5 ms·

Kittydar – Face detection for cats

58 points by artur_ 14y ago

Zimahl 14y ago
The test images didn't work for me (Firefox 5.0, don't ask). However, saving the test images to my desktop then dragging them in worked fine.
mikeevans 14y ago
Drag and drop in the demo doesn't seem to work for me (Win 7/Chrome 19). Otherwise, awesome.
- hinathan 14y ago
  Ditto for Mac/Safari. There must be something diabolical and/or useful to do with this tech but I'm struggling to come up with a good use case other than 'because kitty'
  - Sunlis 14y ago
    I found that I couldn't drag the sample images into the box, but dragging from my file system did the trick. Still failed miserably when detecting the faces though (and I was even using one of their test images).
  - showerst 14y ago
    Aside from the earlier mention of 'I want to just let my cat into the house to the exclusion of others' I think it's interesting because if you're not in the computer vision world, you don't see a ton of stories or demos about detecting things other than human faces in pictures.
  - lallysingh 14y ago
    Some unmanned spray bottles hooked to cameras would be useful for some mice I know. Or malicious pups.
- onli 14y ago
  For me the demo-images don't work, too: Uncaught TypeError: Cannot read property 'type' of undefined on line 64 of demo.js: if (!file.type.match(imageType)) { And please don't offer only a drag&drop-uploader. For people like me who are not using a file manager it is impossible to use that site with local images.
deleted 14y ago
[deleted]
runjake 14y ago
I tried a few different photos of multiple cats. It'd always get 1 correct positive, but never more than 1 correct positive. In every image's case, it would have multiple false positives in a cat's fur patterns. Here's one example: http://4.bp.blogspot.com/--RBVfn6FzOI/Tq5kOxFGKEI/AAAAAAAACnM/LaiZLD0sUKY/s1600/cats.jpg http://4.bp.blogspot.com/--RBVfn6FzOI/Tq5kOxFGKEI/AAAAAAAACn... Neat start, though. I have a particular interest in this subject as I'm entertain schemes that allow our cats into our garage while locking neighborhood cats out. I ran into similar issues with fur patterns during image processing techniques. I'll probably end up relying on a more simple solution: RFID tags attach to their collars.
- JonWood 14y ago
  Your cat may already have an RFID tag - they're used in the process of "chipping" cats so that they can be traced if they find themselves at a vet without their owner. If there is one, it'll be on the back of their neck.
  - mmoche 14y ago
    These tags tend to migrate, particularly in older animals. Shelter workers are trained to check the entire animal as the tags often end up on the animal's side or stomach.
- jerf 14y ago
  "I'm entertain schemes that allow our cats into our garage while locking neighborhood cats out": http://www.quantumpicture.com/Flo_Control/flo_control.htm http://www.quantumpicture.com/Flo_Control/flo_control.htm
danso 14y ago
For the curious, the author references this Microsoft paper, "Cat Head Detection - How to Effectively Exploit Shape and Texture Features": http://research.microsoft.com/pubs/80582/ECCV_CAT_PROC.pdf http://research.microsoft.com/pubs/80582/ECCV_CAT_PROC.pdf
joejohnson 14y ago
The test image with four cats on a "Hello Kitty" rug results in only three cats being detected. The white cat on the far right has it's eyes nearly closed; maybe this is why it wasn't detected?
Groxx 14y ago
Fun idea, but definitely needs more training. It even gets things wrong on the test images (sometimes spectacularly - why those leaves in particular?).
BryanB55 14y ago
I love how simple the photo uploader is. I'm currently working on a new upload system for my site, does anyone know how compatible a drag and drop system that automatically shows the image like that would be? Does it work in all browsers? IE? It seems to work in all of my browsers but my target users are not very computer savy and usually have IE7, 8 or old computers.
- smarx 14y ago
  Not very. I believe drag/drop file upload doesn't work in IE at all. See here for the browser support for a very nice file upload component: https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-support https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-s....
ot 14y ago
Also check out this project, it is going to be presented at ICML2012 in a couple of weeks: http://research.google.com/archive/unsupervised_icml2012.html http://research.google.com/archive/unsupervised_icml2012.htm... they trained a huge neural network with millions of unlabeled frames from Youtube, and derived high-level features. The authors showed that the network learned without supervision the concepts of human face, human body... and cat.
- abeppu 14y ago
  That work was impressive -- but kind of over the top. From what I can tell, their dataset could at most have been like 2.5TB uncompressed. Their model took 3 days to train on 1000 16 core machines. They called this "inexpensive way to develop features from unlabeled data". Later they point out that their model was "more than an order of magnitude larger than other large networks reported in literature".
Killswitch 14y ago
I freaking love kitty cats!
stcredzero 14y ago
I dragged a screenshot of their logo into Kittydar. No cats. Magritte would be pleased.
renegadedev 14y ago
"kittydar is best at detecting upright cats that are facing forward " Good luck with getting a cat to do that
- sashahart 14y ago
  No one wants to be the person who implements an elaborate system for recognizing cat butts.
idonthack 14y ago
these are not cats: http://i.imgur.com/Bc89L.png http://i.imgur.com/Bc89L.png
alexleavitt 14y ago
Oh no... :( http://i.imgur.com/FlPXf.png http://i.imgur.com/FlPXf.png
vail130 14y ago
It's pretty good at detecting some dog faces too!

