Today Google came out with a new app called Pho­to­Scan that will scan your old pho­to col­lec­tion. Like just every­one, I have stash­es of shoe­box­es inher­it­ed from par­ents full of pic­tures. Some were scanned in a scan­ner, back when I had one that was com­pat­i­ble with a com­put­er. More recent­ly, I’ve used scan­ning apps like Read­dle’s Scan­ner Pro and Scan­bot. These de-skew the pho­tographs of the pho­tos that your phone takes but the res­o­lu­tion’s is not always the best and there can be some glare from over­head lights, espe­cial­ly when you’re work­ing with a glossy orig­i­nal pictures.

Google’s approach clev­er­ly stitch­es togeth­er mul­ti­ple pho­tos. It uses a process much like their 360-degree pho­to app: you start with a overview pho­to. Once tak­en, you see four cir­cles hov­er­ing to the sides of the pic­ture. Move the cam­era to each and it takes more pic­tures. Once you’ve gone over all four cir­cles, Google stitch­es these five pho­tos togeth­er in such a way that there’s no per­spec­tive distortion.

What’s remark­able is the speed. I scanned 15 pho­tos in while also mak­ing din­ner for the kids. The dimen­sions of all looked good and the res­o­lu­tion looks about as good as the orig­i­nal. These are good results for some­thing so easy.

Check out Google’s announce­ment blog post for details.