Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
comparing_patterns [2018/01/23 18:02]
stan [Using the MantaMatcher Algorithm]
comparing_patterns [2018/01/23 18:05] (current)
stan [Examples images: what's usable, and what's not]
Line 83: Line 83:
  
 ^ Original Image ^ Resulting Feature Image ^ Description ^ ^ Original Image ^ Resulting Feature Image ^ Description ^
-| {{ :​ex01a.jpg?​nolink&​ |Example 1: original image 1}} | {{ :​ex01a_FT.jpg?​nolink&​ |Example 1: feature image 1}} | Features from both images seem to be represented reasonably well, despite the remora. Because it's a complicated spot pattern, and the spots are distinct, the algorithm has a lot of information to work with. A few spots are not represented,​ but on the whole these work well. Both feature ​images were kept. |+| {{ :​ex01a.jpg?​nolink&​ |Example 1: original image 1}} | {{ :​ex01a_FT.jpg?​nolink&​ |Example 1: feature image 1}} | Features from both images seem to be represented reasonably well, despite the remora. Because it's a complicated spot pattern, and the spots are distinct, the algorithm has a lot of information to work with. A few spots are not represented,​ but on the whole these images ​work well, and both images were kept. |
 | {{ :​ex01b.jpg?​nolink&​ |Example 1: original image 2}} | {{ :​ex01b_FT.jpg?​nolink&​ |Example 1: feature image 2}} | ::: | | {{ :​ex01b.jpg?​nolink&​ |Example 1: original image 2}} | {{ :​ex01b_FT.jpg?​nolink&​ |Example 1: feature image 2}} | ::: |
 | {{ :​ex02a.jpg?​nolink&​ |Example 2: original image 1}} | {{ :​ex02a_FT.jpg?​nolink&​ |Example 2: feature image 1}} | Despite the grainy and slightly lower quality original, the feature image seems to adequately represent the manta'​s simple spot pattern, so it was kept. | | {{ :​ex02a.jpg?​nolink&​ |Example 2: original image 1}} | {{ :​ex02a_FT.jpg?​nolink&​ |Example 2: feature image 1}} | Despite the grainy and slightly lower quality original, the feature image seems to adequately represent the manta'​s simple spot pattern, so it was kept. |
Line 90: Line 90:
 | {{ :​ex05a.jpg?​nolink&​ |Example 5: original image 1}} | {{ :​ex05a_FT.jpg?​nolink&​ |Example 5: feature image 1}} | Another case where both feature images fail to represent several main spots in the pattern, so both were rejected.\\ \\ This case highlights the benefit of both taking a photo perpendicular to the manta, and using a camera flash to improve the lighting, both of which could have helped here. | | {{ :​ex05a.jpg?​nolink&​ |Example 5: original image 1}} | {{ :​ex05a_FT.jpg?​nolink&​ |Example 5: feature image 1}} | Another case where both feature images fail to represent several main spots in the pattern, so both were rejected.\\ \\ This case highlights the benefit of both taking a photo perpendicular to the manta, and using a camera flash to improve the lighting, both of which could have helped here. |
 | {{ :​ex05b.jpg?​nolink&​ |Example 5: original image 2}} | {{ :​ex05b_FT.jpg?​nolink&​ |Example 5: feature image 2}} | ::: | | {{ :​ex05b.jpg?​nolink&​ |Example 5: original image 2}} | {{ :​ex05b_FT.jpg?​nolink&​ |Example 5: feature image 2}} | ::: |
-| {{ :​ex06a.jpg?​nolink&​ |Example 6: original image 1}} | {{ :​ex06a_FT.jpg?​nolink&​ |Example 6: feature image 1}} | Clear original photos, although the first feature image represents the single main spot in the pattern poorly. The algorithm has picked up on some of the back-scatter in the foreground, shown by the small arrows at the bottom of each feature image, but because the arrows are short it implies it gives them little "​weight"​ to the overall matching process compared to the longer/​larger arrows. ​Together the three feature images seem to adequately represent the spot pattern, so they were all kept. |+| {{ :​ex06a.jpg?​nolink&​ |Example 6: original image 1}} | {{ :​ex06a_FT.jpg?​nolink&​ |Example 6: feature image 1}} | Clear original photos, although the first feature image represents the single main spot in the pattern poorly. The algorithm has picked up on some of the back-scatter in the foreground, shown by the small arrows at the bottom of each feature image, but because the arrows are short it implies it gives them little "​weight"​ to the overall matching process compared to the longer/​larger arrows. ​The second and third feature images seem to adequately represent the spot pattern, so they were kept, but the first discarded. |
 | {{ :​ex06b.jpg?​nolink&​ |Example 6: original image 2}} | {{ :​ex06b_FT.jpg?​nolink&​ |Example 6: feature image 2}} | ::: | | {{ :​ex06b.jpg?​nolink&​ |Example 6: original image 2}} | {{ :​ex06b_FT.jpg?​nolink&​ |Example 6: feature image 2}} | ::: |
 | {{ :​ex06c.jpg?​nolink&​ |Example 6: original image 3}} | {{ :​ex06c_FT.jpg?​nolink&​ |Example 6: feature image 3}} | ::: | | {{ :​ex06c.jpg?​nolink&​ |Example 6: original image 3}} | {{ :​ex06c_FT.jpg?​nolink&​ |Example 6: feature image 3}} | ::: |
Print/export
QR Code
QR Code comparing_patterns (generated for current page)