A computational approach for obstruction-free photography Tianfan Xue, Michael Rubinstein, Ce Liu, William T. Freeman ACM Transactions on Graphics (TOG) 34 (4), (SIGGRAPH), 2015 OCW is open and available to the world and is a permanent MIT activity. by. The basic idea is simple. To compute intensity at a point, you have to add up radiance of all rays incident at that point. Such computation can overcome limitations of the imaging hardware and enable new applications. No enrollment or registration. Media Arts and Sciences See examples at the Stanford Light Field Archive. Use high depth complexity, colorful, point specular (sphere) objects. Selected reference materials, syllabus structure and lesson plan guidance is published and free to download via the institute’s Open Course Ware (OCW) program, to alllow motivated individuals to teach themselves. Massachusetts Institute of Technology. Each ray is four dimensional: it has a position (x,y) + angle (theta, phi). Computational Photography. Displaying 1 - 11 of 11 news articles related to this topic. Rob Fergus, Antonio Torralba and William T. Freeman. » This course provides a review of linear algebra, including applications to networks, structures, and estimation, Lagrange multipliers. With film-like photography, the captured image is a 2D projection of the scene. Computational Camera and Photography Lecture 1: Four special matrices License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu MIT OpenCourseWare makes the materials used in the teaching of almost all of MIT's subjects available on the Web, free of charge. For the Love of Physics - Walter Lewin - May 16, 2011 - Duration: 1:01:26. MIT OpenCourseWare is a free & open publication of material from thousands of MIT courses, covering the entire MIT curriculum. Your use of the MIT OpenCourseWare site and materials is subject to our Creative Commons License and other terms of use. Background scene is a flat book cover or painting with very little red in it. CampusWire—your first stop for questions and clarifications. The encoding and decoding process differentiates Computational Photography from tra­ ditional film-like digital photography. This is one of over 2,200 courses on OCW. Massachusetts Institute of Technology. (Image by Prof. Ramesh Raskar.). Find materials for this course in the pages linked along the left. Combine two photos by mixing the color channels. mercury vapor and sunlight), using curves available online or computing the curve yourself using a spectroscope), Multiply each band of scene with corresponding intensity of light source in that band, Create a weighted combination for 'red', 'green' and 'blue' target values, Create a Metamer (objects with two different wavelength profile that look the same in RGB under a light source with specific wavelength profile). “Amateur spectroscope.” (PDF), Graph of human eye spectral sensitivity, to estimate "red," "green," and "blue" target values (JPG), More about eye response: Koren, N. "Color management and color science: Introduction". The MAS.131/MAS.531 Flickr group pool contains some images produced by students for the assignments and final project. Choose objects with vibrant bright saturated colors. ‎Show Computational Camera and Photography, Ep Lecture 1: Introduction and fast-forward preview of all topics - Part 1 - Dec 29, 2015 Video Lectures and MIT Classes. In this course we will study this emerging multi-disciplinary field at the intersection of signal processing, applied optics, computer graphics and vision, electronics, art, and online sharing through social networks. Here is good example of how to assemble your homework into a Web page: On your Webpage, you should have sourcecode and other details. License: Creative Commons BY-NC-SA. Displaying 1 - 11 of 11 news articles related to this topic. You will test your code on this dataset. Summary of Subject Requirements Subjects; Science Requirement: 6: Humanities, Arts, and Social Sciences (HASS) Requirement [two subjects can be satisfied by 6.207[J] and 6.805[J] in the Departmental Program]; at least two of these subjects must be designated as communication-intensive (CI-H) to fulfill the Communication Requirement. A computational camera attempts to digitally capture the essence of visual information by exploiting the synergistic combination of task-specific optics, illumination, sensors and processing. Keith Winstein Recommended for you Please include some description below each image. Students are encouraged to program in MATLAB® for image analysis. Massachusetts Institute of Technology: MIT OpenCourseWare, https://ocw.mit.edu. We will learn about opportunities in scientific and medical imaging, mobile-phone based photography, camera for HCI and sensors mimicking animal eyes. Send to friends and colleagues. The LensToy only draws rays but does not form an intensity image. MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. Use only 16 images along the horizontal translation. Submit all input images, source code and output for each item. Download files for later. The final project with some example student work is presented on the projects page. With more than 2,400 courses available, OCW is delivering on the promise of open sharing of knowledge. If novel cameras can be designed to sample light in radically new ways, then rich and useful forms of visual information may be recorded — beyond those present in traditional photographs. Graduate students (enrolled in MAS.531) will complete four homework assignments, while undergraduates (enrolled in MAS.131) will complete the first three of these assignments. ", Vaquero, D., R. Feris, M. Turk, and R. Raskar. Assignment 2A: Virtual Optical Bench: Modify software to shoot rays, Assignment 2B: Lightfield Photography: Take photos, shift each photo and average (using Photoshop/HDRshop/Matlab/OpenCV/Flash/Java, whatever you like), Assignment 2C: Same as 2B but render input photos in software, Flatbed scanner + lenticulars — See Yang, Jason