{"observation":{"id":"63a0255b-f35b-4832-ac30-186f4b5a7f08","tool":"bria-ai","tool_name":"Bria.ai","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":"busy-urban-street","scenario_name":"Busy Urban Street","group_tag":"remove-or-replace-video-backgrounds-using-ai","scenario_description":"A video of a person walking through a busy city street with multiple people, moving vehicles, and a visually complex urban background. It was used to stress segmentation and tracking under heavy background distraction and continuous motion.","modality":"video","input_text":null,"input_artifact_refs":[{"alt":null,"url":"https://d3epheqghktydj.cloudfront.net/remove-or-replace-video-backgrounds-usin-input-3-8dd8c54c98be.mp4","role":"input","filename":"Input 3.mp4"}],"stresses":["Complex background segmentation","Handling background distractions","Subject tracking","Temporal consistency across frames","Edge accuracy during continuous movement"],"verdict":"worked","score":null,"score_total":null,"note":"The output preserved the source resolution exactly at 1080×1920, with no downscaling.","evidence_state":"verified","source":null,"artifacts":[{"url":"https://cdn.futuresmart.ai/public/aidemos/a32888ca6ac147bd9d6340154f24d98b.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-3-8dd8c54c98be.mp4","filename":"Input 3.mp4","alt":"Busy Urban Street","role":"input"}],"modality":"video","stresses":["Complex background segmentation","Handling background distractions","Subject tracking","Temporal consistency across frames","Edge accuracy during continuous movement"]},"tool_page_slug":"bria-ai","tool_url":"https://aidemos.com/tools/bria-ai","permalink":"https://aidemos.com/evidence/63a0255b-f35b-4832-ac30-186f4b5a7f08","api_url":"https://ai.aidemos.com/v1/observations/63a0255b-f35b-4832-ac30-186f4b5a7f08"},"peers":[{"id":"38440c5b-4b6d-4704-8a36-74aba8d22968","tool":"cutout-pro","tool_name":"Cutout.Pro","verdict":"struggled","score":null,"score_total":null,"note":"Downscales the roughly 1080×1920 source to 360×640 and truncates a 20.02s clip to 5.005s.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/20b5f3786a08406283ec8b5aab4ab63e.webm?v=1","evidence_url":"https://aidemos.com/evidence/38440c5b-4b6d-4704-8a36-74aba8d22968"},{"id":"59a7afa4-8773-452f-bd67-9d9db0837ba5","tool":"descript","tool_name":"Descript","verdict":"failed","score":null,"score_total":null,"note":"It downscales a 1080×1920 source to a 720×1280 export instead of preserving the input resolution.","artifact_count":1,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/dca33a74307f4bc09b691bc5497249f6.mp4?v=1","evidence_url":"https://aidemos.com/evidence/59a7afa4-8773-452f-bd67-9d9db0837ba5"},{"id":"be7d10a9-602a-4477-b184-73208a97d356","tool":"fotor","tool_name":"Fotor","verdict":"failed","score":null,"score_total":null,"note":"A vertical 1080×1920 source was exported as a 2464×1080 landscape canvas, with the subject confined to a narrow vertical strip.","artifact_count":3,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/3c0ca5bc1f464b8abbab3d31308c7fe1.png?v=1","evidence_url":"https://aidemos.com/evidence/be7d10a9-602a-4477-b184-73208a97d356"},{"id":"3864adc7-cb96-44b3-8872-55416a31c961","tool":"invideo-ai","tool_name":"InVideo AI","verdict":"failed","score":null,"score_total":null,"note":"It silently downgraded to 1080×1918 instead of true 4K, and the close crop looks soft rather than 4K-sharp.","artifact_count":4,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/6eb329900ba84cfd8e0f590abe8da3e7.png?v=1","evidence_url":"https://aidemos.com/evidence/3864adc7-cb96-44b3-8872-55416a31c961"},{"id":"090d220d-4f8e-46fd-83a7-7da60241470f","tool":"veed","tool_name":"VEED","verdict":"worked","score":null,"score_total":null,"note":"Preserves 