Identification of decreased object detectability for a video stream

A controller for identifying decreasing object detectability for a video stream, the controller comprising:

• a receive module configured to receive the video stream over a communication channel;
• a receive module configured to receive first visual object detection, VOD, data of the video stream, wherein the first VOD data has been obtained from the video stream before being sent over the communication channel towards the controller, wherein the first VOD data includes a first detection probability value;
• an obtain module configured to obtain second VOD data of the video stream, wherein the second VOD data is obtained from the video stream after being received by the controller, wherein the controller receives a subset of all first VOD data obtained from the video stream before being sent over the communication channel, wherein the subset is selected based on a bandwidth limitation of the communication channel, wherein the second VOD data includes a second detection probability value;
• a determine module configured to determine, by comparing the first VOD data to the second VOD data, whether any object present in the first VOD data has a decreased object detectability in the second VOD data, thereby identifying the decreasing object detectability for the video stream, wherein comparing the first VOD data to the second VOD data includes utilizing one or more of the first detection probability value and the second detection probability value to determine a detectability level for the at least one object and wherein the identifying the decreasing object detectability includes determining that the detectability level is below a detectability threshold value;
• and
• an issue module configured to issue a notification when the decreasing object detectability has been identified.

A controller for identifying decreasing object detectability for a video stream, the controller comprising processing circuitry, the processing circuitry being configured to cause the controller to:

• receive the video stream over a communication channel;
• receive first visual object detection, VOD, data of the video stream, wherein the first VOD data has been obtained from the video stream before being sent over the communication channel towards the controller, wherein the first VOD data includes a first detection probability value;
• obtain second VOD data of the video stream, wherein the second VOD data is obtained from the video stream after being received by the controller, wherein the controller receives a subset of all first VOD data obtained from the video stream before being sent over the communication channel, wherein the subset is selected based on a bandwidth limitation of the communication channel, wherein the second VOD data includes a second detection probability value;
• determine, by comparing the first VOD data to the second VOD data, whether any object present in the first VOD data has a decreased object detectability in the second VOD data, thereby identifying the decreasing object detectability for the video stream, wherein comparing the first VOD data to the second VOD data includes utilizing one or more of the first detection probability value and the second detection probability value to determine a detectability level for the at least one object and wherein the identifying the decreasing object detectability includes determining that the detectability level is below a detectability threshold value;
• and
• issue a notification when the decreasing object detectability has been identified.