I am looking for a software that can convert photo to video

[McGonagall]

Can you tell me a powerful one?

[roozhou]

Try MPlayer.

e.g.
You have a sequence of photos named 00000.jpg ~ 10000.jpg and you need to play them as 30fps video.
Then use the following cmd line:
mplayer mf://%05d.jpg -mf fps=30:type=jpeg

[LoRd_MuldeR]

Avidemux (http://forum.doom9.org/showthread.php?t=126164) can open a sequence of images (JPEG or PNG) and save it as a video file.
The files should be named "file_000.jpg", "file_001.jpg", "file_002.jpg", "file_003.jpg" and so on.
Open the first one and it will suggest to append the other ones...