How to improve the image of a camera obscura (pin-hole camera) an - PowerPoint PPT Presentation

Feb 21, 2023 •272 likes •538 views

Joachim Gretsch & Nadine Reddersen Gymnasium Andreanum Hildesheim, Germany How to improve the image of a camera obscura (pin-hole camera) an inquiry-based approach from the middle school optics curriculum. How to improve the image of a

Joachim Gretsch & Nadine Reddersen Gymnasium Andreanum Hildesheim, Germany How to improve the image of a camera obscura (pin-hole camera) – an inquiry-based approach from the middle school optics curriculum.
How to improve the image of a camera obscura
How to improve the image of a camera obscura Physics curriculum for 12 to 13 year-old students in Lower Saxony: Phenomena orientated optics: images of … … a camera obscura and … a photo camera
How to improve the image of a camera obscura Students’ pre -knowledge Geometrical optics: emitter-receiver concept of light light and shadow linear propagation of light basic idea of a camera obscura
.
How to improve the image of a camera obscura (Students ’ pre-knowledge) camera made of a crisps can
How can you improve the image of a camera obscura ?
How to improve the image of a camera obscura The students are asked - to form groups and - to develop ideas to improve the image of the camera obscura, - to write them down , - possibly to plan the technical realization and - to test them in experiments.
How to improve the image of a camera obscura
How to improve the image of a camera obscura
How to improve the image of a camera obscura
How to improve the image of a camera obscura Put a cone on the back to eliminate (interfering) light
How to improve the image of a camera obscura Better definition, more intense colours of the image
How to improve the image of a camera obscura Enlarge (central) hole on the front Reasons (and results): The larger hole lets in more light, so the image becomes larger, more colourful and more less defined.
How to improve the image of a camera obscura Additional holes on the front (more light), enlarge the central hole Image is brighter, but completely blurred.
How to improve the image of a camera obscura The inside of the tube white instead of black Take a thinner screen (because black swallows all colours!) Put a tube (between the lamp and the hole) for concentrated light transparent sheet instead of sandwich paper After we shone light on a teddy bear, its image was much brighter. Let water drip on to the object Mount a lamp on the front of the camera for more light
How to improve the image of a camera obscura Put a lens in front of the screen Better definition, brighter image
How to improve the image of a camera obscura Continuation: - experiments with convex lenses - construction of lens images
How to improve the image of a camera obscura Experiences - high motivation - variety of different ideas - more room for creativity - importance of documentation
How to improve the image of a camera obscura Conclusion We found that our inquiry-based learning sequence can open up the process of conventional tuition in a positive way. Based on a subject of the current curriculum it can be very easily integrated into a conventional physics course.
How to improve the image of a camera obscura ? ? ? ? Children enter school as question marks … . . . . … and leave as periods (full stops). (Neil Postman)

Recommend

Image Enhancement The objective is to process an image to improve its suitability for a

Image Enhancement The objective is to process an image to improve its suitability for a specific application; thus, application-oriented Two basic methods: spatial-domain (manipulating image pixels) frequency-domain (modifying the

276 views • 11 slides

business need? improve image courtesy of iStockphoto recurrent image courtesy of Microsoft

team small BIG impact Christina Grimsley, Ph.D. Monitronics, International business need? improve image courtesy of iStockphoto recurrent image courtesy of Microsoft Clipart image courtesy of Microsoft Clipart image courtesy of

1.29k views • 116 slides

Improve Tag Suggestions in Image Sharing Sites Position of .. o Mathias Lux,

Using Visual Features to Improve Tag Suggestions in Image Sharing Sites Position of .. o Mathias Lux, mlux@itec.uni-klu.ac.at o Oge Marques, omarques@fau.edu o Arthur Pitman, apitman@edu.uni-klu.ac.at Department for Information Technology,

413 views • 14 slides

Rotation-Invariance State-of-the-Art . . . Can Further Improve Need for Improvement

Image Deconvolution: . . . Ideal No-Noise Case Deconvolution in the . . . Blind Image . . . Rotation-Invariance State-of-the-Art . . . Can Further Improve Need for Improvement Rotation-Invariant . . . State-of-the-Art Blind Testing the New

276 views • 14 slides

Using Neural Cells to Improve Image Textual Line Segmentation Patrick Schone

Using Neural Cells to Improve Image Textual Line Segmentation Patrick Schone (patrickjohn.schone@ldschurch.org) 7 February 2017 Standards Technical Conference Overview Motivation Neural Cells for Line Counting Hybrid Segmentation

668 views • 18 slides

Tuning the Performance of Convolutional Neural Network for Image Classification on GPU Agenda

Tuning the Performance of Convolutional Neural Network for Image Classification on GPU Agenda Adoptions of Image classification or image recognition at Alibaba Easy ways to improve performance of Caffe Further performance

182 views • 15 slides

Image Restoration Image Enhancement and Image Restoration both deal with improving images. Image

Image Restoration Image Enhancement and Image Restoration both deal with improving images. Image Analysis In Image Enhancement, the quality of the improved image was Image Restoration and Reconstruction judged subjectively. In contrast, Image

349 views • 8 slides

radiologists to do more in the field of AI POWERED BRAIN IMAGE INTERPRETATION SOLUTION

Empowering radiologists to do more in the field of AI POWERED BRAIN IMAGE INTERPRETATION SOLUTION medical image interpretation . Company Purpose MISSION: To improve accessibility to fast and accurate brain diagnostics FUNDAMENTAL

