{"observation":{"id":"3a6106c1-f519-470f-ad9d-7d5125b936f6","tool":"invideo-ai","tool_name":"InVideo AI","criterion":"lighting-adaptation","criterion_name":"Lighting adaptation","criterion_definition":"Does the replaced background look naturally lit relative to the subject, or obviously composited?","criterion_evidence_type":"transformation","criterion_rank_role":"decisive","criterion_rank_role_reason":"If the replaced background does not match the subject’s lighting, the composite looks fake, so this is central to replacement quality. (3 of 3 judges)","scenario":"oregon-coast-walking","scenario_name":"Oregon Coast Walking","group_tag":"remove-or-replace-video-backgrounds-using-ai","scenario_description":"A daylight outdoor video of a single person walking along an Oregon coast beach, with the camera following the subject and ocean waves, sand, and sky visible in the background. It was used to test background removal and replacement on a moving subject in a natural outdoor setting.","modality":"video","input_text":null,"input_artifact_refs":[{"alt":null,"url":"https://d3epheqghktydj.cloudfront.net/remove-or-replace-video-backgrounds-usin-input-1-0263564d1ef2.mp4","role":"input","filename":"Input 1.mp4"}],"stresses":["Outdoor background removal","Subject segmentation during movement","Hair and edge preservation","AI background replacement quality"],"verdict":"struggled","score":null,"score_total":null,"note":"A requested sunset look was rendered as a warmer color grade on the same midday sun position; the sun disc stayed the same size, brightness, and height in frame instead of moving to a low-horizon lighting setup.","evidence_state":"observed","source":null,"artifacts":[{"url":"https://cdn.futuresmart.ai/public/aidemos/9805ddf9c2084177812beaf9b1706548.png?v=1","role":"context","alt":null},{"url":"https://cdn.futuresmart.ai/public/aidemos/7e25bbfd114f4d00bbc6bb256708cc62.png?v=1","role":"context","alt":null}],"run_id":"10155228-7ce8-438a-a210-547331ef080b","study_title":"Remove or Replace Video Backgrounds Using AI","study_kind":"generation","research_task":"86ba42c2d","tested_at":null,"completeness":"input-and-output","input":{"state":"files","text":null,"files":[{"url":"https://d3epheqghktydj.cloudfront.net/remove-or-replace-video-backgrounds-usin-input-1-0263564d1ef2.mp4","filename":"Input 1.mp4","alt":"Oregon Coast Walking","role":"input"}],"modality":"video","stresses":["Outdoor background removal","Subject segmentation during movement","Hair and edge preservation","AI background replacement quality"]},"tool_page_slug":"invideo-ai","tool_url":"https://aidemos.com/tools/invideo-ai","permalink":"https://aidemos.com/evidence/3a6106c1-f519-470f-ad9d-7d5125b936f6","api_url":"https://ai.aidemos.com/v1/observations/3a6106c1-f519-470f-ad9d-7d5125b936f6"},"peers":[{"id":"5f048dbe-f49b-4bb0-a108-0a2511c1f675","tool":"descript","tool_name":"Descript","verdict":"struggled","score":null,"score_total":null,"note":"The replacement background does not integrate lighting naturally: the subject’s rim light points from behind/above while the scene’s sun sits upper-left near the horizon, creating a direction mismatch.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/7114952d583d4b62942705d6322ac2aa.png?v=1","evidence_url":"https://aidemos.com/evidence/5f048dbe-f49b-4bb0-a108-0a2511c1f675"}],"other_criteria":[{"id":"de505db3-6b05-4b7b-ae59-1db54889cbdd","criterion":"background-options","criterion_name":"Background options","rank_role":"context","verdict":"mixed","score":null,"score_total":null,"note":"The generated replacement background can include small texture glitches: one desert output showed a dark smeared patch and a stray green dot on the dune ridgeline.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/de505db3-6b05-4b7b-ae59-1db54889cbdd"},{"id":"8d0080e0-55e3-482a-a727-5b452f63e556","criterion":"edge-quality","criterion_name":"Edge quality","rank_role":"decisive","verdict":"worked","score":null,"score_total":null,"note":"It kept the moving subject’s silhouette clean, with no visible green-screen fringing or halo around the edge.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/8d0080e0-55e3-482a-a727-5b452f63e556"},{"id":"e807fd05-98ac-4505-8749-c31d0398dbc2","criterion":"output-resolution","criterion_name":"Output resolution","rank_role":"context","verdict":"worked","score":null,"score_total":null,"note":"It held the export at 2160×3838, matching the source’s roughly 4K vertical resolution instead of downscaling it.","artifact_count":2,"evidence_url":"https://aidemos.com/evidence/e807fd05-98ac-4505-8749-c31d0398dbc2"}],"appears_in":[{"page_type":"ranking","slug":"video-background-removers","title":"Best AI Tools to Remove or Replace Video Backgrounds with AI","url":"https://aidemos.com/best/video-background-removers","binding":"run"}],"same_scenario":[{"id":"5f048dbe-f49b-4bb0-a108-0a2511c1f675","tool":"descript","tool_name":"Descript","verdict":"struggled","score":null,"score_total":null,"note":"The replacement background does not integrate lighting naturally: the subject’s rim light points from behind/above while the scene’s sun sits upper-left near the horizon, creating a direction mismatch."}]}