1080×1920 output resolution on export, with the clip staying at 1080×1920 and duration remaining essentially unchanged (20.02s→20.00s).","artifact_count":2,"thumbnail":"https://cdn.futuresmart.ai/public/aidemos/b172169ed97a4bc3984d63ccc9590e78.mp4?v=1","evidence_url":"https://aidemos.com/evidence/090d220d-4f8e-46fd-83a7-7da60241470f"}],"other_criteria":[{"id":"f49ba8f7-72d7-4c65-8c57-3debbb3e0d77","criterion":"edge-quality","criterion_name":"Edge quality","rank_role":"decisive","verdict":"struggled","score":null,"score_total":null,"note":"The cutouts are dim and partially soft-edged, with semi-transparent edge fringing and residue in gaps that should read as pure black.","artifact_count":3,"evidence_url":"https://aidemos.com/evidence/f49ba8f7-72d7-4c65-8c57-3debbb3e0d77"},{"id":"ff44ce55-a457-4336-8446-d7c684d0fd90","criterion":"hair-and-fine-detail","criterion_name":"Hair and fine detail","rank_role":"decisive","verdict":"struggled","score":null,"score_total":null,"note":"Snow-on-subject detail was mostly removed, and a thin phone cord/earbud wire was softened further until it was barely visible.","artifact_count":3,"evidence_url":"https://aidemos.com/evidence/ff44ce55-a457-4336-8446-d7c684d0fd90"},{"id":"99188ecf-9681-45a2-abca-29de720013a7","criterion":"hair-and-fine-detail","criterion_name":"Hair and fine detail","rank_role":"decisive","verdict":"struggled","score":null,"score_total":null,"note":"The busy-street cutout loses fine detail such as fingers and backpack strap edges, which become blobbed or softened after removal.","artifact_count":1,"evidence_url":"https://aidemos.com/evidence/99188ecf-9681-45a2-abca-29de720013a7"},{"id":"3fdb7ce8-2f77-457f-83c9-ae067f7d42d6","criterion":"motion-handling","criterion_name":"Motion handling","rank_role":"decisive","verdict":"worked","score":null,"score_total":null,"note":"Both pedestrians remained separately isolated while walking, so multi-subject motion did not cause subject loss.","artifact_count":4,"evidence_url":"https://aidemos.com/evidence/3fdb7ce8-2f77-457f-83c9-ae067f7d42d6"}],"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":"38440c5b-4b6d-4704-8a36-74aba8d22968","tool":"cutout-pro","tool_name":"Cutout.Pro","verdict":"struggled","score":null,"score_total":null,"note":"Downscales the roughly 1080×1920 source to 360×640 and truncates a 20.02s clip to 5.005s."},{"id":"59a7afa4-8773-452f-bd67-9d9db0837ba5","tool":"descript","tool_name":"Descript","verdict":"failed","score":null,"score_total":null,"note":"It downscales a 1080×1920 source to a 720×1280 export instead of preserving the input resolution."},{"id":"be7d10a9-602a-4477-b184-73208a97d356","tool":"fotor","tool_name":"Fotor","verdict":"failed","score":null,"score_total":null,"note":"A vertical 1080×1920 source was exported as a 2464×1080 landscape canvas, with the subject confined to a narrow vertical strip."},{"id":"3864adc7-cb96-44b3-8872-55416a31c961","tool":"invideo-ai","tool_name":"InVideo AI","verdict":"failed","score":null,"score_total":null,"note":"It silently downgraded to 1080×1918 instead of true 4K, and the close crop looks soft rather than 4K-sharp."},{"id":"090d220d-4f8e-46fd-83a7-7da60241470f","tool":"veed","tool_name":"VEED","verdict":"worked","score":null,"score_total":null,"note":"Preserves 1080×1920 output resolution on export, with the clip staying at 1080×1920 and duration remaining essentially unchanged (20.02s→20.00s)."}]}