A realistic dashcam video shows a busy downtown avenue during daytime with a continuous single camera shot from a moving vehicle. The scene contains 12 visible road vehicles, including a red compact sedan, a white SUV, a blue delivery van, a silver city bus, a black pickup truck, a yellow taxi, a gray hatchback, a green motorcycle, a white cargo truck, a dark blue sedan, a silver minivan, and a brown crossover SUV. The red compact sedan, white SUV, blue delivery van, silver city bus, and black pickup truck are anchor vehicles that remain visible throughout the entire 15-second video. Around 3–5 seconds, the yellow taxi accelerates from the right lane and moves ahead of the gray hatchback, while the white SUV gradually slows down due to a traffic light. Around 6–10 seconds, the blue delivery van changes lanes and briefly passes close to the red sedan, causing temporary partial occlusion between the two vehicles while both vehicles remain recognizable. Around 10–13 seconds, the black pickup truck overtakes the silver minivan while the city bus continues straight and the relative positions of the anchor vehicles keep changing naturally. Near the end of the video, all anchor vehicles remain visible with consistent appearance, colors, and identities.

A roadside traffic camera captures a realistic suburban road scene in a single continuous 15-second shot. The road contains 13 visible vehicles, including a blue sedan, a white family SUV, a red pickup truck, a silver school bus, a gray minivan, a black electric car, a green delivery truck, a white van, a yellow compact car, a dark blue SUV, a brown truck, a silver motorcycle, and a black sedan. The blue sedan, white family SUV, red pickup truck, silver school bus, and gray minivan are anchor vehicles that remain visible during the complete video. Around 3–5 seconds, the yellow compact car slows near a pedestrian crossing while the black electric car changes position behind the white SUV. Around 6–10 seconds, the red pickup truck moves closer to the blue sedan and temporarily blocks part of the gray minivan from the camera view, creating a natural occlusion challenge. Around 10–13 seconds, the white SUV changes lanes behind the school bus while the red pickup truck continues forward and the relative positions evolve naturally. Near the end, the blue sedan, white SUV, red pickup truck, school bus, and gray minivan remain recognizable.

A realistic vehicle-following camera captures a 15-second highway entrance merging scene under normal traffic conditions. The scene contains 12 visible vehicles, including a white SUV, a red sedan, a blue truck, a silver bus, a black van, a green crossover, a gray pickup truck, a yellow taxi, a white delivery van, a dark sedan, a brown SUV, and a motorcycle. Around 3–5 seconds, the black van begins merging into traffic while the green crossover slows to create space. Around 6–10 seconds, the black van passes close beside the red sedan and temporarily overlaps visually with the white SUV, creating a difficult consistency challenge. Around 10–13 seconds, the blue truck gradually overtakes the silver bus while the red sedan maintains its lane behind the SUV. At the end of the video, all anchor vehicles remain recognizable.

A realistic vehicle-following camera records a nighttime urban expressway scene with street lights and moderate traffic in one continuous 15-second video. The scene contains 13 visible vehicles, including a red sedan, a white SUV, a blue passenger bus, a black pickup truck, a silver van, a green electric car, a gray truck, a yellow taxi, a dark blue sedan, a white cargo van, a brown SUV, a motorcycle, and a silver hatchback. The red sedan, white SUV, blue passenger bus, black pickup truck, and silver van are anchor vehicles that remain visible throughout the whole video. Around 3–5 seconds, the green electric car accelerates and moves ahead of the silver hatchback while the yellow taxi changes lanes behind the white SUV. Around 6–10 seconds, the black pickup truck moves closer to the silver van, creating a temporary overlap between the two vehicles while both remain recognizable. Around 10–13 seconds, the red sedan gradually overtakes another vehicle while the blue bus and white SUV maintain their positions in traffic.

A realistic dashcam video shows a large parking area exit connected to a public road during daytime in a single continuous 15-second shot. The scene contains 12 visible vehicles, including a white SUV, a red compact car, a blue van, a black sedan, a silver pickup truck, a gray bus, a green crossover, a yellow taxi, a white delivery truck, a dark motorcycle, a brown sedan, and a silver minivan. The white SUV, red compact car, blue van, black sedan, and silver pickup truck are anchor vehicles that remain visible for the entire video. Around 3–5 seconds, several vehicles begin accelerating from different parking lanes, changing the relative positions of the vehicles. Around 6–10 seconds, the blue van crosses close in front of the black sedan while the silver pickup truck partially blocks the red compact car, creating a temporary occlusion challenge. Around 10–13 seconds, the white SUV turns onto the main road while the red compact car and blue van follow, maintaining their identities. Near the end of the video, the anchor vehicles remain clearly visible and consistent.