372 views • 13 slides

10701 Semi supervised learning Can Unlabeled Data improve supervised learning? Important

10701 Semi supervised learning Can Unlabeled Data improve supervised learning? Important question! In many cases, unlabeled data is plentiful, labeled data expensive Image classification (x=images from the web, y=image type) Text

886 views • 37 slides

DISC- Improv to Improve DISC- Improv to Improve DISC- Improv to Improve DISC- Improv to Improve

DISC- Improv to Improve DISC- Improv to Improve DISC- Improv to Improve DISC- Improv to Improve DISC- Improv to Improve DISC Personally I am very fond of strawberries and cream, but I have found that for some strange reason, fish prefer

270 views • 6 slides

Image Features Sanja Fidler CSC420: Intro to Image Understanding 1 / 1 Image Features Image

Image Features Sanja Fidler CSC420: Intro to Image Understanding 1 / 1 Image Features Image features are useful descriptions of local or global image properties designed (or learned!) to accomplish a certain task You may want to choose di ff

941 views • 70 slides

Image formation How are objects in the world captured in Image formation an image? Matlab

Image formation How are objects in the world captured in Image formation an image? Matlab tutorial Tuesday, Sept 2 Image formation Physical parameters of image formation object film Geometric Type of projection Camera

190 views • 8 slides

Image Transforma1ons image filtering : change range of image Image Processing : g(x) =

Image Transforma1ons image filtering : change range of image Image Processing : g(x) = h(f(x)) Transforma1ons, Warping and Morphing h Last Week Courtesy: Irfan Essa, Georgia Tech James Hayes, Georgia Tech Alexei Efros, UC Berkeley

308 views • 6 slides

Image Features Sanja Fidler CSC420: Intro to Image Understanding 1 / 64 Image Features Image

Image Features Sanja Fidler CSC420: Intro to Image Understanding 1 / 64 Image Features Image features are useful descriptions of local or global image properties designed to accomplish a certain task You may want to choose different features

1.09k views • 71 slides

Technological development and use across disciplines Image: ESA/ATG Medialab Image: CAGE, UiT

Technological development and use across disciplines Image: ESA/ATG Medialab Image: CAGE, UiT Image: NTNU Applied underwater robotics Lab RV Kronprins Haakon Image/data: nuka.uib.no Selected Norwegian marine observations in the Arctic

272 views • 3 slides

Chapter 4 IMAGE PROC IMAGE PROCESSIN ESSING ILWIS for Windows contains a set of image

Chapter 4 IMAGE PROC IMAGE PROCESSIN ESSING ILWIS for Windows contains a set of image processing tools for enhancement and analysis of data from space borne or airborne platforms. In this chapter, the routine applications such as image

1.22k views • 88 slides

Student Presentation Academic Year 2017/2018 Improving the image of construction - 2017 | 1

Considerate Constructors Scheme Student Presentation Academic Year 2017/2018 Improving the image of construction - 2017 | 1 Mission statement The aim of the Scheme is to improve the image of construction Improving the image of construction -

554 views • 39 slides

Image Resizing / Goal: Mimic a be7er photographer by Retarge.ng improving image quality

10/4/16 Advanced Image Edi.ng Tools Image Resizing / Goal: Mimic a be7er photographer by Retarge.ng improving image quality Image retarge.ng (resize image) Image comple.on (erase and fill unwanted areas) Texture synthesis

340 views • 10 slides

IM IMAGE-TO TO-IM IMAGE T TRANSLATIO ION W WIT ITH C CONDIT ITIO IONAL AD ADVERSAR

IM IMAGE-TO TO-IM IMAGE T TRANSLATIO ION W WIT ITH C CONDIT ITIO IONAL AD ADVERSAR ARIAL AL NETWORKS Yuanjie Lu 9 th April What is image to image? Seems like a language concept can be translated into Chinese, French, Italian,

462 views • 17 slides

Is Digital Technology Image 1 Restructuring the brain? Globally connected Image 2 Image 3 How

Is Digital Technology Image 1 Restructuring the brain? Globally connected Image 2 Image 3 How do we interact? Image 4 Image 5 What do others think? Young people are born into technology, and theyre used to using it 24/7, their brains

614 views • 15 slides

Image Processing Todays Class Image Representations: Matrices Image Representations: RGB,

CS6501: Deep Learning for Visual Recognition Image Processing Todays Class Image Representations: Matrices Image Representations: RGB, HSV, etc Image Processing: Brightness Image Filtering: Mean Filter, Median Filter Image Filtering:

959 views • 77 slides

RGBD Tutorial 14210240041 Gu Pan Image RGB YUV Lab Depth Image RGB image Depth image Each pixel in

RGBD Tutorial 14210240041 Gu Pan Image RGB YUV Lab Depth Image RGB image Depth image Each pixel in depth image shows the distance to camera Device Kinect Kinect2 (we use) SoftKinetic Leapmotion Kinect Depth camera developed by

480 views • 29 slides

The Digital Image What is a Digital Image? How to Make an Image a Computable Entity

The Digital Image What is a Digital Image? How to Make an Image a Computable Entity Convert 3D Scene to a 2D Computational Photography ] CS 4475/6475 Maria Hybinette Today: How the digital information of the sensor can be used

568 views • 7 slides

IGRT: an opportunity to learn, to improve practice and to generate evidence T Kron, C Fox, F

IGRT: an opportunity to learn, to improve practice and to generate evidence T Kron, C Fox, F Foroudi, J Thomas, A Thompson, R Owen, A Herschtal, A Haworth, KH Tai Peter MacCallum Cancer Centre Melbourne Image Guidance First X-ray in

614 views • 42 slides