Xu Bing describes how he created a fictional film by piecing together footage taken from ubiquitous surveillance cameras recording the daily lives of Chinese citizens. Photo: Xu Bing StudioSHENZHEN, China—U.S. tech giants and Chinese state-backed companies showed off the future of policing in this southern technology hub as they vie for a slice of the world’s biggest surveillance market. Companies from across the globe packed one of the world’s biggest surveillance trade shows to demonstrate the latest gizmos and algorithms powering the high-tech revolution in the industry, of which China is on the vanguard. Tools being hawked included facial-recognition cameras, iris scanners, software that can read a subject’s...

Source: Wall Street Journal November 01, 2017 12:42 UTC