It is still too slow.
The RF that is easiest to work with and get parts for is basically a wireless RS-232 with a maximum speed of 256kpbs. So say we have a very small low quality video frame that is 100x100 pixels. That is 10,000 pixels in total. Let's also say this is a black and white image so each pixel is 8-bits (1 byte) that represents the shade of the pixel from pure white to pure black in 256 steps. That means that each image is 80,000 pixels.
At 256kbps, that means each image 3.3 frames per second. This is for 8-bit black and white video frames that are only 100x100 pixels large. Just making the video colour is triples the size by three times sinthree primary colours instead of just black and white shading. Increasing the colour resolution to 16doubles the size. And increasing the resolution to 800x600 increases the size by 48 times. It's just not fast enough. Even if you used compression, it is still nowhere near fast enough.
Plus you have to write all the code to convert the video to RS-232 for transmission, and all the software to convert/display the video.
It is much easier to transmit video by RF if it is analog (like a TV signal) rather than digital. YOu could just get a regular analog wireless video camera with a transmitter and receiver, and then use a RCA video-to-USB adapter to read the video into your laptop. But a WiFi Webcam is still better.
Is there a reason you don't want to use a WiFi webcam? What are you trying to do?