{"observation":{"id":"1f7967d5-28c4-44e9-8ef0-d9546946a176","tool":"descript","tool_name":"Descript","criterion":"output-resolution","criterion_name":"Output resolution","criterion_definition":"Does it maintain the input resolution or downscale?","criterion_evidence_type":"transformation","criterion_rank_role":"context","criterion_rank_role_reason":"Keeping full resolution is important for delivery quality, but it is a downstream output constraint rather than the main background-removal task itself. (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":"failed","score":null,"score_total":null,"note":"It downscales a 2160×3840 source to a 720×1280 export instead of preserving the original resolution.","evidence_state":"verified","source":null,"artifacts":[{"url":"https://cdn.futuresmart.ai/public/aidemos/70d1858c94734b40a3a3db38c25f22ab.mp4?v=1","role":"output","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":"descript","tool_url":"https://aidemos.com/tools/descript","permalink":"https://aidemos.com/evidence/1f7967d5-28c4-44e9-8ef0-d9546946a176","api_url":"https://ai.aidemos.com/v1/observations/1f7967d5-28c4-44e9-8ef0-d9546946a176"},"peers":[{"id":"bce633a7-8281-4a69-962a-177f1820c232","tool":"bria-ai","tool_name":"Bria.ai","verdict":"worked","score":null,"score_total":null,"note":"The output preserved the source resolution exactly at 2160×3840, with no downscaling.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/5ed0ba6d5022450b9f218641754ec515.mp4?v=1","evidence_url":"https://aidemos.com/evidence/bce633a7-8281-4a69-962a-177f1820c232"},{"id":"b6080c21-d9d9-4a35-a86d-d1e031f559d5","tool":"cutout-pro","tool_name":"Cutout.Pro","verdict":"struggled","score":null,"score_total":null,"note":"Downscales the roughly 2160×3840 source to 360×640, so it does not preserve native resolution.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/54da4273c0c442259bc343dfd997353f.webm?v=1","evidence_url":"https://aidemos.com/evidence/b6080c21-d9d9-4a35-a86d-d1e031f559d5"},{"id":"35a1c0ff-d71c-4fb0-b94c-0224bbf34f33","tool":"fotor","tool_name":"Fotor","verdict":"failed","score":null,"score_total":null,"note":"A vertical 2160×3840 source was exported into a landscape 2464×1080 canvas, leaving the subject confined to a narrow center strip.","artifact_count":2,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/e3e8ff06d2dd4817a6730e6a96d3adcf.png?v=1","evidence_url":"https://aidemos.com/evidence/35a1c0ff-d71c-4fb0-b94c-0224bbf34f33"},{"id":"e807fd05-98ac-4505-8749-c31d0398dbc2","tool":"invideo-ai","tool_name":"InVideo AI","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,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/e96c7168fe254ddc808b35e760ac3a31.mp4?v=1","evidence_url":"https://aidemos.com/evidence/e807fd05-98ac-4505-8749-c31d0398dbc2"},{"id":"f0181a99-b9f3-4e9a-bca4-8f88263ea240","tool":"veed","tool_name":"VEED","verdict":"mixed","score":null,"score_total":null,"note":"Downscales a 2160×3840 source to 1080×1920 on export, cutting the resolution in half while keeping duration nearly unchanged (5.30s→5.27s).","artifact_count":2,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/a850232ca9c248cca964e24ea5965349.mp4?v=1","evidence_url":"https://aidemos.com/evidence/f0181a99-b9f3-4e9a-bca4-8f88263ea240"}],"other_criteria":[{"id":"74bae4c9-d90a-46bb-bd37-1e54aeddf263","criterion":"edge-quality","criterion_name":"Edge quality","rank_role":"decisive","verdict":"struggled","score":null,"score_total":null,"note":"The cutout shows a visible cyan-blue halo around the backlit head and shoulders, so the edge is not a clean silhouette.","artifact_count":1,"evidence_url":"https://aidemos.com/evidence/74bae4c9-d90a-46bb-bd37-1e54aeddf263"},{"id":"5f048dbe-f49b-4bb0-a108-0a2511c1f675","criterion":"lighting-adaptation","criterion_name":"Lighting adaptation","rank_role":"decisive","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,"evidence_url":"https://aidemos.com/evidence/5f048dbe-f49b-4bb0-a108-0a2511c1f675"}],"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":"bce633a7-8281-4a69-962a-177f1820c232","tool":"bria-ai","tool_name":"Bria.ai","verdict":"worked","score":null,"score_total":null,"note":"The output preserved the source resolution exactly at 2160×3840, with no downscaling."},{"id":"b6080c21-d9d9-4a35-a86d-d1e031f559d5","tool":"cutout-pro","tool_name":"Cutout.Pro","verdict":"struggled","score":null,"score_total":null,"note":"Downscales the roughly 2160×3840 source to 360×640, so it does not preserve native resolution."},{"id":"35a1c0ff-d71c-4fb0-b94c-0224bbf34f33","tool":"fotor","tool_name":"Fotor","verdict":"failed","score":null,"score_total":null,"note":"A vertical 2160×3840 source was exported into a landscape 2464×1080 canvas, leaving the subject confined to a narrow center strip."},{"id":"e807fd05-98ac-4505-8749-c31d0398dbc2","tool":"invideo-ai","tool_name":"InVideo AI","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."},{"id":"f0181a99-b9f3-4e9a-bca4-8f88263ea240","tool":"veed","tool_name":"VEED","verdict":"mixed","score":null,"score_total":null,"note":"Downscales a 2160×3840 source to 1080×1920 on export, cutting the resolution in half while keeping duration nearly unchanged (5.30s→5.27s)."}]}