target object, it represents that the fourth target object is a newly-added target object.
- the target tracking device Four target objects for target tracking.
- the matched target objects in the first target object and the second target object form a two-tuple
- the unmatched target objects in the first target object and the second target object form a one-tuple
- the target tracking device searches for the target object in the second target object from the tuple as a fourth target object that is not associated with the first target object; the target tracking device searches for the target object in the first target object from the tuple as A third target object not associated with the second target object.
- the target tracking device uses a single target tracking algorithm to separately calculate the confidence value corresponding to the first target object and the predicted target location information.
- the target tracking device compares the confidence value corresponding to the third target object with a preset confidence value, and when the confidence value corresponding to the third target object meets the preset confidence value, the target tracking device obtains the prediction Target location information.
- the single-target tracking algorithm, pedestrian re-recognition algorithm, preset classifier, and preset trajectory association algorithm in this embodiment are all replaceable algorithms, and the specific selection is based on actual conditions, and this embodiment does not specifically The limit.
- the target tracking device determines the action trajectories of different target objects in the video from the target association relationship, and can then track the target objects.
- the target tracking device determines the predicted occlusion object position information of the occlusion object according to the historical image frames adjacent to the current image frame, and determines the historical occlusion object appearance characteristics of the occlusion object according to the historical image frame sequence before the current image frame Sequence, and fused the predicted occluded object position information of the occluded object and the historical occluded object appearance feature sequence to determine the tracking trajectory of the first target object in the historical image frame, so that during target tracking, the predicted occlusion of the occluded object is used Object position information and historical occluded object appearance feature sequences, thereby reducing the impact of occluded objects on target tracking, and improving the accuracy of target tracking.
- This embodiment provides a target tracking device 1.
- the device may include:
- the first determining module 10 is configured to determine the predicted target position information corresponding to the first target object and the predicted occlusion object position information corresponding to the occlusion object according to the historical image frames adjacent to the current image frame, and the occlusion object is The first target object is the closest target; according to the historical image frame sequence before the current image frame, the historical target appearance feature sequence corresponding to the first target object and the historical occlusion object appearance characteristic sequence corresponding to the occlusion object are determined; Describe the current image frame, determine the current target position information and the current target appearance characteristics corresponding to the second target object;
- the second determining module 11 is configured to determine the first target object and the second target object according to the predicted target location information, the historical target appearance feature sequence, the current target location information, and the current target appearance feature Target similarity information between target objects; determine the occlusion object similarity information according to the predicted occlusion object position information, the historical occlusion object appearance feature sequence, the current target position information, and the current target appearance feature;
- the trajectory tracking module 12 is configured to determine the tracking trajectory of the first target object according to the target similarity information and the occluded object similarity information.
- the first determining module 10 is further configured to determine the target position similarity according to the predicted target position information and the current target position information; according to the historical target appearance feature sequence and The current target appearance feature determines the target appearance similarity sequence; the target position similarity and the target appearance similarity sequence are determined as the target similarity information.
- the first determining module 10 is further configured to determine the position similarity of the occlusion object according to the predicted occlusion object position information and the current target position information; and according to the historical appearance of the occlusion object
- the feature sequence and the current target appearance feature determine the appearance similarity of the occlusion object; determine the position similarity of the occlusion object and the appearance similarity of the occlusion object as the occlusion object similarity information.
- the first determining module 10 is further configured to determine the predicted target position information and the predicted occluded object position information by using a neural network that can realize single target tracking.
- the first determining module 10 is further configured to determine the historical target appearance feature sequence and the historical occlusion object appearance feature sequence using a neural network that can realize pedestrian re-recognition.
- the trajectory tracking module 12 is further configured to determine the difference between the first target object and the second target object according to the target similarity information and the occluded object similarity information.
- Target trajectory association relationship using the target trajectory association relationship to search for a target associated with the first target object in the second target object to determine the tracking trajectory of the first target object.
- the trajectory tracking module 12 includes: an input sub-module 120 and a third determination sub-module 121;
- the input submodule 120 is configured to input the target similarity information and the occluded object similarity information into a preset classifier
- the third determining sub-module 121 is further configured to use the preset classifier to determine multiple decision scores for multiple trajectory association relationships, where the multiple trajectory association relationships are related to the first target object and the The trajectory association relationship between the second target objects is obtained, and the trajectory association relationship with the highest decision score is determined from the multiple trajectory association relationships as the target trajectory association relationship.
