Blog for work on my Masters thesis - a survey of methods for evaluating media understanding, object detection, and pattern matching algorithms. Mostly, it is related to ViPER, the Video Performance Evaluation Resource. If you find a good reference, or would like to comment, e-mail viper at cfar.umd.edu.
Archives
Media Processing Evaluation Weblog
Tuesday, July 27, 2004
Problems with ViPER; Required Features
- Display with Respect To Issues:
The current 'don't change dwrt object' is a miserable failure, if it is, in fact, implemented at all.dwrt seems to adversely effect the selection of items on the video frame. I'm getting a load of exceptions.- Really, should allow movement of dwrt object, but just have background move and object stay still.
After deleting a shape, I should go into 'select' mode, not edit/create mode, right?I should be able to draw/select/create outside of the image.- Support for multiple selection
"Add I-Frame Descriptor" only works the first time.- There appears to be a problem with loading a directory of BMP files. Also, it would be nice to have a .info editor.
- The 'play where valid' icon is weak. Also, a propagate icon would be nice. And a 'some children have pwv enabled' icon would be good, too. Hey, while I'm on it, I should add icons to the other windows, too (about, hotkeys, undo, media editor, and schema editor).
- Global timeline overview, with indication of current view. See acrobat's red box around the selection of the current page.
- Better control of editing attributes, including turning display on/off for attributes and propagate on/off for attributes. These would both be helped with attribute time lines in the chronicle.
- Clean up the menu to support
grouping,graying-out, and check-boxes. Verify that 'duplicate' still works, and implement 'shift' command.- status bar? we need better modality feedback in the video frame view. the highlights aren't enough. This includes the need for: custom cursors, right-click menus, a 'relevant preferences' toolbar (like for the current tool in pshop), and, in general, better looking shapes (more ppt like, more linking of attributes in a descriptor/attributes in a class of descriptors, etc).
Modify system.err to print to the user log. The great majority of real exceptions we are currently getting are in places that don't crash into the logger, but instead all the way down to the event dispatch thread.I can't figure out how to attach a logger to the EDT, so I'm going to redirect system.err, instead.
- posted by David @ 2:37 PM
Thursday, July 08, 2004
Beta 2
I really should have put out beta 2 last weekend; not much has changed since then. On the down side, for some reason the png files aren't showing up in the mac build. I'll try to fix that soon. Also, I'll probably switch to .dmg from .zip for the mac build, too.