{"observation":{"id":"6c4a9e61-0a03-4a1a-8561-2c8e71104184","tool":"kapwing","tool_name":"Kapwing","criterion":"motion-handling","criterion_name":"Motion handling","criterion_definition":"Does quality degrade when the subject moves quickly, gestures, or leans?","criterion_evidence_type":"transformation","criterion_rank_role":"decisive","criterion_rank_role_reason":"A video-background tool has to keep working when the subject moves; failure here means the core effect breaks down. (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. 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walk.","evidence_state":"verified","source":null,"artifacts":[{"url":"https://cdn.futuresmart.ai/public/aidemos/0a33a88a140b4edabc0ce9752426ab0a.mp4?v=1","role":"input","alt":null},{"url":"https://cdn.futuresmart.ai/public/aidemos/19003f99e3fa4028841a610e4a2cef30.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":"kapwing","tool_url":"https://aidemos.com/tools/kapwing","permalink":"https://aidemos.com/evidence/6c4a9e61-0a03-4a1a-8561-2c8e71104184","api_url":"https://ai.aidemos.com/v1/observations/6c4a9e61-0a03-4a1a-8561-2c8e71104184"},"peers":[{"id":"b6305dd2-b48a-40bc-a3fb-a98ecb0ddfb9","tool":"bria-ai","tool_name":"Bria.ai","verdict":"worked","score":null,"score_total":null,"note":"The walking subject stayed isolated while taking a few steps and then slowing to a stop, so normal walking motion did not break the cutout.","artifact_count":4,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/33fdb733d87a4f53a5c5a33ceddb5f77.mp4?v=1","evidence_url":"https://aidemos.com/evidence/b6305dd2-b48a-40bc-a3fb-a98ecb0ddfb9"},{"id":"bbe72f20-ca83-4da0-ab11-b8861a4baa78","tool":"cutout-pro","tool_name":"Cutout.Pro","verdict":"worked","score":null,"score_total":null,"note":"Keeps a walking full-body subject intact through several steps, with the figure still cleanly isolated and no scenery leakage.","artifact_count":3,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/54da4273c0c442259bc343dfd997353f.webm?v=1","evidence_url":"https://aidemos.com/evidence/bbe72f20-ca83-4da0-ab11-b8861a4baa78"},{"id":"1b518c2f-715d-492d-868c-8302e0d999d2","tool":"flexclip","tool_name":"FlexClip","verdict":"struggled","score":null,"score_total":null,"note":"A moving leg becomes noticeably softer and blurrier mid-stride, so motion blur adds extra edge softness to the cutout.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/2001402658ca413ab8685a341256de8a.png?v=1","evidence_url":"https://aidemos.com/evidence/1b518c2f-715d-492d-868c-8302e0d999d2"},{"id":"ea56916c-a73d-4bf6-873d-b40591fd6cf6","tool":"fotor","tool_name":"Fotor","verdict":"worked","score":null,"score_total":null,"note":"The subject stays tracked through the entire walk as the person moves farther away and more centered in frame, without losing the cutout.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/2779636f78e9437ebe97ac197e17eb7b.mp4?v=1","evidence_url":"https://aidemos.com/evidence/ea56916c-a73d-4bf6-873d-b40591fd6cf6"},{"id":"5654f1d9-9c4a-42f3-aa14-02f6f0d07289","tool":"media-io","tool_name":"Media.io","verdict":"worked","score":null,"score_total":null,"note":"The tracker held a walking subject through normal forward motion without losing the cutout or re-segmenting the body.","artifact_count":3,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/5b1d1125fc234e29aeb27c78230ae566.mp4?v=1","evidence_url":"https://aidemos.com/evidence/5654f1d9-9c4a-42f3-aa14-02f6f0d07289"},{"id":"69104224-9057-4919-b15e-0905702ba409","tool":"picsart","tool_name":"Picsart","verdict":"worked","score":null,"score_total":null,"note":"A backlit beach walker stayed isolated while moving forward across the clip, showing that the cutout tracks a single walking subject without dropping 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10.6-second result is not temporally consistent as one processed clip.","artifact_count":4,"evidence_url":"https://aidemos.com/evidence/229ebac1-975e-452d-a171-0ebb5b14dc9c"}],"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":"b6305dd2-b48a-40bc-a3fb-a98ecb0ddfb9","tool":"bria-ai","tool_name":"Bria.ai","verdict":"worked","score":null,"score_total":null,"note":"The walking subject stayed isolated while taking a few steps and then slowing to a stop, so normal walking motion did not break the cutout."},{"id":"bbe72f20-ca83-4da0-ab11-b8861a4baa78","tool":"cutout-pro","tool_name":"Cutout.Pro","verdict":"worked","score":null,"score_total":null,"note":"Keeps a walking full-body subject intact through several steps, with the figure still cleanly isolated and no scenery 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isolated while moving forward across the clip, showing that the cutout tracks a single walking subject without dropping them."}]}