<transcript><audio_141>robustness as this current dk2 tracker for example then i can assure you many companies would be very interested in so let's take a look at kinds of markers um</transcript><caption><image_142>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 lecture hall. On the chalkboard, there is a list of natural features written in white chalk. The list includes:

1. Natural features
2. Hardness
3. Extract & maintain
4. Remove moving
5. Reliability low
6. Special features
7. Trivial count
8. R tags
9. Retroactive marker
10. IR is visible in the bottom right corner of the image.

The man is looking at the list with a serious expression on his face.</caption><transcript><audio_143>let me say something about retroreflective markers this is a very common technique that's used in motion capture systems they've been around for quite a while the motion picture industry has used them before for capturing</transcript><transcript><audio_144>dancers and digital actors capturing real actors and turning them into digital actors let's say when you use retroflective markers</transcript><video><caption><image_145>The image is a close-up of a jellyfish swimming in an aquarium. The jellyfish appears to be translucent and has a long, slender body with multiple tentacles extending outwards from its body. The tentacles are white and appear to be floating in the water. The background is a light green color, and the jellyfish is the main focus of the image. The image is taken from a low angle, looking up at the jellyfishes.</caption><caption><image_146>The image shows a man in a blue t-shirt standing in front of a green chalkboard. He is holding a piece of chalk in his right hand and appears to be writing something on the chalkboard with it. The chalk is written in white chalk and there is a red circle on the bottom left corner of the image. The man is bending over and seems to be in the process of writing something. The background is a classroom with white walls and a whiteboard.</caption></video><transcript><audio_147>and then around the camera you have a</transcript><caption><image_148>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 piece of paper in his right hand. He appears to be writing or drawing on the chalkboard with a marker. The chalkboard has a white chalk drawing of a square and a rectangle on it. The man is standing with his left hand on his hip and his right arm stretched out to the side. The background is blurred, but it seems like he is in a classroom or a classroom setting.</caption><transcript><audio_149>leds right so you know there's lights facing me today right so so you're trying to get a good image of me and the camera so same thing if you're trying to image something out here shine some bright lights on it with leds except we can move into the</transcript><video><caption><image_150>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. He has short dark hair and is gesturing with his right hand as if he is explaining something. On the chalkboard, there is a drawing of a lightbulb and some text. The background is blurred, but it seems like the man is standing in a classroom or a classroom setting.</caption><caption><image_151>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 a teacher or a student. He has short dark hair and is pointing to something on the chalkboard with his right hand. On the left side of the image, there is a drawing of a lightbulb with the words "light bulb" written above it. The drawing is in white chalk and is drawn in a simple, cartoon-like style. The background is a plain white wall.</caption><caption><image_152>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 is pointing towards something on the chalkboard with his right hand. On the left side of the image, there is a drawing of a lightbulb with the words "LEDs" written above it. The man appears to be giving a presentation or lecture.</caption></video> robustness as this current dk2 tracker for example then i can assure you many companies would be very interested in so let's take a look at kinds of markers um let me say something about retroreflective markers this is a very common technique that's used in motion capture systems they've been around for quite a while the motion picture industry has used them before for capturing dancers and digital actors capturing real actors and turning them into digital actors let's say when you use retroflective markers and then around the camera you have a leds right so you know there's lights facing me today right so so you're trying to get a good image of me and the camera so same thing if you're trying to image something out here shine some bright lights on it with leds except we can move into the
{"source": "grass-yt-cc-by.0C13S_EtHNY|shard_10016_22|create_multimodal_data.extract_yt_and_generate_transcripts.60|shard_10016|create_multimodal_data.generate_captions.40|shard_10016|create_multimodal_data.generate_captions.53", "params": {"id": "0C13S_EtHNY", "channel_id": "UC640y4UvDAlya_WOj5U4pfA", "duration": 1521, "view_count": 2364, "age_limit": 0, "chapters": [{"start_time": 0, "end_time": 66.0, "title": "<Untitled Chapter 1>"}, {"start_time": 66.0, "title": "Parallax", "end_time": 284.0}, {"start_time": 284.0, "title": "Estimating Position and Orientation", "end_time": 643.0}, {"start_time": 643.0, "title": "A Simple Pinhole Camera Model Which Uses Perspective Projection", "end_time": 821.0}, {"start_time": 821.0, "title": "Hard Computer Vision", "end_time": 1011.0}, {"start_time": 1011.0, "title": "Trivial Computer Vision", "end_time": 1181.0}, {"start_time": 1181.0, "title": "Retroreflective Markers", "end_time": 1521}], "like_count": 21, "channel_follower_count": 2140000, "license": "Creative Commons Attribution license (reuse allowed)", "channel_is_verified": true, "uploader_id": "@iit", "yt_tar_file": "/leonardo_work/EUHPC_E03_068/audio/fixed_download/grass-yt-cc-by//shard_10016/0C13S_EtHNY.tar.gz"}}