- the trajectory tracking module 12 further includes: an acquisition sub-module 122;
- the acquiring submodule 122 is further configured to, when a third target object not associated with the second target object is determined in the first target object of the target association relationship, according to the third target object Obtain the predicted target location information;
- the third determining submodule 121 is further configured to determine the tracking trajectory of the first target object by using the target association relationship and the predicted target position information.
- the device further includes: an adding module 13;
- the adding module 13 is further configured to add the fourth target object when a fourth target object not associated with the first target object is determined in the second target object of the target association relationship
- the next round of association relationships is an association relationship generated by using the current image frame as a historical image frame.
- the second determining module 11 is further configured to use the neural network that can realize single target tracking to determine the confidence value corresponding to the first target object.
- the obtaining submodule 122 is further configured to obtain the predicted target location information when the confidence value of the third target object meets a preset confidence value.
- the number of the first target object and the number of the second target object are both multiple.
- Fig. 4 is a schematic diagram 1 of the composition structure of the target tracking device 1 proposed in this embodiment.
- the target tracking device 1 of this embodiment includes: ⁇ 14, memory 15, and communication bus 16.
- the first determining module 10, the second determining module 11, the trajectory tracking module 12, the input sub-module 120, the third determining sub-module 121, the acquiring sub-module 122, and the adding module 13 are composed of a processor 1 realize.
- the above-mentioned processor 14 may be an application specific integrated circuit (ASIC, Application Specific Integrated Circuit), a digital signal processor (DSP, Digital Signal Processor), or a digital signal processing image display device (DSPD, Digital Signal Processor). At least one of Signal Processing Device, Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA, Field Programmable Gate Array), CPU, controller, microcontroller, and microprocessor . It can be understood that for different devices, the electronic devices used to implement the above-mentioned processor functions may also be other, which is not specifically limited in this embodiment.
- ASIC Application Specific Integrated Circuit
- DSP Digital Signal Processor
- DSPD Digital Signal Processing image display device
- PLD Programmable Logic Device
- FPGA Field Programmable Gate Array
- CPU controller