A realistic vehicle-following camera captures a 15-second highway bridge crossing scene during clear morning weather in a single continuous shot. The scene contains 12 visible road vehicles, including a red sedan, a white SUV, a blue semi-truck, a silver passenger bus, a black pickup truck, a green hatchback, a gray cargo van, a yellow service vehicle, a dark blue sedan, a white delivery truck, a brown crossover, and a motorcycle. The red sedan, white SUV, blue semi-truck, silver passenger bus, and black pickup truck are anchor vehicles that remain continuously visible throughout the entire video. Around 3–5 seconds, the green hatchback accelerates and moves around the gray cargo van while the yellow service vehicle slows slightly near the right lane. Around 6–10 seconds, the black pickup truck changes lanes close behind the white SUV, briefly overlapping in the camera view while both vehicles remain identifiable. Around 10–13 seconds, the red sedan gradually overtakes a slower vehicle while the blue semi-truck maintains a stable speed. Near the end of the video, all anchor vehicles remain recognizable with consistent appearance and unchanged identities.

A realistic dashcam captures vehicles driving through an urban tunnel and exiting onto a city road in a single continuous 15-second shot. The scene contains 11 visible vehicles, including a red SUV, a white sedan, a blue bus, a silver truck, a black crossover, a green van, a gray hatchback, a yellow taxi, a white cargo van, a dark sedan, and a motorcycle. The red SUV, white sedan, blue bus, silver truck, and black crossover are anchor vehicles that remain visible throughout the whole video. Around 3–5 seconds, vehicles approach the tunnel exit and the lighting gradually changes as they enter daylight. Around 6–10 seconds, the black crossover moves beside the white sedan and temporarily blocks part of the red SUV from view, creating a challenging appearance consistency event. Around 10–13 seconds, the blue bus continues straight while the silver truck merges into the right lane and the white sedan accelerates.

A realistic dashcam records a rainy urban road scene with wet pavement and multiple vehicles during evening traffic in a single continuous 15-second video. The scene contains 12 visible vehicles, including a red sedan, a white SUV, a blue bus, a black van, a silver pickup truck, a green compact car, a gray delivery truck, a yellow taxi, a dark SUV, a white minivan, a brown sedan, and a motorcycle. The red sedan, white SUV, blue bus, black van, and silver pickup truck are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, the yellow taxi slows near a pedestrian crossing while the green compact car changes lane position. Around 6–10 seconds, the black van drives beside the white SUV, creating temporary partial occlusion and challenging visual conditions due to rain reflections. Around 10–13 seconds, the red sedan accelerates while the blue bus continues forward and the silver pickup truck changes position. Near the end of the video, the anchor vehicles remain recognizable despite wet surfaces and changing reflections.

A realistic dashcam captures vehicles approaching and leaving a highway toll plaza in a single continuous 15-second shot. The scene contains 13 visible vehicles, including a red sedan, a white SUV, a blue truck, a silver bus, a black van, a green hatchback, a gray SUV, a yellow car, a white delivery van, a dark pickup truck, a brown crossover, a motorcycle, and a silver sedan. The red sedan, white SUV, blue truck, silver bus, and black van are anchor vehicles that remain visible throughout the video. Around 3–5 seconds, vehicles slow down near toll barriers and their relative positions change naturally. Around 6–10 seconds, the black van merges between lanes and briefly overlaps with the white SUV from the camera viewpoint. Around 10–13 seconds, vehicles accelerate after passing the toll gates and spread into different lanes. Near the end, all anchor vehicles remain visually consistent and identifiable.

A realistic dashcam captures a downtown street with pedestrian crossings and multiple vehicles in a single uninterrupted 15-second video. The scene contains 13 visible vehicles, including a red sedan, a white SUV, a blue bus, a black taxi, a silver truck, a green van, a gray hatchback, a yellow compact car, a dark SUV, a white delivery van, a brown sedan, a motorcycle, and a silver minivan. The red sedan, white SUV, blue bus, black taxi, and silver truck are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, the vehicles slow down as pedestrians cross and traffic spacing changes. Around 6–10 seconds, the black taxi passes close to the white SUV and temporarily overlaps with the red sedan from the camera perspective. Around 10–13 seconds, the blue bus accelerates after the crossing while the silver truck merges into traffic. Near the end, all anchor vehicles remain recognizable.

