If you are moving from USB to WiFi you need to pay close attention to what transfer speed you need. You probably need at least 802.11 ac 433Mbps for imaging data. Keep in mind that the network overhead will impact the actual transfer rate.
For 802.11 a/b/g/n/ac 433Mbps, you can use the following cypress development kit CYW954907AEVAL1F Evaluation Kit. It uses the Cypress CYW54907 embedded wireless system-on-a-chip. It is supported by Wiced, and there is a module version Type 1PS | LBWA1UZ1PS , Murata Manufacturing Co., Ltd.
Here is a Video.