C. "A Light Field Camera For Image Based Rendering." shift each photo a pixel with respect to its immediate left neighbor, and then compute an average, the focus plane is closer. Fall 2009. Computational photography has broad applications in aesthetic and technical photography, 3D imaging, medical imaging, human-computer interaction, virtual/augmented reality and so on. You will use a multi-spectral database and create the appearance of objects under light sources with given color profiles. This book is intended for readers who are interested in algorithmic and technical aspects of computational photography … Knowledge is your reward. Create images of 3D and 2D objects. Show: News Articles. You can directly start with his software or write your own in OpenGL or MATLAB. Computational photography can improve the capabilities of a camera, or introduce features that were not possible at all with film based photography, or reduce the cost or size of camera elements. (, Raskar, R., K-H Tan, R. Feris, J. Yu, and M. Turk. Be creative with camera configurations, maybe with very large baseline or with a microscope. 1. There's no signup, and no start or end dates. With more than 2,400 courses available, OCW is delivering on the promise of open sharing of knowledge. Home » Modify, remix, and reuse (just remember to cite OCW as the source. There's no signup, and no start or end dates. ‎A computational camera attempts to digitally capture the essence of visual information by exploiting the synergistic combination of task-specific optics, illumination, sensors and processing. Lectures by Walter Lewin. Produce see-through effect by eliminating foreground color pixels. if the most common count is say below 5, set the pixel to black. Create a Web page for all your homework assignments. IEEE Computer Graphics and Applications, special issue on Computational Photography, March, 2007. The forground scene is a flat red colored paper with see through vertical stripes creating a FENCE. Courses Knowledge is your reward. Most of source code is available online; you will have to modify for your task. Learn more », © 2001–2018 Computational Photography by Alexei (Alyosha) Efros. MIT MAS.531/MAS.131 Computational Camera and Photography, Fall 2009 Audio Preview At other times, please pull together as a class and help each other, and we'll help soon. For rejecting a given plane, instead of taking average of 16 values, take the majority vote. Take multiple photos by changing lighting and other parameters. Massachusetts Institute of Technology (MIT) is making materials from 12 of its photography-related courses available free online under a Creative Commons license. : 8 Some useful introductory material from my SIGGRAPH Computational Photography course. This course features Audio lectures, Lecture notes, Assignments, and Student Projects with examples. 18.06 Linear Algebra - The video lectures are on web.mit.edu/18.06 and ocw.mit.edu and YouTube. Massachusetts Institute of Technology (MIT) is making materials from 12 of its photography-related courses available free online under a Creative Commons license. 27, No. We will study how rays can be propagated thru free space and optical elements. Track hand or finger using shadows from colored RGB lights, video camera. No enrollment or registration. Place the camera on a ruler (or create a Lego Robot) for precise positioning. Then add new elements such as (i) prism (ii) lenslet (iii) ability to change focal length of lens etc. Computational photography is the convergence of computer graphics, computer vision, optics, and imaging. They will make you ♥ Physics. Learn more », © 2001–2018 Nanodegree Program Artificial Intelligence. Recommended for you Whether you’re a student, a teacher, or simply a curious person that wants to learn, MIT OpenCourseWare (OCW) offers a wealth of insight and inspiration. Purpose: Playing with rays, lens, focus and creating see-through effects. 18.085 / 18.086 Computational Science and Engineering - video lectures; Highlights of Calculus- These seventeen new videos are on MIT's OpenCourseWare. There's no signup, and no start or end dates. Output 1: Digitally focus at infinity (average of all photos), Output 2: Digitally focus on back plane (shift some and average), Output 3: Digitally focus on front plane (shift more and average). To create multiple camera views, you can also aim at an array of mirrors, put the camera on a robot or x-y platform. Download files for later. Computational photography. Show refocusing and see-thru effects. Please read the Lightfield Camera papers very carefully. Home Download RSS feed: News Articles / In the Media. » 2) Symposium on Computational Photography. MIT OpenCourseWare is a free & open publication of material from thousands of MIT courses, covering the entire MIT curriculum. No enrollment or registration. You can also use unstructured positions and use a calibration target (or structure from motion or Photosynth software) to find the positions. Master's Thesis, MIT, 2000. Computational Photography is an emerging area of research which combines Computer Vision and Graphics techniques in order to aid development of better digital photography applications. Computer Vision by Steve Seitz and Rick Szeliski. A computational camera attempts to digitally capture the essence of visual information by exploiting the synergistic combination of task-specific optics, illumination, sensors and processing. This page describes the four homework assignments for the class. Freely browse and use OCW materials at your own pace. CampusWire will be staffed at specific times, when a member of the team will be answering questions (existing and new). Show effects like depth of field using aperture or capture lightfield by selectively blocking the aperture. Use OCW to guide your own life-long learning, or to teach others. Raskar, Ramesh, Adrian Ilie, and Jingyi Yu. ‎Show Computational Camera and Photography, Ep Lecture 2: Modern optics and lenses; ray-matrix