A realistic dashcam video captures a multi-lane urban expressway during daytime in a single continuous 15-second shot. The scene contains 14 visible road vehicles, including a red sedan, a white SUV, a blue city bus, a black pickup truck, a silver cargo van, a green hatchback, a gray truck, a yellow taxi, a dark blue SUV, a white minivan, a brown sedan, a motorcycle, a silver compact car, and a white delivery truck. The red sedan, white SUV, blue city bus, black pickup truck, and silver cargo van are anchor vehicles that remain continuously visible throughout the entire video. Around 3–5 seconds, the green hatchback accelerates and changes lanes while the yellow taxi slows down behind the white minivan. Around 6–10 seconds, the silver cargo van merges close beside the black pickup truck, producing temporary overlap and partial occlusion while both vehicles remain recognizable. Around 10–13 seconds, the red sedan overtakes a slower vehicle while the white SUV and blue bus maintain stable identities. Near the end of the video, all anchor vehicles remain visible and consistent in appearance.

A realistic vehicle-following camera records a complex highway interchange during daytime in a single uninterrupted 15-second shot. The scene contains 15 visible vehicles, including a red sedan, a white SUV, a blue semi-truck, a silver bus, a black van, a green pickup truck, a gray hatchback, a yellow taxi, a white cargo truck, a dark SUV, a brown sedan, a motorcycle, a silver minivan, a white compact car, and a blue delivery van. The red sedan, white SUV, blue semi-truck, silver bus, and black van are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, vehicles from an entrance ramp merge into traffic and modify the relative positions of nearby vehicles. Around 6–10 seconds, the black van and white SUV travel close together during merging, causing temporary overlap and partial visual blocking. Around 10–13 seconds, the blue semi-truck continues onto the right ramp while the red sedan maintains the main lane. Near the end, the same anchor vehicles remain clearly identifiable.

A realistic roadside traffic camera captures a dedicated city bus corridor during daytime in a single continuous 15-second shot. The scene contains 13 visible vehicles, including a red sedan, a white SUV, a blue bus, a silver van, a black taxi, a green hatchback, a gray truck, a yellow motorcycle, a white delivery van, a dark SUV, a brown sedan, a silver minivan, and a compact electric car. The red sedan, white SUV, blue bus, silver van, and black taxi are anchor vehicles that remain visible throughout the video. Around 3–5 seconds, the black taxi merges into traffic while the green hatchback slows near a traffic signal. Around 6–10 seconds, the blue bus passes close to the red sedan, creating a large-scale occlusion challenge while preserving vehicle identity. Around 10–13 seconds, the white SUV changes lane position while the bus continues forward and the silver van follows. Near the end, all anchor vehicles remain recognizable with unchanged appearances.

A realistic vehicle-following camera captures an industrial district road with trucks and passenger vehicles during daytime in a single 15-second video. The scene contains 14 visible vehicles, including a red sedan, a white SUV, a blue cargo truck, a silver trailer truck, a black van, a green pickup truck, a gray delivery vehicle, a yellow truck, a white minibus, a dark SUV, a brown sedan, a motorcycle, a silver hatchback, and a white van. The red sedan, white SUV, blue cargo truck, silver trailer truck, and black van are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, several delivery vehicles adjust positions near warehouse entrances. Around 6–10 seconds, the black van moves close to the white SUV while the blue truck partially blocks the silver trailer truck from view. Around 10–13 seconds, trucks merge into different lanes while passenger vehicles continue straight. Near the end, the anchor vehicles remain consistent and recognizable.

A realistic roadside traffic camera records a large traffic circle near a stadium during daytime in a single uninterrupted 15-second video. The scene contains 15 visible vehicles, including a red sedan, a white SUV, a blue bus, a silver truck, a black van, a green hatchback, a yellow taxi, a gray crossover, a white delivery van, a dark pickup truck, a brown SUV, a motorcycle, a silver sedan, a blue minivan, and a white compact car. The red sedan, white SUV, blue bus, silver truck, and black van are anchor vehicles that remain visible throughout the video. Around 3–5 seconds, vehicles enter and leave the circle, changing relative positions. Around 6–10 seconds, the blue bus passes close to the red sedan and temporarily blocks another vehicle from view. Around 10–13 seconds, the silver truck exits while the white SUV continues forward and the black van maintains its lane. Near the end, anchor vehicles remain recognizable.

