publications([{ "lang": "en", "publisher": "ACM", "doi": "http://dx.doi.org/10.1145/3343055.3359710", "title": "Is it Real? Measuring the Effect of Resolution, Latency, Frame rate and Jitter on the Presence of Virtual Entities", "abstract": "The feeling of presence of virtual entities is an important ob-\r\njective in virtual reality, teleconferencing, augmented reality,\r\nexposure therapy and video games. Presence creates emotional\r\ninvolvement and supports intuitive and efficient interactions.\r\nAs a feeling, presence is mostly measured via subjective ques-\r\ntionnaire, but its validity is disputed. We introduce a new\r\nmethod to measure the contribution of several technical pa-\r\nrameters toward presence. Its robustness stems from asking\r\nparticipant to rank contrasts rather than asking absolute val-\r\nues, and from the statistical analysis of repeated answers. We\r\nimplemented this method in a user study where virtual entities\r\nwere created with a handheld perspective corrected display.\r\nWe evaluated the impact on two virtual entities’ presence of\r\nfour important parameters of digital visual stimuli: resolu-\r\ntion, latency, frame rate and jitter. Results suggest that jitter\r\nand frame rate are critical for presence but not latency, and\r\nresolution depends on the explored entity.", "authors": { "1": { "first_name": "Thibault", "last_name": "Louis" }, "2": { "first_name": "J.", "last_name": "Troccaz" }, "3": { "first_name": "Amélie", "last_name": "Rochet-Capellan" }, "4": { "first_name": "François", "last_name": "Bérard" } }, "year": 2019, "uri": "http://iihm.imag.fr/publication/LTR+19a/", "id": 872, "bibtype": "inproceedings", "editor": "ACM", "address": "[Deajon,] Republic of Korea", "date": "2019-11-10", "document": "http://iihm.imag.fr/publs/2019/iss_2019_camera_ready_id_1062.pdf", "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet", "booktitle": "ISS ’19", "type_publi": "icolcomlec", "abbr": "LTR+19a" }]);