- microcontroller microcontroller
- microprocessor microprocessor
- the above-mentioned communication bus 16 is used to realize the connection and communication between the processor 14 and the memory 15; the above-mentioned processor 14 is used to execute the operating program stored in the memory 15 to implement the method as in the above-mentioned embodiment .
- This embodiment provides a computer-readable storage medium.
- the above-mentioned computer-readable storage medium stores one or more programs, and the above-mentioned one or more programs can be executed by one or more processors and applied to a target tracking device.
- the program is executed by the processor, the method as in the above embodiment is realized.
- This embodiment also provides a computer program product, which can realize the target tracking method of any of the foregoing technical solutions when the computer program product is executed by a processor.
- the methods in the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware, but in many cases the former is better Implementation.
- the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product.
- the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make an image display device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present disclosure.
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Abstract
Description
Claims (27)
- 一种目标跟踪方法,其中,所述方法包括:根据与当前图像帧相邻的历史图像帧,确定第一目标对象对应的预测目标位置信息和遮挡对象对应的预测遮挡对象位置信息,所述遮挡对象为与所述第一目标对象最接近的目标;根据所述当前图像帧之前的历史图像帧序列,确定所述第一目标对象对应的历史目标外观特征序列和遮挡对象对应的历史遮挡对象外观特征序列;根据所述当前图像帧,确定第二目标对象对应的当前目标位置信息和当前目标外观特征;根据所述预测目标位置信息、所述历史目标外观特征序列、所述当前目标位置信息和所述当前目标外观特征,确定所述第一目标对象和所述第二目标对象之间的目标相似度信息;根据所述预测遮挡对象位置信息、所述历史遮挡对象外观特征序列、所述当前目标位置信息和所述当前目标外观特征,确定遮挡对象相似度信息;根据所述目标相似度信息和所述遮挡对象相似度信息,确定所述第一目标对象的跟踪轨迹。
- 根据权利要求1所述的方法,其中,所述根据所述预测目标位置信息、所述历史目标外观特征序列、所述当前目标位置信息和所述当前目标外观特征,确定所述第一目标对象和所述第二目标对象之间的目标相似度信息,包括:根据所述预测目标位置信息和所述当前目标位置信息,确定所述目标位置相似度;根据所述历史目标外观特征序列和所述当前目标外观特征,确定所述目标外观相似度序列;将所述目标位置相似度和所述目标外观相似度序列确定为所述目标相似度信息。
- 根据权利要求1所述的方法,其中,所述根据所述预测遮挡对象位置信息、所述历史遮挡对象外观特征序列、所述当前目标位置信息和所述当前目标外观特征,确定遮挡对象相似度信息,包括:根据所述预测遮挡对象位置信息和所述当前目标位置信息,确定所述遮挡对象位置相似度;根据所述历史遮挡对象外观特征序列和所述当前目标外观特征,确定所述遮挡对象外观相似度;将所述遮挡对象位置相似度和所述遮挡对象外观相似度确定为所述遮挡对象相似度信息。
- 根据权利要求1所述的方法,其中,所述确定第一目标对象对应的预测目标位置信息和遮挡对象对应的预测遮挡对象位置信息,包括:利用可实现单目标跟踪的神经网络,确定所述预测目标位置信息和所述预测遮挡对象位置信息。
- 根据权利要求1所述的方法,其中,所述确定所述第一目标对象对应的历史目标外观特征序列和遮挡对象对应的历史遮挡对象外观特征序列,包括:利用可实现行人重识别的神经网络,确定所述历史目标外观特征序列和所述历史遮挡对象外观特征序列。
- 根据权利要求1所述的方法,其中,所述根据所述目标相似度信息和所述遮挡对象相似度信息,确定所述第一目标对象的跟踪轨迹,包括:根据所述目标相似度信息和所述遮挡对象相似度信息,确定所述第一目标对象和所述第二目标对象之间的目标轨迹关联关系;利用所述目标轨迹关联关系,在所述第二目标对象中查找与所述第一目标对象关联的目标,以确定所述第一目标对象的跟踪轨迹。
- 根据权利要求6所述的方法,其中,所述根据所述目标相似度信息和所述遮挡对象相似度信息,确定所述第一目标对象和所述第二目标对象之间的目标轨迹关联关系,包括:将所述目标相似度信息和所述遮挡对象相似度信息,输入预设分类器;利用所述预设分类器,确定出多种轨迹关联关系的多个决策分数,所述多种轨迹关联关系为对所述第一目标对象和所述第二目标对象之间进行轨迹关联,得到的轨迹关联关系;从所述多种轨迹关联关系中确定出决策分数最高的轨迹关联关系,作为所述目标轨迹关联关系。