A realistic dashcam captures a large urban intersection during daytime in a single continuous 15-second video. The scene contains 14 visible vehicles, including a red sedan, a white SUV, a blue city bus, a black pickup truck, a silver delivery truck, a green hatchback, a yellow taxi, a gray crossover, a white van, a dark sedan, a brown SUV, a motorcycle, a blue minivan, and a silver compact car. The red sedan, white SUV, blue city bus, black pickup truck, and silver delivery truck are anchor vehicles that remain continuously visible throughout the entire video. Around 3–5 seconds, the yellow taxi turns right while the green hatchback changes lanes behind the white SUV, altering the relative positions of several vehicles. Around 6–10 seconds, the silver delivery truck crosses close in front of the red sedan, creating temporary partial occlusion while both vehicles remain recognizable. Around 10–13 seconds, the blue bus continues straight while the white SUV completes a lane change and the black pickup truck maintains its position. Near the end of the video, the anchor vehicles remain visually consistent and identifiable.

A realistic dashcam records vehicles traveling through a city flyover and underpass area in a single continuous 15-second sequence. The scene contains 12 visible vehicles, including a red SUV, a white sedan, a blue bus, a silver truck, a black crossover, a green van, a gray hatchback, a yellow taxi, a dark pickup truck, a white cargo van, a brown sedan, and a motorcycle. The red SUV, white sedan, blue bus, silver truck, and black crossover are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, several vehicles split into different lanes as some enter the underpass while others remain on the flyover. Around 6–10 seconds, the black crossover temporarily moves behind the silver truck and becomes partially hidden before reappearing naturally. Around 10–13 seconds, the blue bus exits the underpass while the red SUV and white sedan continue forward. Near the end, all anchor vehicles remain recognizable despite changing viewpoints and lighting.

A realistic dashcam records traffic inside a multi-level shopping mall parking structure in a single continuous 15-second video. The scene contains 12 visible vehicles, including a red SUV, a white sedan, a blue minivan, a black hatchback, a silver pickup truck, a green electric car, a gray van, a yellow compact car, a dark crossover, a white delivery vehicle, a brown sedan, and a motorcycle. The red SUV, white sedan, blue minivan, black hatchback, and silver pickup truck are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, vehicles slow near a ramp intersection and adjust their positions. Around 6–10 seconds, the black hatchback passes close to the blue minivan and partially blocks it from view while both remain identifiable. Around 10–13 seconds, the red SUV and white sedan move toward the exit while other anchor vehicles continue behind. Near the end, the anchor vehicles remain recognizable.

A realistic dashcam captures an urban road where vehicles interact around an emergency lane in a single continuous 15-second video. The scene contains 14 visible vehicles, including a red sedan, a white SUV, a blue bus, a black pickup truck, a silver van, a green hatchback, a gray truck, a yellow taxi, a white delivery van, a dark SUV, a brown sedan, a motorcycle, a blue compact car, and a white minivan. The red sedan, white SUV, blue bus, black pickup truck, and silver van are anchor vehicles that remain visible throughout the video. Around 3–5 seconds, several vehicles adjust positions to maintain space near the emergency lane. Around 6–10 seconds, the silver van moves close to the white SUV and temporarily blocks part of the black pickup truck. Around 10–13 seconds, the red sedan accelerates while the bus and truck maintain consistent positions. Near the end, anchor vehicles remain recognizable.

A realistic dashcam records a busy downtown intersection at night with artificial lighting in a single uninterrupted 15-second shot. The scene contains 13 visible vehicles, including a red sedan, a white SUV, a blue bus, a black taxi, a silver truck, a green hatchback, a yellow compact car, a gray SUV, a white van, a dark sedan, a brown crossover, a motorcycle, and a blue minivan. The red sedan, white SUV, blue bus, black taxi, and silver truck are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, vehicles begin moving after a signal change. Around 6–10 seconds, the black taxi passes close to the white SUV, creating temporary overlap under changing lighting conditions. Around 10–13 seconds, the blue bus continues forward while the red sedan and silver truck change positions. Near the end, anchor vehicles remain recognizable.

