Trent Sartain’s Post

I'm excited to share that I've joined Bosch as a Software Engineer working within their Situational Analysis team in Plymouth, Michigan! I'll be writing algorithms and functions to help support their incredible automated driving platform. I'm finishing up my second week and can honestly say I'm having more fun and learning more than I have in years! I get to work with a team full of fantastically smart people and also pursue knowledge in a domain that I've been falling in love with for quite some time. #bosch #softwareengineer #finallyfreefromwebdevelopment

Here's another fun and recent project of mine. The technique displayed in the video is called "Seam-Carving". It is also referred to as "Content-Aware Resizing". This technique allows you to resize an image in such a way that you can maintain the core elements of the image. Usually, if you want to resize one dimension of an image, you either have to crop it (losing content) or scale it (distorting content). The video below shows my implementation in action. During each iteration, a Sobel filter is used to detect strong edges in the image and then a cumulative energy map is created using dynamic programming. This makes it possible to know the least energetic seam of pixels that can be removed (shown quickly in red between each iteration). Notice that core elements like the lake, path, flowers and tree are maintained fairly well. The image is reduced in width by 50%. The technique can also be used in reverse to expand an image. The photo was taken by me last year up in Michigan's beautiful Upper Peninsula at the Porcupine Mountains. #python #computervision #computationalphotography #georgiatech #puremichigan

For Computational Photography, I got to build my own implementation of "Object Removal by Exemplar-Based Inpainting" using the research from this paper: https://lnkd.in/dwK42Y9 This implementation was built using Python and didn't use any existing libraries or code. It works by factoring in strong linear structures when considering which "patch" to fill in next. You can see the algorithm in action in the video below. Notice how the seams of the wood are maintained and meet up where they would in reality behind the dice. I vectorized my code and implemented a few optimizations of my own devising to both speed up the algorithm and produce better results. #python #code #computervision #georgiatech