Monitor device and dynamic object monitoring method
A dynamic object monitoring method including, setting types of monitored zones of a monitored region in a video frame captured by a network camera and setting device parameters and sensitivity values corresponding to each of the monitored zones. Analyzing the predicted macro blocks of a current shooting frame retrieved by the network camera according to the prediction mode of the MPEG-4 encoding algorithm. Counting a number of the predicted macro blocks of each of the monitored zones. Determining whether a number of predicted macro blocks of a monitored zone is equal to or greater than a corresponding preset value. A monitored zone is determined where a dynamic object is located. The device parameters of the network camera as device parameters of the monitored zone are adjusted where the dynamic object is located for recording.
1. A monitor device, which is controlling a network camera, the monitor device comprising:
at least one processor;
a storage system; and
one or more programs that are stored in the storage system and executed by the at least one processor, the one or more programs comprising instructions for:
setting types of monitored zones of a monitored region in a video frame captured by a network camera;
setting device parameters and sensitivity values corresponding to each of the monitored zones, wherein the sensitivity values refer to the quantity of preset values of predicted macro blocks in a monitored zone according to a prediction mode of the fourth generation motion picture expert group (MPEG-4) standard; wherein the device parameters include focal length and encoding frames of the network camera, when the dynamic object is located in a safe zone, the device parameters for the network camera are configured as the minimum encoding frames and the maximum focal length for recording, when the dynamic object is located in a warning zone, the device parameters for the network camera are configured as higher encoding frames and automatic focusing on the dynamic object is activated for recording, and when the dynamic object is located in a alarm zone, the device parameters for the network camera are configured as the maximum encoding frames, automatic focusing for the dynamic object is activated, and the maximum hardware performance is enabled for recording;
analyzing the predicted macro blocks of a current shooting frame retrieved by the network camera according to the prediction mode of the MPEG-4 encoding algorithm;
counting a number of the predicted macro blocks of each of the monitored zones;
determining whether a number of predicted macro blocks of a monitored zone is equal to or greater than a corresponding preset value;
when the number of predicted macro blocks of at least one monitored zone is equal to or greater than the corresponding preset value, determine a monitored zone where a dynamic object is located; and
adjusting the device parameters of the network camera as device parameters of the monitored zone where the dynamic object is located for recording.
2. The monitor device as claimed in claim 1 , further comprising instructions for:
determining the dynamic object is not existing in the monitored zone when the number of predicted macro blocks of at each of the monitored zones is less than the corresponding preset value.
3. The monitor device as claimed in claim 1 , wherein the prediction mode include 4 by 4 predicted macro blocks and 16 by 16 predicted macro blocks.
4. A dynamic object monitoring method, executable by a processor of a server, the method comprising:
setting types of monitored zones of a monitored region in a video frame captured by a network camera;
setting device parameters and sensitivity values corresponding to each of the monitored zones, wherein the sensitivity values refer to the quantity of preset values of predicted macro blocks in a monitored zone according to a prediction mode of the fourth generation motion picture expert group (MPEG-4) standard; wherein the device parameters include focal length and encoding frames of the network camera, when the dynamic object is located in a safe zone, the device parameters for the network camera are configured as the minimum encoding frames and the maximum focal length for recording, when the dynamic object is located in a warning zone, the device parameters for the network camera are configured as higher encoding frames and automatic focusing on the dynamic object is activated for recording, and when the dynamic object is located in a alarm zone, the device parameters for the network camera are configured as the maximum encoding frames, automatic focusing for the dynamic object is activated, and the maximum hardware performance is enabled for recording;
analyzing the predicted macro blocks of a current shooting frame retrieved by the network camera according to the prediction mode of the MPEG-4 encoding algorithm;
counting a number of the predicted macro blocks of each of the monitored zones;
determining whether a number of predicted macro blocks of a monitored zone is equal to or greater than a corresponding preset value;
when the number of predicted macro blocks of at least one monitored zone is equal to or greater than the corresponding preset value, determine a monitored zone where a dynamic object is located;
adjusting the device parameters of the network camera as device parameters of the monitored zone where the dynamic object is located for recording.
5. The method as claimed in claim 4 , further comprising:
determining the dynamic object is not existing in the monitored zone when the number of predicted macro blocks of at each of the monitored zones is less than the corresponding preset value.
6. The method as claimed in claim 4 , wherein the prediction mode include 4 by 4 predicted macro blocks and 16 by 16 predicted macro blocks.