<video><caption><image_33>The image shows a man standing in front of a green chalkboard with mathematical equations written on it. He is wearing a blue t-shirt and appears to be in a classroom or a classroom setting. The equations are written in white chalk and are arranged in a grid-like pattern. The man is holding a piece of paper in his right hand and is gesturing with his left hand as if he is explaining something. He has a smile on his face and is looking directly at the camera.</caption><caption><image_34>The image shows a man standing in front of a green chalkboard with various mathematical equations written on it. The equations are written in white chalk and are arranged in a grid-like pattern. The man is wearing a blue t-shirt and appears to be in a classroom or a classroom setting. He is standing with his hands on his hips and is looking at the equations with a serious expression on his face. On the left side of the chalkboard, there is a yellow arrow pointing to the right, indicating that he is explaining the equations. The text on the blackboard is written in black chalk and is not visible in the image.</caption><caption><image_35>The image shows a young man standing in front of a green chalkboard. He is wearing a blue t-shirt and glasses and appears to be in a classroom or classroom setting. The chalkboard is filled with mathematical equations written in white chalk. The equations are written in different sizes and are arranged in a grid-like pattern. The man is looking down at the chalkboard with a serious expression on his face. The image is taken from a low angle, looking up at the man and the equations.</caption></video><transcript><audio_36>bad drift unless you have some additional global reference for position like a camera right so that's what we're going to get to next so that leads us to estimating position</transcript><caption><image_37>The image shows a young man standing in front of a green chalkboard. He is wearing a blue t-shirt with a logo on it and has short dark hair. He appears to be in a classroom or a classroom setting, as there is a whiteboard behind him with equations and formulas written on it. The man is pointing to the right side of the chalkboard with his right hand, as if he is explaining something. He has a serious expression on his face and is looking directly at the camera.</caption><transcript><audio_38>so in other words the full six degrees of freedom now this this acceleration information may very well be useful this linear acceleration information we can use this in a system to perform position and orientation tracking</transcript><transcript><audio_39>however we also want to have an extra signal that provides positional drift all right</transcript><transcript><audio_40>one</transcript><caption><image_41>The image shows a young man standing in front of a green chalkboard. He is wearing a blue t-shirt and khaki pants. The chalkboard has white text written on it, which appears to be a mathematical equation or equation. The man is standing with his back to the camera, facing away from the camera. The background is blurred, but it seems like the man is in a classroom or a classroom setting.</caption><transcript><audio_42>in other words you may want to have some field lines that are intentionally bending right or maybe you want the amplitude of the field to be intentionally changing in some way and you've engineered a technology based on some base stations that you put</transcript><caption><image_43>The image shows a man standing in front of a green chalkboard in a classroom. He is wearing a blue t-shirt and appears to be giving a presentation or lecture. On the chalkboard, there is a white chalk drawing of a waveform with the words "Estimating positioning & formation" written above it. Below the waveform, there are two lines of text that read "Possible approaches" and "1. Geeko-o-constant magnetic or EM field". The man is gesturing with his right hand as he speaks.</caption><transcript><audio_44>and there's some kind of field lines that you're generating from that base station and based on that you may have a second base station as well if this doesn't provide enough information so based on the information coming from one or more base stations they could use</transcript><transcript><audio_45>ultra wide band radio as an em example or you could be generating magnetic fields so um based on the information obtained when you place a sensor in here that's moving around and designed exactly to sense your non-constant vector fields</transcript><video><caption><image_46>The image shows a man standing in front of a green chalkboard. He is wearing a blue t-shirt and appears to be in a classroom or a classroom setting. The chalkboard is filled with various mathematical equations and formulas written in white chalk. The man is holding a piece of paper in his left hand and is looking down at the chalkboard with a focused expression on his face. The image is taken from a low angle, so the focus is on the man and the board.</caption><caption><image_47>The image shows a man standing in front of a green chalkboard. He is wearing a blue t-shirt and khaki pants and is holding a white chalk in his right hand. On the chalkboard, there are several equations written in white chalk. The equations are arranged in a grid-like pattern and appear to be related to physics or mathematics. The man appears to be writing on the board with a focused expression on his face.</caption><caption><image_48>The image shows a man standing in front of a blackboard in a classroom. He is wearing a blue t-shirt and is holding a whiteboard marker in his right hand. On the blackboard, there is a white chalkboard with various mathematical equations written on it. The equations are written in different colors and are arranged in a grid-like pattern. The man appears to be giving a presentation or explaining something to the audience.</caption></video><transcript><audio_49>it's still with these this type of technology is still very hard to get a high degree of accuracy it's very easy to warp magnetic fields by moving metal through the field other kinds of problems like that and the the radio based methods i think still cannot</transcript><video><caption><image_50>The image shows a man standing in front of a green chalkboard. He is wearing a blue t-shirt with a logo on it and appears to be giving a presentation or lecture. The man is gesturing with his right hand as he speaks. On the chalkboard behind him, there are several equations written in white chalk. The equations appear to be related to a problem or problem.</caption><caption><image_51>The image shows a man standing in front of a blackboard in a classroom. He is wearing a blue t-shirt with a logo on it and appears to be giving a presentation. The blackboard is green and has various mathematical equations written on it in white chalk. The equations are written in different sizes and are arranged in a grid-like pattern. The man is gesturing with his right hand as he speaks. He seems to be explaining something to the audience.</caption><caption><image_52>The image shows a man standing in front of a green chalkboard in a classroom. He is wearing a blue t-shirt with a logo on it and appears to be a teacher or a student. The chalkboard is filled with various mathematical equations and formulas written in white chalk. The man is pointing to one of the equations with his right hand, as if he is explaining something. He has a serious expression on his face and is focused on the task at hand.</caption></video> bad drift unless you have some additional global reference for position like a camera right so that's what we're going to get to next so that leads us to estimating position so in other words the full six degrees of freedom now this this acceleration information may very well be useful this linear acceleration information we can use this in a system to perform position and orientation tracking however we also want to have an extra signal that provides positional drift all right one in other words you may want to have some field lines that are intentionally bending right or maybe you want the amplitude of the field to be intentionally changing in some way and you've engineered a technology based on some base stations that you put and there's some kind of field lines that you're generating from that base station and based on that you may have a second base station as well if this doesn't provide enough information so based on the information coming from one or more base stations they could use ultra wide band radio as an em example or you could be generating magnetic fields so um based on the information obtained when you place a sensor in here that's moving around and designed exactly to sense your non-constant vector fields it's still with these this type of technology is still very hard to get a high degree of accuracy it's very easy to warp magnetic fields by moving metal through the field other kinds of problems like that and the the radio based methods i think still cannot
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