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64 lines
2.2 KiB
Markdown
64 lines
2.2 KiB
Markdown
---
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title: "342-assignment-01"
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tags:
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- lecture
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- cosc342
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---
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Choosing images
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- scene type
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- number of image pairs (more than 1)
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- image size
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- image format and compression
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- image geometry
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use a range of input images
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# Experiment 1: Feature Matching
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HYPOTHESIS:
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Level of detail in images will have more of an affect on accuracy of FLANN based matching that in Brute-Force mathing
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EXPERIMENT DESIGN:
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Collect a number of highly detailed images and a number of less detailed images. Highly detailed images with have a lot of information such as trees, text, buildings, landscapes etc. Less detailed images with be sparse, these could be bare buildings, walls, images with large blocks of color.
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Detailed Images will result in a large number of features, and the opposite should be true for less detailed images. This could affect the accuracy of image mosaics.
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To conduct the experiment I will measure the reprojection error of FLANN and Brute force matching on images with high and low level of detail.
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_control for other factors: lighting, camera settings (exposure, iso, etc), resolution,_
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RESULTS
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DISCUSSION
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# Experiment 2: RANSAC for Homography Estimation
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QUESTION: How does the choice of RANSAC threshold affect the speed of homography estimation in highly detailed images?
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EXPERIMENT DESIGN:
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RESULTS
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DISCUSSION
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# Todo
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- specify number and type of images to collect
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- choose question
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- develop system for running tests and timing
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- develop system for creating charts
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# Log
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31/03
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- Collected images from around the lab and out the windows.
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- I created mosaics from the image pairs to see if the images were ok
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- A lot of the images had mismatches in similar areas at the bottom of the match
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- I think this might be because I rotated from my body while taking the photos, rather than rotating just the phone.
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- So I'll try to take some more pictures by rotating just the phone and see how they look
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- I also need to develop a selection of images that I need to get
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- There are also some issues with the display of the mosaic. doesn't always fit perfectly on screen and there were a few instances of line of randomly colours pixels on the screen
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- 
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