operations; context enhanced imaging - Part 1 - Dec 29, 2015 Made for sharing. May 2005, MIT … Many universities use the textbook Introduction to Linear Algebra. We don't offer credit or certification for using OCW. If you can't think of a scene, try this. Computational photography. [see Fall 2004 version in MIT OpenCourseWare] 6.815/6.865 Digital and Computational Photography (Prof. Fredo Durand) Emphasis on software methods, graphics, and image processing; 6.870 Computational Imaging (Prof. Berthold K. P. Horn) - last offered Spring 2006. Learn essential Artificial Intelligence concepts from AI experts like Peter Norvig and Sebastian Thrun, including search, optimization, planning, pattern recognition, and more. CAVE Multispectral Image Database with 31 bands. Translate camera and take photos at fixed distance intervals. This is one of over 2,200 courses on OCW. Knowledge is your reward. Median of 16 values will work in some cases, but the most common value will be a more robust choice. Modify, remix, and reuse (just remember to cite OCW as the source. ... More about MIT News at Massachusetts Institute of Technology. Computational photography and video go one step further and exploit digital technology to enable arbitrary computation between the light array and the final image or video. MAS.963 Special Topics: Computational Camera and Photography (Fall 2008), Computer Science > Graphics and Visualization, Electrical Engineering > Signal Processing. Computational photography has broad applications in aesthetic and technical photography, 3D imaging, medical imaging, human-computer interaction, virtual/augmented reality and so on. Made for sharing. ‎Show Computational Camera and Photography, Ep Lecture 3: Single-shot Multi-domain Camera - Dec 29, 2015 In … MIT OpenCourseWare is a free & open publication of material from thousands of MIT courses, covering the entire MIT curriculum. Use OCW to guide your own life-long learning, or to teach others. boundary between two hands), indicate the two hands in different color in rendering, On table, have printed photos of hand (so ordinary camera will be confused) or other crazy texture, Lemon slices (and color chart) from the section ". Fewer photos means a larger depth of field.). You are trying to imitate a camera array. OCW is not an MIT education. In this course we will study this emerging multi-disciplinary field at the intersection of signal processing… Random Lens Imaging. Please include intermediate results, if any. » Select one of these three sub-assignments, based on your background and interests. Its role is to overcome the limitations of traditional cameras, by combining imaging and computation to enable new and enhanced ways of capturing, representing, and … Homework 3: Human Computer Interaction (HCI) using Multi-Flash Camera, High Performance Imaging Using Large Camera Arrays, Light fields and computational photography, Dappled Photography: Mask Enhanced Cameras for Heterodyned Light Fields and Coded Aperture Refocusing, Synthetic Aperture Focusing using a Shear-Warp Factorization of the Viewing Transform, Non-photorealistic Camera: Depth Edge Detection and Stylized Rendering using Multi-Flash Imaging, Color management and color science: Introduction, Recover multiple wavelength bands of a scene (using online database), Get the wavelength profile of at least two light sources (e.g. See related courses in the following collections: Ramesh Raskar. ‎Show Computational Camera and Photography, Ep Lecture 1: Introduction and fast-forward preview of all topics - Part 2 - Dec 29, 2015 A computational camera attempts to digitally capture the essence of visual information by exploiting the synergistic combination of task-specific optics, illumination, sensors and processing. (GZ). In camera HDR is an example of computational photography. Ideally, control the camera using Remote Capture software from your computer. If you shift each photo cumulatively, e.g. ‎Show Computational Camera and Photography, Ep Lecture 3: Epsilon Photography: Improving Film-like Photography - Dec 29, 2015 18.065 Linear Algebra and Learning from Data New textbook and MIT video lectures OCW YouTube; 18.06 Linear Algebra - The video lectures are on web.mit.edu/18.06 and ocw.mit.edu and YouTube. Media Arts and Sciences A computational camera attempts to digitally capture the essence of visual information by exploiting the synergistic combination of task-specific optics, illumination, sensors and processing. This simple shift+add strategy is sufficient to achieve reasonable refocusing effects. In several hands-on projects we will build physical imaging prototypes and understand how each stage of the imaging process can be manipulated. 50 videos Play all MIT 18.085 Computational Science & Engineering I, Fall 2008 MIT OpenCourseWare MIT 2006 Integration Bee - Duration: 3:13:35. December 13, 2011. By Robert Lukeman . Take 16 photos. ), Learn more at Get Started with MIT OpenCourseWare. Freely browse and use OCW materials at your own pace. There's no signup, and no start or end dates. Photo classes offered by the MIT Student Art Association The Edgerton Center 11.309J / 4.215J Sites in Sight: Photography as Inquiry [OCW] 4.341 Introduction to Photography [OCW] 4.343 Photography and Related Media [OCW] 6.163 Strobe Project Laboratory [OCW] 21A.348 Photography and Truth [OCW] For more information about using these materials and the Creative Commons license, see our Terms of Use. Related Courses at MIT. Let’s look at where we are today. Paper (pdf) : Project website. Knowledge is your reward. ", Turn on 1 LED at a time, take 3 (or 4) photos, Do region filling to indicate (render) hand against textured background on table, From one photo, decompose 3 photos using RGB channels, Find shadows, do region filling and find foreground, Let two hands overlap, find internal silhouettes (i.e. Your use of the MIT OpenCourseWare site and materials is subject to our Creative Commons License and other terms of use.