58 points by artur_ 14y ago

The test images didn't work for me (Firefox 5.0, don't ask). However, saving the test images to my desktop then dragging them in worked fine.

mikeevans 14y ago

Drag and drop in the demo doesn't seem to work for me (Win 7/Chrome 19). Otherwise, awesome.

hinathan 14y ago
Ditto for Mac/Safari. There must be something diabolical and/or useful to do with this tech but I'm struggling to come up with a good use case other than 'because kitty'
- Sunlis 14y ago
  I found that I couldn't drag the sample images into the box, but dragging from my file system did the trick. Still failed miserably when detecting the faces though (and I was even using one of their test images).
- showerst 14y ago
  Aside from the earlier mention of 'I want to just let my cat into the house to the exclusion of others' I think it's interesting because if you're not in the computer vision world, you don't see a ton of stories or demos about detecting things other than human faces in pictures.
- lallysingh 14y ago
  Some unmanned spray bottles hooked to cameras would be useful for some mice I know. Or malicious pups.
onli 14y ago
For me the demo-images don't work, too: Uncaught TypeError: Cannot read property 'type' of undefined on line 64 of demo.js: if (!file.type.match(imageType)) { And please don't offer only a drag&drop-uploader. For people like me who are not using a file manager it is impossible to use that site with local images.

deleted 14y ago

[deleted]

runjake 14y ago

I tried a few different photos of multiple cats. It'd always get 1 correct positive, but never more than 1 correct positive. In every image's case, it would have multiple false positives in a cat's fur patterns. Here's one example: http://4.bp.blogspot.com/--RBVfn6FzOI/Tq5kOxFGKEI/AAAAAAAACnM/LaiZLD0sUKY/s1600/cats.jpg http://4.bp.blogspot.com/--RBVfn6FzOI/Tq5kOxFGKEI/AAAAAAAACn... Neat start, though. I have a particular interest in this subject as I'm entertain schemes that allow our cats into our garage while locking neighborhood cats out. I ran into similar issues with fur patterns during image processing techniques. I'll probably end up relying on a more simple solution: RFID tags attach to their collars.

JonWood 14y ago
Your cat may already have an RFID tag - they're used in the process of "chipping" cats so that they can be traced if they find themselves at a vet without their owner. If there is one, it'll be on the back of their neck.
- mmoche 14y ago
  These tags tend to migrate, particularly in older animals. Shelter workers are trained to check the entire animal as the tags often end up on the animal's side or stomach.
jerf 14y ago
"I'm entertain schemes that allow our cats into our garage while locking neighborhood cats out": http://www.quantumpicture.com/Flo_Control/flo_control.htm http://www.quantumpicture.com/Flo_Control/flo_control.htm

danso 14y ago

For the curious, the author references this Microsoft paper, "Cat Head Detection - How to Effectively Exploit Shape and Texture Features": http://research.microsoft.com/pubs/80582/ECCV_CAT_PROC.pdf http://research.microsoft.com/pubs/80582/ECCV_CAT_PROC.pdf

joejohnson 14y ago

The test image with four cats on a "Hello Kitty" rug results in only three cats being detected. The white cat on the far right has it's eyes nearly closed; maybe this is why it wasn't detected?

Groxx 14y ago

Fun idea, but definitely needs more training. It even gets things wrong on the test images (sometimes spectacularly - why those leaves in particular?).

BryanB55 14y ago

I love how simple the photo uploader is. I'm currently working on a new upload system for my site, does anyone know how compatible a drag and drop system that automatically shows the image like that would be? Does it work in all browsers? IE? It seems to work in all of my browsers but my target users are not very computer savy and usually have IE7, 8 or old computers.

smarx 14y ago
Not very. I believe drag/drop file upload doesn't work in IE at all. See here for the browser support for a very nice file upload component: https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-support https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-s....

ot 14y ago

Also check out this project, it is going to be presented at ICML2012 in a couple of weeks: http://research.google.com/archive/unsupervised_icml2012.html http://research.google.com/archive/unsupervised_icml2012.htm... they trained a huge neural network with millions of unlabeled frames from Youtube, and derived high-level features. The authors showed that the network learned without supervision the concepts of human face, human body... and cat.

abeppu 14y ago
That work was impressive -- but kind of over the top. From what I can tell, their dataset could at most have been like 2.5TB uncompressed. Their model took 3 days to train on 1000 16 core machines. They called this "inexpensive way to develop features from unlabeled data". Later they point out that their model was "more than an order of magnitude larger than other large networks reported in literature".

Killswitch 14y ago

I freaking love kitty cats!

stcredzero 14y ago

I dragged a screenshot of their logo into Kittydar. No cats. Magritte would be pleased.

renegadedev 14y ago

"kittydar is best at detecting upright cats that are facing forward " Good luck with getting a cat to do that

sashahart 14y ago
No one wants to be the person who implements an elaborate system for recognizing cat butts.

idonthack 14y ago

these are not cats: http://i.imgur.com/Bc89L.png http://i.imgur.com/Bc89L.png

alexleavitt 14y ago

Oh no... :( http://i.imgur.com/FlPXf.png http://i.imgur.com/FlPXf.png

vail130 14y ago

It's pretty good at detecting some dog faces too!