Geometry in computer vision | Stereophotogrammetry

Camera resectioning

Camera resectioning is the process of estimating the parameters of a pinhole camera model approximating the camera that produced a given photograph or video; it determines which incoming light ray is associated with each pixel on the resulting image. Basically, the process determines the pose of the pinhole camera. Usually, the camera parameters are represented in a 3 × 4 projection matrix called the camera matrix.The extrinsic parameters define the camera pose (position and orientation) while the intrinsic parameters specify the camera image format (focal length, pixel size, and image origin). This process is often called geometric camera calibration or simply camera calibration, although that term may also refer to photometric camera calibration or be restricted for the estimation of the intrinsic parameters only. Exterior orientation and interior orientation refer to the determination of only the extrinsic and intrinsic parameters, respectively. The classic camera calibration requires special objects in the scene, which is not required in camera auto-calibration.Camera resectioning is often used in the application of stereo vision where the camera projection matrices of two cameras are used to calculate the 3D world coordinates of a point viewed by both cameras. (Wikipedia).

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Shot Types Part 1

Sometimes a closeup works best, but other times you may want a wider-angle shot. You can experiment by moving closer and farther away from your subject, or by using your camera's zoom. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digita

From playlist Digital Photography

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Camera Parts

Cameras come in many different shapes and sizes, so the exact buttons and features will vary. However, there are a few basic parts that almost all cameras have. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digitalphotography/

From playlist Digital Photography

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Macro filming Hard Disk Drive

Filters being used: - High and low frequency denoising - Spline-based image resizing to FullHD - Image stabilization http://kostackstudio.de

From playlist Video Experiments

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Camera Sensor

Every digital camera has a sensor located behind the lens. The sensor is the part that actually captures the photo, much like the roll of film in a film camera. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digitalphotography/

From playlist Digital Photography

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Rearrange a series

In this video, I define what it means to rearrange (or reshuffle) a series and show that if a series converges absolutely, then any rearrangement of the series converges to the same limit. Interesting Consequence: https://youtu.be/Mw7ocynGVmw Series Playlist: https://www.youtube.com/play

From playlist Series

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The Problem with Photo Manipulation

In this video, you’ll learn about some of the problems with photo manipulation. Visit https://edu.gcfglobal.org/en/digital-media-literacy/the-problem-with-photo-manipulation/1/ to learn even more. We hope you enjoy!

From playlist Digital Media Literacy

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Mirrorless Cameras

Mirrorless Cameras are pocket-sized alternatives to DSLRs that feature interchangeable lenses. These cameras use a digital screen or an electronic viewfinder to display what the camera sees. One of the best advantages is that you will be able to see how settings such as shutter speed, ape

From playlist Digital Photography

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Google Docs: Working With Images

Working with images in Google Docs can be difficult at first. By default, images are in line with the text, meaning that you won't have the freedom to move the image where you want. But by switching the image to the "wrap text" option, you'll be able to move it anywhere in the document.

From playlist Google Docs

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Colon Resection

http://www.nucleushealth.com/ - This 3D medical animation shows the normal digestive functions of the colon, outlines various conditions that may require surgery, and describes the colon resection procedure. Key steps include removing the affected segment of colon and stapling the two loos

From playlist Nucleus Medical Animations in English

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Lung Cancer

This 3D medical animation begins with an overview of the treatment options for lung cancer. Different surgical options such as a wedge resection, lobectomy, pneumonectomy, sleeve resection are reviewed. The focus then turns to non-invasive therapies such as radiation therapy, external beam

From playlist Nucleus Medical Animations in English

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DSLR Cameras

Short for "digital single-lens reflex," DSLR Cameras are large cameras with interchangeable lenses that can take very high-quality photos. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digitalphotography/

From playlist Digital Photography

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Lung cancer treatment | Respiratory system diseases | NCLEX-RN | Khan Academy

Lung cancer is treated using a combination of treatments such as chemotherapy, radiation, and a variety of surgical procedures (such as wedge resections, pneumonectomies, and segmental resections). Learn about the complications and side effects of treatment options and why they occur. Crea

From playlist Respiratory system diseases | NCLEX-RN | Khan Academy

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Physics 70 Principle of Least Action (24 of 27) The Path of Least Action Revisited

Visit http://ilectureonline.com for more math and science lectures! We will revisit the presumption that there is a path of least action from one point and ending at another point and if ANY OTHER path deviates from that least action path, that path will have a larger action (which does n

From playlist PHYSICS 70 PRINCIPLE OF LEAST ACTION: ADVANCED MECHANICS

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If You Need Surgery, Make Sure Your Surgeon is a Specialist

I spend a fair amount of time talking about how social determinants of health come into play, with respect to health care outcomes. I also talk a lot about things that don't work, and therefore constitute waste in that they don't affect outcomes positively, and cost money. But there are so

From playlist Healthcare Triage News

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Tobias Weich: Resonance chains on Schottky surfaces

Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b

From playlist SPECIAL 7th European congress of Mathematics Berlin 2016.

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Treatment for Bladder Cancer

Visit our website to learn more about using Nucleus content for patient engagement and content marketing: http://www.nucleushealth.com/ #BladderCancerTreatment #BladderCancerSurgery #BladderCancer MEDICAL ANIMATION TRANSCRIPT: You or someone you care about may have been recently diagnos

From playlist Cancer (Oncology)

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The Virtual Brain

from Dynamical Systems to Epilepsy Surgery: Data-driven Personalized Brain Network Models for Translational Medicine - by Hiba Sheheitli

From playlist Mathematical Biology

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The Computer Chronicles - Speech Technologies (1999)

Special thanks to archive.org for hosting these episodes. Downloads of all these episodes and more can be found at: http://archive.org/details/computerchronicles

From playlist Computer Chronicles Episodes on Software

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Utility of Research Autopsies for Understanding the Dynamics of Cancer -Christine Donahue

Mathematical Methods in Cancer Evolution and Heterogeneity Workshop Title: Utility of Research Autopsies for Understanding the Evolutionary Dynamics of Cancer Speaker: Christine A. Iacobuzio Donahue Affiliation: MSKCC Date: June 1, 2017 For more videos, please visit http://video.ias.edu

From playlist Mathematical Methods in Cancer Evolution

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Photoshop Project

If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.

From playlist Photoshop

Related pages

Rotation matrix | Camera matrix | Rigid body | Homogeneous coordinates | Bundle adjustment | 3D pose estimation | Pinhole camera model | Camera auto-calibration | Pose (computing) | Pixel | Homography (computer vision) | Direct linear transformation | Focal length | Eight-point algorithm