Methods and apparatus to perform remote monitoring
Methods, apparatus, systems and articles of manufacture to perform remote monitoring are disclosed. Some example methods include adjusting an image capture rate at which an image sensor captures images based on a difference image containing differences between a first image of a first set of objects and a second image of a second set of objects. Example methods also include reducing a file size of the difference image using an edge detection technique and prioritizing one or more of a set of frames based on an amount of information contained in the frames. The frames are subdivisions of the image. In further example methods, the first image is taken at a first time and the second image is taken at a second, later time, and the method includes subtracting the first image from the second image to generate the difference image.
1. An apparatus to perform remote monitoring, the apparatus comprising:
memory; and
at least one processor to execute computer readable instructions to:
divide an image into a plurality of frames, respective ones of the plurality of frames associated with (i) corresponding interior pixels that lie within one or more object outlines and (ii) corresponding exterior pixels that lie outside the one or more object outlines;
identify a set of priority frames from the plurality of frames based on corresponding amounts of interior pixels associated with the respective ones of the plurality of frames;
generate an order in which the set of priority frames is to be transmitted to a remote base station, the order to be generated based on a random number generator and a seed value; and
embed the seed value and a size of the set of priority frames in at least one of the set of priority frames prior to transmission of the set of priority frames to the remote base station based on the order, the size of the set of priority frames corresponding to a total number of priority frames included in the set of priority frames.
2. The apparatus of claim 1 , wherein the amounts are represented as percentages.
3. The apparatus of claim 1 , wherein the image is a monochromatic image, the corresponding interior pixels associated with the respective ones of the plurality of frames have a first color, and the corresponding exterior pixels associated with the respective ones of the plurality of frames have a second color.
4. The apparatus of claim 3 , wherein the at least one processor is to perform edge detection on the monochromatic image to identify the one or more object outlines.
5. The apparatus of claim 1 , wherein to embed the seed value and the size of the set of priority frames in the at least one of the set of priority frames, the at least one processor is to include the seed value and the size of the set of priority frames in a frame header of the at least one of the set of priority frames.
6. The apparatus of claim 5 , wherein the at least one processor is to include battery charge information in the frame header of the at least one of the set of priority frames, the battery charge information representative of a charge state of a battery of the apparatus.
7. At least one non-transitory computer readable medium comprising computer readable instructions that, when executed, cause at least one processor to at least:
divide an image into a plurality of frames, respective ones of the plurality of frames associated with (i) corresponding interior pixels that lie within one or more object outlines and (ii) corresponding exterior pixels that lie outside the one or more object outlines;
identify a set of priority frames from the plurality of frames based on corresponding amounts of interior pixels associated with the respective ones of the plurality of frames;
generate an order in which the set of priority frames is to be transmitted to a remote base station, the order to be generated based on a random number generator and a seed value; and
embed the seed value and a size of the set of priority frames in at least one of the set of priority frames prior to transmission of the set of priority frames to the remote base station based on the order, the size of the set of priority frames corresponding to a total number of priority frames included in the set of priority frames.
8. The at least one non-transitory computer readable medium of claim 7 , wherein the amounts are represented as percentages.
9. The at least one non-transitory computer readable medium of claim 7 , wherein the image is a monochromatic image, the corresponding interior pixels associated with the respective ones of the plurality of frames have a first color, and the corresponding exterior pixels associated with the respective ones of the plurality of frames have a second color.
10. The at least one non-transitory computer readable medium of claim 9 , wherein the instructions cause the at least one processor to perform edge detection on the monochromatic image to identify the one or more object outlines.
11. The at least one non-transitory computer readable medium of claim 7 , wherein to embed the seed value and the size of the set of priority frames in the at least one of the set of priority frames, the instructions cause the at least one processor to include the seed value and the size of the set of priority frames in a frame header of the at least one of the set of priority frames.
12. The at least one non-transitory computer readable medium of claim 11 , wherein the instructions cause the least one processor to include battery charge information in the frame header of the at least one of the set of priority frames, the battery charge information representative of a charge state of a battery.
13. A method comprising:
dividing an image into a plurality of frames, respective ones of the plurality of frames associated with (i) corresponding interior pixels that lie within one or more object outlines and (ii) corresponding exterior pixels that lie outside the one or more object outlines;
identifying a set of priority frames from the plurality of frames based on corresponding amounts of interior pixels associated with the respective ones of the plurality of frames;
generating, by executing an instructions with at least one processor, an order in which the set of priority frames is to be transmitted to a remote base station, the order to be generated based on a random number generator and a seed value; and
embedding, by executing an instructions with the at least one processor, the seed value and a size of the set of priority frames in at least one of the set of priority frames prior to transmission of the set of priority frames to the remote base station based on the order, the size of the set of priority frames corresponding to a total number of priority frames included in the set of priority frames.
14. The method of claim 13 , wherein the image is a monochromatic image, the corresponding interior pixels associated with the respective ones of the plurality of frames have a first color, and the corresponding exterior pixels associated with the respective ones of the plurality of frames have a second color.
15. The method of claim 14 , further including performing edge detection on the monochromatic image to identify the one or more object outlines.
16. The method of claim 13 , wherein the embedding includes adding the seed value and the size of the set of priority frames to a frame header of the at least one of the set of priority frames.
17. The method of claim 16 , further including adding battery charge information in the frame header of the at least one of the set of priority frames, the battery charge information representative of a charge state of a battery.
18. The method of claim 13 , wherein the amounts are represented as percentages.