- 根据权利要求6所述的方法,其中,所述根据所述目标相似度信息和所述遮挡对象相似度信息,确定出所述第一目标对象和所述第二目标对象之间的目标轨迹关联关系之后,所述方法还包括:当在所述目标关联关系的所述第一目标对象中确定出与所述第二目标对象不关联的第三目标对象的情况下,根据所述第三目标对象的置信度值,获取所述预测目标位置信息;利用所述目标关联关系和所述预测目标位置信息,确定出所述第一目 标对象的跟踪轨迹。
- 根据权利要求6所述的方法,其中,所述根据所述目标相似度信息和所述遮挡对象相似度信息,确定出所述第一目标对象和所述第二目标对象之间的目标轨迹关联关系之后,所述方法还包括:当在所述目标关联关系的所述第二目标对象中确定出与所述第一目标对象不关联的第四目标对象的情况下,将所述第四目标对象添加至下一轮关联关系中,所述下一轮关联关系为以所述当前图像帧为历史图像帧生成的关联关系。
- 根据权利要求4所述的方法,其中,所述方法还包括:利用所述可实现单目标跟踪的神经网络,确定所述第一目标对象对应的置信度值。
- 根据权利要求8所述的方法,其中,所述根据所述第三目标对象的置信度值,获取所述预测目标位置信息,包括:在所述第三目标对象的置信度值满足预设置信度值的情况,获取所述预测目标位置信息。
- 根据权利要求1-11任一项所述的方法,其中,所述第一目标对象的个数和所述第二目标对象的个数均为多个。
- 一种目标跟踪装置,其中,所述目标跟踪装置包括:第一确定模块,配置为根据与当前图像帧相邻的历史图像帧,确定第一目标对象对应的预测目标位置信息和遮挡对象对应的预测遮挡对象位置信息,所述遮挡对象为与所述第一目标对象最接近的目标;根据所述当前图像帧之前的历史图像帧序列,确定所述第一目标对象对应的历史目标外观特征序列和遮挡对象对应的历史遮挡对象外观特征序列;根据所述当前图像帧,确定第二目标对象对应的当前目标位置信息和当前目标外观特征;第二确定模块,用于根据所述预测目标位置信息、所述历史目标外观特征序列、所述当前目标位置信息和所述当前目标外观特征,确定所述第一目标对象和所述第二目标对象之间的目标相似度信息;根据所述预测遮挡对象位置信息、所述历史遮挡对象外观特征序列、所述当前目标位置信息和所述当前目标外观特征,确定遮挡对象相似度信息;轨迹跟踪模块,用于根据所述目标相似度信息和所述遮挡对象相似度信息,确定出所述第一目标对象的跟踪轨迹。
- 根据权利要求13所述的装置,其中,所述第一确定模块,还用于根据所述预测目标位置信息和所述当前目标位置信息,确定出所述目标位置相似度;根据所述历史目标外观特征序列和所述当前目标外观特征,确定出所述目标外观相似度序列;将所述目 标位置相似度和所述目标外观相似度序列确定为所述目标相似度信息。
- 根据权利要求13所述的装置,其中,所述第一确定模块,还用于根据所述预测遮挡对象位置信息和所述当前目标位置信息,确定出所述遮挡对象位置相似度;根据所述历史遮挡对象外观特征序列和所述当前目标外观特征,确定出所述遮挡对象外观相似度;将所述遮挡对象位置相似度和所述遮挡对象外观相似度确定为所述遮挡对象相似度信息。
- 根据权利要求13所述的装置,其中,所述第一确定模块,还用于利用可实现单目标跟踪的神经网络,确定所述预测目标位置信息和所述预测遮挡对象位置信息。
- 根据权利要求13所述的装置,其中,所述第一确定模块,还用于利用可实现行人重识别的神经网络,确定所述历史目标外观特征序列和所述历史遮挡对象外观特征序列。
- 根据权利要求13所述的装置,其中,所述轨迹跟踪模块,还用于根据所述目标相似度信息和所述遮挡对象相似度信息,确定出所述第一目标对象和所述第二目标对象之间的目标轨迹关联关系;利用所述目标轨迹关联关系,在所述第二目标对象中查找与所述第一目标对象关联的目标,以确定出所述第一目标对象的跟踪轨迹。
- 根据权利要求18所述的装置,其中,所述轨迹跟踪模块包括:输入子模块和第三确定子模块;所述输入子模块,用于将所述目标相似度信息和所述遮挡对象相似度信息,输入预设分类器;所述第三确定子模块,还用于利用所述预设分类器,确定出多种轨迹关联关系的多个决策分数,所述多种轨迹关联关系为对所述第一目标对象和所述第二目标对象之间进行轨迹关联,得到的轨迹关联关系;从所述多种轨迹关联关系中确定出决策分数最高的轨迹关联关系,作为所述目标轨迹关联关系。
- 根据权利要求19所述的装置,其中,所述轨迹跟踪模块还包括:获取子模块;所述获取子模块,还用于当在所述目标关联关系的所述第一目标对象中确定出与所述第二目标对象不关联的第三目标对象时,根据所述第三目标对象的置信度值,获取所述预测目标位置信息;所述第三确定子模块,还用于利用所述目标关联关系和所述预测目标位置信息,确定出所述第一目标对象的跟踪轨迹。
- 根据权利要求18所述的装置,其中,所述装置还包括:添加模块;所述添加模块,还用于当在所述目标关联关系的所述第二目标对象中确定出与所述第一目标对象不关联的第四目标对象时,将所述第四目标对象添加至下一轮关联关系中,所述下一轮关联关系为以所述当前图像帧为历史图像帧生成的关联关系。
- 根据权利要求16所述的装置,其中,所述第二确定模块,还用于利用所述可实现单目标跟踪的神经网络,确定所述第一目标对象对应的置信度值。
- 根据权利要求20所述的装置,其中,所述获取子模块,还用于当所述第三目标对象的置信度值满足预设置信度值时,获取所述预测目标位置信息。
- 根据权利要求13-23任一项所述的装置,其中,所述第一目标对象的个数和所述第二目标对象的个数均为多个。
- 一种目标跟踪装置,其中,所述目标跟踪装置包括:处理器、存储器及通信总线,所述处理器执行所述存储器中存储的运行程序时实现如权利要求1-12任一项所述的方法。
- 一种计算机可读存储介质,其上存储有计算机程序,应用于目标跟踪装置,其中,该计算机程序被处理器执行时实现如权利要求1-12任一项所述的方法。
- 一种计算机程序产品,所述计算机程序产品被处理器执行时,够实现权利要求1-12中任意一项所述的方法。
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| CN109816701A (zh) | 2019-05-28 |
| SG11202007604XA (en) | 2020-09-29 |
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| TW202029129A (zh) | 2020-08-01 |
| JP6944598B2 (ja) | 2021-10-06 |
| TWI715320B (zh) | 2021-01-01 |
| KR102444769B1 (ko) | 2022-09-19 |
| CN109816701B (zh) | 2021-07-27 |
| JP2021514498A (ja) | 2021-06-10 |
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