A realistic vehicle-following camera captures a busy highway merging area during daytime in a single continuous 15-second video. The scene contains 14 visible road vehicles, including a red sedan, a white SUV, a blue semi-truck, a silver passenger bus, a black van, a green crossover, a gray pickup truck, a yellow taxi, a white cargo van, a dark sedan, a brown SUV, a motorcycle, a blue compact car, and a silver hatchback. The red sedan, white SUV, blue semi-truck, silver passenger bus, and black van are anchor vehicles that remain continuously visible throughout the entire video. Around 3–5 seconds, the green crossover enters from an acceleration lane and changes its position relative to the white SUV and black van. Around 6–10 seconds, the black van merges close beside the red sedan, creating temporary overlap and partial occlusion while both vehicles remain recognizable. Around 10–13 seconds, the blue semi-truck continues forward while the silver bus and red sedan gradually increase their distances. Near the end of the video, all anchor vehicles remain visually consistent with unchanged appearance and identity.

A realistic vehicle-following camera records vehicles entering and leaving a highway tunnel in a single uninterrupted 15-second shot. The scene contains 13 visible vehicles, including a red sedan, a white SUV, a blue truck, a silver bus, a black van, a green hatchback, a gray pickup truck, a yellow compact car, a white cargo vehicle, a dark SUV, a brown sedan, a motorcycle, and a silver minivan. The red sedan, white SUV, blue truck, silver bus, and black van are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, vehicles begin entering the tunnel and adjust speeds due to reduced visibility. Around 6–10 seconds, the black van changes lanes close to the white SUV, creating temporary occlusion under tunnel lighting conditions. Around 10–13 seconds, vehicles exit the tunnel into daylight while maintaining their original identities. Near the end, all anchor vehicles remain recognizable despite dramatic lighting changes.

A realistic dashcam captures a construction detour area where vehicles navigate temporary lanes in a single continuous 15-second video. The scene contains 13 visible vehicles, including a red SUV, a white sedan, a blue truck, a silver van, a black pickup truck, a green crossover, a yellow maintenance vehicle, a gray bus, a white delivery van, a dark sedan, a brown SUV, a motorcycle, and a silver compact car. The red SUV, white sedan, blue truck, silver van, and black pickup truck are anchor vehicles that remain visible throughout the entire sequence. Around 3–5 seconds, vehicles adjust lanes around construction barriers while maintaining safe distances. Around 6–10 seconds, the silver van moves close to the white sedan and temporarily blocks part of the red SUV. Around 10–13 seconds, the blue truck merges back into the main lane while the anchor vehicles continue forward. Near the end, the same vehicles remain recognizable.

A realistic dashcam captures a road junction near a railway crossing during daytime in a single continuous 15-second video. The scene contains 12 visible vehicles, including a red sedan, a white SUV, a blue bus, a black van, a silver truck, a green hatchback, a yellow taxi, a gray crossover, a white minivan, a dark pickup truck, a brown sedan, and a motorcycle. The red sedan, white SUV, blue bus, black van, and silver truck are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, the crossing signal changes and vehicles slow down naturally. Around 6–10 seconds, the black van moves beside the white SUV and partially hides it from view while both remain recognizable. Around 10–13 seconds, vehicles accelerate after the crossing clears while maintaining their identities. Near the end, anchor vehicles remain visually consistent.

A realistic dashcam records a suburban main road with multiple side-road merges during daytime in a single continuous 15-second video. The scene contains 13 visible vehicles, including a red SUV, a white sedan, a blue van, a silver truck, a black hatchback, a green crossover, a yellow taxi, a gray bus, a white delivery vehicle, a dark sedan, a brown SUV, a motorcycle, and a silver compact car. The red SUV, white sedan, blue van, silver truck, and black hatchback are anchor vehicles that remain visible throughout the entire video. Around 3–5 seconds, vehicles entering from side roads merge into traffic and change relative positions. Around 6–10 seconds, the blue van merges close to the black hatchback and temporarily blocks it from view. Around 10–13 seconds, the red SUV changes lanes while the white sedan and silver truck continue forward. Near the end, all anchor vehicles remain recognizable.
