calculate distance in meters between two bounding box coordinates
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The images that I have in my dataset have been taken from at different zoom levels. So, it's kind of a bird-eye view of a place where I need to detect humans on the ground.
I need to calculate distance between two bounding box in actual length (meters).
The data that I have is camera focal length, which I got using CV2 Camera Calibration method. So, I have a camera matrix as shown here https://docs.opencv.org/3.4.3/dc/dbb/tutorial_py_calibration.html.
For each zoom level, I have two xml files - intrinsic and extrinsic.
But, I am not sure how do I proceed further to use them in calculating the distance.
<opencv_storage><M type_id="opencv-matrix"><rows>3</rows><cols>3</cols><dt>d</dt><data>
2.7571971911817068e+03 0. 3.2541419672795934e+02 0.
3.4383231216135928e+03 2.0362852071392774e+02 0. 0. 1.</data></M><D type_id="opencv-matrix"><rows>1</rows><cols>8</cols><dt>d</dt><data>
-2.8636067603781758e+01 -2.1605516406937022e+03
-2.8115159951341410e-03 -6.4403584422980525e-02
1.1047392183552937e+05 -2.3525871276310724e+01
-2.8771858140924023e+03 1.3726582186567629e+05</data></D></opencv_storage>
This is one of the intrinsics.xml content.
python object-detection cv2
asked Nov 19 at 11:51
nirvair
98011638
add a comment |
up vote
0
down vote
favorite
The images that I have in my dataset have been taken from at different zoom levels. So, it's kind of a bird-eye view of a place where I need to detect humans on the ground.
I need to calculate distance between two bounding box in actual length (meters).
The data that I have is camera focal length, which I got using CV2 Camera Calibration method. So, I have a camera matrix as shown here https://docs.opencv.org/3.4.3/dc/dbb/tutorial_py_calibration.html.
For each zoom level, I have two xml files - intrinsic and extrinsic.
But, I am not sure how do I proceed further to use them in calculating the distance.
<opencv_storage><M type_id="opencv-matrix"><rows>3</rows><cols>3</cols><dt>d</dt><data>
2.7571971911817068e+03 0. 3.2541419672795934e+02 0.
3.4383231216135928e+03 2.0362852071392774e+02 0. 0. 1.</data></M><D type_id="opencv-matrix"><rows>1</rows><cols>8</cols><dt>d</dt><data>
-2.8636067603781758e+01 -2.1605516406937022e+03
-2.8115159951341410e-03 -6.4403584422980525e-02
1.1047392183552937e+05 -2.3525871276310724e+01
-2.8771858140924023e+03 1.3726582186567629e+05</data></D></opencv_storage>
This is one of the intrinsics.xml content.
python object-detection cv2
asked Nov 19 at 11:51
nirvair
98011638
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
The images that I have in my dataset have been taken from at different zoom levels. So, it's kind of a bird-eye view of a place where I need to detect humans on the ground.
I need to calculate distance between two bounding box in actual length (meters).
The data that I have is camera focal length, which I got using CV2 Camera Calibration method. So, I have a camera matrix as shown here https://docs.opencv.org/3.4.3/dc/dbb/tutorial_py_calibration.html.
For each zoom level, I have two xml files - intrinsic and extrinsic.
But, I am not sure how do I proceed further to use them in calculating the distance.
<opencv_storage><M type_id="opencv-matrix"><rows>3</rows><cols>3</cols><dt>d</dt><data>
2.7571971911817068e+03 0. 3.2541419672795934e+02 0.
3.4383231216135928e+03 2.0362852071392774e+02 0. 0. 1.</data></M><D type_id="opencv-matrix"><rows>1</rows><cols>8</cols><dt>d</dt><data>
-2.8636067603781758e+01 -2.1605516406937022e+03
-2.8115159951341410e-03 -6.4403584422980525e-02
1.1047392183552937e+05 -2.3525871276310724e+01
-2.8771858140924023e+03 1.3726582186567629e+05</data></D></opencv_storage>
This is one of the intrinsics.xml content.
python object-detection cv2
asked Nov 19 at 11:51
nirvair
98011638
The images that I have in my dataset have been taken from at different zoom levels. So, it's kind of a bird-eye view of a place where I need to detect humans on the ground.
I need to calculate distance between two bounding box in actual length (meters).
The data that I have is camera focal length, which I got using CV2 Camera Calibration method. So, I have a camera matrix as shown here https://docs.opencv.org/3.4.3/dc/dbb/tutorial_py_calibration.html.
For each zoom level, I have two xml files - intrinsic and extrinsic.
But, I am not sure how do I proceed further to use them in calculating the distance.
<opencv_storage><M type_id="opencv-matrix"><rows>3</rows><cols>3</cols><dt>d</dt><data>
2.7571971911817068e+03 0. 3.2541419672795934e+02 0.
3.4383231216135928e+03 2.0362852071392774e+02 0. 0. 1.</data></M><D type_id="opencv-matrix"><rows>1</rows><cols>8</cols><dt>d</dt><data>
-2.8636067603781758e+01 -2.1605516406937022e+03
-2.8115159951341410e-03 -6.4403584422980525e-02
1.1047392183552937e+05 -2.3525871276310724e+01
-2.8771858140924023e+03 1.3726582186567629e+05</data></D></opencv_storage>
This is one of the intrinsics.xml content.
python object-detection cv2
python object-detection cv2
asked Nov 19 at 11:51
nirvair
98011638
asked Nov 19 at 11:51
nirvair
98011638
asked Nov 19 at 11:51
nirvair
98011638
asked Nov 19 at 11:51
nirvair
98011638
asked Nov 19 at 11:51
nirvair
98011638
98011638
add a comment |
add a comment |
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