Computational Photography: Epsilon to Coded Imaging
Description
Computational photography combines plentiful computing, digital sensors, modern optics, actuators, and smart lights to escape the limitations of traditional cameras, enables novel imaging applications and simplifies many computer vision tasks. However, a majority of current Computational Photography methods involve taking multiple sequential photos by changing scene parameters and fusing the photos to create a richer representation. The goal of Coded Computational Photography is to modify the optics, illumination or sensors at the time of capture so that the scene properties are encoded in a single (or a few) photographs. We describe several applications of coding exposure, aperture, illumination and sensing and describe emerging techniques to recover scene parameters from coded photographs.
| Slides | |
| 0:00 | Computational Photography: Epsilon to Coded Imaging |
| 1:09 | Integration of Cameras in Mobile Phones |
| 2:09 | Where are the ‘camera’s? (1) |
| 3:31 | Where are the ‘camera’s? (2) |
| 4:02 | We focus on creating tools to better capture and share visual information |
| 4:22 | Cameras of Tomorrow |
| 6:23 | Motion Blurred Photo (1) |
| 6:52 | Motion Blurred Photo (2) |
| 7:17 | Flutter Shutter Camera (1) |
| 7:55 | Flutter Shutter Camera (2) |
| 8:15 | Blurring == Convolution (1) |
| 9:22 | Blurring == Convolution (2) |
| 10:13 | Blurring == Convolution (3) |
| 11:13 | Blurring == Convolution (4) |
| 11:51 | Blurring == Convolution (5) |
| 12:26 | Coded Aperture Camera |
| 12:44 | In Focus Photo |
| 12:52 | Out of Focus Photo: Open Aperture |
| 13:21 | Out of Focus Photo: Coded Aperture |
| 13:36 | Captured Blurred Photo |
| 13:41 | Refocused on Person |
| 14:08 | Less is More (1) |
| 15:03 | Less is More (2) |
| 16:00 | Shielding Light … |
| 16:13 | Coded Computational Photography |
| 16:35 | Computational Photography |
| 17:18 | Epsilon Photography |
| 18:12 | Computational Photography (1) |
| 18:54 | Computational Photography (2) |
| 20:50 | Computational Photography (3) |
| 22:05 | Computational Photography (4) |
| 22:15 | Computational Photography (5) |
| 22:58 | Light Field Inside a Camera |
| 24:53 | Stanford Plenoptic Camera [Ng et al 2005] |
| 25:32 | Digital Refocusing |
| 26:23 | Mask based Light Field Camera |
| 27:04 | How to Capture 4D Light Field with 2D Sensor ? |
| 27:23 | Optical Heterodyning |
| 28:02 | Cosine Mask Used |
| 28:28 | Captured 2D Photo (1) |
| 28:43 | Captured 2D Photo (2) |
| 29:11 | Computing 4D Light Field |
| 29:47 | Extra sensor bandwidth cannot capture extra dimensionof the light field |
| 29:49 | Solution: Modulation Theorem Make spectral copies of 2D light field |
| 29:50 | Sensor Slice captures entire Light Field |
| 29:51 | Demodulation to recover Light Field (1) |
| 29:51 | Demodulation to recover Light Field (2) |
| 29:54 | Single shot visual hull: Shield Field |
| 30:54 | Single shot 3D reconstruction: Simultaneous Projections using Masks |
| 31:00 | Long Distance Bar-codes |
| 32:02 | Computational Camera and Photography |
| 32:29 | Towards a 6D Display - Passive Reflectance Field Display |
| 32:34 | Camera Culture |
| 33:30 | Tools for Visual Computing (1) |
| 34:32 | Tools for Visual Computing (2) |
| 35:01 | Blind Camera |
| 35:33 | Cameras of Tomorrow (1) |
| 35:39 | Cameras of Tomorrow (2) |
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